interface-names: T3871: 'migrate' component string syntax as needed

With the rewrite of vyatta_net_name to Python using ConfigTree, one
runs into the change in the syntax of the component version string when
updating 1.2 --> 1.3/1.4, since the udev rule is run before the
migration of the config file; add an explicit 'virtual' migration on
configtree error.

1 files changed, 13 insertions, 1 deletions

diff --git a/src/helpers/vyos_net_name b/src/helpers/vyos_net_name
index 13fb9e31f..e21d8c9ff 100755
--- a/src/helpers/vyos_net_name
+++ b/src/helpers/vyos_net_name
@@ -144,7 +144,19 @@ def get_configfile_interfaces() -> dict:
         logging.critical(f"OSError {e}")
         exit(1)
 
-    config = ConfigTree(config_file)
+    try:
+        config = ConfigTree(config_file)
+    except Exception:
+        logging.debug(f"updating component version string syntax")
+        try:
+            # this will update the component version string in place, for
+            # updates 1.2 --> 1.3/1.4
+            os.system(f'/usr/libexec/vyos/run-config-migration.py {config_path} --virtual --set-vintage=vyos')
+            with open(config_path) as f:
+                config_file = f.read()
+            config = ConfigTree(config_file)
+        except Exception as e:
+            logging.critical(f"ConfigTree error: {e}")
 
     base = ['interfaces', 'ethernet']
     if config.exists(base):