Added monitoring #9
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WalkthroughThis pull request introduces new Grafana dashboards for Loki and Tendermint, enhancing monitoring capabilities. It includes updates to the README for Grafana setup instructions, modifications to the inventory configuration, and the addition of tasks for monitoring setup in the Ansible playbook. New templates for Loki, Prometheus, and Promtail configurations and services are also introduced. Overall, these changes facilitate a comprehensive monitoring solution for the multi-node network. Changes
Possibly related PRs
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Actionable comments posted: 25
🧹 Outside diff range and nitpick comments (27)
multinode/templates/node-exporter.j2 (3)
7-8: Enhance service reliability with start rate limiting.Add start rate limiting to prevent rapid restart loops:
Restart=always RestartSec=3 +StartLimitInterval=300 +StartLimitBurst=5
1-3: Add additional service dependencies.Consider adding dependencies to ensure proper startup order:
[Unit] Description=Node_exporter After=network-online.target +Wants=network-online.target +After=prometheus.service
6-6: Consider adding CLI arguments for better configurability.The Node Exporter supports various CLI arguments that might be useful:
-ExecStart=/usr/local/bin/node_exporter +ExecStart=/usr/local/bin/node_exporter \ + --web.listen-address=:9100 \ + --collector.disable-defaults \ + --collector.cpu \ + --collector.meminfo \ + --collector.loadavg \ + --collector.filesystem \ + --collector.netdevThis helps:
- Explicitly define the port
- Enable only necessary collectors
- Reduce resource usage
multinode/templates/promtail-config.j2 (1)
11-19: Improve log scraping configuration for better log handling.The current scrape configuration might miss important log handling features:
- No log rotation handling
- No multiline processing for stack traces
- No timestamp extraction configuration
Consider enhancing the configuration:
scrape_configs: - job_name: system static_configs: - targets: - localhost labels: job: {{ node_name }} - __path__: /var/log/{{ network }}.log + __path__: /var/log/{{ network }}*.log stream: stdout + pipeline_stages: + - multiline: + firstline: '^\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}' + max_wait_time: 3s + - timestamp: + source: time + format: '2006-01-02 15:04:05' + - labels: + level:multinode/templates/node-service.j2 (1)
18-19: Consider adding log rotation configuration.While the log redirection is correctly configured, continuous logging without rotation could lead to disk space issues. Consider adding a logrotate configuration for
/var/log/{{ network }}.log.Would you like me to help create a logrotate configuration template for this service?
multinode/templates/prometheus.j2 (5)
1-4: Consider increasing the scraping intervals.The 15-second intervals might be too aggressive for blockchain metrics, potentially leading to unnecessary resource consumption. Consider increasing both intervals to 30s or 1m, which would still provide adequate monitoring while reducing network traffic and storage requirements.
global: - scrape_interval: 15s - evaluation_interval: 15s + scrape_interval: 30s + evaluation_interval: 30s
5-11: Enable basic alerting configuration.The alerting configuration is currently commented out. For effective blockchain monitoring, it's crucial to have alerts for node availability and critical metrics.
Consider uncommenting and configuring alerts for:
- Node downtime
- Consensus participation
- Block production delays
- Resource utilization thresholds
alerting: alertmanagers: - static_configs: - targets: - # - alertmanager:9093 + - localhost:9093
12-16: Add essential recording rules for blockchain metrics.The rules configuration is empty. Recording rules are essential for aggregating blockchain metrics and reducing query load.
Consider adding rules for:
- Block production rate
- Validator participation
- Network consensus status
- Transaction throughput
Would you like me to help create a basic set of recording rules for these metrics?
35-43: Remove unnecessary trailing empty lines.The file contains multiple trailing empty lines that should be removed.
{% endfor %} - - - - - - - - -
1-43: Implement comprehensive security measures for the monitoring stack.The current configuration might expose sensitive metrics. Consider implementing these security measures:
- Use TLS for all metric endpoints
- Implement network segmentation for monitoring traffic
- Set up authentication for all metric endpoints
- Configure proper firewall rules
- Implement rate limiting for scrape endpoints
Would you like guidance on implementing these security measures?
multinode/main.yml (3)
53-58: Consider adding task dependencies and error handling.While the Grafana setup task looks correct, consider these improvements for robustness:
- Add
tagsto allow selective execution- Add
whencondition to validate monitoring hosts exist- Consider adding error handling for grafana role failures
- name: Grafana Setup hosts: monitoring vars: ansible_ssh_common_args: "-o StrictHostKeyChecking=no" + tags: + - monitoring + - grafana + when: groups['monitoring'] is defined and groups['monitoring'] | length > 0 roles: - grafana🧰 Tools
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51-52: Fix formatting issues and improve documentation.
- Remove extra blank lines (51-52)
- Remove trailing spaces on lines 57, 64, and 65
- Consider adding comments to document the monitoring setup flow
- name: Cleanup the playbook hosts: localhost roles: - Cleanup_playbook - - name: Grafana Setup hosts: monitoring vars: ansible_ssh_common_args: "-o StrictHostKeyChecking=no" - roles: + roles: - grafana - name: Installations for monitoring hosts: validators:fullnodes vars: ansible_ssh_common_args: "-o StrictHostKeyChecking=no" - roles: - - monitoring_install + roles: + - monitoring_installAlso applies to: 57-58, 64-65
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1-65: Review task ordering and dependencies.The monitoring setup is placed after the cleanup task, which might not be ideal. Consider:
- Moving monitoring setup before cleanup
- Adding explicit dependencies between tasks
- Documenting the required order of operations
Would you like assistance in restructuring the playbook for better task organization?
🧰 Tools
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multinode/Dashboards/loki.json (2)
97-121: Improve templating configuration for better filtering.The current templating only includes a job variable. Consider adding more variables for finer-grained filtering.
Add these common variables to enhance log filtering:
"templating": { "list": [ { "current": {}, "datasource": { "type": "loki", "uid": "${DS_LOKI}" }, "definition": "", "label": "Job", "name": "job", "options": [], "query": { "label": "job", "refId": "LokiVariableQueryEditor-VariableQuery", "stream": "", "type": 1 }, "refresh": 1, "regex": "", "sort": 1, "type": "query" - } + }, + { + "current": {}, + "datasource": { + "type": "loki", + "uid": "${DS_LOKI}" + }, + "definition": "", + "label": "Level", + "name": "level", + "options": [], + "query": { + "label": "level", + "refId": "LokiVariableQueryEditor-VariableQuery", + "stream": "", + "type": 1 + }, + "refresh": 1, + "regex": "", + "sort": 1, + "type": "query" + } ] }
122-132: Consider adjusting the time range settings.The default time range of 6 hours might be too short for investigating issues that occurred earlier.
Consider these improvements:
- Extend the default time range to 24 hours
- Add quick ranges for common scenarios
"time": { - "from": "now-6h", + "from": "now-24h", "to": "now" }, - "timepicker": {}, + "timepicker": { + "refresh_intervals": [ + "5s", + "10s", + "30s", + "1m", + "5m", + "15m", + "30m", + "1h", + "2h", + "1d" + ], + "time_options": [ + "15m", + "1h", + "3h", + "6h", + "12h", + "24h", + "2d", + "7d", + "30d" + ] + },multinode/roles/monitoring_install/tasks/main.yml (3)
81-107: Consolidate duplicate Promtail config tasks.The tasks for copying Promtail config for fullnodes and validators are nearly identical and can be consolidated.
Consider using a single task:
- name: Copy the promtail config file become: true template: src: "{{ playbook_dir }}/templates/promtail-config.j2" dest: "/usr/local/bin/promtail-config.yaml" owner: "{{ ansible_user }}" group: "{{ ansible_user }}" vars: node_name: >- {%- if inventory_hostname in groups['fullnodes'] -%} fullnode{{ groups['fullnodes'].index(inventory_hostname) }} {%- else -%} validator{{ groups['validators'].index(inventory_hostname) }} {%- endif -%} when: "inventory_hostname in groups['fullnodes'] + groups['validators']"🧰 Tools
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109-111: Replace shell module with file module for permissions.Using the shell module for chmod is unnecessary when the file module can handle permissions.
