Fix difference issue in Ansible during remove

Author: arnaudfroidmont

playbooks/roles/destroy_unreachable/tasks/slurm-rack-aware.yml

@@ -114,21 +114,21 @@
 
 # - name: debug
 #   debug:
-#     msg: "Replacing line: SwitchName={{upperswitchnames[item]}}\\sSwitches.* with SwitchName={{upperswitchnames[item]}} Switches={{racks_on_switch_dict[item] | difference(switchnames[item]) | join(',') }}"
+#     msg: "Replacing line: SwitchName={{upperswitchnames[item]}}\\sSwitches.* with SwitchName={{upperswitchnames[item]}} Switches={{racks_on_switch_dict[item] | difference([switchnames[item]]) | join(',') }}"
 #   with_items: "{{unreachable_slurm_nodes}}"
-#   when: ( not upperswitchnames[item] is match("inactive-.*") ) and ( ( racks_on_switch_dict[item] | difference(switchnames[item]) | length ) > 0 ) and ( upperswitchnames[item] | length ) > 1 
+#   when: ( not upperswitchnames[item] is match("inactive-.*") ) and ( ( racks_on_switch_dict[item] | difference([switchnames[item]]) | length ) > 0 ) and ( upperswitchnames[item] | length ) > 1 
 #   run_once: true
 #   delegate_to: 127.0.0.1
 
 - name: change upper switch line from topology line
   lineinfile:
     path: "{{ slurm_conf_path }}/topology.conf"
     regexp: "SwitchName={{upperswitchnames[item]}}\\sSwitches.*"
-    line: "SwitchName={{upperswitchnames[item]}} Switches={{racks_on_switch_dict[item] | difference(switchnames[item]) | join(',') }}"
+    line: "SwitchName={{upperswitchnames[item]}} Switches={{racks_on_switch_dict[item] | difference([switchnames[item]]) | join(',') }}"
     state: present
   with_items: "{{unreachable_slurm_nodes}}"
   ignore_errors: yes
-  when: ( not upperswitchnames[item] is match("inactive-.*") ) and ( ( racks_on_switch_dict[item] | difference(switchnames[item]) | length ) > 0 ) and ( upperswitchnames[item] | length ) > 1 and ( nodes_on_switch[item] | length ) < 2 
+  when: ( not upperswitchnames[item] is match("inactive-.*") ) and ( ( racks_on_switch_dict[item] | difference([switchnames[item]]) | length ) > 0 ) and ( upperswitchnames[item] | length ) > 1 and ( nodes_on_switch[item] | length ) < 2 
   run_once: true
   delegate_to: 127.0.0.1
 
@@ -137,7 +137,7 @@
 #     msg: "removing line line: SwitchName={{upperswitchnames[item]}}\\sSwitches.*"
 #   with_items: "{{unreachable_slurm_nodes}}"
 #   ignore_unreachable: yes
-#   when: ( not upperswitchnames[item] is match("inactive-.*") ) and ( ( racks_on_switch_dict[item] | difference(switchnames[item]) | length ) == 0 ) and ( upperswitchnames[item] | length ) > 1
+#   when: ( not upperswitchnames[item] is match("inactive-.*") ) and ( ( racks_on_switch_dict[item] | difference([switchnames[item]]) | length ) == 0 ) and ( upperswitchnames[item] | length ) > 1
 #   run_once: true
 #   delegate_to: 127.0.0.1
 
@@ -148,7 +148,7 @@
     state: absent
   with_items: "{{unreachable_slurm_nodes}}"
   ignore_unreachable: yes
-  when: ( not upperswitchnames[item] is match("inactive-.*") ) and ( ( racks_on_switch_dict[item] | difference(switchnames[item]) | length ) == 0 ) and ( upperswitchnames[item] | length ) > 1 and ( nodes_on_switch[item] | length ) < 2 
+  when: ( not upperswitchnames[item] is match("inactive-.*") ) and ( ( racks_on_switch_dict[item] | difference([switchnames[item]]) | length ) == 0 ) and ( upperswitchnames[item] | length ) > 1 and ( nodes_on_switch[item] | length ) < 2 
   run_once: true
   delegate_to: 127.0.0.1