infra/docker/jenkins/files/install-plugins.sh

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#!/bin/bash -eu
# Resolve dependencies and download plugins given on the command line
#
# FROM jenkins
# RUN install-plugins.sh docker-slaves github-branch-source
#
# Environment variables:
# REF: directory with preinstalled plugins. Default: /usr/share/jenkins/ref/plugins
# JENKINS_WAR: full path to the jenkins.war. Default: /usr/share/jenkins/jenkins.war
# JENKINS_UC: url of the Update Center. Default: ""
# JENKINS_UC_EXPERIMENTAL: url of the Experimental Update Center for experimental versions of plugins. Default: ""
# JENKINS_INCREMENTALS_REPO_MIRROR: url of the incrementals repo mirror. Default: ""
# JENKINS_UC_DOWNLOAD: download url of the Update Center. Default: JENKINS_UC/download
# CURL_OPTIONS When downloading the plugins with curl. Curl options. Default: -sSfL
# CURL_CONNECTION_TIMEOUT When downloading the plugins with curl. <seconds> Maximum time allowed for connection. Default: 20
# CURL_RETRY When downloading the plugins with curl. Retry request if transient problems occur. Default: 3
# CURL_RETRY_DELAY When downloading the plugins with curl. <seconds> Wait time between retries. Default: 0
# CURL_RETRY_MAX_TIME When downloading the plugins with curl. <seconds> Retry only within this period. Default: 60
set -o pipefail
echo "WARN: install-plugins.sh is deprecated, please switch to jenkins-plugin-cli"
JENKINS_WAR=${JENKINS_WAR:-/usr/share/jenkins/jenkins.war}
. /usr/local/bin/jenkins-support
REF_DIR="${REF}/plugins"
FAILED="$REF_DIR/failed-plugins.txt"
getLockFile() {
printf '%s' "$REF_DIR/${1}.lock"
}
getArchiveFilename() {
printf '%s' "$REF_DIR/${1}.jpi"
}
download() {
local plugin originalPlugin version lock ignoreLockFile url
plugin="$1"
version="${2:-latest}"
ignoreLockFile="${3:-}"
url="${4:-}"
lock="$(getLockFile "$plugin")"
if [[ $ignoreLockFile ]] || mkdir "$lock" &>/dev/null; then
if ! doDownload "$plugin" "$version" "$url"; then
# some plugin don't follow the rules about artifact ID
# typically: docker-plugin
originalPlugin="$plugin"
plugin="${plugin}-plugin"
if ! doDownload "$plugin" "$version" "$url"; then
echo "Failed to download plugin: $originalPlugin or $plugin" >&2
echo "Not downloaded: ${originalPlugin}" >> "$FAILED"
return 1
fi
fi
if ! checkIntegrity "$plugin"; then
echo "Downloaded file is not a valid ZIP: $(getArchiveFilename "$plugin")" >&2
echo "Download integrity: ${plugin}" >> "$FAILED"
return 1
fi
resolveDependencies "$plugin"
fi
}
doDownload() {
local plugin version url jpi
plugin="$1"
version="$2"
url="$3"
jpi="$(getArchiveFilename "$plugin")"
# If plugin already exists and is the same version do not download
if test -f "$jpi" && unzip -p "$jpi" META-INF/MANIFEST.MF | tr -d '\r' | grep "^Plugin-Version: ${version}$" > /dev/null; then
echo "Using provided plugin: $plugin"
return 0
fi
if [[ -n $url ]] ; then
echo "Will use url=$url"