Replace with:
- name: Set promtail permissions become: true file: path: /usr/local/bin/promtail mode: '0755'🧰 Tools
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1-149: Fix YAML formatting issues.The file has multiple formatting issues:
- Excessive blank lines at the end (lines 136-149)
- Trailing spaces throughout the file
- Inconsistent spacing after colons
Consider using
yamllintin your CI pipeline to catch these issues automatically.🧰 Tools
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multinode/roles/validator_bin_copy/tasks/main.yml (2)
77-84: Consider adding log rotation configuration.While the log file setup is correct, it's recommended to configure log rotation to prevent potential disk space issues in production. This is particularly important for long-running validator nodes that generate extensive logs.
Consider adding a task to configure logrotate:
- name: Configure log rotation become: true template: src: "{{ playbook_dir }}/templates/logrotate.j2" dest: "/etc/logrotate.d/{{ network }}" mode: '0644'With a template file containing:
/var/log/{{ network }}.log { daily rotate 7 compress delaycompress missingok notifempty create 0644 {{ ansible_user }} {{ ansible_user }} }
101-107: Fix trailing whitespace and document namespace change.
- Remove trailing whitespace on lines 106 and 107
- Document the reason for the namespace change to help future maintainers understand the monitoring implications
Apply this diff to fix the whitespace:
path: "{{ node_home }}/config/config.toml" regexp: 'namespace = "cometbft"' - replace: 'namespace = "tendermint"' - + replace: 'namespace = "tendermint"'Consider adding a comment explaining the namespace change:
# Change namespace to "tendermint" for compatibility with existing Grafana dashboards # and consistent metric collection across the network🧰 Tools
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multinode/roles/fullnode_bin_copy/tasks/main.yml (1)
101-108: Consider adding log rotation configurationWhile the log file setup is correct, consider adding log rotation to prevent disk space issues over time. This is especially important for monitoring logs that can grow significantly.
Consider adding a logrotate configuration:
+ - name: Configure log rotation + become: true + copy: + dest: /etc/logrotate.d/{{ network }} + content: | + /var/log/{{ network }}.log { + daily + rotate 7 + compress + delaycompress + missingok + notifempty + create 0644 {{ ansible_user }} {{ ansible_user }} + }multinode/README.md (1)
40-42: Enhance the monitoring overview section.The monitoring overview section would benefit from additional details about:
- What metrics and logs are being collected
- Which components are involved (Prometheus, Loki, etc.)
- What visualizations/dashboards are available
Consider expanding the section like this:
6. Grafana Monitoring - -Monitoring is set up for all the instances used. To check out the monitoring setup, scroll down to the [Steps to setup monitoring](#steps-to-setup-monitoring) section. + +The monitoring setup includes: +- Prometheus for collecting metrics from nodes +- Loki for aggregating logs +- Node Exporter for system metrics +- Grafana dashboards for: + - Tendermint metrics (blockchain performance, consensus, etc.) + - System metrics (CPU, memory, disk usage) + - Log aggregation and analysis + +For setup instructions, see the [Steps to setup monitoring](#steps-to-setup-monitoring) section.multinode/roles/grafana/tasks/main.yml (1)
1-186: Consider improving playbook idempotency and error handling.While the playbook successfully sets up the monitoring stack, consider these architectural improvements:
- Add tags to allow selective execution of tasks
- Add handlers for service restarts
- Add proper error handling and recovery mechanisms
- Add health checks after service installations
Example structure:
# At the beginning of the playbook - name: Set monitoring stack version variables set_fact: grafana_version: "latest" prometheus_version: "2.53.2" loki_version: "3.2.0" tags: [grafana, prometheus, loki] # After service installations - name: Verify service health uri: url: "http://localhost:{{ item.port }}{{ item.path }}" return_content: yes register: health_check until: health_check.status == 200 retries: 6 delay: 10 loop: - { port: 3000, path: "/api/health" } # Grafana - { port: 9090, path: "/-/healthy" } # Prometheus - { port: 3100, path: "/ready" } # Loki tags: [health_check]🧰 Tools
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multinode/roles/droplet_create/tasks/main.yml (2)
51-73: Clean up monitoring node creation task.A few issues to address in the monitoring node creation task:
- Remove extra space in task name "monitoring node Droplet"
- Consider enabling the monitoring flag since this is a monitoring node
- Remove commented out with_sequence directive as it's not needed for a single node
- name: Create monitoring node Droplet + name: Create monitoring node Droplet digital_ocean_droplet: state: present name: "monitor" size: s-2vcpu-4gb image: ubuntu-22-04-x64 region: "{{ region }}" ssh_keys: "{{ ssh_key_id }}" - monitoring: false + monitoring: true ipv6: false user_data: | #cloud-config users: - name: {{ user }} groups: sudo sudo: "ALL=(ALL) NOPASSWD:ALL" shell: /bin/bash ssh-authorized-keys: - {{ ssh_key_variable }} api_token: "{{ digital_ocean_api_token }}" - # with_sequence: start=0 end={{ fullnode_count-1 }} register: do3
75-84: Clean up IP extraction task.The IP extraction task needs cleanup:
- Task name should be more specific (e.g., "Extract monitoring node IP address")
- Remove unnecessary commented code
- Fix trailing whitespace
- name: Extract IP address and ID + name: Extract monitoring node IP address set_fact: - # droplet_id: "{{ do3.data.droplet.id }}" - monitor_ip: "{{ do3.data.droplet.networks.v4[0].ip_address }}" + monitor_ip: "{{ do3.data.droplet.networks.v4[0].ip_address }}" - # - name: Extract IP addresses - # set_fact: - # droplet_ids: "{{ do3.results | json_query('[].data.droplet.id') | flatten }}" - # monitor_ip: "{{ do3.results | json_query('[].data.droplet.networks.v4[0].ip_address') | flatten }}"🧰 Tools
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multinode/Dashboards/tendermint.json (2)
51-78: Consider enhancing the dashboard description.While the current description provides a basic overview, it could be more informative by including:
- Key metrics being monitored
- Refresh intervals
- Required permissions
Apply this diff to enhance the description:
- "description": "A Grafana Dashboard that reports on the blockchain and consensus stats available from the Tendermint metrics endpoint.", + "description": "A Grafana Dashboard that monitors Tendermint blockchain performance and health metrics including block height, transactions, validators, voting power, and network I/O. Updates every 30 seconds. Requires Prometheus datasource and metrics collection from Tendermint nodes.",
1122-1123: Review connected peers threshold.The maximum value for the connected peers gauge is set to 20, which might be too low for a production network.
Consider adjusting the max value based on your network size:
- "max": 20, + "max": 50,
📜 Review details
Configuration used: CodeRabbit UI
Review profile: CHILL
📒 Files selected for processing (19)
multinode/Dashboards/loki.json(1 hunks)multinode/Dashboards/tendermint.json(1 hunks)multinode/README.md(3 hunks)multinode/inventory.ini(2 hunks)multinode/main.yml(1 hunks)multinode/roles/droplet_create/tasks/main.yml(2 hunks)multinode/roles/explorer_faucet_setup/tasks/main.yml(1 hunks)multinode/roles/fullnode_bin_copy/tasks/main.yml(2 hunks)multinode/roles/grafana/tasks/main.yml(1 hunks)multinode/roles/monitoring_install/tasks/main.yml(1 hunks)multinode/roles/validator_bin_copy/tasks/main.yml(2 hunks)multinode/templates/loki-config.j2(1 hunks)multinode/templates/loki-service.j2(1 hunks)multinode/templates/node-exporter.j2(1 hunks)multinode/templates/node-service.j2(1 hunks)multinode/templates/prometheus-service.j2(1 hunks)multinode/templates/prometheus.j2(1 hunks)multinode/templates/promtail-config.j2(1 hunks)multinode/templates/promtail-service.j2(1 hunks)
✅ Files skipped from review due to trivial changes (3)
- multinode/templates/loki-service.j2
- multinode/templates/prometheus-service.j2
- multinode/templates/promtail-service.j2
🧰 Additional context used
📓 Learnings (1)
multinode/roles/explorer_faucet_setup/tasks/main.yml (1)
Learnt from: ritvik-32
PR: vitwit/playbooks#6
File: multinode/roles/explorer_faucet_setup/tasks/main.yml:128-134
Timestamp: 2024-09-20T09:47:41.565Z
Learning: In this Ansible playbook, installing npm packages globally did not cause permission issues on the target systems.
🪛 LanguageTool
multinode/README.md
[uncategorized] ~101-~101: Did you mean: “By default,”?
Context: ...g server ip:3000 to login into grafana. By default the username is admin.Setup the new pas...
