Provide Helm chart in Ditto repository

.github/ct.yml

@@ -0,0 +1,20 @@
+# Copyright (c) 2023 Contributors to the Eclipse Foundation
+#
+# See the NOTICE file(s) distributed with this work for additional
+# information regarding copyright ownership.
+#
+# This program and the accompanying materials are made available under the
+# terms of the Eclipse Public License 2.0 which is available at
+# http://www.eclipse.org/legal/epl-2.0
+#
+# SPDX-License-Identifier: EPL-2.0
+
+# consider helm install to be failed after 10 minutes
+helm-extra-args: --timeout 10m
+check-version-increment: true
+debug: true
+chart-dirs:
+  - deployment/helm
+chart-repos:
+  - stable=https://charts.helm.sh/stable
+  - bitnami=https://charts.bitnami.com/bitnami

.github/kubeval.sh

@@ -0,0 +1,37 @@
+#!/bin/bash
+# Copyright (c) 2023 Contributors to the Eclipse Foundation
+#
+# See the NOTICE file(s) distributed with this work for additional
+# information regarding copyright ownership.
+#
+# This program and the accompanying materials are made available under the
+# terms of the Eclipse Public License 2.0 which is available at
+# http://www.eclipse.org/legal/epl-2.0
+#
+# SPDX-License-Identifier: EPL-2.0
+
+#
+# use kubeval to validate helm generated kubernetes manifest
+#
+
+set -o errexit
+set -o pipefail
+
+CHART_DIR=deployment/helm/ditto
+KUBEVAL_VERSION="v0.16.1"
+SCHEMA_LOCATION="https://raw.githubusercontent.com/yannh/kubernetes-json-schema/master/"
+
+# install kubeval
+curl --silent --show-error --fail --location --output /tmp/kubeval.tar.gz https://github.com/instrumenta/kubeval/releases/download/"${KUBEVAL_VERSION}"/kubeval-linux-amd64.tar.gz
+sudo tar -C /usr/local/bin -xf /tmp/kubeval.tar.gz kubeval
+
+# add helm repos to resolve dependencies
+helm repo add stable https://charts.helm.sh/stable
+helm repo add bitnami https://charts.bitnami.com/bitnami
+
+# validate chart
+echo "helm dependency build..."
+helm dependency build "${CHART_DIR}"
+
+echo "kubeval(idating) ${CHART_DIR} chart..."
+helm template "${CHART_DIR}" | kubeval --strict --ignore-missing-schemas --kubernetes-version "${KUBERNETES_VERSION#v}" --schema-location "${SCHEMA_LOCATION}"

.github/workflows/helm-chart-release.yml

@@ -0,0 +1,34 @@
+# Copyright (c) 2023 Contributors to the Eclipse Foundation
+#
+# See the NOTICE file(s) distributed with this work for additional
+# information regarding copyright ownership.
+#
+# This program and the accompanying materials are made available under the
+# terms of the Eclipse Public License 2.0 which is available at
+# http://www.eclipse.org/legal/epl-2.0
+#
+# SPDX-License-Identifier: EPL-2.0
+name: Release and publish Helm chart
+
+on:
+  workflow_dispatch:
+    inputs:
+      chartVersion:
+        description: 'Helm chart version'
+        required: true
+        type: string
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Package and push Ditto Helm chart to Docker Hub
+        uses: appany/helm-oci-chart-releaser@v0.3.0
+        with:
+          repository: eclipse
+          name: ditto
+          tag: ${{ inputs.chartVersion }}
+          path: deployment/helm/ditto
+          registry: registry-1.docker.io
+          registry_username: eclipsedittobot
+          registry_password: ${{ secrets.DOCKER_HUB_TOKEN }}

