Could not get the Dockerfile for systemd base image with the steps mentioned

[amitadpsl]

Hi

When i try to create the image frm the first dockerfile mentioned at:
https://github.com/docker-library/docs/tree/master/centos --- Dockerfile for systemd base image
I get the following:
Step 3 : RUN yum -y swap -- remove fakesystemd -- install systemd systemd-libs
---> Running in ac2363ba55ca
Loaded plugins: fastestmirror
No Match for argument: fakesystemd
swap remove fakesystemd
---> 9dde46f4a0dc

Agter going thru the 2nd dockerfile and starting the image with
docker run --privileged -ti -v /sys/fs/cgroup:/sys/fs/cgroup:ro -p 80:80 local/c7-systemd-httpd

It still gives the error:
Failed to get D-Bus connection: No connection to service manager.

PLease help or suggest a image that has the basic things in plave.
Failed to get D-Bus connection: No connection to service manage

[jperrin]

There is no fakesystemd in the container anymore. there's a pending pull request for docker's documentation
instead of fakesystemd, use systemd-container.
your command would look like yum -y swap -- remove systemd-container -- install systemd systemd-libs

[jperrin]

If it will help, I'm happy to build/publish a systemd enabled container to the u/centos namespace.

[amitadpsl]

HI
Building the image with the above command throws the error:
Transaction check error:
file /usr/lib64/libsystemd-daemon.so.0.0.10 from install of systemd-libs-208-20.el7_1.3.x86_64 conflicts with file from package systemd-container-libs-208.20-6.el7.centos.x86_64
file /usr/lib64/libsystemd-id128.so.0.0.26 from install of systemd-libs-208-20.el7_1.3.x86_64 conflicts with file from package systemd-container-libs-208.20-6.el7.centos.x86_64
file /usr/lib64/libsystemd-journal.so.0.11.3 from install of systemd-libs-208-20.el7_1.3.x86_64 conflicts with file from package systemd-container-libs-208.20-6.el7.centos.x86_64
file /usr/lib64/libsystemd-login.so.0.9.1 from install of systemd-libs-208-20.el7_1.3.x86_64 conflicts with file from package systemd-container-libs-208.20-6.el7.centos.x86_64
file /usr/lib64/libudev.so.1.4.0 from install of systemd-libs-208-20.el7_1.3.x86_64 conflicts with file from package systemd-container-libs-208.20-6.el7.centos.x86_64
file /usr/lib64/security/pam_systemd.so from install of systemd-libs-208-20.el7_1.3.x86_64 conflicts with file from package systemd-container-libs-208.20-6.el7.centos.x86_64

Error Summary

If you could publish the systemd enabled image it will be of great help

[jperrin]

I'm looking at this today, and realize I neglected to mention, does systemd-container not work for you?

It has most of the systemd functionality, without some of the problematic parts.

It can be used with the existing CentOS containers, like so:

FROM centos:latest 
MAINTAINER Jim Perrin <jperrin@centos.org> 

ENV container=docker
RUN yum -y update && yum clean all
RUN yum -y install httpd
RUN systemctl enable httpd.service

VOLUME ["/run", "/tmp", "/sys/fs/cgroup"]
EXPOSE 80
CMD ["/usr/sbin/init"]

[jperrin]

For full systemd, you can use this:

FROM centos:latest
MAINTAINER Jim Perrin <jperrin@centos.org>

ENV container docker

RUN yum -y swap -- remove systemd-container systemd-container-libs -- install systemd systemd-libs

RUN yum -y update; yum clean all; \
(cd /lib/systemd/system/sysinit.target.wants/; for i in *; do [ $i == systemd-tmpfiles-setup.service ] || rm -f $i; done); \
rm -f /lib/systemd/system/multi-user.target.wants/*;\
rm -f /etc/systemd/system/*.wants/*;\
rm -f /lib/systemd/system/local-fs.target.wants/*; \
rm -f /lib/systemd/system/sockets.target.wants/*udev*; \
rm -f /lib/systemd/system/sockets.target.wants/*initctl*; \
rm -f /lib/systemd/system/basic.target.wants/*;\
rm -f /lib/systemd/system/anaconda.target.wants/*;
VOLUME [ "/sys/fs/cgroup" ]
CMD ["/usr/sbin/init"]

[amitadpsl]

Hey Thanks it did help me build stuff on this image thanks

[kramarama]

For full systemd, you can use this:

Actually, it doesn't work:

# systemctl status
Failed to get D-Bus connection: Operation not permitted

Any ideas how to get FULL systemd running in docker container with centos 7?

[kramarama]

Well, it works! I'm running it on Ubuntu Trusty, and I had to add -v /tmp/$(mktemp -d):/run to have the container started with full systemd. All right here!

[jperrin]

The updated centos:latest container is now at 7.2 with full systemd installed (though not used by default). I'm going to mark this bug as closed.