readiness-probe-application-deployment yaml

readiness-probe-application-deployment.yaml

apiVersion: apps/v1
kind: Deployment 
metadata:
  name: rails-crud-microservice
  labels:
    app: rails-crud
spec:
  replicas: 1
  selector:
    matchLabels:
      app: rails-crud
  template:  
    metadata:
      labels: 
        app: rails-crud
    spec:
     initContainers:
        - name: init-db
          image: busybox:1.31
          command: ['sh', '-c', 'echo -e "Checking for the availability DB"; while ! nc -z postgres 5432; do sleep 1; printf "-"; done; echo -e "  >> Postgres DB Server has started";']
      
      containers:
        - name: rails-crud
          image: 123345454.dkr.ecr.us-east-1.amazonaws.com/crud:v2 # replace this image with your uploaded Image
          ports: 
            - containerPort: 3000           
          env:
            - name: POSTGRES_USER  # this value will be get from secret we created.
              valueFrom:
                secretKeyRef:
                  name: postgres-db-envs
                  key: POSTGRES_USER
            - name: POSTGRES_PASSWORD
              valueFrom:
                secretKeyRef:
                  name: postgres-db-envs
                  key: POSTGRES_PASSWORD         
          readinessProbe:
            httpGet:
              path: /login
              port: 3000
            initialDelaySeconds: 60
            periodSeconds: 10   
          livenessProbe:
            exec:
              command:
                - /bin/sh
                - -c
                - curl localhost:3000
            initialDelaySeconds: 60
            periodSeconds: 10