add deployment workflow

Author: Mubangizi

.github/workflows/staging.yml

@@ -5,6 +5,7 @@ on:
   push:
     branches:
       - master
+      - deploy/gcp
 
   workflow_dispatch:
 
@@ -76,16 +77,38 @@ jobs:
 
     runs-on: ubuntu-latest
     env:
-      namespace: cranecloud-microservice
+      namespace: cranecloud
       image: cranecloud/monitoring-api
 
     steps:
       - name: Checkout code
         uses: actions/checkout@v2
 
-      - uses: azure/k8s-set-context@v1
+      # - uses: azure/k8s-set-context@v1
+      #   with:
+      #     kubeconfig: ${{ secrets.RENU_KUBECONFIG}}
+
+      - name: Login (GCP)
+        uses: google-github-actions/auth@v0
+        with:
+          credentials_json: ${{ secrets.CREDENTIALS_JSON }}
+      
+      - name: Install (Gcloud)
+        uses: google-github-actions/setup-gcloud@v1
+        with:
+          project_id: crane-cloud-274413
+          install_components: "gke-gcloud-auth-plugin"
+  
+      - name: Login (Kubernetes Cluster)
+        uses: google-github-actions/get-gke-credentials@v1
         with:
-          kubeconfig: ${{ secrets.RENU_KUBECONFIG}}
+          cluster_name: staging-cluster
+          location: us-central1-a
+          project_id: crane-cloud-274413
+  
+      # - name: Add Repo (cranecloud)
+      #   run: |
+      #     helm repo add cranecloud https://crane-cloud.github.io/helm-charts/
 
       - name: Helm Release
         run: |