CI job for staging deploy

.github/workflows/release-develop.yml

@@ -72,3 +72,56 @@ jobs:
         env:
           DOCKER_USER: ${{ secrets.DOCKER_USERNAME }}
           DOCKER_PASSWORD: ${{ secrets.DOCKER_API_KEY }}
+
+          - name: Get the latest budibase release version
+        id: version
+        run: | 
+          release_version=$(cat lerna.json | jq -r '.version')
+          echo "RELEASE_VERSION=$release_version" >> $GITHUB_ENV
+
+      - name: Tag and release Proxy service docker image
+        run: | 
+          docker login -u $DOCKER_USER -p $DOCKER_PASSWORD
+          yarn build:docker:proxy:preprod
+          docker tag proxy-service budibase/proxy:$STAGING_TAG
+          docker push budibase/proxy:$STAGING_TAG
+        env:
+          DOCKER_USER: ${{ secrets.DOCKER_USERNAME }}
+          DOCKER_PASSWORD: ${{ secrets.DOCKER_API_KEY }}
+          STAGING_TAG: k8s-staging
+
+      - name: Pull values.yaml from budibase-infra
+        run: | 
+          curl -H "Authorization: token ${{ secrets.GH_PERSONAL_TOKEN }}" \
+          -H 'Accept: application/vnd.github.v3.raw' \
+          -o values.preprod.yaml \
+          -L https://api.github.com/repos/budibase/budibase-infra/contents/kubernetes/budibase-staging/values.yaml
+          wc -l values.staging.yaml
+
+      - name: Deploy to Staging Environment
+        uses: glopezep/helm@v1.7.1
+        with:
+          release: budibase-staging
+          namespace: budibase
+          chart: charts/budibase
+          token: ${{ github.token }}
+          helm: helm3
+          values: |
+            globals: 
+              appVersion: v${{ env.RELEASE_VERSION }}
+            ingress:
+              enabled: true
+              nginx: true
+          value-files: >-
+            [
+              "values.staging.yaml"
+            ]
+        env:
+          KUBECONFIG_FILE: '${{ secrets.STAGING_KUBECONFIG }}'
+
+      - name: Discord Webhook Action
+        uses: tsickert/discord-webhook@v4.0.0
+        with:
+          webhook-url: ${{ secrets.PROD_DEPLOY_WEBHOOK_URL }}
+          content: "Preprod Deployment Complete: ${{ env.RELEASE_VERSION }} deployed to Budibase Staging."
+          embed-title: ${{ env.RELEASE_VERSION }}