Migrate to OCI repositories

Chart Museum support was dropped and instead this action now assumes and supports that the registry is OCI compatible. See the README for the new set of input variables.

Dockerfile

@@ -1,17 +1,16 @@
-FROM flownative/base:bookworm
+FROM ubuntu:latest
 
-# For Helm releases see: https://github.com/helm/helm/releases
-ENV HELM_VERSION v3.16.1
+ENV HELM_VERSION=v3.16.1
 ENV HELM_HOME=/root/.helm
 
-# We need Git for "helm plugin install"
 RUN apt-get update \
-    && apt-get install git \
+    && apt-get install git curl -y \
     && rm -rf /var/lib/apt/lists/* \
     && rm -rf /var/log/apt \
     && rm -rf /var/log/dpkg.log
 
-RUN curl -sSL https://get.helm.sh/helm-${HELM_VERSION}-linux-amd64.tar.gz | tar xz \
+# For Helm releases see: https://github.com/helm/helm/releases
+RUN curl -sSL "https://get.helm.sh/helm-v3.16.1-linux-amd64.tar.gz" | tar xz \
     && mv linux-amd64/helm /usr/local/bin/helm \
     && rm -rf linux-amd64
 

README.md

@@ -5,3 +5,23 @@ This is the actual implementation of the
 The actual GitHub action refers to a pre-built image in its
 `Dockerfile`, so that the action image does not have to be re-built on
 every use.
+
+## Testing
+
+To test this action locally, build the image and run the container as follows:
+
+```shell
+docker buildx build --platform linux/amd64 \
+  --tag flownative/action-helm-release:dev --load .
+
+docker run --name workflow --rm \
+  -e INPUT_APP_VERSION=2.133.1+5 
+  -e INPUT_CHART_VERSION=2.133.1+5 \
+  -e INPUT_REGISTRY_HOST=dev.harbor.example.com \
+  -e INPUT_REPOSITORY_PATH=acme-charts \
+  -e INPUT_CHART_NAME=beach-my-app \
+  -e INPUT_CHARTS_FOLDER=/application/Helm \
+  -e INPUT_REPOSITORY_USER=robot#acme-charts+github-test \
+  -e INPUT_REPOSITORY_PASSWORD=… \
+  -v=$(pwd):/application docker.io/flownative/action-helm-release:dev
+```

entrypoint.sh

@@ -1,17 +1,20 @@
 #!/bin/bash
 set -ex
 
-helm plugin install https://github.com/chartmuseum/helm-push.git
-
 export INPUT_CHARTS_FOLDER=${INPUT_CHARTS_FOLDER:-.}
 
 if [ -z "${INPUT_CHART_NAME}" ]; then
   echo "chart_name is not set"
   exit 1
 fi
 
-if [ -z "${INPUT_REPOSITORY_URL}" ]; then
-  echo "repository_url is not set"
+if [ -z "${INPUT_REGISTRY_HOST}" ]; then
+  echo "registry_host is not set"
+  exit 1
+fi
+
+if [ -z "${INPUT_REPOSITORY_PATH}" ]; then
+  echo "repository_path is not set"
   exit 1
 fi
 
@@ -40,7 +43,7 @@ INPUT_APP_VERSION=$(echo "${INPUT_APP_VERSION}" | sed -e 's|refs/tags||' | sed -
 
 cd "${INPUT_CHARTS_FOLDER}"
 
-helm inspect chart "${INPUT_CHART_NAME}"
+helm inspect chart "${INPUT_CHARTS_FOLDER}"/"${INPUT_CHART_NAME}"
 helm package --app-version "${INPUT_APP_VERSION}" --version "${INPUT_CHART_VERSION}" "${INPUT_CHART_NAME}"
-echo "${INPUT_REPOSITORY_PASSWORD}" | helm registry login -u "${INPUT_REPOSITORY_USER}" --password-stdin "${INPUT_REPOSITORY_URL}"
-helm push --force "${INPUT_CHART_NAME}-${INPUT_CHART_VERSION}.tgz" "${INPUT_REPOSITORY_URL}" "${INPUT_REPOSITORY_URL}"
+echo "${INPUT_REPOSITORY_PASSWORD}" | helm registry login -u "${INPUT_REPOSITORY_USER}" --password-stdin "${INPUT_REGISTRY_HOST}"
+helm push "${INPUT_CHART_NAME}-${INPUT_CHART_VERSION}.tgz" "oci://${INPUT_REGISTRY_HOST}/${INPUT_REPOSITORY_PATH}/${INPUT_CHART_NAME}"