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[grammar] ~101-~101: This sentence should probably be started with a verb instead of the noun ‘Setup’. If not, consider inserting a comma for better clarity.
Context: ...afana. By default the username is admin.Setup the new password there if required. 2....
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[uncategorized] ~105-~105: Consider adding a hyphen.
Context: ...shboard section and click on new on the top right side and then on import. 4. Go to the ...
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[uncategorized] ~107-~107: You might be missing the article “the” here.
Context: ... Go to the dashboard directory and copy contents of any dashboard and then import that d...
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[uncategorized] ~107-~107: A comma may be missing after the conjunctive/linking adverb ‘Similarly’.
Context: ...shboard and then import that dashboard. Similarly repeat the process for other two and sa...
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[uncategorized] ~107-~107: You might be missing the article “the” here.
Context: ...board. Similarly repeat the process for other two and save those dashboards.
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multinode/main.yml
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multinode/roles/monitoring_install/tasks/main.yml
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multinode/roles/validator_bin_copy/tasks/main.yml
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🔇 Additional comments (17)
multinode/templates/node-exporter.j2 (1)
1-11: Verify Prometheus scraping configuration.
Ensure that Prometheus is configured to scrape metrics from this Node Exporter instance.
✅ Verification successful
Node Exporter metrics collection is properly configured in Prometheus
The Prometheus configuration template (prometheus.j2) includes Node Exporter metrics collection for both fullnodes and validators:
- Port 9100 (Node Exporter's default port) is included in the targets for each node
- Configuration is dynamically generated for all hosts in
fullnodesandvalidatorsgroups - Metrics are collected with 15-second intervals as per global configuration
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Description: Check if Prometheus configuration includes Node Exporter target
# Look for Node Exporter job configuration in Prometheus templates
rg -l "job_name.*node.*exporter" --type yaml
Length of output: 46
Script:
#!/bin/bash
# Let's try a broader search for Prometheus configuration files and Node Exporter related settings
# Search for prometheus configuration files
echo "=== Searching for Prometheus configuration files ==="
fd -e yml -e yaml prometheus
fd prometheus.yml
fd prometheus.yaml
# Search for any Node Exporter related configuration
echo -e "\n=== Searching for Node Exporter configuration ==="
rg -i "node.*exporter" --type yaml
rg -i "node.*exporter" --type ini
# Look for Prometheus related playbooks or templates
echo -e "\n=== Searching for Prometheus related templates ==="
fd -e j2 prometheus
Length of output: 2160
Script:
#!/bin/bash
# Let's examine the Prometheus configuration template to check for Node Exporter scraping configuration
echo "=== Checking Prometheus configuration template ==="
cat multinode/templates/prometheus.j2
echo -e "\n=== Checking Prometheus service configuration ==="
cat multinode/templates/prometheus-service.j2
Length of output: 1643
multinode/templates/promtail-config.j2 (1)
1-19: Verify monitoring stack integration.
Let's verify the integration points with other monitoring components.
✅ Verification successful
Let me gather more information about the monitoring stack integration.
Let me try one more verification to check the monitoring group configuration and Loki setup.
Let me check one more thing to verify the Loki and Promtail configuration.
Based on the verification results, I can now provide a final response about the monitoring stack integration.
Monitoring stack integration is properly configured.
The verification shows:
- Loki is configured to listen on port 3100 for log ingestion
- Promtail is properly configured to push logs to Loki using the monitoring host's address
- Log file paths are correctly templated with
{{ network }}.log - Systemd services for both Loki and Promtail are properly defined with correct permissions and dependencies
- The monitoring role handles installation and configuration of both components
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Description: Verify Loki accessibility and log file configuration
# Test 1: Check if Loki port is defined in inventory or group vars
echo "Checking Loki port configuration..."
rg -l "3100" --type yaml
# Test 2: Verify log file path pattern in other configurations
echo "Checking log file path references..."
rg -l "/var/log/\{\{ network \}\}"
Length of output: 399
Script:
#!/bin/bash
# Check service configurations and port definitions
echo "Checking service configurations..."
rg -A 5 "3100" --type yaml
echo "Checking log configurations in service files..."
cat multinode/templates/node-service.j2
echo "Checking monitoring group configuration..."
fd -e yml -e yaml inventory group_vars -x cat {}
Length of output: 1117
Script:
#!/bin/bash
# Check inventory and monitoring group configuration
echo "Checking inventory files..."
fd inventory -x cat {}
echo "Checking monitoring related tasks..."
fd monitoring -x cat {}
echo "Checking Loki related configurations..."
rg -C 5 "monitoring" --type yaml
Length of output: 233617
Script:
#!/bin/bash
# Check Loki and Promtail configurations
echo "Checking Loki configuration..."
fd -e yml -e yaml -e j2 -x cat {} | rg -A 5 -B 5 "loki|promtail"
echo "Checking monitoring roles..."
fd monitoring_install -x ls -R {}
Length of output: 5481
multinode/templates/node-service.j2 (1)
18-19: Verify log file permissions and directory existence.
The log redirection configuration looks good, but ensure that:
- The
{{ansible_user}}has write permissions to/var/log/{{ network }}.log - The log file/directory is created with correct permissions before service start
✅ Verification successful
Log file setup is properly handled with correct permissions
The log file setup is properly managed in both validator and fullnode roles:
- File is created with
touchif it doesn't exist - Ownership is set to
{{ ansible_user }} - Permissions are set to
0644(user read/write, group/others read) - Task runs with elevated privileges (
become: true)
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Description: Check if the playbook handles log file setup
# Expected: Tasks for creating log file with correct permissions
# Search for log file setup tasks
rg -l '/var/log/.*\.log' --type yaml
Length of output: 137
Script:
#!/bin/bash
# Check the content of the files that mention log paths to see if they handle permissions
rg -A 5 -B 5 '/var/log/.*\.log' --type yaml
Length of output: 1615
multinode/inventory.ini (1)
12-14: LGTM: Monitoring section addition is well-structured.
The empty monitoring section is correctly positioned and will be populated by the droplet creation tasks.
multinode/templates/loki-config.j2 (1)
19-28: Verify index period matches retention requirements
The schema configuration looks good, but verify that the 24-hour index period aligns with your retention and query requirements.
Consider adjusting based on:
- Expected query patterns
- Data retention requirements
- Available storage capacity
For production, consider implementing a retention policy:
limits_config:
retention_period: 30d # Adjust based on requirementsmultinode/main.yml (1)
60-65: Clarify monitoring installation scope and impact.
The monitoring installation task targets all nodes but lacks clarity on:
- What monitoring components are being installed
- Potential impact on running nodes
- Restart requirements
Also, consider adding tags for selective execution.
🧰 Tools
🪛 yamllint
[error] 64-64: trailing spaces
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[error] 65-65: trailing spaces
(trailing-spaces)
multinode/Dashboards/loki.json (1)
1-32: Verify Loki version compatibility.
The dashboard requires Loki version 1.0.0, which is quite old. This might limit access to newer features and improvements.
Consider updating to a more recent Loki version to benefit from:
- Better performance and stability
- Enhanced querying capabilities
- Security improvements
multinode/roles/validator_bin_copy/tasks/main.yml (1)
94-100: Verify Prometheus endpoint accessibility.
While enabling Prometheus metrics is correct, ensure that:
- The Prometheus endpoint is accessible on the expected port (default: 26660)
- Firewall rules allow Prometheus scraping
- The metrics endpoint is only accessible from trusted networks
Consider adding a task to verify the endpoint:
- name: Verify Prometheus endpoint
wait_for:
host: "{{ inventory_hostname }}"
port: 26660
timeout: 30
register: endpoint_check
ignore_errors: yesmultinode/roles/fullnode_bin_copy/tasks/main.yml (2)
66-72: Verify the impact of namespace change
Changing the metrics namespace from "cometbft" to "tendermint" could affect existing monitoring setups. Please ensure:
- All Grafana dashboards are updated to use the new "tendermint" namespace
- No existing monitoring alerts or rules depend on the old "cometbft" namespace
Let's check for any remaining references to the old namespace:
#!/bin/bash
# Search for any remaining references to the old namespace
echo "Checking for 'cometbft' namespace in yaml files..."
rg 'cometbft' --type yaml
echo "Checking for 'cometbft' namespace in json files (for Grafana dashboards)..."
rg 'cometbft' --type json59-65: LGTM: Prometheus metrics properly enabled
The task correctly enables Prometheus metrics in the Tendermint configuration, which is essential for the monitoring setup.
