WIP: fix munge key for molecule

Author: sjpb

README.md

@@ -42,7 +42,7 @@ each list element:
 
 Note slurm's ["configless" mode](https://slurm.schedmd.com/configless_slurm.html) is always used.
 
-`openhpc_munge_key`: Required. Define a munge key to use.
+`openhpc_munge_key`: Required. A munge key to use.
 
 `openhpc_login_only_nodes`: Optional. The name of an ansible inventory group containing nodes which are login nodes (i.e. not also control nodes). These nodes must have `openhpc_enable.batch: true` and will run `slurmd` to contact the control node for config.
 
@@ -150,6 +150,7 @@ The following playbook deploys control, login and compute nodes with a customise
     openhpc_slurm_partitions:
       - name: "compute"
     openhpc_cluster_name: openhpc
+    openhpc_munge_key: "{{ my_secret_blob }}"
     openhpc_slurm_conf_overrides: |
       SlurmctldDebug=debug
       SlurmdDebug=debug

molecule/test1/converge.yml

@@ -11,6 +11,14 @@
       - name: "compute"
     openhpc_cluster_name: testohpc
   tasks:
+    - name: Get package-generated munge key
+      slurp:
+        src: /etc/munge/munge.key
+      register: _munge_key
+      when: inventory_hostname == 'testohpc-login-0'
+    - name: Set fact for munge key
+      set_fact:
+        openhpc_munge_key: "{{ hostvars['testohpc-login-0']._munge_key.content | b64decode }}"
     - name: "Include ansible-role-openhpc"
       include_role:
         name: "{{ lookup('env', 'MOLECULE_PROJECT_DIRECTORY') | basename }}"

molecule/test2/converge.yml

@@ -12,6 +12,14 @@
       - name: "part2"
     openhpc_cluster_name: testohpc
   tasks:
+    - name: Get package-generated munge key
+      slurp:
+        src: /etc/munge/munge.key
+      register: _munge_key
+      when: inventory_hostname == 'testohpc-login-0'
+    - name: Set fact for munge key
+      set_fact:
+        openhpc_munge_key: "{{ hostvars['testohpc-login-0']._munge_key.content | b64decode }}"
     - name: "Include ansible-role-openhpc"
       include_role:
         name: "{{ lookup('env', 'MOLECULE_PROJECT_DIRECTORY') | basename }}"

molecule/test3/converge.yml

@@ -14,6 +14,14 @@
         - name: "grp2"
     openhpc_cluster_name: testohpc
   tasks:
+    - name: Get package-generated munge key
+      slurp:
+        src: /etc/munge/munge.key
+      register: _munge_key
+      when: inventory_hostname == 'testohpc-login-0'
+    - name: Set fact for munge key
+      set_fact:
+        openhpc_munge_key: "{{ hostvars['testohpc-login-0']._munge_key.content | b64decode }}"
     - name: "Include ansible-role-openhpc"
       include_role:
         name: "{{ lookup('env', 'MOLECULE_PROJECT_DIRECTORY') | basename }}"

molecule/test4/converge.yml

@@ -15,6 +15,14 @@
       - name: "compute"
     openhpc_cluster_name: testohpc
   tasks:
+    - name: Get package-generated munge key
+      slurp:
+        src: /etc/munge/munge.key
+      register: _munge_key
+      when: inventory_hostname == 'testohpc-login-0'
+    - name: Set fact for munge key
+      set_fact:
+        openhpc_munge_key: "{{ hostvars['testohpc-login-0']._munge_key.content | b64decode }}"
     - name: "Include ansible-role-openhpc"
       include_role:
         name: "{{ lookup('env', 'MOLECULE_PROJECT_DIRECTORY') | basename }}"

molecule/test5/converge.yml

@@ -12,6 +12,14 @@
     openhpc_cluster_name: testohpc
     openhpc_slurm_configless: true
   tasks:
+    - name: Get package-generated munge key
+      slurp:
+        src: /etc/munge/munge.key
+      register: _munge_key
+      when: inventory_hostname == 'testohpc-login-0'
+    - name: Set fact for munge key
+      set_fact:
+        openhpc_munge_key: "{{ hostvars['testohpc-login-0']._munge_key.content | b64decode }}"
     - name: "Include ansible-role-openhpc"
       include_role:
         name: "{{ lookup('env', 'MOLECULE_PROJECT_DIRECTORY') | basename }}"

molecule/test6/converge.yml

@@ -11,6 +11,14 @@
     openhpc_cluster_name: testohpc
     openhpc_slurm_configless: true
   tasks:
+    - name: Get package-generated munge key
+      slurp:
+        src: /etc/munge/munge.key
+      register: _munge_key
+      when: inventory_hostname == 'testohpc-login-0'
+    - name: Set fact for munge key
+      set_fact:
+        openhpc_munge_key: "{{ hostvars['testohpc-login-0']._munge_key.content | b64decode }}"
     - name: "Include ansible-role-openhpc"
       include_role:
         name: "{{ lookup('env', 'MOLECULE_PROJECT_DIRECTORY') | basename }}"

molecule/test8/converge.yml

@@ -13,6 +13,14 @@
     openhpc_slurm_configless: true
     openhpc_login_only_nodes: 'testohpc_login'
   tasks:
+    - name: Get package-generated munge key
+      slurp:
+        src: /etc/munge/munge.key
+      register: _munge_key
+      when: inventory_hostname == 'testohpc-control'
+    - name: Set fact for munge key
+      set_fact:
+        openhpc_munge_key: "{{ hostvars['testohpc-control']._munge_key.content | b64decode }}"
     - name: "Include ansible-role-openhpc"
       include_role:
         name: "{{ lookup('env', 'MOLECULE_PROJECT_DIRECTORY') | basename }}"