From da84b3168da99c1e0206968bf7895f6ed2263871 Mon Sep 17 00:00:00 2001
From: koralowiec <36413794+koralowiec@users.noreply.github.com>
Date: Sat, 20 Dec 2025 16:05:49 +0000
Subject: [PATCH 1/3] feat: add gh-release template

---
 .../{ => bak}/src/devcontainer-feature.json   |   0
 templates/{ => bak}/src/install.sh            |   0
 templates/{ => bak}/src/library_scripts.sh    |   0
 templates/bak/test/scenarios.json             |  16 ++
 templates/bak/test/test.sh                    |   9 +
 templates/bak/test/test_debian.sh             |   9 +
 templates/bak/test/test_specific_version.sh   |   9 +
 templates/gh-release/boilerplate.yml          |  19 ++
 .../gh-release/devcontainer-feature.json      |  18 ++
 templates/gh-release/install.sh               |  21 +++
 templates/gh-release/library_scripts.sh       | 173 ++++++++++++++++++
 templates/test/boilerplate.yml                |  13 ++
 templates/test/scenarios.json                 |   8 +-
 templates/test/test.sh                        |  13 +-
 templates/test/test_debian.sh                 |  12 +-
 templates/test/test_specific_version.sh       |  14 +-
 16 files changed, 327 insertions(+), 7 deletions(-)
 rename templates/{ => bak}/src/devcontainer-feature.json (100%)
 rename templates/{ => bak}/src/install.sh (100%)
 rename templates/{ => bak}/src/library_scripts.sh (100%)
 create mode 100644 templates/bak/test/scenarios.json
 create mode 100755 templates/bak/test/test.sh
 create mode 100755 templates/bak/test/test_debian.sh
 create mode 100755 templates/bak/test/test_specific_version.sh
 create mode 100644 templates/gh-release/boilerplate.yml
 create mode 100644 templates/gh-release/devcontainer-feature.json
 create mode 100755 templates/gh-release/install.sh
 create mode 100644 templates/gh-release/library_scripts.sh
 create mode 100644 templates/test/boilerplate.yml

