feat: adding air live reload command

.github/workflows/test.yaml

@@ -34,7 +34,8 @@ jobs:
       matrix:
         features:
           - clusterctl
-
+          - air
+
     steps:
       - uses: actions/checkout@v4
 

README.md

@@ -10,3 +10,11 @@ It contains development features following the [Development Containers](https://
 ### [`clusterctl`](src/clusterctl/README.md)
 
 Install the `clusterctl` CLI for the Cluster API.
+
+### [`air`](src/air/README.md)
+
+Install the `air` CLI for live-reloading Go applications.
+
+## License
+
+[MIT](/LICENSE)

src/air/README.md

@@ -0,0 +1,24 @@
+
+# clusterctl CLI (clusterctl)
+
+The clusterctl CLI tool handles the lifecycle of a Cluster API management cluster.
+
+## Example Usage
+
+```json
+"features": {
+    "ghcr.io/ZEISS/devcontainer-features/clusterctl:1": {}
+}
+```
+
+## Options
+
+| Options Id | Description | Type | Default Value |
+|-----|-----|-----|-----|
+| version | Select or enter clusterctl version to install. | string | v1.8.3 |
+
+
+
+---
+
+_Note: This file was auto-generated from the [devcontainer-feature.json](https://github.com/ZEISS/devcontainer-features/blob/main/src/clusterctl/devcontainer-feature.json).  Add additional notes to a `NOTES.md`._

src/air/devcontainer-feature.json

@@ -0,0 +1,19 @@
+{
+  "name": "Air - Live reload for Go apps",
+  "id": "air",
+  "version": "1.0.0",
+  "description": "Air - Live reload for Go apps",
+  "options": {
+    "version": {
+      "type": "string",
+      "proposals": [
+        "1.61.0"
+      ],
+      "default": "1.61.0",
+      "description": "Select or enter air version to install."
+    }
+  },
+  "installsAfter": [
+    "ghcr.io/devcontainers/features/common-utils"
+  ]
+}

src/air/install.sh

@@ -0,0 +1,62 @@
+#!/bin/sh
+set -e
+
+echo "Activating feature 'air'"
+
+# Default version
+VERSION=${VERSION:-"latest"}
+
+# Defailt install path
+BIN=${BIN:-/usr/local/bin}
+
+echo "Installing air version $VERSION"
+
+# Clean up
+rm -rf /var/lib/apt/lists/*
+
+echo "Step 1, check if user is root"
+if [ "$(id -u)" -ne 0 ]; then
+    echo -e 'Script must be run as root. Use sudo, su, or add "USER root" to your Dockerfile before running this script.'
+    exit 1
+fi
+
+echo "Step 2, check if architecture is supported"
+ARCHITECTURE="$(uname -m | sed s/aarch64/arm64/ | sed s/x86_64/amd64/)"
+if [ "${ARCHITECTURE}" != "amd64" ] && [ "${ARCHITECTURE}" != "x86_64" ] && [ "${ARCHITECTURE}" != "arm64" ] && [ "${ARCHITECTURE}" != "aarch64" ]; then
+    echo "(!) Architecture $ARCHITECTURE unsupported"
+    exit 1
+fi
+
+echo "Step 3, check the os in small case"
+OS="$(uname -s | tr '[:upper:]' '[:lower:]')"
+
+apt_get_update()
+{
+    if [ "$(find /var/lib/apt/lists/* | wc -l)" = "0" ]; then
+        echo "Running apt-get update..."
+        apt-get update -y
+    fi
+}
+
+# Checks if packages are installed and installs them if not
+check_packages() {
+    if ! dpkg -s "$@" > /dev/null 2>&1; then
+        apt_get_update
+        apt-get -y install --no-install-recommends "$@"
+    fi
+}
+
+export DEBIAN_FRONTEND=noninteractive
+
+# Install dependencies
+check_packages ca-certificates curl unzip
+
+# Install air
+
+curl -sSL "https://github.com/air-verse/air/releases/download/v${VERSION}/air_${VERSION}_${OS}_${ARCHITECTURE}" -o "${BIN}/air"
+chmod +x "${BIN}/air"
+
+# Clean up
+rm -rf /var/lib/apt/lists/*
+
+echo "Done!"

test/air/test.sh

@@ -0,0 +1,46 @@
+#!/bin/bash
+
+set -e
+
+# Clean up
+rm -rf /var/lib/apt/lists/*
+
+if [ "$(id -u)" -ne 0 ]; then
+    echo -e 'Script must be run as root to be able to installe dependencies, changing to sudo when installing.'
+fi
+
+apt_get_update() {
+    if [ "$(find /var/lib/apt/lists/* | wc -l)" = "0" ]; then
+        echo "Running apt-get update..."
+        if [ "$(id -u)" -ne 0 ]; then
+            sudo apt-get update -y
+        else
+            apt-get update -y
+        fi
+    fi
+}
+
+check_packages() {
+    if ! dpkg -s "$@" >/dev/null 2>&1; then
+        apt_get_update
+        if [ "$(id -u)" -ne 0 ]; then
+            sudo apt-get -y install --no-install-recommends "$@"
+        else
+            apt-get -y install --no-install-recommends "$@"
+        fi
+    fi
+}
+export DEBIAN_FRONTEND=noninteractive
+
+check_packages ca-certificates curl unzip 
+
+# Optional: Import test library bundled with the devcontainer CLI
+source dev-container-features-test-lib
+
+# Feature-specific tests
+# The 'check' command comes from the dev-container-features-test-lib.
+check "version" air -v
+
+# Report results
+# If any of the checks above exited with a non-zero exit code, the test will fail.
+reportResults