add lazydocker

.github/workflows/test.yaml

@@ -14,6 +14,7 @@ jobs:
       matrix:
         features:
           - kcat-apt
+          - lazydocker-binary-release
         baseImage:
           - debian:latest
           - ubuntu:latest
@@ -34,6 +35,7 @@ jobs:
       matrix:
         features:
           - kcat-apt
+          - lazydocker-binary-release
     steps:
       - uses: actions/checkout@v4
 

src/lazydocker-binary-release/devcontainer-feature.json

@@ -0,0 +1,14 @@
+{
+    "name": "lazydocker",
+    "id": "lazydocker-binary-release",
+    "version": "1.0.0",
+    "description": "A simple terminal UI for both docker and docker-compose installed with binary release",
+    "documentationURL": "https://github.com/irfansofyana/devcontainer-features/src/lazy-docker-binary-release",
+    "options": {
+        "version": {
+            "type": "string",
+            "default": "latest",
+            "description": "The version of lazydocker to install (e.g. 0.24.1). Defaults to the latest version."
+        }
+    }
+}

src/lazydocker-binary-release/install.sh

@@ -0,0 +1,43 @@
+#!/bin/bash -i
+
+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-contrib/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 "v0.4.29"
+
+$nanolayer_location \
+    install \
+    devcontainer-feature \
+    "ghcr.io/devcontainers-contrib/features/apt-get-packages:1.0.4" \
+    --option packages='curl,ca-certificates'
+
+# Get the version from the options, defaulting to "latest"
+VERSION=${VERSION:-"latest"}
+
+if [[ "$VERSION" == "latest" ]]; then
+    LAZYDOCKER_VERSION=$(curl -s "https://api.github.com/repos/jesseduffield/lazydocker/releases/latest" | grep -Po '"tag_name": "v\K[^"]*')
+else
+    # Validate if the specified version exists
+    if curl -s "https://api.github.com/repos/jesseduffield/lazydocker/releases/tags/v$VERSION" | grep -q '"message": "Not Found"'; then
+        echo "Version $VERSION does not exist."
+        exit 1
+    fi
+    LAZYDOCKER_VERSION=$VERSION
+fi
+
+if [[ $(uname -m) == "x86_64" ]]; then
+    curl -Lo lazydocker.tar.gz "https://github.com/jesseduffield/lazydocker/releases/download/v${LAZYDOCKER_VERSION}/lazydocker_${LAZYDOCKER_VERSION}_Linux_x86_64.tar.gz"
+elif [[ $(uname -m) == "aarch64" ]]; then
+    curl -Lo lazydocker.tar.gz "https://github.com/jesseduffield/lazydocker/releases/download/v${LAZYDOCKER_VERSION}/lazydocker_${LAZYDOCKER_VERSION}_Linux_arm64.tar.gz"
+else
+    echo "Unsupported architecture"
+    exit 1
+fi
+
+tar xf lazydocker.tar.gz lazydocker
+install lazydocker /usr/local/bin

src/lazydocker-binary-release/library_scripts.sh

@@ -0,0 +1,193 @@
+#!/bin/bash -i
+
+## This is part of devcontainers-contrib script library
+# source: https://github.com/devcontainers-contrib/features
+updaterc() {
+	if cat /etc/os-release | grep "ID_LIKE=.*alpine.*\|ID=.*alpine.*" ; then
+		echo "Updating /etc/profile"
+		echo -e "$1" >>/etc/profile
+	fi
+	if [[ "$(cat /etc/bash.bashrc)" != *"$1"* ]]; then
+		echo "Updating /etc/bash.bashrc"
+		echo -e "$1" >>/etc/bash.bashrc
+	fi
+	if [ -f "/etc/zsh/zshrc" ] && [[ "$(cat /etc/zsh/zshrc)" != *"$1"* ]]; then
+		echo "Updating /etc/zsh/zshrc"
+		echo -e "$1" >>/etc/zsh/zshrc
+	fi
+}
+
+
+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-$clib_type.tgz
+
+            # clean download will minimize leftover in case a downloaderlike wget or curl need to be installed
+            clean_download https://github.com/devcontainers-contrib/cli/releases/download/$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
+}

test/lazydocker-binary-release/test.sh

@@ -0,0 +1,8 @@
+#!/bin/bash
+
+# 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 "lazydocker" lazydocker --version