diff --git a/templates/src/devcontainer-feature.json b/templates/bak/src/devcontainer-feature.json
similarity index 100%
rename from templates/src/devcontainer-feature.json
rename to templates/bak/src/devcontainer-feature.json
diff --git a/templates/src/install.sh b/templates/bak/src/install.sh
similarity index 100%
rename from templates/src/install.sh
rename to templates/bak/src/install.sh
diff --git a/templates/src/library_scripts.sh b/templates/bak/src/library_scripts.sh
similarity index 100%
rename from templates/src/library_scripts.sh
rename to templates/bak/src/library_scripts.sh
diff --git a/templates/bak/test/scenarios.json b/templates/bak/test/scenarios.json
new file mode 100644
index 000000000..48ca39c54
--- /dev/null
+++ b/templates/bak/test/scenarios.json
@@ -0,0 +1,16 @@
+{
+    "test_debian": {
+        "image": "mcr.microsoft.com/devcontainers/base:debian",
+        "features": {
+            "<id>": {}
+        }
+    },
+    "test_specific_version": {
+        "image": "mcr.microsoft.com/devcontainers/base:debian",
+        "features": {
+            "<id>": {
+                "version": "x.y.z"
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/templates/bak/test/test.sh b/templates/bak/test/test.sh
new file mode 100755
index 000000000..b2873a73c
--- /dev/null
+++ b/templates/bak/test/test.sh
@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+
+set -e
+
+source dev-container-features-test-lib
+
+check "something is installed" something --version
+
+reportResults
diff --git a/templates/bak/test/test_debian.sh b/templates/bak/test/test_debian.sh
new file mode 100755
index 000000000..b2873a73c
--- /dev/null
+++ b/templates/bak/test/test_debian.sh
@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+
+set -e
+
+source dev-container-features-test-lib
+
+check "something is installed" something --version
+
+reportResults
diff --git a/templates/bak/test/test_specific_version.sh b/templates/bak/test/test_specific_version.sh
new file mode 100755
index 000000000..e4858fa21
--- /dev/null
+++ b/templates/bak/test/test_specific_version.sh
@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+
+set -e
+
+source dev-container-features-test-lib
+
+check "something version is equal to x.y.z" sh -c "something --version | grep 'x.y.z'"
+
+reportResults
diff --git a/templates/gh-release/boilerplate.yml b/templates/gh-release/boilerplate.yml
new file mode 100644
index 000000000..16ec14aa3
--- /dev/null
+++ b/templates/gh-release/boilerplate.yml
@@ -0,0 +1,19 @@
+variables:
+  - name: ID
+    description: The unique identifier for the feature (e.g., akamai-cli).
+
+  - name: Description
+    description: A brief description of the feature.
+
+  - name: Repository
+    description: The GitHub repository in the format "owner/repo" (e.g., akamai/cli).
+
+  - name: BinaryNames
+    description: The names of the binaries to install from the release (comma-separated if multiple).
+
+  # - name: BinaryVersionCommands
+  #   description: The commands to check the version of the installed binaries (comma-separated if multiple).
+  #   default: "--version"
+
+  # - name: BinaryNonLatestVersions
+  #   description: Specific non-latest versions for test scenarios (comma-separated if multiple). For example, if 1.2.3 is the latest version, you should use 1.2.2 here.
diff --git a/templates/gh-release/devcontainer-feature.json b/templates/gh-release/devcontainer-feature.json
new file mode 100644
index 000000000..466db7e1e
--- /dev/null
+++ b/templates/gh-release/devcontainer-feature.json
@@ -0,0 +1,18 @@
+{
+    "id": "{{.ID}}",
+    "version": "1.0.0",
+    "name": "{{.ID}} (via Github Releases)",
+    "documentationURL": "http://github.com/devcontainers-extra/features/tree/main/src/{{.ID}}",
+    "description": "{{.Description}}",
+    "options": {
+        "version": {
+            "default": "latest",
+            "description": "Select the version to install.",
+            "proposals": [
+                "latest"
+            ],
+            "type": "string"
+        }
+    },
+    "installsAfter": []
+}
diff --git a/templates/gh-release/install.sh b/templates/gh-release/install.sh
new file mode 100755
index 000000000..ff1c69aeb
--- /dev/null
+++ b/templates/gh-release/install.sh
@@ -0,0 +1,21 @@
+#!/usr/bin/env bash
+
+set -e
+
+source ./library_scripts.sh
+
+# nanolayer is a cli utility which keeps container layers as small as possible
+# source code: https://github.com/devcontainers-extra/nanolayer
+# `ensure_nanolayer` is a bash function that will find any existing nanolayer installations,
+# and if missing - will download a temporary copy that automatically get deleted at the end
+# of the script
+ensure_nanolayer nanolayer_location "v0.5.6"
+
+# Example nanolayer installation via devcontainer-feature
+$nanolayer_location \
+    install \
+    devcontainer-feature \
+    "ghcr.io/devcontainers-extra/features/gh-release:1" \
+    --option repo='{{.Repository}}' --option binaryNames='{{.BinaryNames}}' --option version="$VERSION"
+
+echo 'Done!'
diff --git a/templates/gh-release/library_scripts.sh b/templates/gh-release/library_scripts.sh
new file mode 100644
index 000000000..f6d0760d7
--- /dev/null
+++ b/templates/gh-release/library_scripts.sh
@@ -0,0 +1,173 @@
+#!/usr/bin/env bash
+
+clean_download() {
+    # The purpose of this function is to download a file with minimal impact on container layer size
+    # this means if no valid downloader is found (curl or wget) then we install a downloader (currently wget) in a
+    # temporary manner, and making sure to
+    # 1. uninstall the downloader at the return of the function
+    # 2. revert back any changes to the package installer database/cache (for example apt-get lists)
+    # The above steps will minimize the leftovers being created while installing the downloader
+    # Supported distros:
+    #  debian/ubuntu/alpine
+
+    url=$1
+    output_location=$2
+    tempdir=$(mktemp -d)
+    downloader_installed=""
+
+    function _apt_get_install() {
+        tempdir=$1
+
+        # copy current state of apt list - in order to revert back later (minimize contianer layer size)
+        cp -p -R /var/lib/apt/lists $tempdir
+        apt-get update -y
+        apt-get -y install --no-install-recommends wget ca-certificates
+    }
+
+    function _apt_get_cleanup() {
+        tempdir=$1
+
+        echo "removing wget"
+        apt-get -y purge wget --auto-remove
