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authorChristian Poessinger <christian@poessinger.com>2021-09-18 22:12:09 +0200
committerChristian Poessinger <christian@poessinger.com>2021-09-18 22:12:09 +0200
commitae2dc55aa68679e828d4bb133fc515172c081d0f (patch)
treebd92290808c95d1a3eb343422ca4ecb4376e8f4c /src
parentd411a40a3598c55fae7abd8bc5f1876007aa704b (diff)
downloadvyos-1x-ae2dc55aa68679e828d4bb133fc515172c081d0f.tar.gz
vyos-1x-ae2dc55aa68679e828d4bb133fc515172c081d0f.zip
container: T2216: add IPv6 support to container networks
Diffstat (limited to 'src')
-rwxr-xr-xsrc/conf_mode/containers.py72
1 files changed, 39 insertions, 33 deletions
diff --git a/src/conf_mode/containers.py b/src/conf_mode/containers.py
index 3a93bf062..1e0197a13 100755
--- a/src/conf_mode/containers.py
+++ b/src/conf_mode/containers.py
@@ -20,6 +20,7 @@ import json
from ipaddress import ip_address
from ipaddress import ip_network
from time import sleep
+from json import dumps as json_write
from vyos.config import Config
from vyos.configdict import dict_merge
@@ -31,10 +32,10 @@ from vyos.util import read_file
from vyos.util import write_file
from vyos.util import is_systemd_service_active
from vyos.util import is_systemd_service_running
-
-from vyos.template import render
+from vyos.template import inc_ip
from vyos.template import is_ipv4
from vyos.template import is_ipv6
+from vyos.template import render
from vyos.xml import defaults
from vyos import ConfigError
from vyos import airbag
@@ -185,6 +186,37 @@ def generate(container):
if not container:
return None
+ if 'network' in container:
+ for network, network_config in container['network'].items():
+ tmp = {
+ 'cniVersion' : '0.4.0',
+ 'name' : network,
+ 'plugins' : [{
+ 'type': 'bridge',
+ 'bridge': f'cni-{network}',
+ 'isGateway': True,
+ 'ipMasq': False,
+ 'hairpinMode': False,
+ 'ipam' : {
+ 'type': 'host-local',
+ 'routes': [],
+ 'ranges' : [],
+ },
+ }]
+ }
+
+ for prefix in network_config['prefix']:
+ net = [{'gateway' : inc_ip(prefix, 1), 'subnet' : prefix}]
+ tmp['plugins'][0]['ipam']['ranges'].append(net)
+
+ # install per address-family default orutes
+ default_route = '0.0.0.0/0'
+ if is_ipv6(prefix):
+ default_route = '::/0'
+ tmp['plugins'][0]['ipam']['routes'].append({'dst': default_route})
+
+ write_file(f'/etc/cni/net.d/{network}.conflist', json_write(tmp, indent=2))
+
render(config_containers_registry, 'containers/registry.tmpl', container)
render(config_containers_storage, 'containers/storage.tmpl', container)
@@ -201,7 +233,9 @@ def apply(container):
# Delete old networks if needed
if 'network_remove' in container:
for network in container['network_remove']:
- call(f'podman network rm --force {network}')
+ tmp = f'/etc/cni/net.d/{network}.conflist'
+ if os.path.exists(tmp):
+ os.unlink(tmp)
service_name = 'podman.service'
if 'network' in container or 'name' in container:
@@ -214,35 +248,6 @@ def apply(container):
else:
_cmd(f'systemctl stop {service_name}')
-
- # Add network
- if 'network' in container:
- for network, network_config in container['network'].items():
- # Check if the network has already been created
- if not network_exists(network) and 'prefix' in network_config:
- tmp = f'podman network create {network}'
- # we can not use list comprehension here as the --ipv6 option
- # must immediately follow the specified subnet!!!
- for prefix in sorted(network_config['prefix']):
- tmp += f' --subnet={prefix}'
- if is_ipv6(prefix):
- tmp += ' --ipv6'
- _cmd(tmp)
-
- # Disable masquerading and use traditional bridging so VyOS
- # can control firewalling/NAT by the real VyOS CLI
- cni_network_config = f'/etc/cni/net.d/{network}.conflist'
- tmp = read_file(cni_network_config)
- config = json.loads(tmp)
- if 'plugins' in config:
- for count in range(0, len(config['plugins'])):
- if 'ipMasq' in config['plugins'][count]:
- config['plugins'][count]['ipMasq'] = False
- if 'hairpinMode' in config['plugins'][count]:
- config['plugins'][count]['hairpinMode'] = False
-
- write_file(cni_network_config, json.dumps(config, indent=4))
-
# Add container
if 'name' in container:
for name, container_config in container['name'].items():
@@ -303,7 +308,8 @@ def apply(container):
for network in container_config['network']:
ipparam = ''
if 'address' in container_config['network'][network]:
- ipparam = '--ip ' + container_config['network'][network]['address']
+ address = container_config['network'][network]['address']
+ ipparam = f'--ip {address}'
_cmd(f'{container_base_cmd} --net {network} {ipparam} {image}')
return None