"Incorrect" host-gateway in case with Rootless Docker #47684
Description
Description
When use extra_hosts: "host.docker.internal:host-gateway" it use incorrect IP address to connect to host. host.docker.internal equal to 172.17.0.1 but should 10.0.2.2
Reproduce
- Add to docker-compose.yaml
extra_hosts:
- "host.docker.internal:host-gateway"
- Run docker compose up
- Run docker compose exec service_name curl -v http://host.docker.internal
- Now you can see that it try to connect to incorrect IP
Expected behavior
host.docker.internal should be equal to 10.0.2.2
docker version
Client: Docker Engine - Community
Version: 26.0.0
API version: 1.45
Go version: go1.21.8
Git commit: 2ae903e
Built: Wed Mar 20 15:18:01 2024
OS/Arch: linux/amd64
Context: default
Server: Docker Engine - Community
Engine:
Version: 26.0.0
API version: 1.45 (minimum version 1.24)
Go version: go1.21.8
Git commit: 8b79278
Built: Wed Mar 20 15:18:01 2024
OS/Arch: linux/amd64
Experimental: false
containerd:
Version: 1.6.28
GitCommit: ae07eda36dd25f8a1b98dfbf587313b99c0190bb
runc:
Version: 1.1.12
GitCommit: v1.1.12-0-g51d5e94
docker-init:
Version: 0.19.0
GitCommit: de40ad0
rootlesskit:
Version: 2.0.2
ApiVersion: 1.1.1
NetworkDriver: slirp4netns
PortDriver: builtin
StateDir: /run/user/1000/dockerd-rootless
slirp4netns:
Version: 1.2.0
GitCommit: 656041d45cfca7a4176f6b7eed9e4fe6c11e8383docker info
Client: Docker Engine - Community
Version: 26.0.0
Context: default
Debug Mode: false
Plugins:
buildx: Docker Buildx (Docker Inc.)
Version: v0.13.1
Path: /usr/libexec/docker/cli-plugins/docker-buildx
compose: Docker Compose (Docker Inc.)
Version: v2.25.0
Path: /usr/libexec/docker/cli-plugins/docker-compose
Server:
Containers: 22
Running: 8
Paused: 0
Stopped: 14
Images: 69
Server Version: 26.0.0
Storage Driver: overlay2
Backing Filesystem: btrfs
Supports d_type: true
Using metacopy: false
Native Overlay Diff: false
userxattr: true
Logging Driver: json-file
Cgroup Driver: systemd
Cgroup Version: 2
Plugins:
Volume: local
Network: bridge host ipvlan macvlan null overlay
Log: awslogs fluentd gcplogs gelf journald json-file local splunk syslog
Swarm: inactive
Runtimes: runc io.containerd.runc.v2
Default Runtime: runc
Init Binary: docker-init
containerd version: ae07eda36dd25f8a1b98dfbf587313b99c0190bb
runc version: v1.1.12-0-g51d5e94
init version: de40ad0
Security Options:
seccomp
Profile: builtin
rootless
cgroupns
Kernel Version: 6.8.4
Operating System: Debian GNU/Linux 12 (bookworm)
OSType: linux
Architecture: x86_64
CPUs: 16
Total Memory: 30.76GiB
Name: MSI-Bravo17
ID: ff1c622b-6387-415e-8624-1fd851de327c
Docker Root Dir: /home/serhy/.local/share/docker
Debug Mode: false
Username: [email protected]
Experimental: false
Insecure Registries:
127.0.0.0/8
Live Restore Enabled: false
WARNING: No cpuset support
WARNING: No io.weight support
WARNING: No io.weight (per device) support
WARNING: No io.max (rbps) support
WARNING: No io.max (wbps) support
WARNING: No io.max (riops) support
WARNING: No io.max (wiops) support
WARNING: bridge-nf-call-iptables is disabled
WARNING: bridge-nf-call-ip6tables is disabledAdditional Info
I know that I can use extra_hosts: "host.docker.internal:10.0.2.2" but I think that better way to not change code instead of hard code IPs.