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Support network level mac_address attribute

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Signed-off-by: Songmin Li <lisongmin@protonmail.com>
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Songmin Li 2024-12-17 01:11:19 +08:00
parent 75d7be2b7b
commit ac7ec5c166
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5 changed files with 20 additions and 7 deletions
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8
docs/Extensions.md
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@ -38,6 +38,12 @@ Podman-compose in addition supports the specification of MAC addresses on a per-
is done by adding a `x-podman.mac_address` key to the network configuration in the container. The is done by adding a `x-podman.mac_address` key to the network configuration in the container. The
value of the `x-podman.mac_address` key is the MAC address to be used for the network interface. value of the `x-podman.mac_address` key is the MAC address to be used for the network interface.
Note that the [compose spec](https://github.com/compose-spec/compose-spec/blob/main/05-services.md#mac_address)
now supports `mac_address` on the network level, so we recommend using
the standard `mac_address` key for setting the MAC address. The
`x-podman.mac_address` is still supported for backwards compatibility.
Specifying a MAC address for the container and for individual networks at the same time is not Specifying a MAC address for the container and for individual networks at the same time is not
supported. supported.
@ -69,7 +75,7 @@ services:
x-podman.mac_address: "02:aa:aa:aa:aa:aa" x-podman.mac_address: "02:aa:aa:aa:aa:aa"
net1: net1:
ipv4_address: "192.168.1.10" ipv4_address: "192.168.1.10"
x-podman.mac_address: "02:bb:bb:bb:bb:bb" mac_address: "02:bb:bb:bb:bb:bb" # mac_address is supported
``` ```
## Podman-specific network modes ## Podman-specific network modes

1
newsfragments/network_level_mac_address.feature Normal file
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@ -0,0 +1 @@
Support network level mac_address attribute.

8
podman_compose.py
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@ -966,7 +966,7 @@ def get_net_args_from_networks(compose, cnt):
# specified on the network level as well # specified on the network level as well
if mac_address is not None: if mac_address is not None:
for net_config in multiple_nets.values(): for net_config in multiple_nets.values():
network_mac = net_config.get("x-podman.mac_address") network_mac = net_config.get("mac_address", net_config.get("x-podman.mac_address"))
if network_mac is not None: if network_mac is not None:
raise RuntimeError( raise RuntimeError(
f"conflicting mac addresses {mac_address} and {network_mac}:" f"conflicting mac addresses {mac_address} and {network_mac}:"
@ -983,8 +983,10 @@ def get_net_args_from_networks(compose, cnt):
ipv4 = net_config_.get("ipv4_address") ipv4 = net_config_.get("ipv4_address")
ipv6 = net_config_.get("ipv6_address") ipv6 = net_config_.get("ipv6_address")
# custom extension; not supported by docker-compose v3 # Note: mac_address is supported by compose spec now, and x-podman.mac_address
mac = net_config_.get("x-podman.mac_address") # is only for backward compatibility
# https://github.com/compose-spec/compose-spec/blob/main/05-services.md#mac_address
mac = net_config_.get("mac_address", net_config_.get("x-podman.mac_address"))
aliases_on_net = norm_as_list(net_config_.get("aliases", [])) aliases_on_net = norm_as_list(net_config_.get("aliases", []))
# if a mac_address was specified on the container level, apply it to the first network # if a mac_address was specified on the container level, apply it to the first network

2
tests/integration/nets_test_ip/docker-compose.yml
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@ -23,7 +23,7 @@ services:
x-podman.mac_address: "02:01:01:00:01:01" x-podman.mac_address: "02:01:01:00:01:01"
internal-network: internal-network:
ipv4_address: "172.19.2.10" ipv4_address: "172.19.2.10"
x-podman.mac_address: "02:01:01:00:02:01" mac_address: "02:01:01:00:02:01"
volumes: volumes:
- ./test1.txt:/var/www/html/index.txt:ro,z - ./test1.txt:/var/www/html/index.txt:ro,z
web2: web2:

8
tests/unit/test_get_net_args.py
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@ -149,11 +149,15 @@ class TestGetNetArgs(unittest.TestCase):
args = get_net_args(compose, container) args = get_net_args(compose, container)
self.assertListEqual(expected_args, args) self.assertListEqual(expected_args, args)
def test_mac_on_network(self): @parameterized.expand([
"mac_address",
"x-podman.mac_address",
])
def test_mac_on_network(self, mac_attr):
mac = "00:11:22:33:44:55" mac = "00:11:22:33:44:55"
compose = get_networked_compose() compose = get_networked_compose()
container = get_minimal_container() container = get_minimal_container()
container["networks"] = {"net0": {"x-podman.mac_address": mac}} container["networks"] = {"net0": {mac_attr: mac}}
expected_args = [ expected_args = [
f"--network={PROJECT_NAME}_net0:mac={mac},alias={SERVICE_NAME}", f"--network={PROJECT_NAME}_net0:mac={mac},alias={SERVICE_NAME}",