Added action for env-loader

tools/env-loader/action.yaml

@@ -0,0 +1,64 @@
+---
+name: Load environment values
+description: Load environment values
+
+inputs:
+  environment-name:
+    description: Name of the environment to load
+  value-set:
+    description: Name of the value set to load
+  tool-version:
+    description: Version of the env-loader tool to use
+    default: ${{ github.action_ref }}
+
+runs:
+  using: "composite"
+  steps:
+    - name: Install the tool
+      shell: bash
+      env:
+        TOOL_VERSION: ${{ inputs.tool-version || github.action_ref }}
+        INSTALL_DIR: /opt/bin
+      run: |
+        # Build the download URL
+        case "${RUNNER_OS}" in
+          Linux)    OS='linux' ;;
+          Windows)  OS='windows' ;;
+          macOS)    OS='darwin' ;;
+          *)        echo "Unsupported runner OS ${RUNNER_OS}" >&2; exit 1 ;;
+        esac
+
+        case "${RUNNER_ARCH}" in
+          X86)    ARCH='x86_64' ;;
+          X64)    ARCH='amd64' ;;
+          ARM)    ARCH='arm' ;;
+          ARM64)  ARCH='arm64' ;;
+          *)      echo "Unsupported runner architecture ${RUNNER_ARCH}" >&2; exit 1 ;;
+        esac
+
+        DOWNLOAD_URL="https://github.com/gravitational/shared-workflows/releases/download/tools/changelog/${TOOL_VERSION}/env-loader-${TOOL_VERSION}-${OS}-${ARCH}.tar.gz"
+
+        # Download the tool
+        DOWNLOAD_DIR="$(mktemp -d -t 'env-loader-' --tmpdir "${RUNNER_TEMP}")"
+        mkdir -pv "${DOWNLOAD_DIR}"
+        DOWNLOAD_PATH="${DOWNLOAD_DIR}/env-loader.tar.gz"
+        echo "Downloading env-loader ${TOOL_VERSION} for ${OS}/${ARCH} from ${DOWNLOAD_URL} to ${DOWNLOAD_PATH}..."
+        curl -fsSL -o "${DOWNLOAD_PATH}" "${DOWNLOAD_URL}"
+        echo "Download complete"
+
+        # Install the tool
+        echo "Installing to ${INSTALL_DIR}..."
+        mkdir -pv "${INSTALL_DIR}"
+        tar -xzvf "${DOWNLOAD_PATH}" -C "${INSTALL_DIR}" env-loader
+        echo "${INSTALL_DIR}" >> "${GITHUB_PATH}"
+        echo "Installation complete!"
+
+        # Cleanup
+        rm -rf "${DOWNLOAD_DIR}"
+
+    - name: Load environment values into environment variables
+      shell: bash
+      env:
+        ENV_LOADER_ENVIRONMENT: "${{ inputs.environment-name }}"
+        ENV_LOADER_VALUE_SET: "${{ inputs.value-set }}"
+      run: env-loader >> "${GITHUB_ENV}"