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grafana-agent-config.ps1
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grafana-agent-config.ps1
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#Requires -RunAsAdministrator
[CmdletBinding()]
param (
[Parameter(ValueFromPipelineByPropertyName)]
[ValidateNotNullOrEmpty()]
[string] $AgentConfig = "C:\Program Files\Grafana Agent\agent-config.yaml",
[Parameter(Mandatory = $true, ValueFromPipelineByPropertyName)]
[ValidateNotNullOrEmpty()]
[string] $StackName,
[Parameter(Mandatory = $true, ValueFromPipelineByPropertyName)]
[ValidateNotNullOrEmpty()]
[string] $GrafanaInstanceApiKey,
[Parameter(Mandatory = $true, ValueFromPipelineByPropertyName)]
[ValidateNotNullOrEmpty()]
[string] $GrafanaCloudApiKey,
[Parameter(Mandatory = $true, ValueFromPipelineByPropertyName)]
[ValidateNotNullOrEmpty()]
[int] $PrometheusId,
[Parameter(ValueFromPipelineByPropertyName)]
[ValidateNotNullOrEmpty()]
[string] $StackRegion = "us-central1",
[Parameter(ValueFromPipelineByPropertyName)]
[string] $PrometheusDefaultKeepString = "(.*)",
[Parameter(ValueFromPipelineByPropertyName)]
[string] $AdditionalReplace,
[Parameter(ValueFromPipelineByPropertyName)]
[string] $AdditionalWith,
[Parameter(ValueFromPipelineByPropertyName)]
[switch] $SkipAnalyzeMetrics,
[Parameter(ValueFromPipelineByPropertyName)]
[switch] $SkipRestartService
)
Push-Location -Path $PSScriptRoot
if (-Not $SkipAnalyzeMetrics.IsPresent) {
# Download mimirtool
$DOWLOAD_URL = "https://github.com/grafana/mimir/releases/latest/download/mimirtool-windows-amd64.exe"
$OUTPUT_FILE = ".\mimirtool-windows-amd64.exe"
Invoke-WebRequest -Uri $DOWLOAD_URL -OutFile $OUTPUT_FILE
# Get used metrics
$address = "https://$StackName.grafana.net"
& .\mimirtool-windows-amd64.exe analyze grafana --address=$address --key=$GrafanaInstanceApiKey | Out-Host
# From used metrics, get all unused metrics we can safely drop
$address = "https://prometheus-$StackRegion.grafana.net/api/prom"
& .\mimirtool-windows-amd64.exe analyze prometheus --address=$address --id=$PrometheusId --key=$GrafanaCloudApiKey --log.level=debug | Out-Host
}
if (-Not $SkipRestartService.IsPresent) {
# Stop Grafana Agent service
Stop-Service -Name "Grafana Agent" -NoWait -Force -PassThru -ErrorAction Ignore
Start-Sleep -Seconds 30
& taskkill /f /im agent-windows-amd64.exe
}
#region integrations/windows_exporter
$replace = @"
prometheus_remote_write:
"@
$with = @"
windows_exporter:
enabled: true
prometheus_remote_write:
"@
$replaceRegex = [regex]::Escape($replace) -replace '((\\ )|(\\t))+', '\s+' -replace '(\\r)?\\n', '\r?\n'
(Get-Content -Raw -Path $AgentConfig) -replace $replaceRegex, $with | Set-Content $AgentConfig
#endregion
#region integrations/prometheus_remote_write/write_relabel_configs
# Create Prometheus metrics keep string
if ($SkipAnalyzeMetrics.IsPresent) {
$keepString = $PrometheusDefaultKeepString
}
else {
$keep = (Get-Content -Path .\prometheus-metrics.json | ConvertFrom-Json -Depth 10).in_use_metric_counts.metric | Sort-Object
$keepString = ""
$keep | ForEach-Object { $keepString += "$_|" }
$keepString = $keepString -replace "\|$"
}
Write-Host "Prometheus metrics keep string: $keepString"
# Add to config
$replace = @"
url: https://prometheus-$StackRegion.grafana.net/api/prom/push
logs:
"@
$with = @"
url: https://prometheus-$StackRegion.grafana.net/api/prom/push
write_relabel_configs:
- source_labels: [__name__]
regex: $keepString
action: keep
logs:
"@
$replaceRegex = [regex]::Escape($replace) -replace '((\\ )|(\\t))+', '\s+' -replace '(\\r)?\\n', '\r?\n'
(Get-Content -Raw -Path $AgentConfig) -replace $replaceRegex, $with | Set-Content $AgentConfig
#endregion
#region logs/configs/clients/scrape_configs
$replace = @"
filename: /tmp/positions.yaml
scrape_configs:
"@
$with = @"
filename: /tmp/positions.yaml
scrape_configs:
- job_name: integrations/windows-exporter-application
windows_events:
use_incoming_timestamp: true
bookmark_path: "./bookmark-application.xml"
eventlog_name: "Application"
xpath_query: '*'
labels:
job: integrations/windows_exporter
relabel_configs:
- source_labels: ['computer']
target_label: 'agent_hostname'
pipeline_stages:
- json:
expressions:
source: source
- labels:
source:
- job_name: integrations/windows-exporter-system
windows_events:
use_incoming_timestamp: true
bookmark_path: "./bookmark-system.xml"
eventlog_name: "System"
xpath_query: '*'
labels:
job: integrations/windows_exporter
relabel_configs:
- source_labels: ['computer']
target_label: 'agent_hostname'
pipeline_stages:
- json:
expressions:
source: source
- labels:
source:
"@
$replaceRegex = [regex]::Escape($replace) -replace '((\\ )|(\\t))+', '\s+' -replace '(\\r)?\\n', '\r?\n'
(Get-Content -Raw -Path $AgentConfig) -replace $replaceRegex, $with | Set-Content $AgentConfig
#endregion
#region Additional replace
if ($AdditionalReplace -And $AdditionalWith) {
$replaceRegex = [regex]::Escape($AdditionalReplace) -replace '((\\ )|(\\t))+', '\s+' -replace '(\\r)?\\n', '\r?\n'
(Get-Content -Raw -Path $AgentConfig) -replace $replaceRegex, $AdditionalWith | Set-Content $AgentConfig
}
#endregion
if (-Not $SkipRestartService.IsPresent) {
# Re-start Grafana Agent service
Start-Service -Name "Grafana Agent" -PassThru
Get-Service "Grafana Agent"
}
Pop-Location