feat: publish superset helm chart (apache#14163)

* Create initial helm-release action for superset

* Add lintconf to ensure chart passes validation

* Add lint-test job

* Add apache licence headers

* Run job for master only

* Move helm-lint to separate workflow

* Helm release for master & helm dir changes only

* Dummy change to test linter

.github/workflows/superset-helm-lint.yml

@@ -0,0 +1,45 @@
+name: Lint and Test Charts
+
+on:
+  pull_request:
+    paths:
+      - 'helm/**'
+
+jobs:
+  lint-test:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      - name: Set up Helm
+        uses: azure/setup-helm@v1
+        with:
+          version: v3.5.4
+
+      - uses: actions/setup-python@v2
+        with:
+          python-version: 3.7
+
+      - name: Set up chart-testing
+        uses: helm/[email protected]
+
+      - name: Run chart-testing (list-changed)
+        id: list-changed
+        run: |
+          changed=$(ct list-changed  --print-config)
+          if [[ -n "$changed" ]]; then
+            echo "::set-output name=changed::true"
+          fi
+        env:
+          CT_CHART_DIRS: helm
+          CT_SINCE: HEAD
+
+      - name: Run chart-testing (lint)
+        run: ct lint --print-config
+        env:
+          CT_CHART_DIRS: helm
+          CT_LINT_CONF: lintconf.yaml
+          CT_SINCE: HEAD

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

@@ -0,0 +1,35 @@
+name: Release Charts
+
+on:
+  push:
+    branches:
+      - 'master'
+    paths:
+      - 'helm/**'
+
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      - name: Configure Git
+        run: |
+          git config user.name "$GITHUB_ACTOR"
+          git config user.email "[email protected]"
+
+      - name: Install Helm
+        uses: azure/setup-helm@v1
+        with:
+          version: v3.5.4
+
+      - name: Run chart-releaser
+        uses: helm/[email protected]
+        with:
+          charts_dir: helm
+        env:
+          CR_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
+          CR_RELEASE_NAME_TEMPLATE: "superset-helm-chart-{{ .Version }}"

helm/superset/values.yaml

@@ -372,3 +372,5 @@ nodeSelector: {}
 tolerations: []
 
 affinity: {}
+
+dummy: true

lintconf.yaml

@@ -0,0 +1,58 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+---
+rules:
+  braces:
+    min-spaces-inside: 0
+    max-spaces-inside: 0
+    min-spaces-inside-empty: -1
+    max-spaces-inside-empty: -1
+  brackets:
+    min-spaces-inside: -1
+    max-spaces-inside: -1
+    min-spaces-inside-empty: -1
+    max-spaces-inside-empty: -1
+  colons:
+    max-spaces-before: 0
+    max-spaces-after: 1
+  commas:
+    max-spaces-before: 0
+    min-spaces-after: 1
+    max-spaces-after: 1
+  comments:
+    require-starting-space: false
+    min-spaces-from-content: -1
+  document-end: disable
+  document-start: disable           # No --- to start a file
+  empty-lines:
+    max: 2
+    max-start: 0
+    max-end: 0
+  hyphens:
+    max-spaces-after: 1
+  indentation:
+    spaces: consistent
+    indent-sequences: whatever      # - list indentation will handle both indentation and without
+    check-multi-line-strings: false
+  key-duplicates: enable
+  line-length: disable              # Lines can be any length
+  new-line-at-end-of-file: enable
+  new-lines:
+    type: unix
+  trailing-spaces: enable
+  truthy:
+    level: warning