forked from
fogtype.com/_
プレイグラウンド、サンドボックス、使い捨てスクリプト置き場
update
Kohei Watanabe
(Nov 22, 2025, 1:17 PM +0900)
b6afe189
a9380fdd
+39
-13
+34
-6
docker-network/README.md
+34
-6
docker-network/README.md
···
1
1
やりたいこと: 複数の NIC がある環境でそれぞれ Docker コンテナに割り当て
2
2
3
-
既存のシステムブリッジ br0 を Docker ブリッジとして利用できない
4
-
https://github.com/moby/libnetwork/issues/2310
5
-
6
-
なので macvlan を使用:
3
+
構築:
7
4
8
5
```sh
9
-
docker compose up -d
6
+
sudo ip link add br0 type bridge
7
+
sudo ip link set [INTERFACE_NAME] master br0
8
+
SUBNET_ADDRESS=[SUBNET_ADDRESS] docker compose up -d
10
9
```
11
10
12
11
確認:
13
12
14
13
```sh
15
-
watch -n 1 ip -s link show enp1s0
14
+
watch -n 1 ip -s link show [INTERFACE_NAME]
15
+
```
16
+
17
+
撤去:
18
+
19
+
```sh
20
+
docker compose down
21
+
sudo ip link delete br0 type bridge
22
+
```
23
+
24
+
macvlan を使用する場合:
25
+
26
+
```yml
27
+
services:
28
+
a:
29
+
image: alpine
30
+
command: ping 8.8.8.8
31
+
networks:
32
+
macnet:
33
+
ipv4_address: "${IP_ADDRESS}"
34
+
networks:
35
+
macnet:
36
+
driver: macvlan
37
+
driver_opts:
38
+
parent: "${INTERFACE_NAME}"
39
+
ipam:
40
+
driver: default
41
+
config:
42
+
- subnet: "${SUBNET_ADDRESS}"
43
+
gateway: "${GATEWAY_ADDRESS}"
16
44
```
+5
-7
docker-network/compose.yml
+5
-7
docker-network/compose.yml
···
3
3
image: alpine
4
4
command: ping 8.8.8.8
5
5
networks:
6
-
macnet:
7
-
ipv4_address: "${IP_ADDRESS}"
6
+
- br0-net
8
7
networks:
9
-
macnet:
10
-
driver: macvlan
8
+
br0-net:
9
+
driver: bridge
11
10
driver_opts:
12
-
parent: "${INTERFACE_NAME}"
11
+
com.docker.network.bridge.name: br0
12
+
com.docker.network.bridge.inhibit_ipv4: "true"
13
13
ipam:
14
-
driver: default
15
14
config:
16
15
- subnet: "${SUBNET_ADDRESS}"
17
-
gateway: "${GATEWAY_ADDRESS}"