Let's verify the Prometheus configuration in other related files:
✅ Verification successful
Prometheus configuration change is appropriate and well-integrated
The change to enable Prometheus metrics in config.toml is verified to be part of a comprehensive monitoring setup that includes:
- Node exporter for system metrics
- Prometheus server for metrics collection
- Grafana for visualization
- Loki and Promtail for log aggregation
The modification aligns perfectly with the monitoring infrastructure being deployed, as evidenced by the complete monitoring stack configuration in the Ansible roles.
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Check for any Prometheus-related configurations in other files
rg -l 'prometheus.*=.*(?:true|false)' --type yaml
Length of output: 508
Script:
#!/bin/bash
# Let's check the actual content of config.toml files in the repository
fd "config.toml" --type f --exec cat {}
# Also check for any prometheus-related configurations in TOML files
rg -l 'prometheus.*=.*(?:true|false)' --type toml
# Check for any monitoring or metrics related tasks in Ansible files
rg -l 'prometheus|metrics|monitoring' --type yaml
Length of output: 588
Script:
#!/bin/bash
# Let's check the content of monitoring-related files to understand the complete setup
echo "=== Checking monitoring installation tasks ==="
cat multinode/roles/monitoring_install/tasks/main.yml
echo -e "\n=== Checking Grafana tasks ==="
cat multinode/roles/grafana/tasks/main.yml
echo -e "\n=== Checking main playbook for monitoring flow ==="
cat multinode/main.yml | grep -A5 -B5 "monitoring"
Length of output: 9298
multinode/README.md (2)
11-11: LGTM!
Clear addition of Grafana monitoring as a new component.
96-97: LGTM!
Appropriate addition of [monitoring] to the cleanup instructions.
multinode/roles/grafana/tasks/main.yml (1)
1-30: LGTM! Grafana installation follows best practices.
The installation block correctly sets up Grafana using the official repository and proper security measures (GPG key verification).
multinode/roles/explorer_faucet_setup/tasks/main.yml (2)
21-28: Good cleanup: Removing commented code.
Removing the commented-out Node.js installation task improves code maintainability.
30-41: Improved Node.js installation reliability, but seems unrelated to monitoring.
The changes improve the Node.js installation process through:
- Better error handling with retries
- More verbose output for debugging
- Clearer shell script structure
- Explicit environment variable export
However, these changes appear unrelated to the PR's monitoring objectives. Consider splitting these Node.js installation improvements into a separate PR to maintain focused changes.
Let's verify if there are any monitoring-related changes in this file that might justify these modifications:
multinode/Dashboards/tendermint.json (2)
1-50: LGTM! Well-structured dashboard configuration.
The dashboard configuration is properly set up with:
- Clear datasource requirements
- Appropriate panel type dependencies
- Compatible Grafana version specification
1535-1619: LGTM! Well-configured dashboard settings.
The dashboard settings are properly configured with:
- Appropriate refresh interval (30s) for real-time monitoring
- Relevant tags for easy discovery
- Flexible template variables for multi-chain/node support
- Reasonable default time range
There was a problem hiding this comment.
Actionable comments posted: 12
🧹 Outside diff range and nitpick comments (15)
multinode/main.yml (2)
54-60: Consider task ordering for monitoring setupThe monitoring installation on validators/fullnodes should happen before the Grafana setup to ensure metrics are available when Grafana starts.
Consider moving this task before the "Grafana Setup" task to ensure proper initialization order.
🧰 Tools
🪛 yamllint
[error] 58-58: trailing spaces
(trailing-spaces)
51-52: Fix formatting issuesThe following formatting issues were detected:
- Trailing spaces on lines 51, 58, and 65
- Missing newline at end of file
Apply this diff to fix the formatting:
vars: ansible_ssh_common_args: "-o StrictHostKeyChecking=no" - roles: + roles: - grafana vars: ansible_ssh_common_args: "-o StrictHostKeyChecking=no" - roles: + roles: - monitoring_install roles: - - Cleanup_playbook + - Cleanup_playbook +Also applies to: 58-59, 65-65
🧰 Tools
🪛 yamllint
[error] 51-51: trailing spaces
(trailing-spaces)
multinode/roles/monitoring_install/tasks/main.yml (3)
49-53: Update package cache before installationThe
unzippackage installation should update the package cache first.- name: install unzip apt: name: unzip state: present + update_cache: yes + cache_valid_time: 3600 become: true🧰 Tools
🪛 yamllint
[error] 50-50: trailing spaces
(trailing-spaces)
82-108: Consolidate duplicate configuration tasksThe tasks for copying Promtail config are duplicated for fullnodes and validators. Consider consolidating them into a single task.
- - name: Copy the promtail config file /usr/local/bin for fullnode servers - become: true - template: - src: "{{ playbook_dir }}/templates/promtail-config.j2" - dest: "/usr/local/bin/promtail-config.yaml" - owner: "{{ ansible_user }}" - group: "{{ ansible_user }}" - loop: "{{ range(0, fullnode_count) | list }}" - loop_control: - index_var: item - vars: - node_name: "fullnode{{ item }}" - when: "inventory_hostname == groups['fullnodes'][item]" - - - name: Copy the promtail config file /usr/local/bin for validator servers - become: true - template: - src: "{{ playbook_dir }}/templates/promtail-config.j2" - dest: "/usr/local/bin/promtail-config.yaml" - owner: "{{ ansible_user }}" - group: "{{ ansible_user }}" - loop: "{{ range(0, validators_count) | list }}" - loop_control: - index_var: item - vars: - node_name: "validator{{ item }}" - when: "inventory_hostname == groups['validators'][item]" + - name: Copy the promtail config file + become: true + template: + src: "{{ playbook_dir }}/templates/promtail-config.j2" + dest: "/usr/local/bin/promtail-config.yaml" + owner: "{{ ansible_user }}" + group: "{{ ansible_user }}" + validate: 'promtail --dry-run --config.file=%s' + vars: + node_name: >- + {%- if inventory_hostname in groups['fullnodes'] -%} + fullnode{{ groups['fullnodes'].index(inventory_hostname) }} + {%- else -%} + validator{{ groups['validators'].index(inventory_hostname) }} + {%- endif -%}🧰 Tools
🪛 yamllint
[warning] 93-93: too many spaces after colon
(colons)
[error] 94-94: trailing spaces
(trailing-spaces)
[error] 107-107: trailing spaces
(trailing-spaces)
[error] 108-108: trailing spaces
(trailing-spaces)
127-137: Consolidate cleanup tasksThe file cleanup tasks can be consolidated into a single task using with_items.
- - name: Delete promtail-linux-amd64 file on the home directory - file: - path: "{{ user_home }}/promtail-linux-amd64" - state: absent - become: true - - - name: Delete promtail-linux-amd64 zip file on the home directory - file: - path: "{{ user_home }}/promtail-linux-amd64.zip" - state: absent - become: true + - name: Cleanup temporary files + file: + path: "{{ item }}" + state: absent + become: true + with_items: + - "{{ user_home }}/promtail-linux-amd64" + - "{{ user_home }}/promtail-linux-amd64.zip" + - "{{ user_home }}/node_exporter-1.8.2.linux-amd64" + - "{{ user_home }}/node_exporter-1.8.2.linux-amd64.tar.gz"🧰 Tools
🪛 yamllint
[error] 131-131: trailing spaces
(trailing-spaces)
[error] 137-137: trailing spaces
(trailing-spaces)
multinode/roles/validator_bin_copy/tasks/main.yml (2)
77-84: LGTM! Consider adding log rotation.The log file creation task is well-structured and follows best practices. However, for production environments, you might want to consider implementing log rotation to prevent disk space issues.
Consider adding a logrotate configuration to manage the log file growth:
- name: Configure logrotate for network logs become: true template: src: logrotate.j2 dest: /etc/logrotate.d/{{ network }} mode: '0644'
94-100: LGTM! Consider adding post-task validation.The Prometheus enablement task is well-structured. However, it would be beneficial to validate the change after applying it.
Consider adding a validation task:
- name: Verify prometheus configuration become: true command: grep '^prometheus = true' {{ node_home }}/config/config.toml register: prometheus_check failed_when: prometheus_check.rc != 0 changed_when: falsemultinode/roles/droplet_create/tasks/main.yml (3)
52-72: LGTM! Consider monitoring node resource requirements.The monitoring node creation task is well-structured and consistent with other node creation tasks. However, since this node will run monitoring services (Grafana, Prometheus, etc.), consider if the current resource allocation (
s-2vcpu-4gb) will be sufficient for your monitoring needs.
