Jenkins in docker including email credentials

[Wesley Connor]

I am setting up a docker image which will start Jenkins in a known state, this will be deployed to multiple users to run standalone and it will populate its jobs from a dsl script in a separate repository.

By copying the files that I need from a running Jenkins instance I have been able to configure the Dockerfile so it starts with all relevant config set (plugins, configuration, email addresses etc)

However, I am unable to set the credentials for sending mail in the Mail plugin, I have tried importing all secret.key files and including all the files from the secrets directory. 

The problem is when I start up the instance Jenkins detects that there is possibly something wrong and then resets all the encrypted files. I realise that security is a good thing and Jenkins is doing the right thing, however I am fine with the email password being saved as the image will only be used internally.

Does anyone know the files I need to include so that I can preset the password for Jenkins or alternatively a way that i can set the email credentials on the command line, so that I can include it as a step when starting Jenkins, inside the docker image?

Thanks

[Daniel Beck]

https://wiki.jenkins-ci.org/display/JENKINS/Post-initialization+script may be an alternative to copying files around. It'll require some knowledge of Jenkins internals though.

I don't know how far along https://github.com/jenkinsci/system-config-dsl-plugin is, but it may be an alternative to the above in the near(ish) future.

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