Helm unit testing

.github/workflows/build.yml

@@ -0,0 +1,52 @@
+name: Build
+on:
+  push:
+    branches:
+      - '*'
+  pull_request:
+    branches:
+      - '*'
+
+jobs:
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+    steps:
+
+    - name: Set up Go
+      uses: actions/setup-go@v2
+      with:
+        go-version: 1.16
+
+    - name: Deps
+      run: |
+        curl -fsSL -o get_helm.sh https://raw.githubusercontent.com/helm/helm/master/scripts/get-helm-3
+        chmod 700 get_helm.sh
+        ./get_helm.sh
+
+        wget https://github.com/instrumenta/kubeval/releases/latest/download/kubeval-linux-amd64.tar.gz
+        tar xf kubeval-linux-amd64.tar.gz
+        sudo cp kubeval /usr/local/bin
+
+        git clone https://github.com/DataDog/helm-unittest.git
+        cd helm-unittest
+        export VERSION=$(sed -n -e 's/version:[ "]*\([^"]*\).*/\1/p' plugin.yaml)
+        export LDFLAGS="-X main.version=$VERSION -extldflags '-static'"
+        echo $LDFLAGS
+        go build -o untt -ldflags "$LDFLAGS" ./main.go
+        export HELM_PLUGINS=$(helm env | grep "HELM_PLUGINS" | awk -F"=" '{print $2;}' | awk -F\" '{print $2;}')
+        export HELM_PLUGIN_DIR=$HELM_PLUGINS/helm-unittest
+        mkdir -p $HELM_PLUGIN_DIR
+        cp untt $HELM_PLUGIN_DIR
+        cp plugin.yaml $HELM_PLUGIN_DIR
+
+    - name: Check out
+      uses: actions/checkout@v1
+      with:
+        fetch-depth: 1
+
+    - name: Test
+      run: |
+        make lint
+        make kubeval
+        make test