diff options
| -rw-r--r-- | data/templates/container/systemd-unit.j2 | 17 | ||||
| -rwxr-xr-x[-rw-r--r--] | smoketest/scripts/cli/test_container.py | 44 | ||||
| -rwxr-xr-x | src/conf_mode/container.py | 172 |
3 files changed, 146 insertions, 87 deletions
diff --git a/data/templates/container/systemd-unit.j2 b/data/templates/container/systemd-unit.j2 new file mode 100644 index 000000000..fa48384ab --- /dev/null +++ b/data/templates/container/systemd-unit.j2 @@ -0,0 +1,17 @@ +### Autogenerated by container.py ### +[Unit] +Description=VyOS Container {{ name }} + +[Service] +Environment=PODMAN_SYSTEMD_UNIT=%n +Restart=on-failure +ExecStartPre=/bin/rm -f %t/%n.pid %t/%n.cid +ExecStart=/usr/bin/podman run \ + --conmon-pidfile %t/%n.pid --cidfile %t/%n.cid --cgroups=no-conmon \ + {{ run_args }} +ExecStop=/usr/bin/podman stop --ignore --cidfile %t/%n.cid -t 5 +ExecStopPost=/usr/bin/podman rm --ignore -f --cidfile %t/%n.cid +ExecStopPost=/bin/rm -f %t/%n.cid +PIDFile=%t/%n.pid +KillMode=none +Type=forking diff --git a/smoketest/scripts/cli/test_container.py b/smoketest/scripts/cli/test_container.py index cc0cdaec0..b9d308ae1 100644..100755 --- a/smoketest/scripts/cli/test_container.py +++ b/smoketest/scripts/cli/test_container.py @@ -15,6 +15,7 @@ # along with this program. If not, see <http://www.gnu.org/licenses/>. import unittest +import glob import json from base_vyostest_shim import VyOSUnitTestSHIM @@ -25,10 +26,13 @@ from vyos.util import process_named_running from vyos.util import read_file base_path = ['container'] -cont_image = 'busybox' +cont_image = 'busybox:stable' # busybox is included in vyos-build prefix = '192.168.205.0/24' net_name = 'NET01' -PROCESS_NAME = 'podman' +PROCESS_NAME = 'conmon' +PROCESS_PIDFILE = '/run/vyos-container-{0}.service.pid' + +busybox_image_path = '/usr/share/vyos/busybox-stable.tar' def cmd_to_json(command): c = cmd(command + ' --format=json') @@ -37,7 +41,31 @@ def cmd_to_json(command): return data -class TesContainer(VyOSUnitTestSHIM.TestCase): +class TestContainer(VyOSUnitTestSHIM.TestCase): + @classmethod + def setUpClass(cls): + super(TestContainer, cls).setUpClass() + + # Load image for smoketest provided in vyos-build + cmd(f'cat {busybox_image_path} | sudo podman load') + + @classmethod + def tearDownClass(cls): + super(TestContainer, cls).tearDownClass() + + # Cleanup podman image + cmd(f'sudo podman image rm -f {cont_image}') + + def tearDown(self): + self.cli_delete(base_path) + self.cli_commit() + + # Ensure no container process remains + self.assertIsNone(process_named_running(PROCESS_NAME)) + + # Ensure systemd units are removed + units = glob.glob('/run/systemd/system/vyos-container-*') + self.assertEqual(units, []) def test_01_basic_container(self): cont_name = 'c1' @@ -53,13 +81,17 @@ class TesContainer(VyOSUnitTestSHIM.TestCase): # commit changes self.cli_commit() + pid = 0 + with open(PROCESS_PIDFILE.format(cont_name), 'r') as f: + pid = int(f.read()) + # Check for running process - self.assertTrue(process_named_running(PROCESS_NAME)) + self.assertEqual(process_named_running(PROCESS_NAME), pid) def test_02_container_network(self): cont_name = 'c2' cont_ip = '192.168.205.25' - self.cli_set(base_path + ['network', net_name, 'ipv4-prefix', prefix]) + self.cli_set(base_path + ['network', net_name, 'prefix', prefix]) self.cli_set(base_path + ['name', cont_name, 'image', cont_image]) self.cli_set(base_path + ['name', cont_name, 'network', net_name, 'address', cont_ip]) @@ -67,7 +99,7 @@ class TesContainer(VyOSUnitTestSHIM.TestCase): self.cli_commit() n = cmd_to_json(f'sudo podman network inspect {net_name}') - json_subnet = n['plugins'][0]['ipam']['ranges'][0][0]['subnet'] + json_subnet = n['subnets'][0]['subnet'] c = cmd_to_json(f'sudo podman container inspect {cont_name}') json_ip = c['NetworkSettings']['Networks'][net_name]['IPAddress'] diff --git a/src/conf_mode/container.py