add docker command to jenkins image

Change-Id: I18142dee82caa6361d9b56fc87d64029e02572ec

jenkins/CONTRIBUTING.md

+# Issues and Contributing
+
+Please note that only issues related to this Docker image will be addressed here.
+
+* If you have Docker related issues, please ask in the [Docker user mailing list](https://groups.google.com/forum/#!forum/docker-user).
+* If you have Jenkins related issues, please ask in the [Jenkins mailing lists](https://jenkins-ci.org/content/mailing-lists).
+* If you are not sure, then this is probably not the place to create an issue and you should use any of the previously mentioned mailing lists.
+
+If after going through the previous checklist you still think you should create an issue here please provide:
+
+* Docker commands that you execute
+* Actual result
+* Expected outcome
+* Have you tried a non-dockerized Jenkins and get the expected outcome?
+* Output of `docker version`
+* Other relevant information

jenkins/Dockerfile

 #
-# Copyright (C) 2017 C-SKY Microsystems Co., Ltd.
+# Copyright (C) 2018 XueTong Tech., Ltd.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -14,14 +14,90 @@
 # limitations under the License.
 #
 
-FROM jenkins
+FROM registry.cn-hangzhou.aliyuncs.com/schbrain/jdk
 MAINTAINER xt
 
-USER root
 COPY sources.list /etc/apt/sources.list
-RUN apt-get update && apt-get install sudo -y --allow-unauthenticated \
-    && rm -rf /var/lib/apt/lists/* \
-    && echo "jenkins ALL=NOPASSWD: ALL" >> /etc/sudoers
 
-USER jenkins
+RUN apt-get update \
+    && apt-get install -y git curl \
+    && apt-get -y install apt-transport-https ca-certificates software-properties-common \
+    && curl -fsSL http://mirrors.aliyun.com/docker-ce/linux/ubuntu/gpg | apt-key add - \
+    && add-apt-repository "deb [arch=amd64] http://mirrors.aliyun.com/docker-ce/linux/ubuntu $(lsb_release -cs) stable" \
+    && apt-get -y update \
+    && apt-get -y install docker-ce \
+    && rm -rf /var/lib/apt/lists/*
 
+ARG user=jenkins
+ARG group=jenkins
+ARG uid=1000
+ARG gid=1000
+ARG http_port=8080
+ARG agent_port=50000
+
+ENV JENKINS_HOME /var/jenkins_home
+ENV JENKINS_SLAVE_AGENT_PORT ${agent_port}
+
+# Jenkins is run with user `jenkins`, uid = 1000
+# If you bind mount a volume from the host or a data container,
+# ensure you use the same uid
+RUN groupadd -g ${gid} ${group} \
+    && useradd -d "$JENKINS_HOME" -u ${uid} -g ${gid} -m -s /bin/bash ${user} \
+    && usermod -aG docker ${user}
+
+# Jenkins home directory is a volume, so configuration and build history
+# can be persisted and survive image upgrades
+VOLUME /var/jenkins_home
+
+# `/usr/share/jenkins/ref/` contains all reference configuration we want
+# to set on a fresh new installation. Use it to bundle additional plugins
+# or config file with your custom jenkins Docker image.
+RUN mkdir -p /usr/share/jenkins/ref/init.groovy.d
+
+ENV TINI_VERSION 0.14.0
+ENV TINI_SHA 6c41ec7d33e857d4779f14d9c74924cab0c7973485d2972419a3b7c7620ff5fd
+
+# Use tini as subreaper in Docker container to adopt zombie processes
+RUN curl -fsSL https://github.com/krallin/tini/releases/download/v${TINI_VERSION}/tini-static-amd64 -o /bin/tini && chmod +x /bin/tini \
+  && echo "$TINI_SHA  /bin/tini" | sha256sum -c -
+
+COPY init.groovy /usr/share/jenkins/ref/init.groovy.d/tcp-slave-agent-port.groovy
+
+# jenkins version being bundled in this docker image
+ARG JENKINS_VERSION
+ENV JENKINS_VERSION ${JENKINS_VERSION:-2.60.3}
+
+# jenkins.war checksum, download will be validated using it
+ARG JENKINS_SHA=2d71b8f87c8417f9303a73d52901a59678ee6c0eefcf7325efed6035ff39372a
+
+# Can be used to customize where jenkins.war get downloaded from
+ARG JENKINS_URL=https://repo.jenkins-ci.org/public/org/jenkins-ci/main/jenkins-war/${JENKINS_VERSION}/jenkins-war-${JENKINS_VERSION}.war
+
+# could use ADD but this one does not check Last-Modified header neither does it allow to control checksum
+# see https://github.com/docker/docker/issues/8331
+RUN curl -fsSL ${JENKINS_URL} -o /usr/share/jenkins/jenkins.war \
+  && echo "${JENKINS_SHA}  /usr/share/jenkins/jenkins.war" | sha256sum -c -
+
+ENV JENKINS_UC https://updates.jenkins.io
+ENV JENKINS_UC_EXPERIMENTAL=https://updates.jenkins.io/experimental
+RUN chown -R ${user} "$JENKINS_HOME" /usr/share/jenkins/ref
+
+# for main web interface:
+EXPOSE ${http_port}
+
+# will be used by attached slave agents:
+EXPOSE ${agent_port}
+
+ENV COPY_REFERENCE_FILE_LOG $JENKINS_HOME/copy_reference_file.log
+
+USER ${user}
+
+COPY jenkins-support /usr/local/bin/jenkins-support
+COPY jenkins.sh /usr/local/bin/jenkins.sh
+ENTRYPOINT ["/bin/tini", "--", "/usr/local/bin/jenkins.sh"]
+
+# from a derived Dockerfile, can use `RUN plugins.sh active.txt` to setup /usr/share/jenkins/ref/plugins from a support bundle
+COPY plugins.sh /usr/local/bin/plugins.sh
+COPY install-plugins.sh /usr/local/bin/install-plugins.sh
+
+COPY daemon.json /etc/docker/daemon.json