.github/workflows/helm-chart.yml

@@ -0,0 +1,129 @@
+# Copyright (c) 2023 Contributors to the Eclipse Foundation
+#
+# See the NOTICE file(s) distributed with this work for additional
+# information regarding copyright ownership.
+#
+# This program and the accompanying materials are made available under the
+# terms of the Eclipse Public License 2.0 which is available at
+# http://www.eclipse.org/legal/epl-2.0
+#
+# SPDX-License-Identifier: EPL-2.0
+name: Lint and test Helm chart
+
+env:
+  CONFIG_OPTION_CHART_TESTING: "--config .github/ct.yml"
+  VERSION_CHART_TESTING: "v3.8.0"
+  VERSION_HELM: "v3.11.2"
+  VERSION_PYTHON: "3.9"
+on:
+  pull_request:
+    paths:
+      - 'deployment/helm/**'
+      - '.github/workflows/helm-chart.yml'
+      - '.github/ct.yml'
+      - '.github/kubeval.sh'
+
+jobs:
+  lint-chart:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+      - name: Set up Helm
+        uses: azure/setup-helm@v3
+        with:
+          version: ${{ env.VERSION_HELM }}
+      - uses: actions/setup-python@v4
+        with:
+          python-version: ${{ env.VERSION_PYTHON }}
+          check-latest: true
+      - name: Set up chart-testing
+        uses: helm/chart-testing-action@v2.4.0
+        with:
+          version: ${{ env.VERSION_CHART_TESTING }}
+      - name: Run chart-testing (list-changed)
+        id: list-changed
+        run: |
+          changed=$(ct list-changed ${{ env.CONFIG_OPTION_CHART_TESTING }} --target-branch ${{ github.event.repository.default_branch }})
+          if [[ -n "$changed" ]]; then
+            echo "changed=true" >> "$GITHUB_OUTPUT"
+          fi
+      - name: Run chart-testing (lint)
+        if: steps.list-changed.outputs.changed == 'true'
+        run: ct lint ${{ env.CONFIG_OPTION_CHART_TESTING }} --target-branch ${{ github.event.repository.default_branch }}
+
+  kubeval-chart:
+    runs-on: ubuntu-latest
+    needs: lint-chart
+    strategy:
+      matrix:
+        # the versions supported by kubeval are the ones for
+        # which a folder exists at
+        # https://github.com/yannh/kubernetes-json-schema/
+        k8s:
+          - v1.25.2
+          - v1.26.4
+          - v1.27.1
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Fetch history for chart testing
+        run: git fetch --prune --unshallow
+      - name: Set up Helm
+        uses: azure/setup-helm@v3
+        with:
+          version: ${{ env.VERSION_HELM }}
+      - name: Run kubeval
+        env:
+          KUBERNETES_VERSION: ${{ matrix.k8s }}
+        run: .github/kubeval.sh
+
+  install-chart:
+    name: install-chart
+    runs-on: ubuntu-latest
+    needs:
+      - lint-chart
+      - kubeval-chart
+    strategy:
+      matrix:
+        # the versions supported by chart-testing are the tags
+        # available for the docker.io/kindest/node image
+        # https://hub.docker.com/r/kindest/node/tags
+        k8s:
+          - v1.25.2
+          - v1.26.4
+          - v1.27.1
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Fetch history for chart testing
+        run: git fetch --prune --unshallow
+      - name: Set up Helm
+        uses: azure/setup-helm@v3
+        with:
+          version: ${{ env.VERSION_HELM }}
+      - uses: actions/setup-python@v4
+        with:
+          python-version: ${{ env.VERSION_PYTHON }}
+          check-latest: true
+      - name: Set up chart-testing
+        uses: helm/chart-testing-action@v2.4.0
+        with:
+          version: ${{ env.VERSION_CHART_TESTING }}
+      - name: Run chart-testing (list-changed)
+        id: list-changed
+        run: |
+          changed=$(ct list-changed ${{ env.CONFIG_OPTION_CHART_TESTING }} --target-branch ${{ github.event.repository.default_branch }})
+          if [[ -n "$changed" ]]; then
+            echo "changed=true" >> "$GITHUB_OUTPUT"
+          fi
+      - name: Create kind ${{ matrix.k8s }} cluster
+        if: steps.list-changed.outputs.changed == 'true'
+        uses: helm/kind-action@v1.4.0
+        with:
+          node_image: kindest/node:${{ matrix.k8s }}
+      - name: Run chart-testing (install)
+        if: steps.list-changed.outputs.changed == 'true'
+        run: ct install ${{ env.CONFIG_OPTION_CHART_TESTING }} --target-branch ${{ github.event.repository.default_branch }}