b/src/conf_mode/container.py index ac3dc536b..70d149f0d 100755 --- a/src/conf_mode/container.py +++ b/src/conf_mode/container.py @@ -40,20 +40,7 @@ airbag.enable() config_containers_registry = '/etc/containers/registries.conf' config_containers_storage = '/etc/containers/storage.conf' - -def _run_rerun(container_cmd): - counter = 0 - while True: - if counter >= 10: - break - try: - _cmd(container_cmd) - break - except: - counter = counter +1 - sleep(0.5) - - return None +systemd_unit_path = '/run/systemd/system' def _cmd(command): if os.path.exists('/tmp/vyos.container.debug'): @@ -122,7 +109,7 @@ def verify(container): # of image upgrade and deletion. image = container_config['image'] if run(f'podman image exists {image}') != 0: - Warning(f'Image "{image}" used in contianer "{name}" does not exist '\ + Warning(f'Image "{image}" used in container "{name}" does not exist '\ f'locally. Please use "add container image {image}" to add it '\ f'to the system! Container "{name}" will not be started!') @@ -136,9 +123,6 @@ def verify(container): raise ConfigError(f'Container network "{network_name}" does not exist!') if 'address' in container_config['network'][network_name]: - if 'network' not in container_config: - raise ConfigError(f'Can not use "address" without "network" for container "{name}"!') - address = container_config['network'][network_name]['address'] network = None if is_ipv4(address): @@ -220,6 +204,71 @@ def verify(container): return None +def generate_run_arguments(name, container_config): + image = container_config['image'] + memory = container_config['memory'] + restart = container_config['restart'] + + # Add capability options. Should be in uppercase + cap_add = '' + if 'cap_add' in container_config: + for c in container_config['cap_add']: + c = c.upper() + c = c.replace('-', '_') + cap_add += f' --cap-add={c}' + + # Add a host device to the container /dev/x:/dev/x + device = '' + if 'device' in container_config: + for dev, dev_config in container_config['device'].items(): + source_dev = dev_config['source'] + dest_dev = dev_config['destination'] + device += f' --device={source_dev}:{dest_dev}' + + # Check/set environment options "-e foo=bar" + env_opt = '' + if 'environment' in container_config: + for k, v in container_config['environment'].items(): + env_opt += f" -e \"{k}={v['value']}\"" + + # Publish ports + port = '' + if 'port' in container_config: + protocol = '' + for portmap in container_config['port']: + if 'protocol' in container_config['port'][portmap]: + protocol = container_config['port'][portmap]['protocol'] + protocol = f'/{protocol}' + else: + protocol = '/tcp' + sport = container_config['port'][portmap]['source'] + dport = container_config['port'][portmap]['destination'] + port += f' -p {sport}:{dport}{protocol}' + + # Bind volume + volume = '' + if 'volume' in container_config: + for vol, vol_config in container_config['volume'].items(): + svol = vol_config['source'] + dvol = vol_config['destination'] + volume += f' -v {svol}:{dvol}' + + container_base_cmd = f'--detach --interactive --tty --replace {cap_add} ' \ + f'--memory {memory}m --memory-swap 0 --restart {restart} ' \ + f'--name {name} {device} {port} {volume} {env_opt}' + + if 'allow_host_networks' in container_config: + return f'{container_base_cmd} --net host {image}' + + ip_param = '' + networks = ",".join(container_config['network']) + for network in container_config['network']: + if 'address' in container_config['network'][network]: + address = container_config['network'][network]['address'] + ip_param = f'--ip {address}' + + return f'{container_base_cmd} --net {networks} {ip_param} {image}' + def generate(container): # bail out early - looks like removal from running config if not container: @@ -263,6 +312,15 @@ def generate(container): render(config_containers_registry, 