Jenkins Basics

Transcript

1. Jenkins Basics Kanstantsin Shautsou
2. Versions • Development (‘latest and greatest’) • LTS (Long Time Support) • Custom • Branded
3. Installation • Manual `java -jar jenkins.war` [link] • Windows specific installer • `docker run jenkins` • Linux distros • rpm • deb
4. Items • Job/Project • freestyle (core) • maven (maven-project- plugin) • matrix (matrix-plugin) • multibranch * • pipeline (pipeline-plugin) • pipeline-multibranch (pipeline-multibranch-plugin) • … but why? • View • delivery-pipeline • dashboard • monitoring • … • Folder
5. Freestyle Project Lifecycle • Project Property • SCM (single) • Triggers • Build Wrappers (“Build Environment”) • Builders • Publishers • Recorder • Notifier
6. Scheduling Lifecycle • Run/Build (difference?) • Enter Queue • Queue Decision • wait • provision • merge • Exit Queue • Execute
7. Plugins • Extension Points (automation framework) • Jobs • Views • Triggers • Listeners • Queue • Action (special) • ….
8. Jenkins lifecycle • Start servlet • Load plugins • Initialize plugins • Post initialization – init.groovy.d hook. Puppet, chef using for configuration. • User opens browser • In-memory load – Items – Usually all latest builds
9. Debug • Logging • Script console • “Magic” system properties [link] • `java -Xdebug` & IDE & breakpoints
10. Security • Authentication: ldap, AD, etc • Authorization: Role Strategy, matrix, project- based, etc • Credentials (plugin) – store all credentials in it. No text field input forms!
11. Master - Slave • Communications • SSH (master connects to slave). Require auth in slave. • JNLP (slave connects to master). Require reachable master.