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-rw-r--r--cloudinit/config/cc_vyos.py4
1 files changed, 3 insertions, 1 deletions
diff --git a/cloudinit/config/cc_vyos.py b/cloudinit/config/cc_vyos.py
index df13db0d..d01f1fc1 100644
--- a/cloudinit/config/cc_vyos.py
+++ b/cloudinit/config/cc_vyos.py
@@ -132,7 +132,9 @@ def set_config_ovf(config, hostname, metadata):
config.set(['service', 'ssh'], replace=True)
config.set(['service', 'ssh', 'port'], value='22', replace=True)
- config.set(['system', 'host-name'], value=hostname, replace=True)
+
+ if hostname != '':
+ config.set(['system', 'host-name'], value=hostname, replace=True)
def handle(name, cfg, cloud, log, _args):