Cannot install packages in centos:7

[centos]

Cannot install packages in centos:7

[jperrin]

You should be doing a yum update first.
This allows you t pull in the updated systemd packages which otherwise generate the file conflict you're seeing.

in short -> yum -y update && yum -y install initscripts

[edwintorok]

Thanks, that works. The https://docs.docker.com/engine/articles/dockerfile_best-practices/ says not to run apt-get upgrade/dist-upgrade so I assumed not running yum update is a similar best practice.
Could the best practice document be updated too to say what should be done for rpm-based images?

[jperrin]

Their reasoning for NOT running updates is questionable at best, and makes you more reliant on docker.

[edwintorok]

Hmm in another container I got this error with a yum -y update && yum -y install:

Transaction check error:
  file /usr/lib64/libsystemd-daemon.so.0 from install of systemd-libs-219-19.el7.x86_64 conflicts with file from package systemd-container-libs-208.20-6.el7.centos.x86_64
  file /usr/lib64/libsystemd-id128.so.0 from install of systemd-libs-219-19.el7.x86_64 conflicts with file from package systemd-container-libs-208.20-6.el7.centos.x86_64
  file /usr/lib64/libsystemd-journal.so.0 from install of systemd-libs-219-19.el7.x86_64 conflicts with file from package systemd-container-libs-208.20-6.el7.centos.x86_64
  file /usr/lib64/libsystemd-login.so.0 from install of systemd-libs-219-19.el7.x86_64 conflicts with file from package systemd-container-libs-208.20-6.el7.centos.x86_64
  file /usr/lib64/libudev.so.1 from install of systemd-libs-219-19.el7.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-219-19.el7.x86_64 conflicts with file from package systemd-container-libs-208.20-6.el7.centos.x86_64

For now I've used mkimage-yum.sh to create a CentOS 7.2 image locally.

[edwintorok]

Ok so this is interesting.
This fails: docker run -it centos:centos7 yum -y update.
And this works: docker run -it centos:7 yum -y update.
After docker pull centos:centos7 the other one works too, so looks like I have to do both: pull latest docker image for all tags, and run yum update.

[jperrin]

I've got the 7.2 images ready to submit to the docker registry. They should hopefully be available tomorrow. I'd say Thursday at the latest.

[jperrin]

I underestimated their speed. 7.2 is now in the registry. I'm going to close this bug, as doing a fresh pull will give you the new image.

[edwintorok]

Excellent, thanks for the quick turnaround time!