use version as provided by lib apt

rats1

@@ -0,0 +1,54 @@
+series: jammy
+applications:
+  mysql:
+    charm: mysql
+    channel: 8.0/edge
+    revision: 209
+    num_units: 1
+    to:
+    - "0"
+    constraints: arch=amd64
+    storage:
+      database: rootfs,1,1024M
+  slurmd:
+    charm: slurmd
+    channel: edge
+    revision: 81
+    num_units: 1
+    to:
+    - "2"
+    constraints: arch=amd64
+  slurmdbd:
+    charm: slurmdbd
+    channel: edge
+    revision: 51
+    num_units: 1
+    to:
+    - "3"
+    constraints: arch=amd64
+  slurmdbd-mysql-router:
+    charm: mysql-router
+    channel: dpe/edge
+    revision: 136
+  slurmrestd:
+    charm: slurmrestd
+    channel: edge
+    revision: 54
+    num_units: 1
+    to:
+    - "4"
+    constraints: arch=amd64
+machines:
+  "0":
+    constraints: arch=amd64
+  "2":
+    constraints: arch=amd64
+  "3":
+    constraints: arch=amd64
+  "4":
+    constraints: arch=amd64
+relations:
+- - slurmdbd-mysql-router:backend-database
+  - mysql:database
+- - slurmdbd:database
+  - slurmdbd-mysql-router:database

src/charm.py

@@ -224,7 +224,7 @@ def _on_show_current_config(self, event):
 
     def _on_install(self, event):
         """Perform installation operations for slurmctld."""
-        self.unit.set_workload_version(Path("version").read_text().strip())
+        self.unit.set_workload_version(self._slurm_manager.version())
 
         self.unit.status = WaitingStatus("Installing slurmctld")
 

src/slurmctld_ops.py

@@ -490,7 +490,7 @@ def _slurm_plugin_dir(self) -> Path:
     def _mail_prog(self) -> Path:
         return Path("/usr/bin/mail.mailutils")
 
-    def slurm_version(self) -> str:
+    def version(self) -> str:
         """Return slurm version."""
         return Slurmctld().version()