'Jenkins' user is not created on OS X install

Jenkins installed via Homebrew is kind of a mess - and I say this because it isn't terribly obvious in the log output where/who gets permissions.

Jenkins DOES NOT create a jenkins user on Mac OS (nor should it ever, imo).

By default, the user that was actively using brew install jenkins is the one who will get the default permissions. There should be a /.jenkins folder within that users home folder (ex: /Users/<your_user>/.jenkins)

The problem is that when brew finishes running, some files that should get symlinked to the active user don't - so you might create a job using rvm/ruby for example, and get errors that bundler can't write to the system ruby.

Try this in terminal/iTerm:

sudo chown whoami /Library/LaunchDaemons/homebrew.mxcl.jenkins.plist

also whoami should be surrounded by ticks `

I tend to just do these commands after a brew install jenkins

ln -sfv /usr/local/opt/jenkins/*.plist ~/Library/LaunchAgents

Symlink the Jenkins plist files to /Library/LaunchAgents

sudo cp -fv /usr/local/opt/jenkins/*.plist /Library/LaunchDaemons

Copy plist files to /Library/LaunchDaemons

sudo chownwhoami/Library/LaunchDaemons/homebrew.mxcl.jenkins.plist

Give sudo ownership of the plist file listed to the user outright

This part isn't necessary...

launchctl unload ~/Library/LaunchAgents/homebrew.mxcl.jenkins.plist

launchctl load ~/Library/LaunchAgents/homebrew.mxcl.jenkins.plist

Here's something to refer to:

http://flummox-engineering.blogspot.com/2016/01/installing-jenkins-os-x-homebrew.html