74-77: Fix formatting issues.Remove trailing spaces and ensure consistent formatting:
- monitor_ip: "{{ do3.data.droplet.networks.v4[0].ip_address }}" - + monitor_ip: "{{ do3.data.droplet.networks.v4[0].ip_address }}"🧰 Tools
🪛 yamllint
[error] 76-76: trailing spaces
(trailing-spaces)
[error] 77-77: trailing spaces
(trailing-spaces)
164-170: Fix formatting issues.The task logic looks good, but there are some formatting issues to address:
- name: Add monitor to inventory add_host: name: "monitor" ansible_host: "{{ monitor_ip }}" ansible_user: "{{ user }}" groups: monitoring - +🧰 Tools
🪛 yamllint
[error] 170-170: no new line character at the end of file
(new-line-at-end-of-file)
[error] 170-170: trailing spaces
(trailing-spaces)
multinode/roles/grafana/tasks/main.yml (1)
55-55: Fix formatting issues
- Remove trailing spaces on line 55
- Add newline at end of file
- name: Cleanup downloaded artifacts file: path: "{{ user_home }}/prometheus-2.53.2.linux-amd64.tar.gz" - state: absent + state: absent - name: Restart the journald service file become: true systemd: name: systemd-journald - state: restarted + state: restarted +Also applies to: 191-191
🧰 Tools
🪛 yamllint
[error] 55-55: trailing spaces
(trailing-spaces)
multinode/README.md (4)
11-11: Fix component numbering.The component numbering jumps from 4 to 11. Please correct the numbering to be sequential (1-5).
42-49: Improve list formatting for better readability.The monitoring components list has inconsistent indentation. Consider restructuring as follows:
The monitoring setup includes: - - Prometheus for collecting metrics from nodes - - Loki for aggregating logs - - Node Exporter for system metrics - - Grafana dashboards for: - - Tendermint metrics (blockchain performance, consensus, etc.) - - System metrics (CPU, memory, disk usage) + * Prometheus for collecting metrics from nodes + * Loki for aggregating logs + * Node Exporter for system metrics + * Grafana dashboards for: + - Tendermint metrics (blockchain performance, consensus, etc.) + - System metrics (CPU, memory, disk usage)🧰 Tools
🪛 Markdownlint
43-43: Expected: 0; Actual: 2
Unordered list indentation(MD007, ul-indent)
44-44: Expected: 0; Actual: 2
Unordered list indentation(MD007, ul-indent)
45-45: Expected: 0; Actual: 2
Unordered list indentation(MD007, ul-indent)
46-46: Expected: 0; Actual: 2
Unordered list indentation(MD007, ul-indent)
47-47: Expected: 0; Actual: 2
Unordered list indentation(MD007, ul-indent)
48-48: Expected: 0; Actual: 2
Unordered list indentation(MD007, ul-indent)
49-49: Expected: 0; Actual: 2
Unordered list indentation(MD007, ul-indent)
103-103: Improve section list formatting.Consider using a bullet list for better readability:
-### [validators] ,[fullnodes], [loadbalancer], [monitoring] +### Sections to remove: +* [validators] +* [fullnodes] +* [loadbalancer] +* [monitoring]
106-144: Enhance monitoring setup instructions further.The instructions are well-structured and much improved. However, a few enhancements would make them even better:
- Format URLs properly:
-- Note down the Prometheus server URL (default: http://localhost:9090) -- Note down the Loki server URL (default: http://localhost:3100) +- Note down the Prometheus server URL (default: `http://localhost:9090`) +- Note down the Loki server URL (default: `http://localhost:3100`)
- Add more verification steps:
### Verification 1. Verify that dashboards are showing data +2. Check that all data sources show as connected +3. Ensure logs are flowing into Loki +4. Verify Prometheus targets are in "UP" state🧰 Tools
🪛 LanguageTool
[duplication] ~132-~132: Possible typo: you repeated a word
Context: ... Dashboards 1. Navigate to Dashboards > Import 2. Import each dashboard from theDashboarddir...(ENGLISH_WORD_REPEAT_RULE)
🪛 Markdownlint
110-110: null
Bare URL used(MD034, no-bare-urls)
111-111: null
Bare URL used(MD034, no-bare-urls)
📜 Review details
Configuration used: CodeRabbit UI
Review profile: CHILL
📒 Files selected for processing (9)
multinode/README.md(4 hunks)multinode/inventory.ini(2 hunks)multinode/main.yml(1 hunks)multinode/roles/droplet_create/tasks/main.yml(2 hunks)multinode/roles/explorer_faucet_setup/tasks/main.yml(2 hunks)multinode/roles/fullnode_bin_copy/tasks/main.yml(2 hunks)multinode/roles/grafana/tasks/main.yml(1 hunks)multinode/roles/monitoring_install/tasks/main.yml(1 hunks)multinode/roles/validator_bin_copy/tasks/main.yml(1 hunks)
🚧 Files skipped from review as they are similar to previous changes (2)
- multinode/inventory.ini
- multinode/roles/explorer_faucet_setup/tasks/main.yml
🧰 Additional context used
🪛 Markdownlint
multinode/README.md
43-43: Expected: 0; Actual: 2
Unordered list indentation
(MD007, ul-indent)
44-44: Expected: 0; Actual: 2
Unordered list indentation
(MD007, ul-indent)
45-45: Expected: 0; Actual: 2
Unordered list indentation
(MD007, ul-indent)
46-46: Expected: 0; Actual: 2
Unordered list indentation
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47-47: Expected: 0; Actual: 2
Unordered list indentation
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48-48: Expected: 0; Actual: 2
Unordered list indentation
(MD007, ul-indent)
49-49: Expected: 0; Actual: 2
Unordered list indentation
(MD007, ul-indent)
110-110: null
Bare URL used
(MD034, no-bare-urls)
111-111: null
Bare URL used
(MD034, no-bare-urls)
🪛 LanguageTool
multinode/README.md
[duplication] ~132-~132: Possible typo: you repeated a word
Context: ... Dashboards 1. Navigate to Dashboards > Import 2. Import each dashboard from the Dashboard dir...
(ENGLISH_WORD_REPEAT_RULE)
🪛 yamllint
multinode/main.yml
[error] 51-51: trailing spaces
(trailing-spaces)
[error] 58-58: trailing spaces
(trailing-spaces)
[error] 65-65: no new line character at the end of file
(new-line-at-end-of-file)
[error] 65-65: trailing spaces
(trailing-spaces)
multinode/roles/droplet_create/tasks/main.yml
[error] 76-76: trailing spaces
(trailing-spaces)
[error] 77-77: trailing spaces
(trailing-spaces)
[error] 170-170: no new line character at the end of file
(new-line-at-end-of-file)
[error] 170-170: trailing spaces
(trailing-spaces)
multinode/roles/grafana/tasks/main.yml
[error] 55-55: trailing spaces
(trailing-spaces)
[error] 191-191: no new line character at the end of file
(new-line-at-end-of-file)
multinode/roles/monitoring_install/tasks/main.yml
[warning] 1-1: too many blank lines
(1 > 0) (empty-lines)
[error] 14-14: trailing spaces
(trailing-spaces)
[error] 19-19: trailing spaces
(trailing-spaces)
[error] 29-29: trailing spaces
(trailing-spaces)
[error] 30-30: trailing spaces
(trailing-spaces)
[error] 40-40: trailing spaces
(trailing-spaces)
[error] 50-50: trailing spaces
(trailing-spaces)
[error] 55-55: trailing spaces
(trailing-spaces)
[error] 75-75: trailing spaces
(trailing-spaces)
[error] 76-76: trailing spaces
(trailing-spaces)
[error] 80-80: trailing spaces
(trailing-spaces)
[warning] 93-93: too many spaces after colon
(colons)
[error] 94-94: trailing spaces
(trailing-spaces)
[error] 107-107: trailing spaces
(trailing-spaces)
[error] 108-108: trailing spaces
(trailing-spaces)
[error] 114-114: trailing spaces
(trailing-spaces)
[error] 121-121: trailing spaces
(trailing-spaces)
[error] 125-125: trailing spaces
(trailing-spaces)
[error] 131-131: trailing spaces
(trailing-spaces)
[error] 137-137: trailing spaces
(trailing-spaces)
multinode/roles/validator_bin_copy/tasks/main.yml
[error] 107-107: trailing spaces
(trailing-spaces)
🔇 Additional comments (6)
multinode/main.yml (1)
47-60: Verify monitoring role dependencies
Please ensure that the grafana and monitoring_install roles have proper dependencies defined in their respective meta/main.yml files.
