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Fix LinkLocalIPs in V2 #9692

Merged
merged 1 commit into from
Aug 1, 2022
Merged

Fix LinkLocalIPs in V2 #9692

merged 1 commit into from
Aug 1, 2022

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floatingstatic
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Signed-off-by: Jeremiah Millay jmillay@fastly.com

What I did

As described in #9659 link_local_ips in compose yaml is no longer honored in compose V2. This change pulls in fixes in compose-go v1.3.0 that allow us set the LinkLocalIPs field in network.EndpointIPAMConfig{}.

I have validated this is working with the following compose yaml:

services:
  foo:
    image: alpine
    entrypoint: ["sleep", "infinity"]
    networks:
      default:
        ipv4_address: 10.1.0.100
        ipv6_address: 2001:db8:0:1::100
        link_local_ips:
          - fe80::1:95ff:fe20:100
networks:
  default:
    driver: bridge
    enable_ipv6: true
    ipam:
      config:
        - subnet: 10.1.0.0/16
        - subnet: 2001:db8:0:1::/64

Building the compose plugin locally with make compose-plugin we see the following:

$ bin/docker-compose -f ~/Desktop/compose.yaml up -d
$ bin/docker-compose --version
Docker Compose version v2.7.0-26-g2e7b4074
$ bin/docker-compose -f ~/Desktop/compose.yaml up -d
[+] Running 2/2
 ⠿ Network desktop_default  Created                                                                                                                                                                            0.0s
 ⠿ Container desktop-foo-1  Started                                                                                                                                                                            0.4s
$ bin/docker-compose -f ~/Desktop/compose.yaml exec foo ip -6 a s
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 state UNKNOWN qlen 1000
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
194: eth0@if195: <BROADCAST,MULTICAST,UP,LOWER_UP,M-DOWN> mtu 1500 state UP
    inet6 2001:db8:0:1::100/64 scope global flags 02
       valid_lft forever preferred_lft forever
    inet6 fe80::42:aff:fe01:64/64 scope link
       valid_lft forever preferred_lft forever
    inet6 fe80::1:95ff:fe20:100/64 scope link
       valid_lft forever preferred_lft forever

As expected we now see fe80::1:95ff:fe20:100 assigned to the container, whereas in #9659 with the same compose yaml this was not working in V2.

Related issue
Fixes #9659 after changes in compose-spec/compose-go#289

Signed-off-by: Jeremiah Millay <jmillay@fastly.com>
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@glours glours left a comment

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LGTM

@laurazard laurazard merged commit 57f98ef into docker:v2 Aug 1, 2022
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link_local_ips does not work in compose V2
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