Adding loki github workflow

Signed-off-by: Chris Blumentritt <[email protected]>

.github/workflows/helm-loki.yaml

@@ -0,0 +1,38 @@
+name: Helm GitHub Actions for loki
+
+on:
+  pull_request:
+    paths:
+      - helm-configs/loki/**
+      - .github/workflows/helm-loki.yaml
+jobs:
+  helm:
+    name: Helm
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - uses: azure/setup-helm@v3
+        with:
+          version: latest
+          token: "${{ secrets.GITHUB_TOKEN }}"
+        id: helm
+      - name: Kubectl Install
+        working-directory: /usr/local/bin/
+        run: |
+            if [ ! -f /usr/local/bin/kubectl ]; then
+              curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl"
+              chmod +x ./kubectl
+            fi
+      - name: Run Helm Template
+        run: |
+          ${{ steps.helm.outputs.helm-path }} repo add grafana https://grafana.github.io/helm-charts
+          ${{ steps.helm.outputs.helm-path }} repo update
+          ${{ steps.helm.outputs.helm-path }} template --values ${{ github.workspace }}/helm-configs/loki/loki-helm-minio-overrides-example.yaml \
+                                                       --namespace grafana \
+                                                        loki grafana/loki > /tmp/rendered.yaml
+      - name: Return helm Build
+        uses: actions/upload-artifact@v2
+        with:
+          name: helm-loki-artifact
+          path: /tmp/rendered.yaml