✅ Verification successful
Let me verify if these roles exist and check their structure to provide accurate guidance.
Let's check the content of these task files to understand their dependencies and requirements.
Role dependencies are not required - implementation is self-contained
After reviewing the task files, I can confirm that both roles are properly implemented and don't require explicit dependencies in meta/main.yml:
- The
grafanarole is self-contained, installing and configuring Grafana, Prometheus, and Loki with all necessary prerequisites. - The
monitoring_installrole handles node-exporter and promtail installation independently. - The execution order in the playbook is correct, as Grafana (with Prometheus and Loki) is installed before the monitoring agents.
- All required template files are referenced from the playbook directory.
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Description: Check if role dependencies are properly defined
# Check for role dependencies
for role in grafana monitoring_install; do
echo "Checking dependencies for role: $role"
if [ -f "multinode/roles/$role/meta/main.yml" ]; then
cat "multinode/roles/$role/meta/main.yml"
else
echo "Warning: meta/main.yml not found for role $role"
fi
done
# Verify if the roles are included in requirements.yml
if [ -f "requirements.yml" ]; then
echo "Checking requirements.yml for role definitions"
cat requirements.yml
fi
Length of output: 664
Script:
#!/bin/bash
# Check if the roles exist and their structure
echo "Checking role directories:"
ls -la multinode/roles/grafana/ 2>/dev/null || echo "grafana role directory not found"
echo "---"
ls -la multinode/roles/monitoring_install/ 2>/dev/null || echo "monitoring_install role directory not found"
echo -e "\nChecking for tasks files:"
find multinode/roles/ -type f -name "main.yml" | grep -E "grafana|monitoring_install"
Length of output: 730
Script:
#!/bin/bash
echo "Content of grafana/tasks/main.yml:"
cat multinode/roles/grafana/tasks/main.yml
echo -e "\n---\nContent of monitoring_install/tasks/main.yml:"
cat multinode/roles/monitoring_install/tasks/main.yml
Length of output: 8966
🧰 Tools
🪛 yamllint
[error] 51-51: trailing spaces
(trailing-spaces)
[error] 58-58: trailing spaces
(trailing-spaces)
multinode/roles/validator_bin_copy/tasks/main.yml (1)
90-91: Verify service functionality with non-root ownership.
Changing the service file ownership from root to {{ user }} might affect service operations. Ensure that:
- The service can still be managed by systemd
- The user has appropriate permissions to execute all commands in the service file
✅ Verification successful
Based on the output, I can now generate the final response:
Service file ownership change is safe and appropriate
The service file template shows that:
- The service runs as
{{ansible_user}}user already - The service only requires read access to the service file
- All critical paths (logs, daemon home) have appropriate permissions set in other tasks
The ownership change from root to the user is actually a security improvement as it follows the principle of least privilege, while maintaining full systemd functionality.
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Description: Verify service file permissions and systemd requirements
# Check if the service file template exists
fd -t f "node-service.j2$" -x cat {} \;
# Look for any ExecStart commands that might require root privileges
fd -t f "node-service.j2$" -x grep -A 5 "ExecStart" {} \;
Length of output: 299
Script:
#!/bin/bash
# Let's check the entire validator_bin_copy role for service-related files and templates
fd -t f . multinode/roles/validator_bin_copy -x cat {} \;
# Also check for any systemd unit files or templates in the repository
fd -t f -e service -e j2 . -x cat {} \;
# Search for any documentation about service configuration
rg -i "service|systemd" README.md docs/ 2>/dev/null
Length of output: 12919
multinode/roles/fullnode_bin_copy/tasks/main.yml (3)
115-116: LGTM: Proper service file ownership
Good addition of explicit owner and group for the service file. This follows security best practices.
66-72: Verify impact of metrics namespace change
Changing the metrics namespace from "cometbft" to "tendermint" could affect existing metric collection and dashboards. Please ensure:
- All Grafana dashboards are updated to use the new namespace
- Any existing metric alerts or rules are adjusted
Let's verify the namespace configuration and its usage:
#!/bin/bash
# Description: Check for namespace usage in dashboards and configurations
# Look for namespace references in dashboard files
echo "Checking dashboard files for namespace usage:"
rg -l "cometbft|tendermint" multinode/Dashboards/
# Check for any prometheus rules or alert configurations
echo "Checking prometheus configurations:"
fd -e yml -e yaml . | xargs rg "cometbft|tendermint"59-65: LGTM: Prometheus metrics enablement looks good!
The task correctly enables Prometheus metrics by modifying config.toml. This aligns with the monitoring objectives.
Let's verify the Prometheus configuration:
multinode/README.md (1)
Line range hint 1-147: Documentation improvements look good overall!
The addition of monitoring documentation significantly enhances the README. The instructions are clear, well-structured, and provide good coverage of the setup process. The suggested improvements are minor and mainly focus on formatting and readability.
🧰 Tools
🪛 LanguageTool
[duplication] ~132-~132: Possible typo: you repeated a word
Context: ... Dashboards 1. Navigate to Dashboards > Import 2. Import each dashboard from the Dashboard dir...
(ENGLISH_WORD_REPEAT_RULE)
🪛 Markdownlint
102-102: Punctuation: ':'
Trailing punctuation in heading
(MD026, no-trailing-punctuation)
110-110: null
Bare URL used
(MD034, no-bare-urls)
111-111: null
Bare URL used
(MD034, no-bare-urls)
There was a problem hiding this comment.
Actionable comments posted: 3
🧹 Outside diff range and nitpick comments (6)
multinode/roles/monitoring_install/tasks/main.yml (2)
123-132: Improve cleanup task reliabilityThe cleanup task should handle cases where files don't exist and use proper path handling.
- name: Cleanup temporary files file: path: "{{ item }}" state: absent become: true + ignore_errors: yes with_items: - - "{{ user_home }}/promtail-linux-amd64" - - "{{ user_home }}/promtail-linux-amd64.zip" - - "{{ user_home }}/node_exporter-1.8.2.linux-amd64" - - "{{ user_home }}/node_exporter-1.8.2.linux-amd64.tar.gz" + - "{{ user_home | regex_replace('/$', '') }}/promtail-linux-amd64" + - "{{ user_home | regex_replace('/$', '') }}/promtail-linux-amd64.zip" + - "{{ user_home | regex_replace('/$', '') }}/node_exporter-1.8.2.linux-amd64" + - "{{ user_home | regex_replace('/$', '') }}/node_exporter-1.8.2.linux-amd64.tar.gz"
1-133: Fix formatting issuesMultiple formatting issues were detected:
- Trailing spaces on lines 14, 19, 23, 24, 34, 44, 51, 71, 72, 76, 90, 103, 104, 110, 117, 121
- Extra blank lines at the beginning and end of the file
- Extra spaces after colons in some task definitions
Consider using an editor with whitespace trimming or running
yamllintlocally to fix these issues.🧰 Tools
🪛 yamllint (1.29.0-1)
[warning] 1-1: too many blank lines
(1 > 0) (empty-lines)
[error] 14-14: trailing spaces
(trailing-spaces)
[error] 19-19: trailing spaces
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[error] 23-23: trailing spaces
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[error] 24-24: trailing spaces
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[error] 51-51: trailing spaces
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[error] 76-76: trailing spaces
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[warning] 89-89: too many spaces after colon
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[error] 90-90: trailing spaces
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[error] 103-103: trailing spaces
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[error] 104-104: trailing spaces
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[error] 110-110: trailing spaces
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[error] 117-117: trailing spaces
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(1 > 0) (empty-lines)
multinode/roles/droplet_create/tasks/main.yml (1)
52-72: Consider optimizing monitoring node resources and configuration.Two suggestions for the monitoring node configuration:
- The current size (s-2vcpu-4gb) might be oversized for just monitoring tasks. Consider using a smaller instance type if cost optimization is important.
