*** These changes must be run on lh-build.arc-ts.umich.edu ***

*** Any changes made must be pushed to the rest of the cluster using: sudo /usr/arcts/systems/scripts/ansibleSync.sh ***

1) Run this command to create a login for a specified user on the operating system:

• sudo /usr/arcts/systems/scripts/addLinuxUser.sh <user>

*** You can comma delimitate users. See below ***

• sudo /usr/arcts/systems/scripts/addLinuxUser.sh <user1>,<user2>,<user3>

2) Check to see if the user belongs to any Slurm Accounts.  If they do, create their scratch directories for those accounts.

• my_accounts <user>
• sudo /usr/arcts/systems/scripts/addScratch -a <slurm_account> -u <user>

3) Run ansible sync to push the changes to /etc/passwd and /etc/group out to all the compute nodes:

• sudo /usr/arcts/systems/scripts/ansibleSync.sh

4) Add the user to the MCommunity group hpc-users-lighthouse.  This is necessary because it allows them to access Open On Demand (lighthouse.arc-ts.umich.edu in a web browser)

*** This will create a placeholder for a user that does not have a user login on Lighthouse ***

1) Run this command to add a specified user to a specified Slurm Account:

• sudo /usr/arcts/systems/scripts/addSlurmUser.sh -u <user> -a <slurm_account>

*** Note: Make sure the user's default Slurm Account is NOT the one you're removing them from ***

****** Change user's default Slurm account: ***sudo /opt/slurm/bin/sacctmgr modify user <user> set DefaultAccount=<slurm_account> where cluster=greatlakes ***  (systems will have to run this)

1. Run this  command to remove a specified user from a specified Slurm Account:

• sudo /usr/arcts/systems/scripts/delSlurmUser.sh -u <user> -a <slurm_account>

*** If the above command for some reason fails, the user can be removed with 'sacctmgr' ***

*** Cluster must be defined, otherwise the user will be removed from the Slurm Account but not in the database (not entirely removed). Systems will need to run this***

• sudo /opt/slurm/bin/sacctmgr remove user <user> cluster=greatlakes account=<slurm_account>

2. Remove the user from the scratch directory for the account you took them out of

• sudo /usr/bin/gpasswd -d $u <account>_root

3. Run sudo /usr/arcts/systems/scripts/ansibleSync.sh

1) Specific Slurm Account:

• sudo /usr/arcts/systems/scripts/addScratch.sh -a <slurm_account>

2) Specific user under specific Slurm Account

• sudo /usr/arcts/systems/scripts/addScratch.sh -a <slurm_account> -u <user>

3) Specific user

• sudo /usr/arcts/systems/scripts/addScratch.sh -u <user> *** NOT WORKING YET ***