Microservice demo application for training purposes

1. msa-api

The api service which:

• responses to NODE_ENV environment variable with values development or docker or kubernetes which expects redis_url key to be present.
• Returns the current pinger value when / is called
• Increments the value of key by 1 every time /ping is called
• Says "its aaallive!" when /isAlive is called
• service liveness probe returns 200 OK when /probe/liveness is called
• service readiness probe returns 200 OK when /probe/readiness is called and redis is actually responding to the service

2. msa-pinger

A "shell script entry point" service which increments the pinger in the via /ping in the msa-api every 1 sec.

3. msa-poller

A "shell script entry point" service which polls the pinger in the via / in the msa-api every 1 sec.

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Running in K8s

Stay tuned form k8s-101 & k8s 102 workshops

Running the stack in docker or docker swarm ?

• docker -> docker-compose up -d
• swarm -> docker stack deploy --compose-file docker-compose.yml demostack