feat: add github action for deploying to kubernetes cluster

Author: stark-cybertech

.github/workflows/kubernetes_deploy.yml

@@ -0,0 +1,39 @@
+# This workflow should deploy meet@mensa to the chair's Rancher Kubernetes cluster every time code is pushed into main branch
+name: Deploy to Kubernetes Cluster
+
+# Currently, this workflow can only be triggered manually.
+on:
+  workflow_dispatch:
+
+jobs:
+
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+
+    # Checkout git repo
+    - name: Checkout
+      uses: actions/checkout@v4
+
+    # Use Azure's kubectl installation action
+    - name: Install Kubectl
+      uses: azure/setup-kubectl@v4
+      with:
+        version: latest
+
+    # Use Azure's helm installation action
+    - name: Install Helm
+      uses: azure/setup-helm@v4.3.0
+      with:
+        version: latest
+
+    # Copy the details of Kubeconfig to enable authentication with the Rancher cluster
+    - name: Load Kubeconfig
+      run: | # TODO: I'm unsure what the label and format for the secret containing the kubernetes token is. Will have to ask the Jan on Tuesday.
+        mkdir -p ~/.kube
+        echo "${{ secrets.KUBECONFIG }}" > ~/.kube/config
+
+    # Run helm upgrade to upgrade deployment
+    - name: Upgrade Deployment with Helm
+      run: |
+        helm upgrade --install meetatmensa ./deployment/k8s -n devoops