adapt for openshift

[Baboulinet-33]

Add the compatibility for openshift (use the work of bitnami).
Deletes certain securityContext properties.

Issue: #110

Template:

Enabled

# Source: krakend/templates/deployment.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
  name: test-krakend
spec:
  selector:
    matchLabels:
      app.kubernetes.io/name: krakend
      app.kubernetes.io/instance: test
  template:
    metadata:
      labels:
        app.kubernetes.io/name: krakend
        app.kubernetes.io/instance: test
    spec:
      containers:
        - name: krakend
          securityContext:
            allowPrivilegeEscalation: false
            capabilities:
              add:
              - NET_BIND_SERVICE
              drop:
              - ALL
            readOnlyRootFilesystem: true
            runAsNonRoot: true
            runAsUser: 1000
          image: "docker.io/devopsfaith/krakend:2.7.0"
          imagePullPolicy: IfNotPresent
...

Disabled

# Source: krakend/templates/deployment.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
  name: test-krakend
spec:
  selector:
    matchLabels:
      app.kubernetes.io/name: krakend
      app.kubernetes.io/instance: test
  template:
    metadata:
      labels:
        app.kubernetes.io/name: krakend
        app.kubernetes.io/instance: test
    spec:
      containers:
        - name: krakend
          image: "docker.io/devopsfaith/krakend:2.7.0"
          imagePullPolicy: IfNotPresent
...

Auto

# Source: krakend/templates/deployment.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
  name: test-krakend
spec:
  selector:
    matchLabels:
      app.kubernetes.io/name: krakend
      app.kubernetes.io/instance: test
  template:
    metadata:
      labels:
        app.kubernetes.io/name: krakend
        app.kubernetes.io/instance: test
    spec:
      serviceAccountName: test-krakend
      containers:
        - name: krakend
          securityContext:
            allowPrivilegeEscalation: false
            capabilities:
              add:
              - NET_BIND_SERVICE
              drop:
              - ALL
            readOnlyRootFilesystem: true
            runAsNonRoot: true
          image: "docker.io/devopsfaith/krakend:2.7.0"
          imagePullPolicy: IfNotPresent
...

[JAORMX]

Do you work for Broadcom? I'm not sure what the copyright policy for this project is.

[Baboulinet-33]

I've changed the way I do things to just put 2 booleans that enable or disable securityContext