Add workflow for connector deployment

.github/workflows/deploy-cluster.yaml

@@ -0,0 +1,91 @@
+###############################################
+##
+##    Pipeline for deploying to Kubernetes
+##    cluster.
+##
+##    Gets triggered on each completed run of
+##    the Docker build workflow.
+##
+##    Effectively deletes the pods on the
+##    cluster and pulls the latest images
+##    again.
+##
+###############################################
+
+name: Deploy to cluster
+
+on:
+  workflow_dispatch:
+    inputs:
+      version:
+        description: "Docker image tag to deploy on the network"
+        required: true
+        type: string
+      environment:
+        description: "Target environment where to fetch secrets and vars"
+        required: true
+        type: choice
+        default: "staging"
+        options:
+          - "staging"
+  workflow_run:
+    workflows:
+      - "deploy"
+    types: [completed]
+    branches:
+    - 'master'
+
+jobs:
+  deploy-internal:
+    name: Deploy on internal cluster
+    runs-on: ubuntu-latest
+    # If no input is provided, deploy to staging
+    environment: ${{ github.event.inputs.environment || 'staging' }}
+    # Deploy gets triggered only on master branch
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v2
+
+      # EKS supports only authentication via IAM roles
+      # The AWS cli tool is mandatory
+    - name: Configure AWS credentials
+      uses: aws-actions/configure-aws-credentials@v1
+      with:
+        aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
+        aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
+        aws-region: us-east-1
+
+    - name: Install AWS CLI
+      uses: unfor19/install-aws-cli-action@v1
+      with:
+        version: 2
+        verbose: false
+        arch: amd64
+        rootdir: ""
+        workdir: ""
+
+      # Make sure to have kubectl and the kubeconfig from the secrets
+    - name: Install and configure kubectl
+      run: |
+        curl https://storage.googleapis.com/kubernetes-release/release/v1.27.3/bin/linux/amd64/kubectl \
+            --progress-bar \
+            --location \
+            --remote-name
+        chmod +x kubectl
+        sudo mv kubectl /usr/local/bin/
+        echo '${{ secrets.KUBECONFIG }}' > kubeconfig.yaml
+
+      # Using "kubectl patch" updates connector versions one by one
+    - name: Update connector images
+      run: |
+        export KUBECONFIG=kubeconfig.yaml
+        pods=$(kubectl get pods -l type=connector -n timechain -o=jsonpath='{.items[*].metadata.name}')
+        echo "Update connector version to latest";
+
+        sleep 10;
+        for pod in $pods; do
+            echo "Updating $pod image to latest";
+            kubectl delete pod $pod -n timechain;
+            sleep 10;
+            # TODO: health check for pods would be super nice
+        done