jenkins/Dockerfile-alpine

+# DO NOT UPGRADE alpine until https://github.com/jenkinsci/docker/issues/508 is fixed
+FROM openjdk:8u121-jdk-alpine
+
+RUN apk add --no-cache git openssh-client curl unzip bash ttf-dejavu coreutils
+
+ARG user=jenkins
+ARG group=jenkins
+ARG uid=1000
+ARG gid=1000
+ARG http_port=8080
+ARG agent_port=50000
+
+ENV JENKINS_HOME /var/jenkins_home
+ENV JENKINS_SLAVE_AGENT_PORT ${agent_port}
+
+# Jenkins is run with user `jenkins`, uid = 1000
+# If you bind mount a volume from the host or a data container, 
+# ensure you use the same uid
+RUN addgroup -g ${gid} ${group} \
+    && adduser -h "$JENKINS_HOME" -u ${uid} -G ${group} -s /bin/bash -D ${user}
+
+# Jenkins home directory is a volume, so configuration and build history 
+# can be persisted and survive image upgrades
+VOLUME /var/jenkins_home
+
+# `/usr/share/jenkins/ref/` contains all reference configuration we want 
+# to set on a fresh new installation. Use it to bundle additional plugins 
+# or config file with your custom jenkins Docker image.
+RUN mkdir -p /usr/share/jenkins/ref/init.groovy.d
+
+ENV TINI_VERSION 0.14.0
+ENV TINI_SHA 6c41ec7d33e857d4779f14d9c74924cab0c7973485d2972419a3b7c7620ff5fd
+
+# Use tini as subreaper in Docker container to adopt zombie processes 
+RUN curl -fsSL https://github.com/krallin/tini/releases/download/v${TINI_VERSION}/tini-static-amd64 -o /bin/tini && chmod +x /bin/tini \
+  && echo "$TINI_SHA  /bin/tini" | sha256sum -c -
+
+COPY init.groovy /usr/share/jenkins/ref/init.groovy.d/tcp-slave-agent-port.groovy
+
+# jenkins version being bundled in this docker image
+ARG JENKINS_VERSION
+ENV JENKINS_VERSION ${JENKINS_VERSION:-2.60.3}
+
+# jenkins.war checksum, download will be validated using it
+ARG JENKINS_SHA=2d71b8f87c8417f9303a73d52901a59678ee6c0eefcf7325efed6035ff39372a
+
+
+# Can be used to customize where jenkins.war get downloaded from
+ARG JENKINS_URL=https://repo.jenkins-ci.org/public/org/jenkins-ci/main/jenkins-war/${JENKINS_VERSION}/jenkins-war-${JENKINS_VERSION}.war
+
+# could use ADD but this one does not check Last-Modified header neither does it allow to control checksum 
+# see https://github.com/docker/docker/issues/8331
+RUN curl -fsSL ${JENKINS_URL} -o /usr/share/jenkins/jenkins.war \
+  && echo "${JENKINS_SHA}  /usr/share/jenkins/jenkins.war" | sha256sum -c -
+
+ENV JENKINS_UC https://updates.jenkins.io
+RUN chown -R ${user} "$JENKINS_HOME" /usr/share/jenkins/ref
+
+# for main web interface:
+EXPOSE ${http_port}
+
+# will be used by attached slave agents:
+EXPOSE ${agent_port}
+
+ENV COPY_REFERENCE_FILE_LOG $JENKINS_HOME/copy_reference_file.log
+
+USER ${user}
+
+COPY jenkins-support /usr/local/bin/jenkins-support
+COPY jenkins.sh /usr/local/bin/jenkins.sh
+ENTRYPOINT ["/bin/tini", "--", "/usr/local/bin/jenkins.sh"]
+
+# from a derived Dockerfile, can use `RUN plugins.sh active.txt` to setup /usr/share/jenkins/ref/plugins from a support bundle
+COPY plugins.sh /usr/local/bin/plugins.sh
+COPY install-plugins.sh /usr/local/bin/install-plugins.sh

jenkins/Jenkinsfile

+#!/usr/bin/env groovy
+
+properties([
+    buildDiscarder(logRotator(numToKeepStr: '5', artifactNumToKeepStr: '5')),
+    pipelineTriggers([cron('@daily')]),
+])
+
+node('docker') {
+    deleteDir()
+
+    stage('Checkout') {
+        checkout scm
+    }
+
+    if (!infra.isTrusted()) {
+
+        stage('shellcheck') {
+            // newer versions of the image don't have cat installed and docker pipeline fails
+            docker.image('koalaman/shellcheck:v0.4.6').inside() {
+                // run shellcheck ignoring error SC1091
+                // Not following: /usr/local/bin/jenkins-support was not specified as input
+                sh "shellcheck -e SC1091 *.sh"
+            }
+        }
+
+        /* Outside of the trusted.ci environment, we're building and testing
+         * the Dockerfile in this repository, but not publishing to docker hub
+         */
+        stage('Build') {
+            docker.build('jenkins')
+            docker.build('jenkins:alpine', '--file Dockerfile-alpine .')
+        }
+
+        stage('Test') {
+            sh """
+            git submodule update --init --recursive
+            git clone https://github.com/sstephenson/bats.git
+            bats/bin/bats tests
+            """
+        }
+    } else {
+        /* In our trusted.ci environment we only want to be publishing our
+         * containers from artifacts
+         */
+        stage('Publish') {
+            infra.withDockerCredentials {
+                sh './publish.sh'
+                sh './publish.sh --variant alpine'
+            }
+        }
+    }
+}

jenkins/LICENSE.txt

+The MIT License
+
+Copyright (c) 2014-, Michael Neale, Nicolas de Loof, Carlos Sanchez, and a number of other of contributors
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+

