[CI] Add stating environment

.drone.yml

@@ -57,6 +57,44 @@ steps:
 depends_on:
 - unit tests
 
+---
+kind: pipeline
+name: staging
+
+steps:
+- name: deploy
+  image: sinlead/drone-kubectl
+  settings:
+    kubernetes_server:
+      from_secret: kubectl_uri
+    kubernetes_cert:
+      from_secret: kubectl_cert
+    kubernetes_token:
+      from_secret: kubectl_token
+  environment:
+    IMAGE_TAG: ${DRONE_COMMIT_SHA:0:8}
+    NAMESPACE: beer
+    LEVEL: staging
+  commands:
+  - echo "== pre deploy ($${LEVEL}) status:"
+  - kubectl get pods --namespace=beer
+  - kubectl get deployments --namespace=beer
+  - sed "s/__LEVEL__/$${LEVEL}/g" kube/beer-deployment.yaml > kube/beer-deployment-$${LEVEL}.yaml
+  - sed "s/__NAMESPACE__/$${NAMESPACE}/g" kube/beer-deployment-$${LEVEL}.yaml > kube/beer-deployment-$${NAMESPACE}-$${LEVEL}.yaml
+  - sed "s/__IMAGE_TAG__/$${IMAGE_TAG}/g" kube/beer-deployment-$${NAMESPACE}-$${LEVEL}.yaml > kube/beer-deployment-$${NAMESPACE}-$${LEVEL}2.yaml
+  - echo "applying"
+  - kubectl apply -f kube/beer-deployment-$${NAMESPACE}-$${LEVEL}2.yaml --namespace=beer
+  - echo "== post deploy ($${LEVEL}) status:"
+  - kubectl get deployments --namespace=beer
+  - kubectl get pods --namespace=beer
+  when:
+    branch:
+      exclude:
+      - master
+
+depends_on:
+- build
+
 ---
 kind: pipeline
 name: deploy
@@ -74,22 +112,23 @@ steps:
   environment:
     IMAGE_TAG: ${DRONE_COMMIT_SHA:0:8}
     NAMESPACE: beer
+    LEVEL: prod
   commands:
-  - echo "== pre deploy status:"
+  - echo "== pre deploy ($${LEVEL}) status:"
   - kubectl get pods --namespace=beer
   - kubectl get deployments --namespace=beer
-  - sed "s/__NAMESPACE__/$${NAMESPACE}/g" kube/beer-deployment.yaml > kube/beer-deployment-prod.yaml
-  - sed "s/__IMAGE_TAG__/$${IMAGE_TAG}/g" kube/beer-deployment-prod.yaml > kube/beer-deployment-prod2.yaml
+  - sed "s/__LEVEL__/$${LEVEL}/g" kube/beer-deployment.yaml > kube/beer-deployment-$${LEVEL}.yaml
+  - sed "s/__NAMESPACE__/$${NAMESPACE}/g" kube/beer-deployment-$${LEVEL}.yaml > kube/beer-deployment-$${NAMESPACE}-$${LEVEL}.yaml
+  - sed "s/__IMAGE_TAG__/$${IMAGE_TAG}/g" kube/beer-deployment-$${NAMESPACE}-$${LEVEL}.yaml > kube/beer-deployment-$${NAMESPACE}-$${LEVEL}2.yaml
   - echo "applying"
-  - kubectl apply -f kube/beer-deployment-prod2.yaml --namespace=beer
-  - echo "== post deploy status:"
+  - kubectl apply -f kube/beer-deployment-$${NAMESPACE}-$${LEVEL}2.yaml --namespace=beer
+  - echo "== post deploy ($${LEVEL}) status:"
   - kubectl get deployments --namespace=beer
   - kubectl get pods --namespace=beer
-
-depends_on:
-- build
-
-when:
+  when:
     branch:
       include:
       - master
+
+depends_on:
+- build

kube/beer-deployment.yaml

@@ -2,17 +2,19 @@
 apiVersion: apps/v1
 kind: Deployment
 metadata:
-  name: beer-deployment
+  name: beer-deployment-__LEVEL__
   namespace: __NAMESPACE__
 spec:
   selector:
     matchLabels:
       app: beer
+      level: __LEVEL__
   replicas: 1
   template:
     metadata:
       labels:
         app: beer
+        level: __LEVEL__
     spec:
       containers:
       - name: beer

kube/beer-service.yaml

@@ -3,10 +3,11 @@ apiVersion: v1
 kind: Service
 metadata:
   name: beer
-  namespace: beer
+  namespace: __NAMESPACE__
 spec:
   selector:
     app: beer
+    level: __LEVEL__
   ports:
     - protocol: TCP
       port: 80

kube/staging/beer-ingress.yaml

@@ -0,0 +1,17 @@
+---
+apiVersion: networking.k8s.io/v1beta1
+kind: Ingress
+metadata:
+  name: beer-ingress-staging
+  namespace: beer
+  annotations:
+    nginx.ingress.kubernetes.io/rewrite-target: /
+spec:
+  rules:
+  - host: staging.beer.k3s.kleph.eu
+    http:
+      paths:
+      - path: /
+        backend:
+          serviceName: beer-staging
+          servicePort: 80

kube/staging/beer-service.yaml

@@ -0,0 +1,14 @@
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: beer-staging
+  namespace: __NAMESPACE__
+spec:
+  selector:
+    app: beer
+    level: __LEVEL__
+  ports:
+    - protocol: TCP
+      port: 80
+      targetPort: 5000