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How to solve the error caused by starting the service with systemctl in docker? In view of this problem, this article introduces the corresponding analysis and answers in detail, hoping to help more partners who want to solve this problem to find a more simple and feasible way.

Docker version:

[root@localhost gae_proxy] # docker versionClient: Version: 1.10.3 API version: 1.22 Package version: docker-common-1.10.3-46.el7.centos.10.x86_64 Go version: go1.6.3 Git commit: d381c64-unsupported Built: Thu Aug 4 13:21:17 2016 OS/Arch: linux/amd64Server: Version: 1.10.3 API version: 1.22 Package version: docker-common-1.10.3 -46.el7.centos.10.x86_64 Go version: go1.6.3 Git commit: d381c64-unsupported Built: Thu Aug 4 13:21:17 2016 OS/Arch: linux/amd64

Mirror version

[root@b2ca5610d3da /] # cat / etc/redhat-releaseCentOS Linux release 7.2.1511 (Core)

When you start a service through systemctl in docker, you always report an error such as Failed to get D-Bus connection: Operation not permitted.

[root@25d27693a24d ~] # systemctl start sshdFailed to get D-Bus connection: Operation not permitted

The solution is to run / usr/sbin/init on docker run. For example:

[root@localhost /] # docker run-tid-- name hadoopbase centos/hadoopbase:v001 / usr/sbin/init

In this way, the running container can use systemctl to start the service. Some people say that the problem of running an error through systemctl has been solved in CentOS7.2, but I still encounter this problem in practice.

Another solution is to execute the command / usr/sbin/init through CMD when generating an image file through Dockerfile, that is, CMD ["/ usr/sbin/init"]

This is the answer to how to solve the problem when using systemctl to start the service in docker. I hope the above content can be of some help to you. If you still have a lot of doubts to be solved, you can follow the industry information channel for more related knowledge.

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