jenkins/README.md

+# Official Jenkins Docker image
+
+The Jenkins Continuous Integration and Delivery server.
+
+This is a fully functional Jenkins server.
+[http://jenkins.io/](http://jenkins.io/).
+
+<img src="http://jenkins-ci.org/sites/default/files/jenkins_logo.png"/>
+
+
+# Usage
+
+```
+docker run -p 8080:8080 -p 50000:50000 jenkins/jenkins:lts
+```
+
+NOTE: read below the _build executors_ part for the role of the `50000` port mapping.
+
+This will store the workspace in /var/jenkins_home. All Jenkins data lives in there - including plugins and configuration.
+You will probably want to make that an explicit volume so you can manage it and attach to another container for upgrades :
+
+```
+docker run -p 8080:8080 -p 50000:50000 -v jenkins_home:/var/jenkins_home jenkins/jenkins:lts
+```
+
+this will automatically create a 'jenkins_home' volume on docker host, that will survive container stop/restart/deletion.
+
+Avoid using a bind mount from a folder on host into `/var/jenkins_home`, as this might result in file permission issue. If you _really_ need to bind mount jenkins_home, ensure that directory on host is accessible by the jenkins user in container (jenkins user - uid 1000) or use `-u some_other_user` parameter with `docker run`.
+
+## Backing up data
+
+If you bind mount in a volume - you can simply back up that directory
+(which is jenkins_home) at any time.
+
+This is highly recommended. Treat the jenkins_home directory as you would a database - in Docker you would generally put a database on a volume.
+
+If your volume is inside a container - you can use ```docker cp $ID:/var/jenkins_home``` command to extract the data, or other options to find where the volume data is.
+Note that some symlinks on some OSes may be converted to copies (this can confuse jenkins with lastStableBuild links etc)
+
+For more info check Docker docs section on [Managing data in containers](https://docs.docker.com/engine/tutorials/dockervolumes/)
+
+# Setting the number of executors
+
+You can specify and set the number of executors of your Jenkins master instance using a groovy script. By default its set to 2 executors, but you can extend the image and change it to your desired number of executors :
+
+`executors.groovy`
+```
+import jenkins.model.*
+Jenkins.instance.setNumExecutors(5)
+```
+
+and `Dockerfile`
+
+```
+FROM jenkins/jenkins:lts
+COPY executors.groovy /usr/share/jenkins/ref/init.groovy.d/executors.groovy
+```
+
+
+# Attaching build executors
+
+You can run builds on the master out of the box.
+
+But if you want to attach build slave servers **through JNLP (Java Web Start)**: make sure you map the port: ```-p 50000:50000``` - which will be used when you connect a slave agent.
+
+If you are only using [SSH slaves](https://wiki.jenkins-ci.org/display/JENKINS/SSH+Slaves+plugin), then you do **NOT** need to put that port mapping.
+
+# Passing JVM parameters
+
+You might need to customize the JVM running Jenkins, typically to pass system properties or tweak heap memory settings. Use JAVA_OPTS environment
+variable for this purpose :
+
+```
+docker run --name myjenkins -p 8080:8080 -p 50000:50000 --env JAVA_OPTS=-Dhudson.footerURL=http://mycompany.com jenkins/jenkins:lts
+```
+
+# Configuring logging
+
+Jenkins logging can be configured through a properties file and `java.util.logging.config.file` Java property.
+For example:
+
+```
+mkdir data
+cat > data/log.properties <<EOF
+handlers=java.util.logging.ConsoleHandler
+jenkins.level=FINEST
+java.util.logging.ConsoleHandler.level=FINEST
+EOF
+docker run --name myjenkins -p 8080:8080 -p 50000:50000 --env JAVA_OPTS="-Djava.util.logging.config.file=/var/jenkins_home/log.properties" -v `pwd`/data:/var/jenkins_home jenkins/jenkins:lts
+```
+
+# Configuring reverse proxy
+If you want to install Jenkins behind a reverse proxy with prefix, example: mysite.com/jenkins, you need to add environnement variable `JENKINS_OPTS="--prefix=/jenkins"` and then follow the below procedures to configure your reverse proxy, which will depend if you have Apache or Nginx:
+- [Apache](https://wiki.jenkins-ci.org/display/JENKINS/Running+Jenkins+behind+Apache)
+- [Nginx](https://wiki.jenkins-ci.org/display/JENKINS/Jenkins+behind+an+NGinX+reverse+proxy)
+
+# Passing Jenkins launcher parameters
+
+Argument you pass to docker running the jenkins image are passed to jenkins launcher, so you can run for sample :
+```
+docker run jenkins/jenkins:lts --version
+```
+This will dump Jenkins version, just like when you run jenkins as an executable war.
+
+You also can define jenkins arguments as `JENKINS_OPTS`. This is usefull to define a set of arguments to pass to jenkins launcher as you
+define a derived jenkins image based on the official one with some customized settings. The following sample Dockerfile uses this option
+to force use of HTTPS with a certificate included in the image
+
+```
+FROM jenkins/jenkins:lts
+
+COPY https.pem /var/lib/jenkins/cert
+COPY https.key /var/lib/jenkins/pk
+ENV JENKINS_OPTS --httpPort=-1 --httpsPort=8083 --httpsCertificate=/var/lib/jenkins/cert --httpsPrivateKey=/var/lib/jenkins/pk
+EXPOSE 8083
+```
+
+You can also change the default slave agent port for jenkins by defining `JENKINS_SLAVE_AGENT_PORT` in a sample Dockerfile.
+
+```
+FROM jenkins/jenkins:lts
+ENV JENKINS_SLAVE_AGENT_PORT 50001
+```
+or as a parameter to docker,
+```
+docker run --name myjenkins -p 8080:8080 -p 50001:50001 --env JENKINS_SLAVE_AGENT_PORT=50001 jenkins/jenkins:lts
+```
+
+# Installing more tools
+
