OPSEXP-1357 Add helm-install action

.github/actions/helm-install/action.yml

@@ -0,0 +1,32 @@
+name: "Helm cli install"
+description: "Install the helm CLI"
+inputs:
+  helm-version:
+    description: The helm version to install
+    default: "3.8.1"
+    required: true
+  linux-bin-path:
+    description: Where to put the helm binary
+    default: /usr/local/bin/
+    required: true
+  win-bin-path:
+    description: Where to put the helm binary
+    default: $HOME/bin/
+    required: true
+runs:
+  using: "composite"
+  steps:
+    - name: Install helm cli
+      shell: bash
+      run: |
+        if [ "$RUNNER_OS" == "Windows" ]; then
+          curl -fsSLo helm.zip https://get.helm.sh/helm-v${{ inputs.helm-version }}-windows-amd64.zip
+          unzip -o helm.zip windows-amd64/helm.exe && rm helm.zip && mv windows-amd64/helm.exe "${{ inputs.win-bin-path }}" && rmdir windows-amd64
+        elif [ "$RUNNER_OS" == "Linux" ]; then
+          curl -fsSL https://get.helm.sh/helm-v${{ inputs.helm-version }}-$(uname | tr '[:upper:]' '[:lower:]')-amd64.tar.gz | tar xz --strip=1 -C "${{ inputs.linux-bin-path }}" $(uname | tr '[:upper:]' '[:lower:]')-amd64/helm
+        else
+          echo "$RUNNER_OS not supported"
+          exit 1
+        fi
+
+        echo helm $(helm version --client --short)

.github/workflows/test.yml

@@ -17,6 +17,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v1
+      - uses: ./.github/actions/helm-install
       - uses: ./.github/actions/setup-helm-docs
       - uses: ./.github/actions/setup-jx-release-version
       - uses: ./.github/actions/setup-rancher-cli