feat: chart testing and docs improvements

.github/configs/ct.yaml

@@ -0,0 +1,10 @@
+remote: origin
+target-branch: master
+chart-dirs:
+  - charts
+helm-extra-args: "--timeout 600s"  
+validate-chart-schema: false
+validate-maintainers: false
+validate-yaml: true
+exclude-deprecated: true
+check-version-increment: false

.github/configs/lintconf.yaml

@@ -0,0 +1,43 @@
+
+---
+rules:
+  braces:
+    min-spaces-inside: 0
+    max-spaces-inside: 0
+    min-spaces-inside-empty: -1
+    max-spaces-inside-empty: -1
+  brackets:
+    min-spaces-inside: 0
+    max-spaces-inside: 0
+    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: true
+    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

.github/workflows/helm.yml

@@ -12,11 +12,42 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
       - uses: azure/setup-helm@v1
         with:
           version: 3.3.4
       - name: Linting Chart
         run: helm lint ./charts/capsule
+      - name: Setup Chart Linting
+        id: lint
+        uses: helm/chart-testing-action@v2.3.0
+      - name: Run chart-testing (list-changed)
+        id: list-changed
+        run: |
+          changed=$(ct list-changed --config ./.github/configs/ct.yaml)
+          if [[ -n "$changed" ]]; then
+            echo "::set-output name=changed::true"
+          fi
+      - name: Run chart-testing (lint)
+        run: ct lint --debug --config ./.github/configs/ct.yaml --lint-conf ./.github/configs/lintconf.yaml
+      # Create KIND Cluster
+      - name: Create kind cluster
+        uses: helm/kind-action@v1.2.0
+        if: steps.list-changed.outputs.changed == 'true'
+      # Install Required Operators/CRDs
+      - name: Prepare Cluster Operators/CRDs
+        run: |
+          # Cert-Manager CRDs
+          kubectl create -f https://github.com/cert-manager/cert-manager/releases/download/v1.9.1/cert-manager.crds.yaml
+          
+          # Prometheus CRDs
+          kubectl create -f https://github.com/prometheus-operator/prometheus-operator/releases/download/v0.58.0/bundle.yaml
+        if: steps.list-changed.outputs.changed == 'true'
+      # Install Charts
+      - name: Run chart-testing (install)
+        run: ct install --debug --config ./.github/configs/ct.yaml
+        if: steps.list-changed.outputs.changed == 'true'
   release:
     if: startsWith(github.ref, 'refs/tags/helm-v')
     runs-on: ubuntu-latest