+You can run your container as root - and install via apt-get, install as part of build steps via jenkins tool installers, or you can create your own Dockerfile to customise, for example:
+
+```
+FROM jenkins/jenkins:lts
+# if we want to install via apt
+USER root
+RUN apt-get update && apt-get install -y ruby make more-thing-here
+# drop back to the regular jenkins user - good practice
+USER jenkins
+```
+
+In such a derived image, you can customize your jenkins instance with hook scripts or additional plugins.
+For this purpose, use `/usr/share/jenkins/ref` as a place to define the default JENKINS_HOME content you
+wish the target installation to look like :
+
+```
+FROM jenkins/jenkins:lts
+COPY custom.groovy /usr/share/jenkins/ref/init.groovy.d/custom.groovy
+```
+
+## Preinstalling plugins
+
+You can rely on the `install-plugins.sh` script to pass a set of plugins to download with their dependencies.
+This script will perform downloads from update centers, an internet access is required for the default update centers.
+
+### Setting update centers
+
+During the download, the script will use update centers defined by the following environment variables:
+
+* `JENKINS_UC` - Main update center.
+  This update center may offer plugin versions depending on the Jenkins LTS Core versions.
+  Default value: https://updates.jenkins.io
+* `JENKINS_UC_EXPERIMENTAL` - [Experimental Update Center](https://jenkins.io/blog/2013/09/23/experimental-plugins-update-center/).
+  This center offers Alpha and Beta versions of plugins.
+  Default value: https://updates.jenkins.io/experimental
+
+It is possible to override the environment variables in images.
+
+:exclamation: Note that changing this variables **will not** change the Update Center being used by Jenkins runtime.
+
+### Plugin version format
+
+Use plugin artifact ID, without `-plugin` extension, and append the version if needed separated by `:`.
+Dependencies that are already included in the Jenkins war will only be downloaded if their required version is newer than the one included.
+
+There are also custom version specifiers:
+
+* `latest` - download the latest version from the main update center.
+  For Jenkins LTS images
+  (example: `git:latest`)
+* `experimental` - download the latest version from the experimental update center defined by the `JENKINS_UC_EXPERIMENTAL` environment variable (example: `filesystem_scm:experimental`)
+
+### Script usage
+
+You can run the script manually in Dockerfile:
+
+```Dockerfile
+FROM jenkins/jenkins:lts
+RUN /usr/local/bin/install-plugins.sh docker-slaves github-branch-source:1.8
+```
+
+Furthermore it is possible to pass a file that contains this set of plugins (with or without line breaks).
+
+```Dockerfile
+FROM jenkins/jenkins:lts
+COPY plugins.txt /usr/share/jenkins/ref/plugins.txt
+RUN /usr/local/bin/install-plugins.sh < /usr/share/jenkins/ref/plugins.txt
+```
+
+When jenkins container starts, it will check `JENKINS_HOME` has this reference content, and copy them
+there if required. It will not override such files, so if you upgraded some plugins from UI they won't
+be reverted on next start.
+
+In case you *do* want to override, append '.override' to the name of the reference file. E.g. a file named
+`/usr/share/jenkins/ref/config.xml.override` will overwrite an existing `config.xml` file in JENKINS_HOME.
+
+Also see [JENKINS-24986](https://issues.jenkins-ci.org/browse/JENKINS-24986)
+
+
+Here is an example to get the list of plugins from an existing server:
+
+```
+JENKINS_HOST=username:password@myhost.com:port
+curl -sSL "http://$JENKINS_HOST/pluginManager/api/xml?depth=1&xpath=/*/*/shortName|/*/*/version&wrapper=plugins" | perl -pe 's/.*?<shortName>([\w-]+).*?<version>([^<]+)()(<\/\w+>)+/\1 \2\n/g'|sed 's/ /:/'
+```
+
+Example Output:
+
+```
+cucumber-testresult-plugin:0.8.2
+pam-auth:1.1
+matrix-project:1.4.1
+script-security:1.13
+...
+```
+
+For 2.x-derived images, you may also want to
+
+    RUN echo 2.0 > /usr/share/jenkins/ref/jenkins.install.UpgradeWizard.state
+
+to indicate that this Jenkins installation is fully configured.
+Otherwise a banner will appear prompting the user to install additional plugins,
+which may be inappropriate.
+
+# Upgrading
+
+All the data needed is in the /var/jenkins_home directory - so depending on how you manage that - depends on how you upgrade. Generally - you can copy it out - and then "docker pull" the image again - and you will have the latest LTS - you can then start up with -v pointing to that data (/var/jenkins_home) and everything will be as you left it.
+
+As always - please ensure that you know how to drive docker - especially volume handling!
+
+## Upgrading plugins
+
+By default, plugins will be upgraded if they haven't been upgraded manually and if the version from the docker image is newer than the version in the container. Versions installed by the docker image are tracked through a marker file.
+
+The default behaviour when upgrading from a docker image that didn't write marker files is to leave existing plugins in place. If you want to upgrade existing plugins without marker you may run the docker image with `-e TRY_UPGRADE_IF_NO_MARKER=true`. Then plugins will be upgraded if the version provided by the docker image is newer.
+
+# Building
+
+Build with the usual
+
+    docker build -t jenkins/jenkins .
+
+Tests are written using [bats](https://github.com/sstephenson/bats) under the `tests` dir
+
+    bats tests
+
+Bats can be easily installed with `brew install bats` on OS X
+
+# Questions?
+
+Jump on irc.freenode.net and the #jenkins room. Ask!

