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services:cobbler [2017/03/28 21:42] – dgallowayservices:cobbler [2022/11/22 11:49] (current) – akraitman
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 ====== Cobbler ====== ====== Cobbler ======
 ===== Summary ===== ===== Summary =====
-[[https://cobbler.github.io/|Cobbler]] is used to reimage testnodes in the lab.  The Cobbler host is ''cobbler.front.sepia.ceph.com'' and is managed by Ansible.  It's a VM in [[services:RHEV]].+[[https://cobbler.github.io/|Cobbler]] is used to reimage testnodes in the lab.  The Cobbler host is ''cobbler.front.sepia.ceph.com'' and is managed by Ansible.  It's a bare metal machine that used to be mira065.
  
 Access the Web UI at https://cobbler.front.sepia.ceph.com/cobbler_web/ Access the Web UI at https://cobbler.front.sepia.ceph.com/cobbler_web/
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 ===== Creating a new user for Web UI access ===== ===== Creating a new user for Web UI access =====
-  - Generate a random password (''mkpasswd -l 12'') +  - In the ''ceph-cm-ansible'' repo, there is a ''tools/cobbler-access.sh'' script.  Run it. 
-  - Generate the hashed password (''%%htdigest -c /tmp/users.digest "Cobbler" $username%%'') +  - Create a new branch named ''wip-username'' in the ''ceph-sepia-secrets'' repo 
-    - Paste the generated password when prompted +  - Paste the output under ''%%------ String for cobbler.yml ------%%'' into a new line in ''ansible/inventory/group_vars/cobbler.yml'' under ''users_digest_lines'' 
-  - Create a new branch named ''wip-username'' in the secrets repo +  - git commit, git push the branch, and create a Pull Request
-  - Paste the output of ''cat /tmp/users.digest'' into a new line in ''ansible/inventory/group_vars/cobbler.yml'' under ''users_digest_lines'' +
-  - git commit, git push the branch, and create a PR+
   - ''%%ansible-playbook cobbler.yml --tags="settings"%%''   - ''%%ansible-playbook cobbler.yml --tags="settings"%%''
  
 <code> <code>
 # Example # Example
-$ mkpasswd -l 12 +$ ~/git/ceph/ceph-cm-ansible/tools/cobbler-access.sh  
-b39feiiSiuQ%+Enter username: bob
  
-$ htdigest -c /tmp/users.digest "Cobbler" bob +------ String for cobbler.yml ------ 
-Adding password for bob in realm Cobbler. +bob:Cobbler:07a95ca759fd46e9416de672a5e2bb60
-New password:  +
-Re-type new password: +
  
-$ cat /tmp/users.digest  
-bob:Cobbler:027abc2039e7495f72128d9c3c628686 
  
 # Add the user to the cobbler.yml secrets group_vars file # Add the user to the cobbler.yml secrets group_vars file
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   - "vasu:Cobbler:XXXXX"   - "vasu:Cobbler:XXXXX"
   - "dmick:Cobbler:XXXXX"   - "dmick:Cobbler:XXXXX"
-+ - "bob:Cobbler:027abc2039e7495f72128d9c3c628686"++ - "bob:Cobbler:07a95ca759fd46e9416de672a5e2bb60"
 </code> </code>
  
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     - Set **Parent Profile** to ''$NEW_DISTRO_NAME''     - Set **Parent Profile** to ''$NEW_DISTRO_NAME''
     - **Save**     - **Save**
 +
 +==== RHEL in Sepia ====
 +Because RHEL ISOs are only available inside the Red Hat firewall, we can't add an ''http'' URL to the secrets repo.  To add a RHEL version:
 +
 +  - Find the ISO hosted inside the Red Hat firewall and download it
 +  - Once downloaded, ''scp'' the ISO to ''cobbler.front.sepia.ceph.com:/iso''
 +  - In the ceph-sepia-secrets repo, set the appropriate ''%%file:///iso/path%%''
 +
 +==== Error adding brand new distro ====
 +Cobbler keeps a list of supported distros in ''/var/lib/cobbler/distro_signatures.json'' so it knows what defaults to apply to a distro/profile.
 +
 +If a distro is brand-spankin' new, you may get an error like "No signature matched in /var/www/cobbler/ks_mirror/Ubuntu-17.10-server-x86_64".
 +
 +First try running ''cobbler signature update''.  If it still doesn't show up in ''cobbler signature report'', you'll have to manually add an entry in the JSON.
 +
 +  - Edit ''/var/lib/cobbler/distro_signatures.json''
 +  - ''service cobblerd restart''
 +
 +===== Re-importing a Distro =====
 +This would typically be done if a newer ISO (minor revision) of an OS is released.  For example: if you wanted to import Ubuntu 16.04.3 in place of the original 16.04 image.
 +
 +  - First, you need to make sure no machines in Cobbler are set to use the distro you plan to replace
 +    - ssh to the Cobbler host
 +    - Set the profile for each machine using the distro you wish to replace with something else <code>
 +# Example:
 +for host in $(cobbler system find --profile Ubuntu-16.04-server-x86_64); do cobbler system edit --name=$host --profile inktank-rescue; done
 +</code>
 +      - You may wish to ''cat'' these hosts to a file so you can set the profile back after <code>
 +cobbler system find --profile Ubuntu-16.04-server-x86_64 > currently_xenial.dgalloway
 +for host in $(cat currently_xenial.dgalloway); do cobbler system edit --name=$host --profile inktank-rescue; done
 +# Reimport distro
 +for host in $(cat currently_xenial.dgalloway); do cobbler system edit --name=$host --profile Ubuntu-16.04-server-x86_64; done
 +rm currently_xenial.dgalloway
 +</code>
 +  - Delete all associated profiles under the **Profiles** tab in the Cobbler web UI
 +  - Delete the distro from **Distros** in the web UI
 +  - Proceed with [[services:cobbler#adding_a_new_distro|Re-adding the distro]]
services/cobbler.1490737340.txt.gz · Last modified: by dgalloway