I'm new in Kubernetes and helm-charts, and trying to make Keycloak save data in Postgres and not in H2(as he do it by default). Postgres will be created by separate helm chart. First I creating Postgres by command:

helm install --name=postgres-keycloak stable/postgresql

Then I look at new Postgres service "Internal endpoints" parameter. And trying to add this parameters to helm-chart of Keycloak. Here is values.yaml part:

Service:
  Name: keycloak-new
  Port: 8080
  Type: ClusterIP
  postgresAddr: postgres-keycloak-postgresql
  postgresPort: 5432

Then in templates folder I add to service.yaml:

env:
 - name: POSTGRES_PORT_5432_TCP_ADDR
   value: "{{ .Values.Service.postgresAddr }}"
 - name: POSTGRES_PORT_5432_TCP_PORT
   value: "{{ .Values.Service.postgresPort }}"

Then I create keyclaok package by "helm package keycloak" command, and install:

helm install --debug  --name=keycloak-new keycloak-0.1.0.tgz

It fails with error:

[debug] Created tunnel using local port: '49927'
[debug] SERVER: "localhost:49927"
[debug] Original chart version: ""
[debug] CHART PATH: /Users/user/helm-charts/keycloak-0.1.0.tgz
Error: error validating "": error validating data: found invalid field env for v1.ServiceSpec

Who knows what I did wrong? Or what I miss?