From c68d73e6720a7df2b48df17ac7b9b4c906e0294c Mon Sep 17 00:00:00 2001
From: Viacheslav Hletenko <v.gletenko@vyos.io>
Date: Tue, 28 Feb 2023 14:25:39 +0000
Subject: T4967: Allow setting container hostname

Ability setting container hostname
This host name is used as /etc/hostname

  set container name <tag> host-name 'mybox'
---
 interface-definitions/container.xml.in |  9 +++++++++
 src/conf_mode/container.py             | 12 +++++++++++-
 2 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/interface-definitions/container.xml.in b/interface-definitions/container.xml.in
index 2ea1e6ab2..0e5fdea78 100644
--- a/interface-definitions/container.xml.in
+++ b/interface-definitions/container.xml.in
@@ -113,6 +113,15 @@
               <constraintErrorMessage>Entrypoint must be ascii characters, use &amp;quot; and &amp;apos for double and single quotes respectively</constraintErrorMessage>
             </properties>
           </leafNode>
+          <leafNode name="host-name">
+            <properties>
+              <help>Container host name</help>
+              <constraint>
+                <regex>[A-Za-z0-9][-.A-Za-z0-9]*[A-Za-z0-9]</regex>
+              </constraint>
+              <constraintErrorMessage>Host-name must be alphanumeric and can contain hyphens</constraintErrorMessage>
+            </properties>
+          </leafNode>
           <leafNode name="image">
             <properties>
               <help>Image name in the hub-registry</help>
diff --git a/src/conf_mode/container.py b/src/conf_mode/container.py
index 4f93c93a1..10e9e9213 100755
--- a/src/conf_mode/container.py
+++ b/src/conf_mode/container.py
@@ -256,6 +256,11 @@ def generate_run_arguments(name, container_config):
         for k, v in container_config['environment'].items():
             env_opt += f" --env \"{k}={v['value']}\""
 
+    hostname = ''
+    if 'host_name' in container_config:
+        hostname = container_config['host_name']
+        hostname = f'--hostname {hostname}'
+
     # Publish ports
     port = ''
     if 'port' in container_config:
@@ -277,7 +282,7 @@ def generate_run_arguments(name, container_config):
 
     container_base_cmd = f'--detach --interactive --tty --replace {cap_add} ' \
                          f'--memory {memory}m --shm-size {shared_memory}m --memory-swap 0 --restart {restart} ' \
-                         f'--name {name} {device} {port} {volume} {env_opt}'
+                         f'--name {name} {hostname} {device} {port} {volume} {env_opt}'
 
     entrypoint = ''
     if 'entrypoint' in container_config:
@@ -285,6 +290,11 @@ def generate_run_arguments(name, container_config):
         entrypoint = json_write(container_config['entrypoint'].split()).replace('"', "&quot;")
         entrypoint = f'--entrypoint &apos;{entrypoint}&apos;'
 
+    hostname = ''
+    if 'host_name' in container_config:
+        hostname = container_config['host_name']
+        hostname = f'--hostname {hostname}'
+
     command = ''
     if 'command' in container_config:
         command = container_config['command'].strip()
-- 
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