+
+        echo "revert back apt lists"
+        rm -rf /var/lib/apt/lists/*
+        rm -r /var/lib/apt/lists && mv $tempdir/lists /var/lib/apt/lists
+    }
+
+    function _apk_install() {
+        tempdir=$1
+        # copy current state of apk cache - in order to revert back later (minimize contianer layer size)
+        cp -p -R /var/cache/apk $tempdir
+
+        apk add --no-cache wget
+    }
+
+    function _apk_cleanup() {
+        tempdir=$1
+
+        echo "removing wget"
+        apk del wget
+    }
+    # try to use either wget or curl if one of them already installer
+    if type curl >/dev/null 2>&1; then
+        downloader=curl
+    elif type wget >/dev/null 2>&1; then
+        downloader=wget
+    else
+        downloader=""
+    fi
+
+    # in case none of them is installed, install wget temporarly
+    if [ -z $downloader ]; then
+        if [ -x "/usr/bin/apt-get" ]; then
+            _apt_get_install $tempdir
+        elif [ -x "/sbin/apk" ]; then
+            _apk_install $tempdir
+        else
+            echo "distro not supported"
+            exit 1
+        fi
+        downloader="wget"
+        downloader_installed="true"
+    fi
+
+    if [ $downloader = "wget" ]; then
+        wget -q $url -O $output_location
+    else
+        curl -sfL $url -o $output_location
+    fi
+
+    # NOTE: the cleanup procedure was not implemented using `trap X RETURN` only because
+    # alpine lack bash, and RETURN is not a valid signal under sh shell
+    if ! [ -z $downloader_installed ]; then
+        if [ -x "/usr/bin/apt-get" ]; then
+            _apt_get_cleanup $tempdir
+        elif [ -x "/sbin/apk" ]; then
+            _apk_cleanup $tempdir
+        else
+            echo "distro not supported"
+            exit 1
+        fi
+    fi
+
+}
+
+ensure_nanolayer() {
+    # Ensure existance of the nanolayer cli program
+    local variable_name=$1
+
+    local required_version=$2
+    # normalize version
+    if ! [[ $required_version == v* ]]; then
+        required_version=v$required_version
+    fi
+
+    local nanolayer_location=""
+
+    # If possible - try to use an already installed nanolayer
+    if [[ -z "${NANOLAYER_FORCE_CLI_INSTALLATION}" ]]; then
+        if [[ -z "${NANOLAYER_CLI_LOCATION}" ]]; then
+            if type nanolayer >/dev/null 2>&1; then
+                echo "Found a pre-existing nanolayer in PATH"
+                nanolayer_location=nanolayer
+            fi
+        elif [ -f "${NANOLAYER_CLI_LOCATION}" ] && [ -x "${NANOLAYER_CLI_LOCATION}" ]; then
+            nanolayer_location=${NANOLAYER_CLI_LOCATION}
+            echo "Found a pre-existing nanolayer which were given in env variable: $nanolayer_location"
+        fi
+
+        # make sure its of the required version
+        if ! [[ -z "${nanolayer_location}" ]]; then
+            local current_version
+            current_version=$($nanolayer_location --version)
+            if ! [[ $current_version == v* ]]; then
+                current_version=v$current_version
+            fi
+
+            if ! [ $current_version == $required_version ]; then
+                echo "skipping usage of pre-existing nanolayer. (required version $required_version does not match existing version $current_version)"
+                nanolayer_location=""
+            fi
+        fi
+
+    fi
+
+    # If not previuse installation found, download it temporarly and delete at the end of the script
+    if [[ -z "${nanolayer_location}" ]]; then
+
+        if [ "$(uname -sm)" == "Linux x86_64" ] || [ "$(uname -sm)" == "Linux aarch64" ]; then
+            tmp_dir=$(mktemp -d -t nanolayer-XXXXXXXXXX)
+
+            clean_up() {
+                ARG=$?
+                rm -rf $tmp_dir
+                exit $ARG
+            }
+            trap clean_up EXIT
+
+            if [ -x "/sbin/apk" ]; then
+                clib_type=musl
+            else
+                clib_type=gnu
+            fi
+
+            tar_filename=nanolayer-"$(uname -m)"-unknown-linux-$clib_type.tgz
+
+            # clean download will minimize leftover in case a downloaderlike wget or curl need to be installed
+            clean_download https://github.com/devcontainers-extra/nanolayer/releases/download/$required_version/$tar_filename $tmp_dir/$tar_filename
+
+            tar xfzv $tmp_dir/$tar_filename -C "$tmp_dir"
+            chmod a+x $tmp_dir/nanolayer
+            nanolayer_location=$tmp_dir/nanolayer
+
+        else
+            echo "No binaries compiled for non-x86-linux architectures yet: $(uname -m)"
+            exit 1
+        fi
+    fi
+
+    # Expose outside the resolved location
+    declare -g ${variable_name}=$nanolayer_location
+
+}
diff --git a/templates/test/boilerplate.yml b/templates/test/boilerplate.yml
new file mode 100644
index 000000000..fe68ad94c
--- /dev/null
+++ b/templates/test/boilerplate.yml
@@ -0,0 +1,13 @@
+variables:
+  - name: ID
+    description: The unique identifier for the feature (e.g., akamai-cli).
+
+  - name: BinaryNames
+    description: The names of the binaries to install from the release (comma-separated if multiple).
+
+  - name: BinaryVersionCommands
+    description: The commands to check the version of the installed binaries (comma-separated if multiple).
+    default: "--version"
+
+  - name: BinaryNonLatestVersions
+    description: Specific non-latest versions for test scenarios (comma-separated if multiple). For example, if 1.2.3 is the latest version, you should use 1.2.2 here.
diff --git a/templates/test/scenarios.json b/templates/test/scenarios.json
index 48ca39c54..283d4b0ab 100644
--- a/templates/test/scenarios.json
+++ b/templates/test/scenarios.json
@@ -2,15 +2,15 @@
     "test_debian": {
         "image": "mcr.microsoft.com/devcontainers/base:debian",
         "features": {
-            "<id>": {}
+            "{{.ID}}": {}
         }
     },
     "test_specific_version": {
         "image": "mcr.microsoft.com/devcontainers/base:debian",
         "features": {
-            "<id>": {
-                "version": "x.y.z"
+            "{{.ID}}": {
+                "version": "{{index (splitList "," .BinaryNonLatestVersions) 0}}"
             }
         }
     }
-}
\ No newline at end of file
+}
diff --git a/templates/test/test.sh b/templates/test/test.sh
index b2873a73c..f5101fa3f 100755
--- a/templates/test/test.sh
+++ b/templates/test/test.sh
@@ -4,6 +4,17 @@ set -e
 
