Quick solution to fix the error: failed to get d-bus connection: operation not permitted

Question

I get an error

Failed to get D-Bus connection: Operation not permitted

when trying to install ambari 2.6 on a docker centos7 image. How to fix the failed to get d-bus connection: operation not permitted error? Please give me some advice.

hdtutoria · Accepted Answer

The cause: I think the cause of this error is that on Centos7, the systemd daemon is used to launch and stop all services. The systemctl command will simply try to communicate with the daemon through a d-bus channel, which is where the message originates.

The solution: To avoid this situation, you need to use this command:

docker run -d -it --privileged {Image ID} /usr/sbin/init

And gain access to the container's root.

systemctl start httpd.service

Zoé Turpin · Answer

For more information on @Guido’s answer: I copied systemctl.py from hier and placed it in the same directory with my Dockerfile and then added the following to my Dockerfile:

COPY systemctl.py /usr/bin/systemctl
RUN chmod a+x /usr/bin/systemctl

This allowed me to create a sshd service similar to this:

service sshd start

Mavis Evans · Answer

For more information on @Guido’s answer: I copied systemctl.py from hier, placed it in the same directory, and then added the following to my Dockerfile:

COPY systemctl.py /usr/bin/systemctl
RUN chmod a+x /usr/bin/systemctl

This allowed me to create a sshd service similar to this:

service sshd start

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Quick solution to fix the error: failed to get d-bus connection: operation not permitted