How to export credentials from one jenkins instance to another?

Question

I am using the credentials plugin in Jenkins to manage credentials for git and database access for my team's builds. I would like to copy the credentials from one jenkins instance to another, independent jenkins instance. How would I go about doing this?

Answer 1

UPDATE: TL;DR Follow the link provided below in a comment by Filip Stachowiak it is the easiest way to do it. In case it doesn't work for you go on reading.

Copying the $HUDSON_HOME/credentials.xml is not the solution because Jenkins encrypts paswords and these can't be decrypted by another instance unless both share a common key.

So, either you use the same encription keys in both Jenkins instances (Where's the encryption key stored in Jenkins? ) or what you can do is:

1. Create the same user/password, you need to share, in the 2nd Jenkins instance so that a valid password is generated

2. What is really important is that user ids in both credentials.xml are the same. For that (see the credentials.xml example below) for user: Jenkins the identifier <id>c4855f57-5107-4b69-97fd-298e56a9977d</id> must be the same in both credentials.xml

   <com.cloudbees.plugins.credentials.SystemCredentialsProvider plugin="[email protected]">   <domainCredentialsMap class="hudson.util.CopyOnWriteMap$Hash">     <entry>       <com.cloudbees.plugins.credentials.domains.Domain>         <specifications/>       </com.cloudbees.plugins.credentials.domains.Domain>       <java.util.concurrent.CopyOnWriteArrayList>                         <com.cloudbees.plugins.credentials.impl.UsernamePasswordCredentialsImpl>           <scope>GLOBAL</scope>           <id>c4855f57-5107-4b69-97fd-298e56a9977d</id>           <description>Para SVN</description>           <username>jenkins</username>           <password>J1ztA2vSXHbm60k5PjLl5jg70ZooSFKF+kRAo08UVts=               </password>                                 </com.cloudbees.plugins.credentials.impl.UsernamePasswordCredentialsImpl>       </java.util.concurrent.CopyOnWriteArrayList>     </entry>   </domainCredentialsMap> </com.cloudbees.plugins.credentials.SystemCredentialsProvider> 

Answer 2

I was also facing the same problem. What worked for me is I copied the credentials.xml, config.xml and the secrets folder from existing jenkins to the new instance. After the restart of jenkins things worked fine.