how to solve Docker issue Failed to connect to bus: No such file or directory

Question

Trying to run following command in the ubuntu 16.04 docker container

root@mytest:/Linux_Insight_Agent# systemctl start ir_agent.service

I have installed neede packages but at the time of starting the service following issue is coming.

Failed to connect to bus: No such file or directory

Answer 1

That's because "systemctl" talks to the systemd daemon by using the d-bus. In a container there is no systemd-daemon. Asking for a start will probably not quite do what you expect - the dev-mapping need to be a bit longer.

Another solution may be to avoid the usage of a systemd daemon with the help of the docker-systemctl-replacement script. It overwrites default systemctl however.

Answer 2

I had the same situation In my case, i resolve by running docker with --volume parameter.

example:

docker run -it \
    --volume /sys/fs/cgroup:/sys/fs/cgroup:ro \
    --rm IMAGE /bin/bash

I hope works for you...