Use NFS3 as opposed to the default 4 due to user mapping issues

i.e. slurm.conf is nobody:nobody, resulting in root with no read access

ansible/roles/nfs_mounts/tasks/main.yml

@@ -19,11 +19,11 @@
     opts: "{{ item.opts }}"
     state: present
   loop:
-    - { path: /cm/shared, src: "gpfs.rc.uab.edu:/data/cm/shared-8.2", fstype: nfs, opts: "_netdev,defaults" }
-    - { path: /data/project, src: "gpfs.rc.uab.edu:/data/project", fstype: nfs, opts: "_netdev,defaults" }
-    - { path: /data/user, src: "gpfs.rc.uab.edu:/data/user", fstype: nfs, opts: "_netdev,local_lock=posix,defaults" }
+    - { path: /cm/shared, src: "gpfs.rc.uab.edu:/data/cm/shared-8.2", fstype: nfs, opts: "vers=3,_netdev,defaults" }
+    - { path: /data/project, src: "gpfs.rc.uab.edu:/data/project", fstype: nfs, opts: "vers=3,_netdev,defaults" }
+    - { path: /data/user, src: "gpfs.rc.uab.edu:/data/user", fstype: nfs, opts: "vers=3,_netdev,local_lock=posix,defaults" }
     - { path: /home, src: "/data/user/home", fstype: none, opts: bind }
-    - { path: /data/rc/apps, src: "gpfs.rc.uab.edu:/data/rc/apps", fstype: nfs, opts: "_netdev,defaults" }
+    - { path: /data/rc/apps, src: "gpfs.rc.uab.edu:/data/rc/apps", fstype: nfs, opts: "vers=3,_netdev,defaults" }
 - name: Create symbolic links
   ansible.builtin.file:
     src: "{{ item.src }}"