jenkins/daemon.json

+{
+  "registry-mirrors": ["https://fwajlt71.mirror.aliyuncs.com"]
+}

jenkins/docker-compose.yml

+master:
+  build: .
+  environment:
+    JAVA_OPTS: "-Djava.awt.headless=true"
+  ports:
+    - "50000:50000"
+    - "8080:8080"
+  volumes:
+    - /var/jenkins_home

jenkins/init.groovy

+import hudson.model.*;
+import jenkins.model.*;
+
+
+Thread.start {
+      sleep 10000
+      println "--> setting agent port for jnlp"
+      def env = System.getenv()
+      int port = env['JENKINS_SLAVE_AGENT_PORT'].toInteger()
+      Jenkins.instance.setSlaveAgentPort(port)
+      println "--> setting agent port for jnlp... done"
+}

jenkins/install-plugins.sh

+#!/bin/bash -eu
+
+# Resolve dependencies and download plugins given on the command line
+#
+# FROM jenkins
+# RUN install-plugins.sh docker-slaves github-branch-source
+
+set -o pipefail
+
+REF_DIR=${REF:-/usr/share/jenkins/ref/plugins}
+FAILED="$REF_DIR/failed-plugins.txt"
+
+. /usr/local/bin/jenkins-support
+
+getLockFile() {
+    printf '%s' "$REF_DIR/${1}.lock"
+}
+
+getArchiveFilename() {
+    printf '%s' "$REF_DIR/${1}.jpi"
+}
+
+download() {
+    local plugin originalPlugin version lock ignoreLockFile
+    plugin="$1"
+    version="${2:-latest}"
+    ignoreLockFile="${3:-}"
+    lock="$(getLockFile "$plugin")"
+
+    if [[ $ignoreLockFile ]] || mkdir "$lock" &>/dev/null; then
+        if ! doDownload "$plugin" "$version"; then
+            # some plugin don't follow the rules about artifact ID
+            # typically: docker-plugin
+            originalPlugin="$plugin"
+            plugin="${plugin}-plugin"
+            if ! doDownload "$plugin" "$version"; 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="$2"
+    jpi="$(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: $plugin"
+        return 0
+    fi
+
+    if [[ "$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/${plugin}.hpi"
+    else
+        JENKINS_UC_DOWNLOAD=${JENKINS_UC_DOWNLOAD:-"$JENKINS_UC/download"}
+        url="$JENKINS_UC_DOWNLOAD/plugins/$plugin/$version/${plugin}.hpi"
+    fi
+
+    echo "Downloading plugin: $plugin from $url"
+    curl --connect-timeout "${CURL_CONNECTION_TIMEOUT:-20}" --retry "${CURL_RETRY:-5}" --retry-delay "${CURL_RETRY_DELAY:-0}" --retry-max-time "${CURL_RETRY_MAX_TIME:-60}" -s -f -L "$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 "${bundledPlugins}" | grep "^${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 bundled dependency $d ($minVersion <= $versionInstalled)"
+                fi
+            else
+                download "$plugin" &
+            fi
+        fi
+    done
+    wait
+}
+
+bundledPlugins() {
+    local JENKINS_WAR=/usr/share/jenkins/jenkins.war
+    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 $TEMP_PLUGIN_DIR
+    else
+        rm -f "$TEMP_ALREADY_INSTALLED"
+        echo "ERROR file not found: $JENKINS_WAR"
+        exit 1
+    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 "$f")"
+    done
+}
+
+jenkinsMajorMinorVersion() {
+    local JENKINS_WAR
+    JENKINS_WAR=/usr/share/jenkins/jenkins.war
+    if [[ -f "$JENKINS_WAR" ]]; then
+        local version major minor
+        version="$(java -jar /usr/share/jenkins/jenkins.war --version)"
+        major="$(echo "$version" | cut -d '.' -f 1)"
+        minor="$(echo "$version" | cut -d '.' -f 2)"
+        echo "$major.$minor"
+    else
+        echo "ERROR file not found: $JENKINS_WAR"
+        return 1
+    fi
+}
+
+main() {
+    local plugin pluginVersion jenkinsVersion
+    local plugins=()
+
+    mkdir -p "$REF_DIR" || exit 1
+
+    # Read plugins from stdin or from the command line arguments
+    if [[ ($# -eq 0) ]]; then
+        while read -r line; do
+            plugins+=("${line}")
+        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..."
+    bundledPlugins="$(bundledPlugins)"
+
+    # Check if there's a version-specific update center, which is the case for LTS versions
+    jenkinsVersion="$(jenkinsMajorMinorVersion)"
+    if curl -fsL -o /dev/null "$JENKINS_UC/$jenkinsVersion"; then
+        JENKINS_UC_LATEST="$JENKINS_UC/$jenkinsVersion"
+        echo "Using version-specific update center: $JENKINS_UC_LATEST..."
+    else
+        JENKINS_UC_LATEST=
+    fi
+
+    echo "Downloading plugins..."
+    for plugin in "${plugins[@]}"; do
+        pluginVersion=""
+
+        if [[ $plugin =~ .*:.* ]]; then
+            pluginVersion=$(versionFromPlugin "${plugin}")
+            plugin="${plugin%%:*}"
+        fi
+
+        download "$plugin" "$pluginVersion" "true" &
+    done
+    wait
+
+    echo
+    echo "WAR bundled plugins:"
+    echo "${bundledPlugins}"
+    echo
+    echo "Installed plugins:"
+    installedPlugins
+
+    if [[ -f $FAILED ]]; then
+        echo "Some plugins failed to download!" "$(<"$FAILED")" >&2
+        exit 1
+    fi
+
+    echo "Cleaning up locks"
+    rm -r "$REF_DIR"/*.lock
+}
+
+main "$@"