 source dev-container-features-test-lib
 
-check "something is installed" something --version
+{{- $binaryNames := splitList "," .BinaryNames}}
+{{- $versionCommands := splitList "," .BinaryVersionCommands}}
+{{- range $index, $binary := $binaryNames}}
+{{- $versionCmd := "--version"}}
+{{- if gt (len $versionCommands) 1}}
+{{- $versionCmd = index $versionCommands $index}}
+{{- else if eq (len $versionCommands) 1}}
+{{- $versionCmd = index $versionCommands 0}}
+{{- end}}
+
+check "{{$binary}} is installed" {{$binary}} {{$versionCmd}}
+{{- end}}
 
 reportResults
diff --git a/templates/test/test_debian.sh b/templates/test/test_debian.sh
index b2873a73c..f7780a21d 100755
--- a/templates/test/test_debian.sh
+++ b/templates/test/test_debian.sh
@@ -3,7 +3,17 @@
 set -e
 
 source dev-container-features-test-lib
+{{- $binaryNames := splitList "," .BinaryNames}}
+{{- $versionCommands := splitList "," .BinaryVersionCommands}}
+{{- range $index, $binary := $binaryNames}}
+{{- $versionCmd := "--version"}}
+{{- if gt (len $versionCommands) 1}}
+{{- $versionCmd = index $versionCommands $index}}
+{{- else if eq (len $versionCommands) 1}}
+{{- $versionCmd = index $versionCommands 0}}
+{{- end}}
 
