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Jenkins Docker Image with Additional Tools and Configuration

This Dockerfile extends the official Jenkins Docker image (LTS) and adds additional tools and configurations to enhance its functionality.

Table of Contents

Features

  • Installs OpenJDK 11, Maven, jq, and AWS CLI
  • Installs Docker and configures it to work within the Jenkins environment
  • Installs Terraform and other essential tools
  • Allows easy user switching between OS operations and Jenkins configuration
  • Configures Jenkins with specified plugins, settings, and jobs
  • Provides options to customize Jenkins HTTP and HTTPS ports
  • Cleans up unnecessary files to reduce image size

Prerequisites

  • Docker installed on the host machine

Building the Image

To build the Jenkins Docker image, run the following commands:

docker build \
  --build-arg JENKINS_DOCKER_TERRAFORM_DISTRO=<terraform_distribution_url> \
  --build-arg PLUGINS_FILE=<path_to_plugins_file> \
  --build-arg CONFIG_XML_FILE=<path_to_config_xml_file> \
  --build-arg SCRIPT_APPROVAL_FILE=<path_to_script_approval_file> \
  --build-arg HUDSON_TASKS_FILE=<path_to_hudson_tasks_file> \
  --build-arg JENKINS_JOBS_DIR=<path_to_jenkins_jobs_dir> \
  --build-arg PKCS12_FILE=<path_to_pkcs12_file> \
  --build-arg PKCS12_PASS=<pkcs12_password> \
  --build-arg JENKINS_HTTP_PORT=<custom_http_port> \
  --build-arg JENKINS_HTTPS_PORT=<custom_https_port> \
  -t your/jenkins-docker-image .

Configuration

Environment Variables

  • JENKINS_USERNAME: User to swap easily between OS operations and Jenkins configuration.
  • JENKINS_HTTP_PORT: Custom HTTP port for Jenkins (default is -1, which means the default Jenkins port).
  • JENKINS_HTTPS_PORT: Custom HTTPS port for Jenkins (default is 8443).

Configuration Files

  • PLUGINS_FILE: Text file containing a list of Jenkins plugins to be installed.
  • CONFIG_XML_FILE: Jenkins configuration XML file.
  • SCRIPT_APPROVAL_FILE: Jenkins scriptApproval XML file.
  • HUDSON_TASKS_FILE: Jenkins hudson.tasks.Maven XML file.
  • JENKINS_JOBS_DIR: Directory containing Jenkins job configurations.
  • PKCS12_FILE: Path to the PKCS12 file for Jenkins HTTPS configuration.
  • PKCS12_PASS: Password for the PKCS12 file.