elif [[ "$version" == "latest" && -n "$JENKINS_UC_LATEST" ]]; then
# If version-specific Update Center is available, which is the case for LTS versions,
# use it to resolve latest versions.
url="$JENKINS_UC_LATEST/latest/${plugin}.hpi"
elif [[ "$version" == "experimental" && -n "$JENKINS_UC_EXPERIMENTAL" ]]; then
# Download from the experimental update center
url="$JENKINS_UC_EXPERIMENTAL/latest/${plugin}.hpi"
elif [[ "$version" == incrementals* ]] ; then
# Download from Incrementals repo: https://jenkins.io/blog/2018/05/15/incremental-deployment/
# Example URL: https://repo.jenkins-ci.org/incrementals/org/jenkins-ci/plugins/workflow/workflow-support/2.19-rc289.d09828a05a74/workflow-support-2.19-rc289.d09828a05a74.hpi
local groupId incrementalsVersion
# add a trailing ; so the \n gets added to the end
readarray -t "-d;" arrIN <<<"${version};";
unset 'arrIN[-1]';
groupId=${arrIN[1]}
incrementalsVersion=${arrIN[2]}
url="${JENKINS_INCREMENTALS_REPO_MIRROR}/$(echo "${groupId}" | tr '.' '/')/${plugin}/${incrementalsVersion}/${plugin}-${incrementalsVersion}.hpi"
else
JENKINS_UC_DOWNLOAD=${JENKINS_UC_DOWNLOAD:-"$JENKINS_UC/download"}
url="$JENKINS_UC_DOWNLOAD/plugins/$plugin/$version/${plugin}.hpi"
fi
echo "Downloading plugin: $plugin from $url"
# We actually want to allow variable value to be split into multiple options passed to curl.
# This is needed to allow long options and any options that take value.
# shellcheck disable=SC2086
retry_command curl ${CURL_OPTIONS:--sSfL} --connect-timeout "${CURL_CONNECTION_TIMEOUT:-20}" --retry "${CURL_RETRY:-3}" --retry-delay "${CURL_RETRY_DELAY:-0}" --retry-max-time "${CURL_RETRY_MAX_TIME:-60}" "$url" -o "$jpi"
return $?
}
checkIntegrity() {
local plugin jpi
plugin="$1"
jpi="$(getArchiveFilename "$plugin")"
unzip -t -qq "$jpi" >/dev/null
return $?
}
resolveDependencies() {
local plugin jpi dependencies
plugin="$1"
jpi="$(getArchiveFilename "$plugin")"
dependencies="$(unzip -p "$jpi" META-INF/MANIFEST.MF | tr -d '\r' | tr '\n' '|' | sed -e 's#| ##g' | tr '|' '\n' | grep "^Plugin-Dependencies: " | sed -e 's#^Plugin-Dependencies: ##')"
if [[ ! $dependencies ]]; then
echo " > $plugin has no dependencies"
return
fi
echo " > $plugin depends on $dependencies"
IFS=',' read -r -a array <<< "$dependencies"
for d in "${array[@]}"
do
plugin="$(cut -d':' -f1 - <<< "$d")"
if [[ $d == *"resolution:=optional"* ]]; then
echo "Skipping optional dependency $plugin"
else
local pluginInstalled
if pluginInstalled="$(echo -e "${bundledPlugins}\n${installedPlugins}" | grep "^${plugin}:")"; then
pluginInstalled="${pluginInstalled//[$'\r']}"
local versionInstalled; versionInstalled=$(versionFromPlugin "${pluginInstalled}")
local minVersion; minVersion=$(versionFromPlugin "${d}")
if versionLT "${versionInstalled}" "${minVersion}"; then
echo "Upgrading bundled dependency $d ($minVersion > $versionInstalled)"
download "$plugin" &
else
echo "Skipping already installed dependency $d ($minVersion <= $versionInstalled)"
fi
else
download "$plugin" &
fi
fi
done
wait
}
bundledPlugins() {
if [ -f "$JENKINS_WAR" ]
then
TEMP_PLUGIN_DIR=/tmp/plugintemp.$$
for i in $(jar tf "$JENKINS_WAR" | grep -E '[^detached-]plugins.*\..pi' | sort)
do
rm -fr $TEMP_PLUGIN_DIR
mkdir -p $TEMP_PLUGIN_DIR
PLUGIN=$(basename "$i"|cut -f1 -d'.')
