On a debian host I create an SSH container with the following docker file :
FROM debian:latest
RUN apt-get update && \
apt-get install --yes openssh-server
# Expose the SSH port
EXPOSE 22/tcp
# Start SSH server on container startup
CMD ["/usr/sbin/sshd", "-D", "-p 22"]
While still keeping the “exec” form of the service launch (Docker Best Practices: Choosing Between RUN, CMD, and ENTRYPOINT | Docker) is there a way to add the following additional IP route ? :
192.168.40.0/24 via 192.168.30.4 dev eth0
Currently I’m doing this by manually launch the command :
sudo ip route add 192.168.40.0/24 via 192.168.30.4
I would prefer though if this additional route would be create automatically at each restart
My docker info :
Client: Docker Engine - Community
Version: 27.3.1
Context: default
Debug Mode: false
Plugins:
buildx: Docker Buildx (Docker Inc.)
Version: v0.17.1
Path: /usr/libexec/docker/cli-plugins/docker-buildx
compose: Docker Compose (Docker Inc.)
Version: v2.29.7
Path: /usr/libexec/docker/cli-plugins/docker-compose
Server:
Containers: 4
Running: 4
Paused: 0
Stopped: 0
Images: 6
Server Version: 27.3.1
Storage Driver: overlay2
Backing Filesystem: extfs
Supports d_type: true
Using metacopy: false
Native Overlay Diff: true
userxattr: false
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: io.containerd.runc.v2 runc
Default Runtime: runc
Init Binary: docker-init
containerd version: 7f7fdf5fed64eb6a7caf99b3e12efcf9d60e311c
runc version: v1.1.14-0-g2c9f560
init version: de40ad0
Security Options:
apparmor
seccomp
Profile: builtin
cgroupns
Kernel Version: 6.1.0-26-amd64
Operating System: Debian GNU/Linux 12 (bookworm)
OSType: linux
Architecture: x86_64
CPUs: 4
Total Memory: 7.647GiB
Name: testhost
ID: e6ca5bef-53d1-495d-b5c9-f1102b5c10fc
Docker Root Dir: /vmds/dockerdata
Debug Mode: false
Experimental: false
Insecure Registries:
127.0.0.0/8
Live Restore Enabled: false
Default Address Pools:
Base: 192.168.30.0/24, Size: 26