jenkins/jenkins-support

+#!/bin/bash -eu
+
+# compare if version1 < version2
+versionLT() {
+    local v1; v1=$(echo "$1" | cut -d '-' -f 1 )
+    local q1; q1=$(echo "$1" | cut -s -d '-' -f 2- )
+    local v2; v2=$(echo "$2" | cut -d '-' -f 1 )
+    local q2; q2=$(echo "$2" | cut -s -d '-' -f 2- )
+    if [ "$v1" = "$v2" ]; then
+        if [ "$q1" = "$q2" ]; then
+            return 1
+        else
+            if [ -z "$q1" ]; then
+                return 1
+            else
+                if [ -z "$q2" ]; then
+                    return 0
+                else
+                    [  "$q1" = "$(echo -e "$q1\n$q2" | sort -V | head -n1)" ]
+                fi
+            fi
+        fi
+    else
+        [  "$v1" = "$(echo -e "$v1\n$v2" | sort -V | head -n1)" ]
+    fi
+}
+
+# returns a plugin version from a plugin archive
+get_plugin_version() {
+    local archive; archive=$1
+    local version; version=$(unzip -p "$archive" META-INF/MANIFEST.MF | grep "^Plugin-Version: " | sed -e 's#^Plugin-Version: ##')
+    version=${version%%[[:space:]]}
+    echo "$version"
+}
+
+# Copy files from /usr/share/jenkins/ref into $JENKINS_HOME
+# So the initial JENKINS-HOME is set with expected content.
+# Don't override, as this is just a reference setup, and use from UI
+# can then change this, upgrade plugins, etc.
+copy_reference_file() {
+    f="${1%/}"
+    b="${f%.override}"
+    rel="${b:23}"
+    version_marker="${rel}.version_from_image"
+    dir=$(dirname "${b}")
+    local action;
+    local reason;
+    local container_version;
+    local image_version;
+    local marker_version;
+    local log; log=false
+    if [[ ${rel} == plugins/*.jpi ]]; then
+        container_version=$(get_plugin_version "$JENKINS_HOME/${rel}")
+        image_version=$(get_plugin_version "${f}")
+        if [[ -e $JENKINS_HOME/${version_marker} ]]; then
+            marker_version=$(cat "$JENKINS_HOME/${version_marker}")
+            if versionLT "$marker_version" "$container_version"; then
+                action="SKIPPED"
+                reason="Installed version ($container_version) has been manually upgraded from initial version ($marker_version)"
+                log=true
+            else
+                if [[ "$image_version" == "$container_version" ]]; then
+                    action="SKIPPED"
+                    reason="Version from image is the same as the installed version $image_version"
+                else
+                    if versionLT "$image_version" "$container_version"; then
+                        action="SKIPPED"
+                        log=true
+                        reason="Image version ($image_version) is older than installed version ($container_version)"
+                    else
+                        action="UPGRADED"
+                        log=true
+                        reason="Image version ($image_version) is newer than installed version ($container_version)"
+                    fi
+                fi
+            fi
+        else
+            if [[ -n "$TRY_UPGRADE_IF_NO_MARKER" ]]; then
+                if [[ "$image_version" == "$container_version" ]]; then
+                    action="SKIPPED"
+                    reason="Version from image is the same as the installed version $image_version (no marker found)"
+                    # Add marker for next time
+                    echo "$image_version" > "$JENKINS_HOME/${version_marker}"
+                else
+                    if versionLT "$image_version" "$container_version"; then
+                        action="SKIPPED"
+                        log=true
+                        reason="Image version ($image_version) is older than installed version ($container_version) (no marker found)"
+                    else
+                        action="UPGRADED"
+                        log=true
+                        reason="Image version ($image_version) is newer than installed version ($container_version) (no marker found)"
+                    fi
+                fi
+            fi
+        fi
+        if [[ ! -e $JENKINS_HOME/${rel} || "$action" == "UPGRADED" || $f = *.override ]]; then
+            action=${action:-"INSTALLED"}
+            log=true
+            mkdir -p "$JENKINS_HOME/${dir:23}"
+            cp -r "${f}" "$JENKINS_HOME/${rel}";
+            # pin plugins on initial copy
+            touch "$JENKINS_HOME/${rel}.pinned"
+            echo "$image_version" > "$JENKINS_HOME/${version_marker}"
+            reason=${reason:-$image_version}
+        else
+            action=${action:-"SKIPPED"}
+        fi
+    else
+        if [[ ! -e $JENKINS_HOME/${rel} || $f = *.override ]]
+        then
+            action="INSTALLED"
+            log=true
+            mkdir -p "$JENKINS_HOME/${dir:23}"
+            cp -r "${f}" "$JENKINS_HOME/${rel}";
+        else
+            action="SKIPPED"
+        fi
+    fi
+    if [[ -n "$VERBOSE" || "$log" == "true" ]]; then
+        if [ -z "$reason" ]; then
+            echo "$action $rel" >> "$COPY_REFERENCE_FILE_LOG"
+        else
+            echo "$action $rel : $reason" >> "$COPY_REFERENCE_FILE_LOG"
+        fi
+    fi
+}
\ No newline at end of file

jenkins/jenkins.sh

+#! /bin/bash -e
+
+: "${JENKINS_HOME:="/var/jenkins_home"}"
+touch "${COPY_REFERENCE_FILE_LOG}" || { echo "Can not write to ${COPY_REFERENCE_FILE_LOG}. Wrong volume permissions?"; exit 1; }
+echo "--- Copying files at $(date)" >> "$COPY_REFERENCE_FILE_LOG"
+find /usr/share/jenkins/ref/ \( -type f -o -type l \) -exec bash -c '. /usr/local/bin/jenkins-support; for arg; do copy_reference_file "$arg"; done' _ {} +
+
+# if `docker run` first argument start with `--` the user is passing jenkins launcher arguments
+if [[ $# -lt 1 ]] || [[ "$1" == "--"* ]]; then
+
+  # read JAVA_OPTS and JENKINS_OPTS into arrays to avoid need for eval (and associated vulnerabilities)
+  java_opts_array=()
+  while IFS= read -r -d '' item; do
+    java_opts_array+=( "$item" )
+  done < <([[ $JAVA_OPTS ]] && xargs printf '%s\0' <<<"$JAVA_OPTS")
+
+  jenkins_opts_array=( )
+  while IFS= read -r -d '' item; do
+    jenkins_opts_array+=( "$item" )
+  done < <([[ $JENKINS_OPTS ]] && xargs printf '%s\0' <<<"$JENKINS_OPTS")
+
+  exec java "${java_opts_array[@]}" -jar /usr/share/jenkins/jenkins.war "${jenkins_opts_array[@]}" "$@"
+fi
+
+# As argument is not jenkins, assume user want to run his own process, for example a `bash` shell to explore this image
+exec "$@"

