diff options
Diffstat (limited to 'src/conf_mode/container.py')
| -rwxr-xr-x | src/conf_mode/container.py | 194 |
1 files changed, 113 insertions, 81 deletions
diff --git a/src/conf_mode/container.py b/src/conf_mode/container.py index ac3dc536b..08861053d 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'): @@ -86,9 +73,28 @@ def get_config(config=None): # Merge per-container default values if 'name' in container: default_values = defaults(base + ['name']) + if 'port' in default_values: + del default_values['port'] + if 'volume' in default_values: + del default_values['volume'] for name in container['name']: container['name'][name] = dict_merge(default_values, container['name'][name]) + # XXX: T2665: we can not safely rely on the defaults() when there are + # tagNodes in place, it is better to blend in the defaults manually. + if 'port' in container['name'][name]: + for port in container['name'][name]['port']: + default_values = defaults(base + ['name', 'port']) + container['name'][name]['port'][port] = dict_merge( + default_values, container['name'][name]['port'][port]) + # XXX: T2665: we can not safely rely on the defaults() when there are + # tagNodes in place, it is better to blend in the defaults manually. + if 'volume' in container['name'][name]: + for volume in container['name'][name]['volume']: + default_values = defaults(base + ['name', 'volume']) + container['name'][name]['volume'][volume] = dict_merge( + default_values, container['name'][name]['volume'][volume]) + # Delete container network, delete containers tmp = node_changed(conf, base + ['network']) if tmp: container.update({'network_remove' : tmp}) @@ -122,7 +128,7 @@ 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 +142,6 @@ 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): @@ -184,6 +187,11 @@ def verify(container): if not os.path.exists(source): raise ConfigError(f'Volume "{volume}" source path "{source}" does not exist!') + if 'port' in container_config: + for tmp in container_config['port']: + if not {'source', 'destination'} <= set(container_config['port'][tmp]): + raise ConfigError(f'Both "source" and "destination" must be specified for a port mapping!') + # If 'allow-host-networks' or 'network' not set. if 'allow_host_networks' not in container_config and 'network' not in container_config: raise ConfigError(f'Must either set "network" or "allow-host-networks" for container "{name}"!') @@ -220,6 +228,69 @@ def verify(container): return None +def generate_run_arguments(name, container_config): + image = container_config['image'] + memory = container_config['memory'] + shared_memory = container_config['shared_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" --env \"{k}={v['value']}\"" + + # Publish ports + port = '' + if 'port' in container_config: + protocol = '' + for portmap in container_config['port']: + protocol = container_config['port'][portmap]['protocol'] + sport = container_config['port'][portmap]['source'] + dport = container_config['port'][portmap]['destination'] + port += f' --publish {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'] + mode = vol_config['mode'] + volume += f' --volume {svol}:{dvol}:{mode}' + + 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}' + + 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 +334,15 @@ 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 +350,12 @@ 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 +366,7 @@ 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 +380,17 @@ 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'] + cmd(f'systemctl restart vyos-container-{name}.service') - # 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}' - - _run_rerun(f'{container_base_cmd} --net {network} {ipparam} {image}') + if disabled_new: + call('systemctl daemon-reload') return None |