cleanup, add docs

README.md

@@ -3,6 +3,23 @@
 This is a [Github Action](https://docs.github.com/en/actions/sharing-automations/creating-actions/creating-a-docker-container-action)
 using Docker, with the intention to efficiently deploy to a k3s or k8s cluster using kustomize.
 
+# How to Use
+
+```yaml
+jobs:
+  deploy_staging:
+    steps:
+      - name: deploy to staging
+        id: deploy
+        uses: https://gitea.uber5.com/Uber5-Public/gha-deploy-to-k3s@v2
+        with:
+          kust_config: kustomize/overlays/testing
+        env:
+          K3S_YAML: ${{ secrets.K3S_YAML }}
+      - name: Check output of previous step (kinda dummy)
+        run: echo "The start time was ${{ steps.deploy.outputs.time }}"
+```
+
 # Open Questions
 
 - We use [kustomize](https://kustomize.io/). Is this overkill? As the complexity of deployments is not that high, usually, this may be more technical complexity than necessary. We could go back to using plain kubernetes manifests, and just have different ones for staging and prod.

entrypoint.sh

@@ -31,14 +31,14 @@ echo "K3S_YAML, deserialized:"
 cat /tmp/k3s.yaml
 cp -r ./kustomize /tmp/ # TODO: we expect the kustomize folder to be present in the root of the repository
 find /tmp/kustomize -type f -print0 | xargs -0 sed -i "s/GIT_VERSION/${GITHUB_SHA}/"
-echo "try and get nodes and version... (debugging)"
-kubectl --kubeconfig /tmp/k3s.yaml get all
-kubectl --kubeconfig /tmp/k3s.yaml version
+# echo "try and get nodes and version... (debugging)"
+# kubectl --kubeconfig /tmp/k3s.yaml get all
+# kubectl --kubeconfig /tmp/k3s.yaml version
 echo "determine kustomize version..."
 KUSTOMIZE_VERSION=$(kubectl --kubeconfig /tmp/k3s.yaml version | grep Kustomize | awk '{ print $3 }')
 echo "KUSTOMIZE_VERSION=${KUSTOMIZE_VERSION}"
-echo "run kustomize, and print output to console"
-kubectl --kubeconfig /tmp/k3s.yaml kustomize "/tmp/${KUST_CONFIG}"
+# echo "run kustomize, and print output to console"
+# kubectl --kubeconfig /tmp/k3s.yaml kustomize "/tmp/${KUST_CONFIG}"
 echo "replace faulty kustomize version (compare https://github.com/kubernetes/kubectl/issues/1495)"
 kubectl --kubeconfig /tmp/k3s.yaml kustomize "/tmp/${KUST_CONFIG}" | sed "s/kustomize-(devel)/kustomize-$KUSTOMIZE_VERSION/" >/tmp/manifests.yaml
 echo "UPDATED YAML:"