subcommand "net-up"

src/kiwi/subcommands/__init__.py

@@ -2,6 +2,7 @@
 from .cmd import CmdCommand
 from .init import InitCommand
 from .logs import LogsCommand
+from .net_up import NetUpCommand
 from .sh import ShCommand
 from .show import ShowCommand
 
@@ -9,6 +10,7 @@ __all__ = [
     'CmdCommand',
     'InitCommand',
     'LogsCommand',
+    'NetUpCommand',
     'ShCommand',
     'ShowCommand',
 ]

src/kiwi/subcommands/net_up.py

@@ -0,0 +1,46 @@
+# system
+import logging
+import subprocess
+
+# local
+from ._subcommand import SubCommand
+from .utils.dockercommand import DockerCommand
+
+
+class NetUpCommand(SubCommand):
+    """kiwi net-up"""
+
+    def __init__(self):
+        super().__init__(
+            'net-up',
+            description="Create the local network hub for this instance"
+        )
+
+    def run(self, runner, config, args):
+        ps = DockerCommand('docker').run(
+            config, args, ['network', 'ls', '--filter', f"name={config['network:name']}", '--format', '{{.Name}}'],
+            stdout=subprocess.PIPE
+        )
+
+        net_found = str(ps.stdout, 'utf-8').strip()
+
+        if net_found == config['network:name']:
+            logging.info(f"Network '{config['network:name']}' already exists")
+            return
+
+        try:
+            DockerCommand('docker').run(
+                config, args,
+                [
+                    'network', 'create',
+                    '--driver', 'bridge',
+                    '--internal',
+                    '--subnet', config['network:cidr'],
+                    config['network:name']
+                ],
+                check=True, stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL
+            )
+            logging.info(f"Network '{config['network:name']}' created")
+
+        except subprocess.CalledProcessError:
+            logging.error(f"Error creating network '{config['network:name']}'")