(cd $TEMP_PLUGIN_DIR;jar xf "$JENKINS_WAR" "$i";jar xvf "$TEMP_PLUGIN_DIR/$i" META-INF/MANIFEST.MF >/dev/null 2>&1)
VER=$(grep -E -i Plugin-Version "$TEMP_PLUGIN_DIR/META-INF/MANIFEST.MF"|cut -d: -f2|sed 's/ //')
echo "$PLUGIN:$VER"
done
rm -fr $TEMP_PLUGIN_DIR
else
echo "war not found, installing all plugins: $JENKINS_WAR"
fi
}
versionFromPlugin() {
local plugin=$1
if [[ $plugin =~ .*:.* ]]; then
echo "${plugin##*:}"
else
echo "latest"
fi
}
installedPlugins() {
for f in "$REF_DIR"/*.jpi; do
echo "$(basename "$f" | sed -e 's/\.jpi//'):$(get_plugin_version "$f")"
done
}
jenkinsMajorMinorVersion() {
if [[ -f "$JENKINS_WAR" ]]; then
local version major minor
version="$(java -jar "$JENKINS_WAR" --version)"
major="$(echo "$version" | cut -d '.' -f 1)"
minor="$(echo "$version" | cut -d '.' -f 2)"
echo "$major.$minor"
else
echo ""
fi
}
main() {
local plugin jenkinsVersion
local plugins=()
mkdir -p "$REF_DIR" || exit 1
rm -f "$FAILED"
# Read plugins from stdin or from the command line arguments
if [[ ($# -eq 0) ]]; then
while read -r line || [ "$line" != "" ]; do
# Remove leading/trailing spaces, comments, and empty lines
plugin=$(echo "${line}" | tr -d '\r' | sed -e 's/^[ \t]*//g' -e 's/[ \t]*$//g' -e 's/[ \t]*#.*$//g' -e '/^[ \t]*$/d')
# Avoid adding empty plugin into array
if [ ${#plugin} -ne 0 ]; then
plugins+=("${plugin}")
fi
done
else
plugins=("$@")
fi
# Create lockfile manually before first run to make sure any explicit version set is used.
echo "Creating initial locks..."
for plugin in "${plugins[@]}"; do
mkdir "$(getLockFile "${plugin%%:*}")"
done
echo "Analyzing war $JENKINS_WAR..."
bundledPlugins="$(bundledPlugins)"
echo "Registering preinstalled plugins..."
installedPlugins="$(installedPlugins)"
# Get the update center URL based on the jenkins version
jenkinsVersion="$(jenkinsMajorMinorVersion)"
jenkinsUcJson=$(curl "${CURL_OPTIONS:--sSfL}" -o /dev/null -w "%{url_effective}" "${JENKINS_UC}/update-center.json?version=${jenkinsVersion}")
if [ -n "${jenkinsUcJson}" ]; then
JENKINS_UC_LATEST=${jenkinsUcJson//update-center.json/}
echo "Using version-specific update center: $JENKINS_UC_LATEST..."
else
JENKINS_UC_LATEST=
fi
echo "Downloading plugins..."
for plugin in "${plugins[@]}"; do
local reg='^([^:]+):?([^:]+)?:?([^:]+)?:?(http.+)?'
if [[ $plugin =~ $reg ]]; then
local pluginId="${BASH_REMATCH[1]}"
local version="${BASH_REMATCH[2]}"
local lock="${BASH_REMATCH[3]}"
local url="${BASH_REMATCH[4]}"
download "$pluginId" "$version" "${lock:-true}" "${url}" &
else
echo "Skipping the line '${plugin}' as it does not look like a reference to a plugin"
fi
done
wait
echo
echo "WAR bundled plugins:"
echo "${bundledPlugins}"
echo
echo "Installed plugins:"
installedPlugins
if [[ -f $FAILED ]]; then
echo "Some plugins failed to download!" "$(<"$FAILED")" >&2
exit 1
fi
echo "Cleaning up locks"
find "$REF_DIR" -regex ".*.lock" | while read -r filepath; do
rm -r "$filepath"
done
}
main "$@"