polls.yaml

# Copyright 2015 Google Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License

# This file configures the polls application . The frontend serves
# public web traffic.

# The bookshelf frontend replication controller ensures that at least 3
# instances of the bookshelf app are running on the cluster.
# For more info about Pods see:
#   https://cloud.google.com/container-engine/docs/pods/
# For more info about Deployments:
#   https://kubernetes.io/docs/user-guide/deployments/

# [START kubernetes_deployment]
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: polls
  labels:
    app: polls
spec:
  replicas: 3
  template:
    metadata:
      labels:
        app: polls
    spec:
      containers:
      - name: polls-app
        # Replace  with your project ID or use `make template`
        image: gcr.io/k8s-django-tutorial/polls
        # This setting makes nodes pull the docker image every time before
        # starting the pod. This is useful when debugging, but should be turned
        # off in production.
        #imagePullPolicy: Always
        #env:
        #    # [START cloudsql_secrets]
        #    - name: DATABASE_USER
        #      valueFrom:
        #        secretKeyRef:
        #          name: cloudsql
        #          key: username
        #    - name: DATABASE_PASSWORD
        #      valueFrom:
        #        secretKeyRef:
        #          name: cloudsql
        #          key: password
        #    # [END cloudsql_secrets]
        ports:
        - containerPort: 8080

      # [START proxy_container]
      #- image: b.gcr.io/cloudsql-docker/gce-proxy:1.05
      #  name: cloudsql-proxy
      #  command: ["/cloud_sql_proxy", "--dir=/cloudsql",
      #            "-instances=<your-cloudsql-connection-string>=tcp:5432",
      #            "-credential_file=/secrets/cloudsql/credentials.json"]
      #  volumeMounts:
      #    - name: cloudsql-oauth-credentials
      #      mountPath: /secrets/cloudsql
      #      readOnly: true
      #    - name: ssl-certs
      #      mountPath: /etc/ssl/certs
      #    - name: cloudsql
      #      mountPath: /cloudsql
      # [END proxy_container] 
      # [START volumes]
      #volumes:
      #  - name: cloudsql-oauth-credentials
      #    secret:
      #      secretName: cloudsql-oauth-credentials
      #  - name: ssl-certs
      #    hostPath:
      #      path: /etc/ssl/certs
      #  - name: cloudsql
      #    emptyDir:
      # [END volumes]        
# [END kubernetes_deployment]

---

# [START service]
# The polls service provides a load-balancing proxy over the polls app
# pods. By specifying the type as a 'LoadBalancer', Container Engine will
# create an external HTTP load balancer.
# For more information about Services see:
#   https://cloud.google.com/container-engine/docs/services/
# For more information about external HTTP load balancing see:
#   https://cloud.google.com/container-engine/docs/load-balancer
apiVersion: v1
kind: Service
metadata:
  name: polls
  labels:
    app: polls
spec:
  type: LoadBalancer
  ports:
  - port: 80
    targetPort: 8080
  selector:
    app: polls
# [END service]