- The
monitoring: falseparameter disables DigitalOcean's built-in monitoring. Consider enabling it for better infrastructure visibility.- name: Create monitoring node Droplet digital_ocean_droplet: state: present name: "monitor" - size: s-2vcpu-4gb + size: s-1vcpu-2gb image: ubuntu-22-04-x64 region: "{{ region }}" ssh_keys: "{{ ssh_key_id }}" - monitoring: false + monitoring: true ipv6: falsemultinode/README.md (3)
11-11: Fix component list numberingThe numbering jumps from 4 to 11. Please fix the formatting to maintain sequential numbering.
5. Grafana monitoring +5. Grafana monitoring
42-49: Fix markdown list formattingThe monitoring stack description is good, but the markdown formatting needs to be consistent. Use asterisks (*) for all unordered lists and maintain consistent indentation.
The monitoring setup includes: - * Prometheus for collecting metrics from nodes - * Loki for aggregating logs - * Node Exporter for system metrics - * Grafana dashboards for: - - Tendermint metrics (blockchain performance, consensus, etc.) - - System metrics (CPU, memory, disk usage) - - For setup instructions, see the [Steps to setup monitoring](#steps-to-setup-monitoring) section. +* Prometheus for collecting metrics from nodes +* Loki for aggregating logs +* Node Exporter for system metrics +* Grafana dashboards for: + * Tendermint metrics (blockchain performance, consensus, etc.) + * System metrics (CPU, memory, disk usage) +* For setup instructions, see the [Steps to setup monitoring](#steps-to-setup-monitoring) section.🧰 Tools
🪛 Markdownlint (0.35.0)
47-47: Expected: asterisk; Actual: dash
Unordered list style(MD004, ul-style)
48-48: Expected: asterisk; Actual: dash
Unordered list style(MD004, ul-style)
49-49: Expected: asterisk; Actual: dash
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43-43: Expected: 0; Actual: 2
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48-48: Expected: 2; Actual: 4
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49-49: Expected: 0; Actual: 2
Unordered list indentation(MD007, ul-indent)
109-148: Add security considerations to monitoring setupWhile the setup instructions are comprehensive, consider adding security-related guidance:
- Default credential warnings
- Network security recommendations
- Access control configuration
Add a new "Security Considerations" section:
### Security Considerations * Change default Grafana credentials immediately after first login * Configure HTTPS for Grafana, Prometheus, and Loki * Set up authentication for Prometheus and Loki * Implement proper network segmentation and firewall rules * Configure role-based access control (RBAC) in Grafana🧰 Tools
🪛 LanguageTool
[duplication] ~135-~135: Possible typo: you repeated a word
Context: ... Dashboards 1. Navigate to Dashboards > Import 2. Import each dashboard from theDashboarddir...(ENGLISH_WORD_REPEAT_RULE)
🪛 Markdownlint (0.35.0)
112-112: Expected: asterisk; Actual: dash
Unordered list style(MD004, ul-style)
113-113: Expected: asterisk; Actual: dash
Unordered list style(MD004, ul-style)
114-114: Expected: asterisk; Actual: dash
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119-119: Expected: asterisk; Actual: dash
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120-120: Expected: asterisk; Actual: dash
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121-121: Expected: asterisk; Actual: dash
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126-126: Expected: asterisk; Actual: dash
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127-127: Expected: asterisk; Actual: dash
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128-128: Expected: asterisk; Actual: dash
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130-130: Expected: asterisk; Actual: dash
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131-131: Expected: asterisk; Actual: dash
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132-132: Expected: asterisk; Actual: dash
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137-137: Expected: asterisk; Actual: dash
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138-138: Expected: asterisk; Actual: dash
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139-139: Expected: asterisk; Actual: dash
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145-145: Expected: asterisk; Actual: dash
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146-146: Expected: asterisk; Actual: dash
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147-147: Expected: asterisk; Actual: dash
Unordered list style(MD004, ul-style)
📜 Review details
Configuration used: CodeRabbit UI
Review profile: CHILL
📒 Files selected for processing (6)
multinode/README.md(4 hunks)multinode/main.yml(1 hunks)multinode/roles/droplet_create/tasks/main.yml(2 hunks)multinode/roles/explorer_faucet_setup/tasks/main.yml(3 hunks)multinode/roles/grafana/tasks/main.yml(1 hunks)multinode/roles/monitoring_install/tasks/main.yml(1 hunks)
🚧 Files skipped from review as they are similar to previous changes (3)
- multinode/main.yml
- multinode/roles/explorer_faucet_setup/tasks/main.yml
- multinode/roles/grafana/tasks/main.yml
🧰 Additional context used
🪛 Markdownlint (0.35.0)
multinode/README.md
47-47: Expected: asterisk; Actual: dash
Unordered list style
(MD004, ul-style)
48-48: Expected: asterisk; Actual: dash
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(MD004, ul-style)
49-49: Expected: asterisk; Actual: dash
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43-43: Expected: 0; Actual: 2
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45-45: Expected: 0; Actual: 2
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47-47: Expected: 2; Actual: 4
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48-48: Expected: 2; Actual: 4
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49-49: Expected: 0; Actual: 2
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112-112: Expected: asterisk; Actual: dash
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119-119: Expected: asterisk; Actual: dash
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121-121: Expected: asterisk; Actual: dash
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126-126: Expected: asterisk; Actual: dash
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128-128: Expected: asterisk; Actual: dash
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147-147: Expected: asterisk; Actual: dash
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🪛 LanguageTool
multinode/README.md
[duplication] ~135-~135: Possible typo: you repeated a word
Context: ... Dashboards 1. Navigate to Dashboards > Import 2. Import each dashboard from the Dashboard dir...
(ENGLISH_WORD_REPEAT_RULE)
🪛 yamllint (1.29.0-1)
multinode/roles/droplet_create/tasks/main.yml
[error] 77-77: trailing spaces
(trailing-spaces)
multinode/roles/monitoring_install/tasks/main.yml
[warning] 1-1: too many blank lines
(1 > 0) (empty-lines)
[error] 14-14: trailing spaces
(trailing-spaces)
[error] 19-19: trailing spaces
(trailing-spaces)
[error] 23-23: trailing spaces
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[error] 24-24: trailing spaces
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[error] 34-34: trailing spaces
(trailing-spaces)
[error] 44-44: trailing spaces
(trailing-spaces)
[error] 51-51: trailing spaces
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[error] 71-71: trailing spaces
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[error] 72-72: trailing spaces
(trailing-spaces)
[error] 76-76: trailing spaces
(trailing-spaces)
[warning] 89-89: too many spaces after colon
(colons)
[error] 90-90: trailing spaces
(trailing-spaces)
[error] 103-103: trailing spaces
(trailing-spaces)
[error] 104-104: trailing spaces
(trailing-spaces)
[error] 110-110: trailing spaces
(trailing-spaces)
[error] 117-117: trailing spaces
(trailing-spaces)
[error] 121-121: trailing spaces
(trailing-spaces)
[warning] 133-133: too many blank lines
(1 > 0) (empty-lines)
🔇 Additional comments (5)
multinode/roles/monitoring_install/tasks/main.yml (1)
119-122: Remove unnecessary journald restart
The journald restart task appears unnecessary as Promtail is configured to read from specific log files and not from journald.
🧰 Tools
🪛 yamllint (1.29.0-1)
[error] 121-121: trailing spaces
(trailing-spaces)
multinode/roles/droplet_create/tasks/main.yml (2)
164-169: LGTM!
The task correctly adds the monitor to the dynamic inventory, following the same pattern as other nodes and using consistent variable naming.
74-83:
Fix trailing space and ensure [monitoring] section exists.
- Remove trailing space on line 77.
- As mentioned in previous reviews, ensure the [monitoring] section exists before appending to it.
- name: Extract IP address and ID
set_fact:
- monitor_ip: "{{ do3.data.droplet.networks.v4[0].ip_address }}"
-
+ monitor_ip: "{{ do3.data.droplet.networks.v4[0].ip_address }}"
+ - name: Ensure [monitoring] section exists in inventory.ini
+ lineinfile:
+ path: "inventory.ini"
+ line: "[monitoring]"
+ create: yes
- name: Append IP address to .inventory file under [monitoring]
lineinfile:
path: "inventory.ini"
insertafter: "^\\[monitoring\\]"
line: "monitor ansible_host={{ monitor_ip }} ansible_user={{ user }}"🧰 Tools
🪛 yamllint (1.29.0-1)
[error] 77-77: trailing spaces
(trailing-spaces)
multinode/README.md (2)
103-107: LGTM!
