![- Good
- Free open-source
- Lots of plugins - [1]
- Multi-platform support – think iOS, Windows builds.
- Easy scale out.
- Not so good
- GUI – good to start off
- Manual setup → Config drift → Build box is now special/golden/indispensable
- Difficult to reuse jobs
- Painful especially when n(jobs) > ~5
- Updating jobs becomes a nightmare
- Jenkins DSL is available
- We use Jenkins Job Builder by OpenStack
J E N K I N S](https://image.slidesharecdn.com/ansiblemeetup-new-3-150115051656-conversion-gate02/85/CI-CD-Using-Ansible-and-Jenkins-for-Infrastructure-4-320.jpg)
CI/CD Using Ansible and Jenkins for Infrastructure
- 1. Faisal Shaikh Software And Devops Engineer C I / C D U S I N G A N S I B L E A N D J E N K I N S 14th January 2015
- 2. - Continuous Integration (CI) is a development practice that requires developers to inte- grate code into a shared repository several times a day. Each check-in is then verified by an automated build, allowing teams to detect problems early. By integrating regularly, you can detect errors quickly, and locate them more easily. - ThoughtWorks blurb - Continuous integration (CI) is the practice, in software engineering, of merging all devel- oper working copies with a shared mainline several times a day. - Wikipedia D E F I N I T I O N S
- 3. - Every commit pushed to our repo should result in our entire infrastructure being verified. - Tools: - Ansible - Jenkins - Monitoring system - Application tests written by developers can be useful – especially those that exercise all components of the stack. - Test environments - Version Control System – git - Conventions - An environment maps to a branch within git e.g. origin/integration → integration origin/staging → staging A U T O M AT E D B U I L D
- 4. - Good - Free open-source - Lots of plugins - [1] - Multi-platform support – think iOS, Windows builds. - Easy scale out. - Not so good - GUI – good to start off - Manual setup → Config drift → Build box is now special/golden/indispensable - Difficult to reuse jobs - Painful especially when n(jobs) > ~5 - Updating jobs becomes a nightmare - Jenkins DSL is available - We use Jenkins Job Builder by OpenStack J E N K I N S
- 5. - Configure jobs in Jenkins using yaml files - Simple templating engine - → variable substitution - → allows reuse of job definitions - Yaml files mean that you can version job definitions - Variable matrix definition - Good job structure means that template re-use is possible which is a big win. J E N K I N S J O B B U I L D E R
- 6. - job-template: name: ‘ansible_{host-env}-{host-group}’ project-type: freestyle defaults: global scm: - git: url: ‘{git-repo-name}’ branches: - ‘origin/{branch_name}’ credentials-id: ‘{credential_id}’ builders: - shell: | ansible-playbook -i hosts -e “hosts={hostenv} -{host-group}” --private-key=~/.ssh/id_rsa -u buildserver node-{host-group}.yml wrappers: - ansicolor: colormap: xterm publishers: - email: recipients: ‘{devops-email}’ send-to-individuals: true - project: name: ‘ansible repo’ devops-email: ‘devops@example.com’ git-repo-name: git@github.com:mygithubaccount/myrepo branch_name: - ‘integration’: host-env: ‘uat’ - ‘staging’: host-env: ‘stg’ - ‘master’: host-env: ‘prod’ host-group: - api - cache - db - web jobs: - ‘ansible_{branch_name}_{host-group}’ J E N K I N S J O B B U I L D E R
- 7. - Quick demo showing jenkins and ansible
- 8. - 1. Jenkins plugins - https://wiki.jenkins-ci.org/display/JENKINS/Plugins - 2. Jenkins Job Builder by OpenStack - https://github.com/openstack-infra/jenkins-job-builder - http://ci.openstack.org/jenkins-job-builder/ R E F E R E N C E S
- 9. Thank you! We are hiring DevOps, Developers and QAs
- 10. Faisal Shaikh Software And Devops Engineer C I / C D U S I N G A N S I B L E A N D J E N K I N S 14th January 2015