.github/workflows/license-check.yml

@@ -29,7 +29,7 @@ jobs:
       - name: Ensure license year for added files is the file's creation year
         shell: bash
         run: |
-          included_file_endings=".*\.(java|xml|yml)"
+          included_file_endings=".*\.(java|xml|yml|yaml)"
           current_year=$(date +'%Y')
           missing_counter=0
           for file in ${{ steps.the-files.outputs.added }}; do

.github/workflows/maven.yml

@@ -18,6 +18,13 @@ on:
 
   # Run build for any PR
   pull_request:
+    paths-ignore:
+      - 'README.md'
+      - 'RELEASE.md'
+      - 'CONTRIBUTING.md'
+      - 'SECURITY.md'
+      - 'deployment/**'
+      - 'documentation/**'
 
 jobs:
   build:

deployment/docker/nginx.conf

@@ -1,6 +1,8 @@
-worker_processes 1;
+worker_processes auto;
 
-events {worker_connections 1024;}
+events {
+  worker_connections 1024;
+}
 
 http {
   include /etc/nginx/mime.types;

deployment/docker/sandbox/nginx.conf

@@ -1,6 +1,8 @@
-worker_processes 1;
+worker_processes auto;
 
-events {worker_connections 1024;}
+events {
+  worker_connections 1024;
+}
 
 http {
   charset utf-8;

deployment/helm/README.md

@@ -1,21 +1,20 @@
 # Eclipse Ditto :: Helm
 
-The Ditto Helm chart is managed at the [Eclipse IoT Packages](https://github.com/eclipse/packages/tree/master/charts/ditto) project.
+The official Ditto Helm chart is managed here, in folder [ditto](ditto/).  
+It is deployed as "OCI artifact" to Docker Hub at: https://hub.docker.com/r/eclipse/ditto
 
 ## Install Ditto via Helm Chart
 
 To install the chart with the release name eclipse-ditto, run the following commands:
 
 ```shell script
-helm repo add eclipse-iot https://www.eclipse.org/packages/charts/
-helm repo update
-helm install eclipse-ditto eclipse-iot/ditto
+helm install -n ditto my-ditto oci://registry-1.docker.io/eclipse/ditto --version <version> --wait
 ```
 
 # Uninstall the Helm Chart
 
-To uninstall/delete the eclipse-ditto deployment:
+To uninstall/delete the `my-ditto` deployment:
 
 ```shell script
-helm delete eclipse-ditto
+helm uninstall my-ditto
 ```

deployment/helm/ditto/.gitignore

@@ -0,0 +1,2 @@
+charts/
+Chart.lock

deployment/helm/ditto/.helmignore

@@ -0,0 +1,19 @@
+.DS_Store
+# Common VCS dirs
+.git/
+.gitignore
+.bzr/
+.bzrignore
+.hg/
+.hgignore
+.svn/
+# Common backup files
+*.swp
+*.bak
+*.tmp
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj
+.vscode/

deployment/helm/ditto/Chart.yaml

@@ -0,0 +1,36 @@
+# Copyright (c) 2023 Contributors to the Eclipse Foundation
+#
+# See the NOTICE file(s) distributed with this work for additional
+# information regarding copyright ownership.
+#
+# This program and the accompanying materials are made available under the
+# terms of the Eclipse Public License 2.0 which is available at
+# http://www.eclipse.org/legal/epl-2.0
+#
+# SPDX-License-Identifier: EPL-2.0
+---
+apiVersion: v2
+name: ditto
+description: |
+  Eclipse Ditto™ is a technology in the IoT implementing a software pattern called “digital twins”.
+  A digital twin is a virtual, cloud based, representation of his real world counterpart
+  (real world “Things”, e.g. devices like sensors, smart heating, connected cars, smart grids, EV charging stations etc).
+type: application
+version: 0.0.1  # chart version is set by release-job
+appVersion: 3.2.1
+keywords:
+  - iot-chart
+  - digital-twin
+  - IoT
+home: https://www.eclipse.org/ditto
+sources:
+  - https://github.com/eclipse-ditto/ditto
+icon: https://www.eclipse.org/ditto/images/ditto.svg
+maintainers:
+  - name: thjaeckle
+    email: thomas.jaeckle@beyonnex.io
+dependencies:
+  - name: mongodb
+    repository: https://charts.bitnami.com/bitnami
+    version: ^12.x
+    condition: mongodb.enabled