[public-api-server] Add k8s deployment into installer

[easyCZ]

Description

Generates a deployment config for k8s, including rolebinding and service account:

With experimental config

experimental:
  webapp:
    publicApi:
      enabled: true

generates

# apps/v1/Deployment public-api-server
apiVersion: apps/v1
kind: Deployment
metadata:
  creationTimestamp: null
  labels:
    app: gitpod
    component: public-api-server
  name: public-api-server
  namespace: default
spec:
  replicas: 1
  selector:
    matchLabels:
      app: gitpod
      component: public-api-server
  strategy:
    rollingUpdate:
      maxSurge: 1
      maxUnavailable: 0
    type: RollingUpdate
  template:
    metadata:
      creationTimestamp: null
      labels:
        app: gitpod
        component: public-api-server
      name: public-api-server
      namespace: default
    spec:
      affinity:
        nodeAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
            nodeSelectorTerms:
            - matchExpressions:
              - key: gitpod.io/workload_meta
                operator: Exists
      containers:
      - env:
        - name: GITPOD_DOMAIN
          value: dev.gitpod.io
        - name: GITPOD_INSTALLATION_LONGNAME
          value: dev.gitpod.io
        - name: GITPOD_INSTALLATION_SHORTNAME
          value: dev.gitpod.io
        - name: GITPOD_REGION
          value: local
        - name: HOST_URL
          value: https://dev.gitpod.io
        - name: KUBE_NAMESPACE
          valueFrom:
            fieldRef:
              fieldPath: metadata.namespace
        - name: KUBE_DOMAIN
          value: svc.cluster.local
        - name: LOG_LEVEL
          value: info
        image: eu.gcr.io/gitpod-core-dev/build/public-api-server:commit-01b3dc2371dea9f079043566c6f296d19d30c1c0
        imagePullPolicy: IfNotPresent
        name: public-api-server
        ports:
        - containerPort: 9000
          name: http
        readinessProbe:
          failureThreshold: 3
          httpGet:
            path: /
            port: 9000
            scheme: HTTP
          successThreshold: 1
          timeoutSeconds: 1
        resources:
          requests:
            cpu: 100m
            memory: 32Mi
        securityContext:
          privileged: false
      dnsPolicy: ClusterFirst
      enableServiceLinks: false
      restartPolicy: Always
      serviceAccountName: public-api-server
      terminationGracePeriodSeconds: 30
status: {}

Without experimental config, no public-api-server is rendered

Related Issue(s)

Depends on #9252
Part of #9229

How to test

 go run main.go render --config "./installer.conf.yaml" --use-experimental-config --debug-version-file versions.yaml > rendered.yaml

Inspect rendered.yaml it contains the config.

Release Notes

NONE

Documentation

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/hold

[easyCZ]

Largely a mirror of dashboard config.

[easyCZ]

Mirror of dashboard deployment config

[easyCZ]

/unhold