jenkins/plugins.sh

+#! /bin/bash
+
+# Parse a support-core plugin -style txt file as specification for jenkins plugins to be installed
+# in the reference directory, so user can define a derived Docker image with just :
+#
+# FROM jenkins
+# COPY plugins.txt /plugins.txt
+# RUN /usr/local/bin/plugins.sh /plugins.txt
+#
+# Note: Plugins already installed are skipped
+#
+
+set -e
+
+echo "WARN: plugins.sh is deprecated, please switch to install-plugins.sh"
+
+if [ -z "$1" ]
+then
+    echo "
+USAGE:
+  Parse a support-core plugin -style txt file as specification for jenkins plugins to be installed
+  in the reference directory, so user can define a derived Docker image with just :
+
+  FROM jenkins
+  COPY plugins.txt /plugins.txt
+  RUN /usr/local/bin/plugins.sh /plugins.txt
+
+  Note: Plugins already installed are skipped
+
+"
+    exit 1
+else
+    JENKINS_INPUT_JOB_LIST=$1
+    if [ ! -f "$JENKINS_INPUT_JOB_LIST" ]
+    then
+        echo "ERROR File not found: $JENKINS_INPUT_JOB_LIST"
+        exit 1
+    fi
+fi
+
+# the war includes a # of plugins, to make the build efficient filter out
+# the plugins so we dont install 2x - there about 17!
+if [ -d "$JENKINS_HOME" ]
+then
+    TEMP_ALREADY_INSTALLED=$JENKINS_HOME/preinstalled.plugins.$$.txt
+else
+    echo "ERROR $JENKINS_HOME not found"
+    exit 1
+fi
+
+JENKINS_PLUGINS_DIR=/var/jenkins_home/plugins
+if [ -d "$JENKINS_PLUGINS_DIR" ]
+then
+    echo "Analyzing: $JENKINS_PLUGINS_DIR"
+    for i in "$JENKINS_PLUGINS_DIR"/*/; do
+        JENKINS_PLUGIN=$(basename "$i")
+        JENKINS_PLUGIN_VER=$(grep -E -i Plugin-Version "$i/META-INF/MANIFEST.MF"|cut -d: -f2|sed 's/ //')
+        echo "$JENKINS_PLUGIN:$JENKINS_PLUGIN_VER"
+    done >"$TEMP_ALREADY_INSTALLED"
+else
+    JENKINS_WAR=/usr/share/jenkins/jenkins.war
+    if [ -f "$JENKINS_WAR" ]
+    then
+        echo "Analyzing war: $JENKINS_WAR"
+        TEMP_PLUGIN_DIR=/tmp/plugintemp.$$
+        while read -r i <&3; do
+            rm -fr "$TEMP_PLUGIN_DIR"
+            mkdir -p "$TEMP_PLUGIN_DIR"
+            PLUGIN=$(basename "$i"|cut -f1 -d'.')
+            (cd "$TEMP_PLUGIN_DIR" || exit; jar xf "$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:$VER"
+        done 3< <(jar tf "$JENKINS_WAR" | grep -E '[^detached-]plugins.*\..pi' | sort) > "$TEMP_ALREADY_INSTALLED"
+        rm -fr "$TEMP_PLUGIN_DIR"
+    else
+        rm -f "$TEMP_ALREADY_INSTALLED"
+        echo "ERROR file not found: $JENKINS_WAR"
+        exit 1
+    fi
+fi
+
+REF=/usr/share/jenkins/ref/plugins
+mkdir -p $REF
+COUNT_PLUGINS_INSTALLED=0
+while read -r spec || [ -n "$spec" ]; do
+
+    plugin=()
+    IFS=' ' read -r -a plugin <<< "${spec//:/ }"
+    [[ ${plugin[0]} =~ ^# ]] && continue
+    [[ ${plugin[0]} =~ ^[[:space:]]*$ ]] && continue
+    [[ -z ${plugin[1]} ]] && plugin[1]="latest"
+
+    if [ -z "$JENKINS_UC_DOWNLOAD" ]; then
+      JENKINS_UC_DOWNLOAD=$JENKINS_UC/download
+    fi
+
+    if ! grep -q "${plugin[0]}:${plugin[1]}" "$TEMP_ALREADY_INSTALLED"
+    then
+        echo "Downloading ${plugin[0]}:${plugin[1]}"
+        curl --retry 3 --retry-delay 5 -sSL -f "${JENKINS_UC_DOWNLOAD}/plugins/${plugin[0]}/${plugin[1]}/${plugin[0]}.hpi" -o "$REF/${plugin[0]}.jpi"
+        unzip -qqt "$REF/${plugin[0]}.jpi"
+        (( COUNT_PLUGINS_INSTALLED += 1 ))
+    else
+        echo "  ... skipping already installed:  ${plugin[0]}:${plugin[1]}"
+    fi
+done  < "$JENKINS_INPUT_JOB_LIST"
+
+echo "---------------------------------------------------"
+if (( "$COUNT_PLUGINS_INSTALLED" > 0 ))
+then
+    echo "INFO: Successfully installed $COUNT_PLUGINS_INSTALLED plugins."
+
+    if [ -d $JENKINS_PLUGINS_DIR ]
+    then
+        echo "INFO: Please restart the container for changes to take effect!"
+    fi
+else
+    echo "INFO: No changes, all plugins previously installed."
+
+fi
+echo "---------------------------------------------------"
+
+#cleanup
+rm "$TEMP_ALREADY_INSTALLED"
+exit 0

