The following parameters are used to configuration the plugin's behavior:

• token - base64 encoded kubernetes token (required)
• ca - base64 encoded kubernetes certificate authority (required)
• server - kubernetes api server (default https://kubernetes.default.svc.cluster.local:443)
• file - path to kubernetes template file, default kubernetes.yaml
• debug - make plugin more verbose
• context - dictionary of additional template variables.

Plugin uses features of jinja2 template engine.

Here is a list of builtin drone template variables:

• {{ build.created }}
• {{ build.event }}
• {{ build.link }}
• {{ build.number }}
• {{ build.started }}
• {{ build.status }}
• {{ build.tag }}
• {{ commit.author }}
• {{ commit.branch }}
• {{ commit.message }}
• {{ commit.ref }}
• {{ commit.sha }}
• {{ job.started }}
• {{ repo.name }}
• {{ repo.owner }}

The following is a sample drone-kubernetes configuration in your .drone.yml file:

pipeline:
  deploy:
    image: dgksu/drone-kubernetes
    # specify token and certificate authority as base 64 encoded strings:
    # cat ca.crt | base64 -w 0
    token: AAABBBBCCC
    ca: AAABBBBCCC
    # or use secrets:
    secrets:
      - source: kubernetes_ca
        target: plugin_ca
      - source: kubernetes_token
        target: plugin_token
    server: https://cluster1.example.com:443
    file: deployment.yaml 
    debug: true 
    context:
      replicas: 3
      host: example.com
      repository: us.gcr.io/example
      namespace: dev

Sample kubernetes template

apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: frontend-{{ build.tag }}
  namespace: {{ namespace }}
  labels:
    build.number: "{{ build.number }}"
    build.commit: "{{ build.commit }}"
    build.author: "{{ build.author }}"
    host: {{ build.tag }}.frontend.{{ host }}
spec:
  replicas: {{ replicas|default(1) }}
  strategy:
    type: Recreate
  template:
    metadata:
      labels:
        app: frontend-{{ build.tag }}
        build.number: "{{ build.number }}"
        build.commit: "{{ build.commit }}"
        build.author: "{{ build.author }}"
        host: {{ build.tag }}.frontend.{{ host }}
    spec:
      containers:
      - name: nginx
        image: nginx:alpine
        ports:
        - containerPort: 80
        volumeMounts:
        - name: public
          mountPath: "/usr/share/nginx/html"

      initContainers:
      - name: frontend
        image: {{ repo }}/frontend:{{ build.tag }}
        command: ["/bin/sh", "-c"]
        args: ["cp -r /app/public /public/app"]
        volumeMounts:
        - name: public
          mountPath: "/public"

      volumes:
      - name: public
        emptyDir: {}
---
apiVersion: v1
kind: Service
metadata:
  name: frontend-{{ build.tag }}
  namespace: {{ namespace }}
  labels:
    build.number: "{{ build.number }}"
    build.commit: "{{ build.commit }}"
    build.author: "{{ build.author }}"
    host: {{ build.tag }}-frontend.{{ host }}
spec:
  selector:
    app: frontend-{{ build.tag }}
  ports:
  - name: "80"
    port: 80
    targetPort: 80
---
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  namespace: {{ namespace }}
  name: frontend-{{ build.tag }}
  annotations:
    kubernetes.io/ingress.class: "traefik"
  labels:
    build.number: "{{ build.number }}"
    build.commit: "{{ build.commit }}"
    build.author: "{{ build.author }}"
    host: {{ build.tag }}.frontend.{{ host }}

spec:
  rules:
    - host: {{ build.tag }}.frontend.{{ host }}
      http:
        paths:
          - backend:
              serviceName: frontend-{{ build.tag }}
              servicePort: 80

License

drone-kubernetes is licensed under the Apache License. A copy is included in this repository.