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4.2.2. Automatically Loading RPM Files into the Proxy Cache
Populating the initial clone may be convenient and fast through a channel export or directory that contains RPM files, but it is inconvenient to have to create a new channel export or directory containing new RPM files every time the Satellite server is updated with new content. You can set up a cron job or similar with an
rsync command to download any updated RPM files to the Proxy cache. This assumes that you want to download all of the RPM files on the Satellite server to the Proxy. You need to run the cron job and rsync command as root on the Proxy server, but can then log in to the Satellite server as any user that has read access to the RPM store; this should be all users.
Configuring SSH Key Pairs to Enable Automatic Connection to the Satellite
You need to set up SSH key pairs that enable the root user on the Proxy server to establish an SSH connection to $user on the Satellite server, without typing a password.
Important
This method requires that the private key does not have a password. Ensure that you keep this key safe.
Run the following command as
root on the Proxy server:
ssh-keygen -t rsa -N '' -f /root/.ssh/id_dsa \ && cat /root/.ssh/id_dsa.pub | ssh user@satellite.example.com 'cat >> .ssh/authorized_keys'
Enter the password for user when prompted. You should now be able to create an SSH connection to your Satellite server, without typing a password:
# ssh user@satellite.example.com
Setting up Automatic Synchronization
You now need to add a cron job with an appropriate rsync command. For example, as root on the Proxy:
crontab -e 1 3 * * * /usr/bin/rsync -r user@satellite.example.com:/var/satellite/redhat/*/ /var/spool/rhn-proxy/rhn # write and quit with :wq
This configuration runs the
rsync command at 3:01 a.m. every day and downloads any RPM files that are on the Satellite server into the Proxy cache. The /var/satellite directory is the default Satellite root directory, but this is configurable. If you have changed it on your Satellite installation then adjust this command appropriately.
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