-check "something is installed" something --version
+check "{{$binary}} is installed" {{$binary}} {{$versionCmd}}
+{{- end}}
 
 reportResults
diff --git a/templates/test/test_specific_version.sh b/templates/test/test_specific_version.sh
index e4858fa21..0108dac96 100755
--- a/templates/test/test_specific_version.sh
+++ b/templates/test/test_specific_version.sh
@@ -3,7 +3,19 @@
 set -e
 
 source dev-container-features-test-lib
+{{- $binaryNames := splitList "," .BinaryNames}}
+{{- $versionCommands := splitList "," .BinaryVersionCommands}}
+{{- $nonLatestVersions := splitList "," .BinaryNonLatestVersions}}
+{{- range $index, $binary := $binaryNames}}
+{{- $versionCmd := "--version"}}
+{{- if gt (len $versionCommands) 1}}
+{{- $versionCmd = index $versionCommands $index}}
+{{- else if eq (len $versionCommands) 1}}
+{{- $versionCmd = index $versionCommands 0}}
+{{- end}}
+{{- $nonLatestVersion := index $nonLatestVersions $index}}
 
-check "something version is equal to x.y.z" sh -c "something --version | grep 'x.y.z'"
+check "{{$binary}} version is equal to {{$nonLatestVersion}}" sh -c "{{$binary}} {{$versionCmd}} | grep '{{$nonLatestVersion}}'"
+{{- end}}
 
 reportResults

From ca2ebda4eb84de4092cdbb79faacb8f4b838baf2 Mon Sep 17 00:00:00 2001
From: koralowiec <36413794+koralowiec@users.noreply.github.com>
Date: Sat, 20 Dec 2025 16:07:08 +0000
Subject: [PATCH 2/3] ci: generate gh-release based feature with template

---
 .github/workflows/generate-gh-feature.yml | 134 ++++++++++++++++++++++
 1 file changed, 134 insertions(+)
 create mode 100644 .github/workflows/generate-gh-feature.yml

