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Support memory limits and pam no-login in compute-init #568

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Merged
merged 3 commits into from
Feb 12, 2025
Merged

Support memory limits and pam no-login in compute-init #568

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ba06e41
set locked mem limits on user nodes, configure login access
bertiethorpe Feb 10, 2025
e4e44f8
Merge branch 'main' into feat/compute-init-extras
bertiethorpe Feb 11, 2025
951e98f
reorder compute-init.yml to reflect slurm.yml playbook
bertiethorpe Feb 11, 2025
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21 changes: 21 additions & 0 deletions ansible/roles/compute_init/files/compute-init.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -276,6 +276,27 @@
enabled: true
state: started

- name: Set locked memory limits on user-facing nodes
lineinfile:
path: /etc/security/limits.conf
regexp: '\* soft memlock unlimited'
line: "* soft memlock unlimited"

- name: Configure sshd pam module
blockinfile:
path: /etc/pam.d/sshd
insertafter: 'account\s+required\s+pam_nologin.so'
block: |
account sufficient pam_access.so
account required pam_slurm.so

- name: Configure login access control
blockinfile:
path: /etc/security/access.conf
block: |
+:adm:ALL
-:ALL:ALL

- name: Ensure node is resumed
# TODO: consider if this is always safe for all job states?
command: scontrol update state=resume nodename={{ ansible_hostname }}
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