Migrating Jenkins jobs from one server to another

For my build (on a Linux host), I do something like this (as a build step in Jenkins) to execute a build script out of the freshly-checked-out workspace:

Execute shell Command:

 sh -x $WORKSPACE/build/myproject.build

I presume it would work similar on Windows, except of course you would use \ rather than / and you're using python rather than sh to execute your script.

I had the same exact error very recently. I realized after setting security to false in config.xml and manually setting up ldap on the new host that I forgot to import the certificate to the java keystore as we are using ldaps. Here are the steps I took to resolve the problem. For reference, I'm using java-1.7.0-openjdk-1.7.0.65, jenkins v1.568 on Centos 6.5 fully updated.

Stop Jenkins

service jenkins stop

Sync Jenkins home dir (used -I flag to overwrite existing files):

rsync -avI user@old_host:/var/lib/jenkins/* /var/lib/jenkins/

Backup cacerts on the new host:

cp /etc/pki/java/cacerts /some/backup/dir

Copy cacerts from old host to new (or import via keytool if you have other certs on that new host you need to keep):

scp user@old_host:/etc/pki/java/cacerts /etc/pki/java/cacerts

(import method: keytool -import -alias "some-name-for-cert" -keystore cacerts -trustcacerts -file "/path/to/cert.crt")

Start Jenkins

service jenkins start

Unfortunately I don't have enough reputation to comment and recommend importing a cert so please don't be harsh if this doesn't fix it. I signed up here when I came across your error. Hope it helps!