Set Docker CI/CD

Requirements

OS	CPU	RAM	Disk space
RedHat/CentOS 9.x	2	8 GB	100 GB

The server's capacity and storage size depend on the number of implementations to be running at the same time.

Architecture

Docker Compose is the main part of this project architecture. Compose is a tool for defining and running multi-container Docker applications. With Compose, you use a YAML file to configure your application’s services. Then, with a single command, you create and start all the services from your configuration.

With the Compose commands, you can manage the whole lifecycle of your application:

• Start, stop, and rebuild services.
• View the status of running services.
• Stream the log output of running services.
• Run a one-off command on a service.

Resources

Services

Service	License	Version
Docker	Apache License Version 2.0	19.03.11
Docker-Compose	Apache License Version 2.0	1.25.5
Jenkins	MIT	2.222.4 (LTS)
Nexus Repository Manager OSS	Eclipse Public License Version 1.0	2.14.18-01
Sonarqube	GNU Lesser GPL License Version 3	8.3.1
Maven	GNU Lesser GPL License Version 3	3.5.4
Java	OpenJDK / Oracle JDK	1.8.0_242

Plugins

Plugin	License	Version
Jacoco	MIT	3.0.6
Sonar-Scanner	GNU Lesser GPL License Version 3	4.3.0.2102

Dependencies

For additional information, see Installing ODF 2 dependencies to on-premises Nexus.

Installation

Go to https://git.workfusion.com/scm/sit/site-reliability.git for the Git repository with source files.

1. Download the sources to the Linux server: cicd.tar.gz.

2. Create the installation folder.

   $ mkdir -p /opt/cicd

3. Unpack the downloaded package to the directory.

   $ tar -xvzf cicd.tar.gz -C /opt/cicd/ --strip 1

4. Add the server.crt and server.key SSL certificates to the /opt/cicd/nginx/ssl directory.

5. Go to the installation directory and execute the installation script:

   $ cd /opt/cicd
   $ chmod 755 install.sh
   $ ./install.sh

Cleanup

Go to the installation directory and execute the cleanup script:

$ cd /opt/cicd
$ chmod 755 clean.sh
$ ./clean.sh

Git repository configuration

1. Download the source files: git_files.tgz.

2. In the following files, replace SERVER_ADDR with your server's DNS:

   deploy.sh:source="https://SERVER_ADDR/nexus/content/sites/cicd-mvp-release"
   jenkins/ci_cd_declerative.jenkinsfile:        nexus_dns = 'SERVER_ADDR'
   pom.xml:            <url>https://SERVER_ADDR/nexus/content/repositories/wf-dependencies/</url>
   pom.xml:            <url>https://SERVER_ADDR/nexus/content/repositories/wf-dependencies/</url>

3. Add the files to your Git Repository.

4. Commit and push the changes.

Post-installation steps

Updating secure credentials

To update the secure credentials in the Jenkins web UI, follow the steps below:

1. Go to Jenkins > Credentials > System > Global credentials (unrestricted).

   

2. Click Add Credentials and enter the credentials for the Control Tower user.

   

3. Add another record with credentials for the Git repository. Use a username with the password or SSH keys.

Defining Git Repository for Jenkins pipeline

To define a Git repository for the Jenkins pipeline configuration, follow the steps below:

1. Go to Jenkins > ci_cd-declerative pipeline > Configure.

   

2. In the Pipeline section, set Repository URL, Credentials, and Branch Specifier.

   

3. Save the changes.