Notes on Continuous Integration and Bamboo Setup

Introduction to Bamboo

• Bamboo is a continuous integration (CI) and continuous delivery (CD) tool.
• There are multiple tools available for CI/CD, including Jenkins, Travis CI, Microsoft TFS, etc.

Understanding CI/CD

• Continuous Integration (CI)

  • Developers create code and upload it to a version control system (e.g., Git, SVN).
  • Code undergoes a build process, which transforms it into an artifact.
  • Artifacts are not sent directly to clients; they are deployed into a testing environment for QA.

• Continuous Deployment:

  • The process of deploying artifacts to testing servers automatically.

• Continuous Testing:

  • Automated tests (e.g., using Selenium) are run to check the application’s functionality.

• Continuous Delivery:

  • Once testing is complete and everything works fine, the application is delivered to the production environment.

CI/CD Stages via Bamboo

1. Continuous Download:

   • Bamboo detects code changes and downloads them.

2. Continuous Build:

   • Bamboo triggers the build process using tools like Maven, Ant, etc.

3. Continuous Deployment:

   • Artifacts are automatically deployed to the QA environment.

4. Continuous Testing:

   • Bamboo runs automation tests to validate the application.

5. Continuous Delivery:

   • The application is deployed to production for the end-users to access it.

Setup Requirements for Bamboo

Preconditions

• Developers need to have code ready in a version control system.
• Example used: Java code downloaded from the internet and placed in a version control system.

Server Setup

• Three Linux servers are required:
  1. Bamboo Server (T2.medium)
  2. QA Server (T2.micro)
  3. Prod Server (T2.micro)

Cloud Platform

• AWS is recommended for creating virtual machines.
• Steps to create an AWS account:
  1. Sign up for a free AWS account.
  2. Create the required Linux instances in the chosen region (e.g., North California).

Bamboo Installation Steps

1. Connect to Bamboo Server:

   • Use SSH via Git Bash in Windows.

2. Install Prerequisites:

   • Update APT repository: sudo apt-get update
   • Install Software Properties Common: sudo apt-get install software-properties-common
   • Install Java JDK 1.8: sudo apt-get install openjdk-8-jdk
   • Verify Java installation: java -version
   • Install Maven and Git: sudo apt-get install maven git

3. Set Environment Variables:

   • Create JAVA_HOME variable and set the path.
   • Update the PATH variable to include Java.

4. Create Folders for Bamboo:

   • bamboo_home (for data storage).
   • bamboo_install (for installation files).

5. Download Bamboo:

   • Use wget to download the Bamboo installation files.
   • Extract the files using tar -xvf command.

6. Configure Bamboo:

   • Edit bamboo-init.properties to set the bamboo_home path.
   • Start Bamboo with startup.sh script.

7. Access Bamboo:

   • Use public IP and port 8085 in a browser to access the Bamboo setup page.
   • Obtain a license key from Atlassian for setup.

Next Steps

• Tomorrow, the focus will shift to installing Tomcat on the QA and Prod servers.
• Commands and video recording will be uploaded for reference.
• Important to understand that setup tasks may not be the responsibility of every DevOps engineer; focus on CI/CD flow is key.