diff --git a/.github/workflows/generate-gh-feature.yml b/.github/workflows/generate-gh-feature.yml
new file mode 100644
index 000000000..1719d1db5
--- /dev/null
+++ b/.github/workflows/generate-gh-feature.yml
@@ -0,0 +1,134 @@
+name: Generate Feature from gh-release Template
+
+on:
+  workflow_dispatch:
+    inputs:
+      ID:
+        description: 'Feature identifier (e.g., akamai-cli)'
+        required: true
+        type: string
+      Description:
+        description: 'Feature description'
+        required: true
+        type: string
+      Repository:
+        description: 'GitHub repository in format "owner/repo" (e.g., akamai/cli)'
+        required: true
+        type: string
+      BinaryNames:
+        description: 'Binary names (comma-separated if multiple)'
+        required: true
+        type: string
+      BinaryVersionCommands:
+        description: 'Version check commands (comma-separated if multiple)'
+        required: false
+        type: string
+        default: '--version'
+      BinaryNonLatestVersions:
+        description: 'Non-latest versions for testing (comma-separated if multiple)'
+        required: true
+        type: string
+
+jobs:
+  generate:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v6
+        with:
+          token: ${{ secrets.ARCHIVE_TOKEN }}
+
+      - name: Check if feature already exists
+        run: |
+          if [ -d "src/${{ inputs.ID }}" ] || [ -d "test/${{ inputs.ID }}" ]; then
+            echo "❌ Feature '${{ inputs.ID }}' already exists!"
+            echo "Please use a different feature ID or remove the existing feature first."
+            exit 1
+          fi
+          echo "✅ Feature ID is available"
+
+      - name: Validate GitHub repository exists
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          if gh api repos/${{ inputs.Repository }} > /dev/null 2>&1; then
+            echo "✅ Repository '${{ inputs.Repository }}' exists and is accessible"
+          else
+            echo "⚠️  Warning: Could not verify repository '${{ inputs.Repository }}'"
+            echo "The repository might be private, not exist, or you don't have access to it."
+            echo "Continuing with feature generation..."
+          fi
+
+      - name: Download boilerplate
+        run: |
+          wget -q https://github.com/gruntwork-io/boilerplate/releases/download/v0.10.1/boilerplate_linux_amd64
+          chmod +x boilerplate_linux_amd64
+
+      - name: Create vars.yml
+        run: |
+          cat > vars.yml << 'EOF'
+          ID: ${{ inputs.ID }}
+          Description: ${{ inputs.Description }}
+          Repository: ${{ inputs.Repository }}
+          BinaryNames: ${{ inputs.BinaryNames }}
+          BinaryVersionCommands: ${{ inputs.BinaryVersionCommands }}
+          BinaryNonLatestVersions: ${{ inputs.BinaryNonLatestVersions }}
+          EOF
+          echo "📝 Created vars.yml:"
+          cat vars.yml
+
+      - name: Create branch for new feature
+        run: |
+          git config user.name "github-actions[bot]"
+          git config user.email "github-actions[bot]@users.noreply.github.com"
+          git checkout -b feature/${{ inputs.ID }}-init
+
+      - name: Generate feature files
+        run: |
+          echo "🔧 Generating feature files from templates/gh-release..."
+          ./boilerplate_linux_amd64 \
+            --template-url templates/gh-release/ \
+            --output-folder src/${{ inputs.ID }} \
+            --var-file vars.yml \
+            --non-interactive
+
+      - name: Generate test files
+        run: |
+          echo "🧪 Generating test files from templates/test..."
+          ./boilerplate_linux_amd64 \
+            --template-url templates/test/ \
+            --output-folder test/${{ inputs.ID }} \
+            --var-file vars.yml \
+            --non-interactive
+
+      - name: Commit changes
+        run: |
+          git add -A
+          git commit -m "feat(${{ inputs.ID }}): init
+
+          Generated using boilerplate templates."
+
+      - name: Push changes
+        run: git push origin feature/${{ inputs.ID }}-init
+
+      - name: Create Pull Request
+        env:
+          GH_TOKEN: ${{ secrets.ARCHIVE_TOKEN }}
+        run: |
+          gh pr create \
+            --title "feat(${{ inputs.ID }}): init" \
+            --body "## New Feature: \`${{ inputs.ID }}\`
+
+          **Description:** ${{ inputs.Description }}
+
+          **Repository:** [${{ inputs.Repository }}](https://github.com/${{ inputs.Repository }})
+
+          **Binaries:** \`${{ inputs.BinaryNames }}\`
+
+          **Version Commands:** \`${{ inputs.BinaryVersionCommands }}\`
+
+          **Test Versions:** \`${{ inputs.BinaryNonLatestVersions }}\`
+
+          ---
+
+          This PR was automatically generated using the boilerplate templates.

From f571228986cd5cf7eaa25b8c0fa0a997fc259e33 Mon Sep 17 00:00:00 2001
From: koralowiec <36413794+koralowiec@users.noreply.github.com>
Date: Sat, 20 Dec 2025 16:08:51 +0000
Subject: [PATCH 3/3] chore: remove comments from gh-release template

---
 templates/gh-release/boilerplate.yml | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/templates/gh-release/boilerplate.yml b/templates/gh-release/boilerplate.yml
index 16ec14aa3..6f1ba7a9e 100644
--- a/templates/gh-release/boilerplate.yml
+++ b/templates/gh-release/boilerplate.yml
@@ -10,10 +10,3 @@ variables:
 
   - name: BinaryNames
     description: The names of the binaries to install from the release (comma-separated if multiple).
-
-  # - name: BinaryVersionCommands
-  #   description: The commands to check the version of the installed binaries (comma-separated if multiple).
-  #   default: "--version"
-
-  # - name: BinaryNonLatestVersions
-  #   description: Specific non-latest versions for test scenarios (comma-separated if multiple). For example, if 1.2.3 is the latest version, you should use 1.2.2 here.