apiVersion: apps/v1
kind: Deployment
metadata:
  name: session-keeper
  namespace: edu-master
  labels:
    app: edu-master-session-keeper
spec:
  replicas: 1
  selector:
    matchLabels:
      app: edu-master-session-keeper
  template:
    metadata:
      labels:
        app: edu-master-session-keeper
    spec:
      initContainers:
        - name: wait-redis
          image: redis:alpine
          command:
            - /bin/sh
            - -ec
            - |
              i=0
              until redis-cli -h redis ping | grep -q PONG; do
                i=$((i+1))
                [ "$i" -ge 300 ] && echo "TIMEOUT: redis not ready" && exit 1
                sleep 2
              done
              echo "redis is ready"
      containers:
        - name: session-keeper
          image: gcr.forust.xyz/forust/session-keeper:latest
          imagePullPolicy: Always
          envFrom:
            - secretRef:
                name: edu-master-secrets
          resources:
            requests:
              cpu: 25m
              memory: 96Mi
            limits:
              cpu: 250m
              memory: 256Mi
          readinessProbe:
            exec:
              command: ["/bin/sh", "-ec", "redis-cli -h redis EXISTS EDU_PHPSESSID | grep -q 1"]
            initialDelaySeconds: 15
            periodSeconds: 30
            timeoutSeconds: 5
            failureThreshold: 10