Migrating CloudBees Jenkins Platform to CloudBees CI

Migrating a Client Master instance from CloudBees Jenkins Platform to CloudBees CI

Back up your CloudBees Jenkins Platform Client Master instance before starting your migration.
The minimum requirement for such a backup is to save a copy the $JENKINS_HOME directory from your CloudBees Jenkins Platform Client Master instance. If the BUILD_DIRECTORY is outside the $JENKINS_HOME directory, then you must save a copy of this directory as well.

Ensure you have stopped your CloudBees Jenkins Platform Client Master instance.
```
sudo service jenkins stop
```
Install the Client Master for CloudBees CI on traditional platforms.
Create a copy of the jenkins directory (from your old CloudBees Jenkins Platform Client Master installation) for CloudBees CI (named cloudbees-core-cm) and change the ownership of this new directory to the new cloudbees-core-cm user:
```
cd /var/lib/
sudo cp -rf jenkins/* cloudbees-core-cm/
cd cloudbees-core-cm/
sudo chown -R cloudbees-core-cm:cloudbees-core-cm .
```
Start your new CloudBees CI Client Master instance.
```
sudo service cloudbees-core-cm start
```
Uninstall the CloudBees Jenkins Platform Client Master:
- On Ubuntu or Debian.
  sudo apt-get purge jenkins
- On Red Hat, CentOS, Fedora or Amazon Linux 2.
  sudo yum remove jenkins
- On OpenSUSE.
  sudo zypper remove jenkins
( Optional ) If the migration of your Client Master instance to CloudBees CI ran successfully, you can remove the old CloudBees Jenkins Platform Client Master directory:
```
rm -rf /var/lib/jenkins
```

Migrating an Operations Center Instance from CloudBees Jenkins Platform to CloudBees CI

Back up your CloudBees Jenkins Platform Operations Center instance before starting your migration.
The minimum requirement for such a backup is to save a copy the $JENKINS_HOME directory from your CloudBees Jenkins Platform Operations Center instance. If the BUILD_DIRECTORY is outside the $JENKINS_HOME directory, then you must save a copy of this directory as well.

Ensure you have stopped your CloudBees Jenkins Platform Operations Center instance.
```
sudo service jenkins-oc stop
```
Install the Operations Center for CloudBees CI on traditional platforms.
Create a copy of the jenkins-oc directory (from your old CloudBees Jenkins Platform Operations Center installation) for CloudBees CI (named cloudbees-core-oc) and change the ownership of this new directory to the new cloudbees-core-oc user:
```
cd /var/lib/
sudo cp -rf jenkins-oc/* cloudbees-core-oc/
cd cloudbees-core-oc/
sudo chown -R cloudbees-core-oc:cloudbees-core-oc .
```
Start your new CloudBees CI Operations Center instance.
```
sudo service cloudbees-core-oc start
```
Uninstall the CloudBees Jenkins Platform Operations Center:
- On Ubuntu or Debian.
  sudo apt-get purge jenkins-oc
- On Red Hat, CentOS, Fedora or Amazon Linux 2.
  sudo yum remove jenkins-oc
- On OpenSUSE.
  sudo zypper remove jenkins-oc
( Optional ) If the migration of your Operations Center instance to CloudBees CI ran successfully, you can remove the old CloudBees Jenkins Platform Operations Center directory:
```
rm -rf /var/lib/jenkins-oc
```