[CD] Add kube deployment

.drone.yml

@@ -31,7 +31,7 @@ steps:
 - name: build image
   image: docker:stable
   environment:
-    DOCKER_HOST: tcp://docker:2375
+    DOCKER_HOST: tcp://docker
     USERNAME:
       from_secret: dockerhub_username
     PASSWORD:
@@ -51,3 +51,31 @@ services:
 
 depends_on:
   - lint
+
+---
+kind: pipeline
+name: deploy
+
+steps:
+- name: build image
+  image: docker:stable
+  environment:
+    DOCKER_HOST: tcp://docker:2375
+    KUBE_USERNAME:
+      from_secret: kubectl_username
+    KUBE_PASSWORD:
+      from_secret: kubectl_password
+    KUBE_URI:
+      from_secret: kubectl_uri
+    KUBE_CA:
+      form_secret: kubectl_ca
+  commands:
+    - kubectl
+    - cat kube/kubeconfig_template.yaml | envsubst > /.kube/config
+    - kubectl get pods
+    - kubectl get deployments
+    - kubectl get svc
+    - kubectl apply -f kube/beer-deployment.yaml
+
+depends_on:
+  - build

kube/kubeconfig_template.yaml

@@ -0,0 +1,20 @@
+apiVersion: v1
+clusters:
+- cluster:
+    certificate-authority-data: ${KUBE_CA}
+    server: ${KUBE_URI}
+  name: default
+contexts:
+- context:
+    cluster: default
+    user: default
+  name: default
+current-context: default
+kind: Config
+preferences: {}
+users:
+- name: default
+  user:
+    password: ${KUBE_PASSWORD}
+    username: ${KUBE_USERNAME}
+