We use Jenkins for our rails projects and are moving to a master-and-slaves setup on EC2, where a small master spawns slaves as needed. The Amazon EC2 plugin works well - it starts new instances and establishes a slave connection. However, builds that pass on the master fail on the slave.
On the master each project has a JENKINS_HOME/jobs/project_name/workspace directory with a clone of the git project and I can run the tests from the command line in the workspace or by triggering the build in Jenkins. I thought the master would just copy the workspace onto the slave and execute the job there, but it doesn't seem to. At first the slave's project workspace directory was empty. I added the Copy to Slave plugin and set it to copy *, but the rake task still aborts - and the workspace directory only has a few files in it. The guide to setting up slaves (https://wiki.jenkins-ci.org/display/JENKINS/Step+by+step+guide+to+set+up+master+and+slave+machines) seems to focus on getting slaves to run/connect to the master. That part's working fine! Anybody know where I can find documentation on how the master interacts with the slave at the job level? Examples of successful configuration for rails projects in a master/slave configuration? Suggestions? I'm new to Jenkins, so I may be missing something basic. Thanks, acozine
