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-rw-r--r--openstack-network.configure12
1 files changed, 12 insertions, 0 deletions
diff --git a/openstack-network.configure b/openstack-network.configure
index 7f2a08cc..f776f058 100644
--- a/openstack-network.configure
+++ b/openstack-network.configure
@@ -24,3 +24,15 @@ ln -sf "/usr/lib/systemd/system/openvswitch-setup.service" \
ln -sf "/usr/lib/systemd/system/openstack-network-setup.service" \
"$ROOT/etc/systemd/system/multi-user.target.wants/openstack-network-setup.service"
+
+python <<'EOF' >"$ROOT/etc/openstack/network.conf"
+import os, sys, yaml
+
+network_configuration = {}
+
+optional_keys = ('EXTERNAL_INTERFACE',)
+
+network_configuration.update((k, os.environ[k]) for k in optional_keys if k in os.environ)
+
+yaml.dump(network_configuration, sys.stdout, default_flow_style=False)
+EOF