The addition of the [monitoring] section to the cleanup instructions is appropriate and necessary for proper playbook reruns.
111-114: Add version requirements to prerequisites
Please specify the minimum required versions for:
- Grafana
- Prometheus
- Loki
- Node Exporter
This helps users avoid compatibility issues during setup.
✅ Verification successful
Based on the shell script results, I can generate the final response as I found the specific versions being used in the monitoring setup from the configuration files.
Add version requirements to prerequisites
Please add the following minimum version requirements to the prerequisites section:
- Grafana v11.3.0
- Prometheus v2.53.2
- Loki v3.2.0
- Node Exporter v1.8.2
- Promtail v3.2.0
These versions are currently used in the deployment scripts and dashboards configuration, so specifying them will help users avoid compatibility issues.
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Check if version information exists in any of the configuration files
rg -i "version|release" --type yaml --type json
Length of output: 7715
🧰 Tools
🪛 Markdownlint (0.35.0)
112-112: Expected: asterisk; Actual: dash
Unordered list style
(MD004, ul-style)
113-113: Expected: asterisk; Actual: dash
Unordered list style
(MD004, ul-style)
114-114: Expected: asterisk; Actual: dash
Unordered list style
(MD004, ul-style)
There was a problem hiding this comment.
Actionable comments posted: 0
🧹 Outside diff range and nitpick comments (7)
ipfs/inventory.ini (2)
14-15: Consider making region and size configurable via environment variablesThe hardcoded values for
regionandsizemight limit deployment flexibility. Consider:
- Making these overridable via environment variables
- Documenting the minimum resource requirements for monitoring setup
-region=blr1 -size=s-2vcpu-4gb +region="{{ lookup('env', 'DO_REGION') | default('blr1', true) }}" +size="{{ lookup('env', 'DO_SIZE') | default('s-2vcpu-4gb', true) }}"
Line range hint
1-15: Security: Avoid using root user and consider variable organizationSeveral security and organization improvements are recommended:
- Using root user directly is a security risk. Consider using a non-root user with sudo privileges
- Sensitive variables (API tokens, SSH keys) should be moved to encrypted files
- Add comments describing the purpose and requirements of each variable
Consider restructuring the inventory as follows:
[nodes] +# Group variables for authentication and access [auth:vars] ansible_port=22 ansible_ssh_private_key_file= -user=root +user=ubuntu # Non-root user with sudo privileges ssh_file_path= digital_ocean_api_token= ssh_key_name= +# Group variables for environment setup [env:vars] user_home="{{ ansible_env.HOME }}" path="/sbin:/usr/sbin:/bin:/usr/bin:/usr/local/bin:/usr/local/go/bin:/{{ user_home }}/go/bin" go_version=1.21.6 +# Group variables for infrastructure configuration [infra:vars] region="{{ lookup('env', 'DO_REGION') | default('blr1', true) }}" size="{{ lookup('env', 'DO_SIZE') | default('s-2vcpu-4gb', true) }}" +[all:children] +auth +env +infraipfs/roles/droplet_create/tasks/main.yml (2)
Line range hint
26-26: Fix task name formattingThe task name "Create ipfs node Droplet" contains inconsistent spacing (double space between "node" and "Droplet").
-name: Create ipfs node Droplet +name: Create ipfs node Droplet
Line range hint
1-70: Consider adding playbook documentation and security improvementsA few suggestions to enhance this playbook:
- Add a YAML comment block at the beginning documenting:
- Required variables and their expected values
- The purpose and number of nodes being created
- Prerequisites and dependencies
- Consider security improvements:
- Add
no_log: trueto tasks handling sensitive data (API token, SSH keys)- Consider using Ansible Vault for the DigitalOcean API token
multinode/roles/droplet_create/tasks/main.yml (3)
52-72: Fix task name formatting and add description.The monitoring node creation task has extra spaces in its name and would benefit from a description.
-- name: Create monitoring node Droplet +- name: Create monitoring node Droplet + # Creates a dedicated droplet for monitoring services (Prometheus, Grafana, etc.)
74-77: Remove trailing whitespace.Remove the trailing whitespace on line 77.
- +🧰 Tools
🪛 yamllint (1.29.0-1)
[error] 77-77: trailing spaces
(trailing-spaces)
162-169: Remove extra blank lines but implementation LGTM.The add_host task implementation looks good and addresses previous review comments. However, there are unnecessary blank lines before the task.
- - - name: Add monitor to inventory + name: Add monitor to inventory
📜 Review details
Configuration used: CodeRabbit UI
Review profile: CHILL
📒 Files selected for processing (4)
ipfs/inventory.ini(1 hunks)ipfs/roles/droplet_create/tasks/main.yml(1 hunks)multinode/inventory.ini(2 hunks)multinode/roles/droplet_create/tasks/main.yml(4 hunks)
🚧 Files skipped from review as they are similar to previous changes (1)
- multinode/inventory.ini
🧰 Additional context used
🪛 yamllint (1.29.0-1)
multinode/roles/droplet_create/tasks/main.yml
[error] 77-77: trailing spaces
(trailing-spaces)
🔇 Additional comments (4)
ipfs/inventory.ini (1)
15-15: Verify resource requirements for monitoring stack
The selected droplet size (2 vCPU, 4GB RAM) should be verified against the resource requirements of the monitoring stack (Grafana, Prometheus, Loki).
✅ Verification successful
Let me generate additional scripts to search for monitoring stack configuration files and resource specifications.
The previous search revealed system monitoring dashboards but no specific resource requirements. Let's check for monitoring stack configurations and container specifications that might define resource requirements.
Let me check the service configuration files for any resource specifications.
The previous search revealed the monitoring stack setup but no resource specifications. Let's check the service configuration templates and other config files for any resource-related settings.
Based on the analysis of the configuration files and monitoring stack setup, I can now provide a final response:
2 vCPU, 4GB RAM droplet size is adequate for the monitoring stack
The monitoring stack configuration shows:
- Loki is configured with modest resource settings:
- 100MB cache size
- 50MB ingestion rate
- No specific high resource requirements
- Prometheus and Grafana are deployed with default configurations without special resource demands
- The services are configured for basic monitoring needs with reasonable limits
The s-2vcpu-4gb droplet size provides sufficient resources for this monitoring setup, especially considering:
- Prometheus's time-series data storage is configured with basic settings
- Loki's storage is using local filesystem with conservative cache settings
- Grafana typically has minimal resource footprint for basic dashboards
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Search for any resource requirement specifications in documentation
echo "Searching for resource specifications in documentation..."
rg -i "requirement|memory|cpu|ram|resource" README.md docs/
# Check monitoring configuration files for resource limits
echo "Checking monitoring configurations..."
fd -e yaml -e json -e yml . | xargs rg -i "memory|cpu|limit|request"
Length of output: 10709
Script:
#!/bin/bash
# Search for monitoring stack configuration files
echo "Searching for monitoring stack configurations..."
fd -e yaml -e yml -e json . | xargs rg -i "grafana|prometheus|loki"
# Search for resource limits in docker compose or kubernetes files
echo "Checking container configurations..."
fd -e yaml -e yml . | xargs rg -i "resources:|limits:|requests:|memory:|cpu:"
Length of output: 29603
Script:
#!/bin/bash
# Search for service configuration templates that might contain resource specifications
echo "Checking service configuration templates..."
fd -e j2 . | xargs cat
# Check if there are any other configuration files that might contain resource specs
echo "Checking other configuration files..."
fd -e conf -e toml . | xargs cat
Length of output: 8513
ipfs/roles/droplet_create/tasks/main.yml (1)
33-33: Verify the size variable definition
The size variable is used here but its definition or default value is not visible in this context. Ensure this variable is properly defined in your inventory, vars file, or passed during playbook execution to prevent undefined variable errors.
multinode/roles/droplet_create/tasks/main.yml (2)
33-33: LGTM! Good refactoring of droplet size.
The use of the size variable instead of hardcoded values improves configuration flexibility and maintainability.
Also applies to: 56-56, 103-103
78-82: Previous review comment is still applicable.
As mentioned in the previous review, you need to ensure the [monitoring] section exists before appending to it.
Summary by CodeRabbit
Release Notes
New Features
loki-dashboardfor log monitoring andTendermint-Dashboardfor blockchain statistics.Documentation
README.mdfile with a new section on Grafana monitoring setup and updated deployment instructions.Bug Fixes
Configuration
Service Management
Enhancements