Manual Registration of a Registered Service

To manually register a service we need to create the RegisteredService and, if needed, a Secret containing service's secret data.

Tutorial

The tutorial is thought to be executed in Multi-Cluster setup. Tune-it as needed if running in a different Primaza setup.

1. Configure the shell

   TENANT="primaza-mytenant"
   TENANT_CLUSTER_CONTEXT="kind-main"
   SERVICE_NAMESPACE="services" # would be primaza-mytenant in Single-Namespace scenario
   

2. Create a PostgreSQL Service

   cat << EOF | kubectl apply -f - \
       --context "$TENANT_CLUSTER_CONTEXT" \
       --namespace "$SERVICE_NAMESPACE"
   apiVersion: v1
   kind: Secret
   metadata:
     name: postgresql
   stringData:
     database: postgresql-db
     username: postgresql-user
     password: postgresql-passwd
   ---
   apiVersion: apps/v1
   kind: Deployment
   metadata:
     name: postgresql
     labels:
       app: postgresql
   spec:
     replicas: 1
     selector:
       matchLabels:
         app: postgresql
     template:
       metadata:
         labels:
           app: postgresql
       spec:
         containers:
           - name: postgresql
             image: postgres:13
             imagePullPolicy: IfNotPresent
             env:
               - name: POSTGRES_DB_FILE
                 value: /secrets/database
               - name: POSTGRES_PASSWORD_FILE
                 value: /secrets/password
               - name: POSTGRES_USER_FILE
                 value: /secrets/username
               - name: PGDATA
                 value: /tmp/data
             volumeMounts:
               - name: postgresql
                 mountPath: "/secrets"
                 readOnly: true
             ports:
               - name: postgresql
                 containerPort: 5432
         volumes:
           - name: postgresql
             secret:
               secretName: postgresql
   ---
   apiVersion: v1
   kind: Service
   metadata:
     labels:
       app: postgresql
     name: postgresql
   spec:
     ports:
       - port: 5432
         protocol: TCP
         targetPort: 5432
     selector:
       app: postgresql
   EOF
   

3. Create the RegisteredService and the Service Endpoint Definition Secret for the PostgreSQL Service in Primaza's Control Plane

   cat << EOF | kubectl apply -f - \
       --context "$TENANT_CLUSTER_CONTEXT" \
       --namespace "$TENANT"
   apiVersion: v1
   kind: Secret
   metadata:
     name: postgresql
   stringData:
     username: postgresql-user
     password: postgresql-passwd
   ---
   apiVersion: primaza.io/v1alpha1
   kind: RegisteredService
   metadata:
     name: postgres
   spec:
     serviceClassIdentity:
     - name: type
       value: database
     - name: engine
       value: postgres
     - name: version
       value: "13"
     serviceEndpointDefinition:
     - name: database
       value: postgres
     - name: host
       value: postgresql.$SERVICE_NAMESPACE.svc.cluster.local
     - name: port
       value: "5432"
     - name: password
       valueFromSecret:
         name: postgresql
         key: password
     - name: username
       valueFromSecret:
         name: postgresql
         key: username
   EOF