jenkins/publish.sh

+#!/bin/bash -eu
+
+# Publish any versions of the docker image not yet pushed to jenkins/jenkins
+# Arguments:
+#   -n dry run, do not build or publish images
+#   -d debug
+
+set -o pipefail
+
+sort-versions() {
+    if [ "$(uname)" == 'Darwin' ]; then
+        gsort --version-sort
+    else
+        sort --version-sort
+    fi
+}
+
+# Try tagging with and without -f to support all versions of docker
+docker-tag() {
+    local from="jenkins/jenkins:$1"
+    local to="$2/jenkins:$3"
+    local out
+
+    docker pull "$from"
+    if out=$(docker tag -f "$from" "$to" 2>&1); then
+        echo "$out"
+    else
+        docker tag "$from" "$to"
+    fi
+}
+
+login-token() {
+    # could use jq .token
+    curl -q -sSL "https://auth.docker.io/token?service=registry.docker.io&scope=repository:jenkins/jenkins:pull" | grep -o '"token":"[^"]*"' | cut -d':' -f 2 | xargs echo
+}
+
+is-published() {
+    get-manifest "$1" &> /dev/null
+}
+
+get-manifest() {
+    local tag=$1
+    local opts=""
+    if [ "$debug" = true ]; then
+        opts="-v"
+    fi
+    curl $opts -q -fsSL -H "Accept: application/vnd.docker.distribution.manifest.v2+json" -H "Authorization: Bearer $TOKEN" "https://index.docker.io/v2/jenkinsci/jenkins/manifests/$tag"
+}
+
+get-digest() {
+    local manifest
+    manifest=$(get-manifest "$1")
+    #get-manifest "$1" | jq .config.digest
+    if [ "$debug" = true ]; then
+        >&2 echo "DEBUG: Manifest for $1: $manifest"
+    fi
+    echo "$manifest" | grep -A 10 -o '"config".*' | grep digest | head -1 | cut -d':' -f 2,3 | xargs echo
+}
+
+get-latest-versions() {
+    curl -q -fsSL https://repo.jenkins-ci.org/releases/org/jenkins-ci/main/jenkins-war/maven-metadata.xml | grep '<version>.*</version>' | grep -E -o '[0-9]+(\.[0-9]+)+' | sort-versions | uniq | tail -n 20
+}
+
+publish() {
+    local version=$1
+    local variant=$2
+    local tag="${version}${variant}"
+    local sha
+    local build_opts=(--no-cache --pull)
+
+    if [ "$dry_run" = true ]; then
+        build_opts=()
+    fi
+
+    local dir=war
+    # lts is in a different dir
+    if [[ "$version" =~ ^[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
+        dir=war-stable
+    fi
+    sha=$(curl -q -fsSL "http://mirrors.jenkins.io/${dir}/${version}/jenkins.war.sha256" | cut -d' ' -f 1)
+
+    docker build --file "Dockerfile$variant" \
+                 --build-arg "JENKINS_VERSION=$version" \
+                 --build-arg "JENKINS_SHA=$sha" \
+                 --tag "jenkins/jenkins:${tag}" \
+                 --tag "jenkinsci/jenkins:${tag}" \
+                 "${build_opts[@]}" .
+
+    if [ ! "$dry_run" = true ]; then
+        docker push "jenkins/jenkins:${tag}"
+        docker push "jenkinsci/jenkins:${tag}"        
+    fi
+}
+
+tag-and-push() {
+    local source=$1
+    local target=$2
+    local digest_source
+    local digest_target
+
+    if [ "$debug" = true ]; then
+        >&2 echo "DEBUG: Getting digest for ${source}"
+    fi
+    # if tag doesn't exist yet, ie. dry run
+    if ! digest_source=$(get-digest "${source}"); then
+        echo "Unable to get digest for ${source} ${digest_source}"
+        digest_source=""
+    fi
+
+    if [ "$debug" = true ]; then
+        >&2 echo "DEBUG: Getting digest for ${target}"
+    fi
+    if ! digest_target=$(get-digest "${target}"); then
+        echo "Unable to get digest for ${target} ${digest_target}"
+        digest_target=""
+    fi
+
+    if [ "$digest_source" == "$digest_target" ] && [ -n "${digest_target}" ]; then
+        echo "Images ${source} [$digest_source] and ${target} [$digest_target] are already the same, not updating tags"
+    else
+        echo "Creating tag ${target} pointing to ${source}"
+        docker-tag "${source}" "jenkins" "${target}"
+        docker-tag "${source}" "jenkinsci" "${target}"
+        if [ ! "$dry_run" = true ]; then
+            echo "Pushing jenkins/jenkins:${target}"
+            docker push "jenkins/jenkins:${target}"
+            docker push "jenkinsci/jenkins:${target}"
+        else
+            echo "Would push jenkins/jenkins:${target}"
+        fi
+    fi
+}
+
+publish-latest() {
+    local version=$1
+    local variant=$2
+
+    # push latest (for master) or the name of the branch (for other branches)
+    if [ -z "${variant}" ]; then
+        tag-and-push "${version}${variant}" "latest"
+    else
+        tag-and-push "${version}${variant}" "${variant#-}"
+    fi
+}
+
+publish-lts() {
+    local version=$1
+    local variant=$2
+    tag-and-push "${version}${variant}" "lts${variant}"
+}
+
+# Process arguments
+
+dry_run=false
+debug=false
+variant=""
+
+while [[ $# -gt 0 ]]; do
+    key="$1"
+    case $key in
+        -n)
+        dry_run=true
+        ;;
+        -d)
+        debug=true
+        ;;
+        -v|--variant)
+        variant="-"$2
+        shift
+        ;;
+        *)
+        echo "Unknown option: $key"
+        return 1
+        ;;
+    esac
+    shift
+done
+
+
+if [ "$dry_run" = true ]; then
+    echo "Dry run, will not publish images"
+fi
+
+TOKEN=$(login-token)
+
+lts_version=""
+version=""
+for version in $(get-latest-versions); do
+    if is-published "$version$variant"; then
+        echo "Tag is already published: $version$variant"
+    else
+        echo "Publishing version: $version$variant"
+        publish "$version" "$variant"
+    fi
+
+    # Update lts tag
+    if [[ "$version" =~ ^[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
+        lts_version="${version}"
+    fi
+done
+
+publish-latest "${version}" "${variant}"
+if [ -n "${lts_version}" ]; then
+    publish-lts "${lts_version}" "${variant}"
+fi

jenkins/update-official-library.sh

+#!/bin/bash -eu
+
+# Generate the Docker official-images file
+
+sha() {
+    local branch=$1
+    git rev-parse "$branch"
+}
+
+version_from_dockerfile() {
+    local branch=$1
+    git show "$branch:Dockerfile" | grep JENKINS_VERSION: | sed -e 's/.*:-\(.*\)}/\1/'
+}
+
+master_sha=$(sha master)
+alpine_sha=$(sha alpine)
+
+master_version=$(version_from_dockerfile master)
+alpine_version=$(version_from_dockerfile alpine)
+
+if ! [ "$master_version" == "$alpine_version" ]; then
+    echo "Master version '$master_version' does not match alpine version '$alpine_version'"
+    exit 1
+fi
+
+cat << EOF > ../official-images/library/jenkins
+# maintainer: Nicolas De Loof <nicolas.deloof@gmail.com> (@ndeloof)
+# maintainer: Michael Neale <mneale@cloudbees.com> (@michaelneale)
+# maintainer: Carlos Sanchez <csanchez@cloudbees.com> (@carlossg)
+
+latest: git://github.com/jenkinsci/jenkins-ci.org-docker@$master_sha
+$master_version: git://github.com/jenkinsci/jenkins-ci.org-docker@$master_sha
+
+alpine: git://github.com/jenkinsci/jenkins-ci.org-docker@$alpine_sha
+$alpine_version-alpine: git://github.com/jenkinsci/jenkins-ci.org-docker@$alpine_sha
+EOF