mqtt-kube-operator

Deploy a resource to remote Kubernetes using MQTT

Description

When this container is deployed a Kubernetes cluster, the container subscribes two MQTT topics.
When a json string is received from subscribed topic, this container create / update / delete a Resource to its own Kubernetes.

Limitations

• This program can operate only 4 resources below:

resource	apiVersion
Deployment	apps/v1
Service	v1
ConfigMap	v1
Secret	v1

• This program can operate only default namespace.

Environment Variables

This REST API accept Environment Variables like below:

Environment Variable	Summary
LOG_LEVEL	log level
MQTT_USE_TLS	set false when connecting local MQTT Broker without TLS
MQTT_TLS_CA_PATH	path to cafile used to connect MQTT Broker
MQTT_USERNAME	username used to connect MQTT Broker
MQTT_PASSWORD	password used to connect MQTT Broker
MQTT_HOST	hostname of MQTT Broker
MQTT_PORT	port of MQTT Broker
DEVICE_TYPE	device type which is registered to iotagent-ul of FIWARE
DEVICE_ID	device id which is registered to iotagent-ul of FIWARE
REPORT_INTERVAL_SEC	report interval seconds (default 1 second)
USE_DEPLOYMENT_STATE_REPORTER	set true when using deploymentStateReporter (default false)
USE_POD_STATE_REPORTER	set true when using podStateReporter (default false)
REPORT_TARGET_LABEL_KEY	the target label to gather resource status
KUBE_CONF_PATH	if set, run this program locally using kubectl's configuration

Run this program locally

1. set environment variables

   $ export KUBE_CONF_PATH=$HOME/.kube/config
   $ export MQTT_TLS_CA_PATH=/path/to/ca.crt
   $ export MQTT_USERNAME=mqtt_user
   $ export MQTT_PASSWORD=the_password_of_mqtt_user
   $ export MQTT_HOST=mqtt.example.com
   $ export MQTT_PORT=8883
   $ export DEVICE_TYPE=deployer
   $ export DEVICE_ID=delopyer_01
   $ export REPORT_INTERVAL_SEC=1
   $ export USE_DEPLOYMENT_STATE_REPORTER=true
   $ export REPORT_TARGET_LABEL_KEY=report

2. get dependencies (at the first time only)

   $ make deps

3. run program

   $ make run

Build container from source code

1. build program and build container image

   $ make VERSION=0.2.0

2. push container to DockerHub

   $ docker login
   $ make push VERSION=0.2.0

License

Apache License 2.0

Copyright

Copyright (c) 2018 TIS Inc.