'container/registries.conf.j2', container) render(config_containers_storage, 'container/storage.conf.j2', container) + if 'name' in container: + for name, container_config in container['name'].items(): + if 'disable' in container_config: + continue + + file_path = os.path.join(systemd_unit_path, f'vyos-container-{name}.service') + run_args = generate_run_arguments(name, container_config) + render(file_path, 'container/systemd-unit.j2', {'name': name, 'run_args': run_args}) + return None def apply(container): @@ -270,8 +328,12 @@ def apply(container): # Option "--force" allows to delete containers with any status if 'container_remove' in container: for name in container['container_remove']: - call(f'podman stop --time 3 {name}') - call(f'podman rm --force {name}') + file_path = os.path.join(systemd_unit_path, f'vyos-container-{name}.service') + call(f'systemctl stop vyos-container-{name}.service') + if os.path.exists(file_path): + os.unlink(file_path) + + call('systemctl daemon-reload') # Delete old networks if needed if 'network_remove' in container: @@ -282,6 +344,7 @@ def apply(container): os.unlink(tmp) # Add container + disabled_new = False if 'name' in container: for name, container_config in container['name'].items(): image = container_config['image'] @@ -295,70 +358,17 @@ def apply(container): # check if there is a container by that name running tmp = _cmd('podman ps -a --format "{{.Names}}"') if name in tmp: - _cmd(f'podman stop --time 3 {name}') - _cmd(f'podman rm --force {name}') + file_path = os.path.join(systemd_unit_path, f'vyos-container-{name}.service') + call(f'systemctl stop vyos-container-{name}.service') + if os.path.exists(file_path): + disabled_new = True + os.unlink(file_path) continue - memory = container_config['memory'] - restart = container_config['restart'] - - # Add capability options. Should be in uppercase - cap_add = '' - if 'cap_add' in container_config: - for c in container_config['cap_add']: - c = c.upper() - c = c.replace('-', '_') - cap_add += f' --cap-add={c}' - - # Add a host device to the container /dev/x:/dev/x - device = '' - if 'device' in container_config: - for dev, dev_config in container_config['device'].items(): - source_dev = dev_config['source'] - dest_dev = dev_config['destination'] - device += f' --device={source_dev}:{dest_dev}' - - # Check/set environment options "-e foo=bar" - env_opt = '' - if 'environment' in container_config: - for k, v in container_config['environment'].items(): - env_opt += f" -e \"{k}={v['value']}\"" - - # Publish ports - port = '' - if 'port' in container_config: - protocol = '' - for portmap in container_config['port']: - if 'protocol' in container_config['port'][portmap]: - protocol = container_config['port'][portmap]['protocol'] - protocol = f'/{protocol}' - else: - protocol = '/tcp' - sport = container_config['port'][portmap]['source'] - dport = container_config['port'][portmap]['destination'] - port += f' -p {sport}:{dport}{protocol}' - - # Bind volume - volume = '' - if 'volume' in container_config: - for vol, vol_config in container_config['volume'].items(): - svol = vol_config['source'] - dvol = vol_config['destination'] - volume += f' -v {svol}:{dvol}' - - container_base_cmd = f'podman run --detach --interactive --tty --replace {cap_add} ' \ - f'--memory {memory}m --memory-swap 0 --restart {restart} ' \ - f'--name {name} {device} {port} {volume} {env_opt}' - if 'allow_host_networks' in container_config: - _run_rerun(f'{container_base_cmd} --net host {image}') - else: - for network in container_config['network']: - ipparam = '' - if 'address' in container_config['network'][network]: - address = container_config['network'][network]['address'] - ipparam = f'--ip {address}' + cmd(f'systemctl restart vyos-container-{name}.service') - _run_rerun(f'{container_base_cmd} --net {network} {ipparam} {image}') + if disabled_new: + call('systemctl daemon-reload') return None |