app.yml

---
apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    app.kubernetes.io/component: app
    app.kubernetes.io/instance: ${FQDN}
    app.kubernetes.io/name: Rocketchat
    app.kubernetes.io/part-of: Rocketchat
  name: ${FQDN}-app
  namespace: ${NS}
spec:
  progressDeadlineSeconds: 600
  replicas: 2
  revisionHistoryLimit: 10
  selector:
    matchLabels:
      app.kubernetes.io/component: app
      app.kubernetes.io/instance: ${FQDN}
      app.kubernetes.io/name: Rocketchat
      app.kubernetes.io/part-of: Rocketchat
  strategy:
    rollingUpdate:
      maxSurge: 25%
      maxUnavailable: 25%
    type: RollingUpdate
  template:
    metadata:
      labels:
        app.kubernetes.io/component: app
        app.kubernetes.io/instance: ${FQDN}
        app.kubernetes.io/name: Rocketchat
        app.kubernetes.io/part-of: Rocketchat
    spec:
      affinity:
        nodeAffinity:
          preferredDuringSchedulingIgnoredDuringExecution:
          - weight: 20
            preference:
              matchExpressions:
              - key: stateless
                operator: In
                values:
                - "true"
        podAntiAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
          - topologyKey: kubernetes.io/hostname
            labelSelector:
              matchExpressions:
              - key: app.kubernetes.io/instance
                operator: In
                values:
                - ${FQDN}
      containers:
      - env:
        - name: TZ
          value: Europe/Berlin
        - name: INSTANCE_IP
          valueFrom:
            fieldRef:
              apiVersion: v1
              fieldPath: status.podIP
        - name: OVERWRITE_SETTING_FileUpload_S3_AWSSecretAccessKey 
          valueFrom:
            secretKeyRef:
              key: AWS_SECRET_ACCESS_KEY
              name: ${FQDN}-s3
        - name: OVERWRITE_SETTING_FileUpload_S3_AWSAccessKeyId 
          valueFrom:
            secretKeyRef: