Closed kristiehoward closed 7 years ago
Update: running sudo yum erase docker-engine-selinux
fixed the issue.... but I don't know why the issue exists in the first place 😅
(and i had this issue on all 4 machines)
And I did run the Uninstall instructions before just to make sure, which said there was nothing to remove:
sudo yum remove docker \
docker-common \
container-selinux \
docker-selinux \
docker-engine
This is because previously we reliaed on docker-selinux (or docker-ce-selinux
) and have moved to container-selinux
.
We'll need to update the docs.
I'll check if there's something we can do in the RPM spec.
Maybe we need to Obsoletes: docker-ce-selinux
?
@andrewhsu
the same problem when install in a pure centos7.2 system which has never installed old docker version, out put as follows:
Resolving Dependencies
--> Running transaction check
---> Package docker-ce.x86_64 0:17.03.2.ce-1.el7.centos will be installed
--> Processing Dependency: docker-ce-selinux >= 17.03.2.ce-1.el7.centos for package: docker-ce-17.03.2.ce-1.el7.centos.x86_64
Package docker-ce-selinux is obsoleted by docker-ce, but obsoleting package does not provide for requirements
--> Processing Dependency: libcgroup for package: docker-ce-17.03.2.ce-1.el7.centos.x86_64
--> Processing Dependency: libseccomp.so.2()(64bit) for package: docker-ce-17.03.2.ce-1.el7.centos.x86_64
--> Processing Dependency: libltdl.so.7()(64bit) for package: docker-ce-17.03.2.ce-1.el7.centos.x86_64
--> Running transaction check
---> Package docker-ce.x86_64 0:17.03.2.ce-1.el7.centos will be installed
--> Processing Dependency: docker-ce-selinux >= 17.03.2.ce-1.el7.centos for package: docker-ce-17.03.2.ce-1.el7.centos.x86_64
Package docker-ce-selinux is obsoleted by docker-ce, but obsoleting package does not provide for requirements
---> Package libcgroup.x86_64 0:0.41-11.el7 will be installed
---> Package libseccomp.x86_64 0:2.3.1-2.el7 will be installed
---> Package libtool-ltdl.x86_64 0:2.4.2-22.el7_3 will be installed
--> Finished Dependency Resolution
Error: Package: docker-ce-17.03.2.ce-1.el7.centos.x86_64 (docker-ce-stable)
Requires: docker-ce-selinux >= 17.03.2.ce-1.el7.centos
Available: docker-ce-selinux-17.03.0.ce-1.el7.centos.noarch (docker-ce-stable)
docker-ce-selinux = 17.03.0.ce-1.el7.centos
Available: docker-ce-selinux-17.03.1.ce-1.el7.centos.noarch (docker-ce-stable)
docker-ce-selinux = 17.03.1.ce-1.el7.centos
Available: docker-ce-selinux-17.03.2.ce-1.el7.centos.noarch (docker-ce-stable)
docker-ce-selinux = 17.03.2.ce-1.el7.centos
You could try using --skip-broken to work around the problem
You could try running: rpm -Va --nofiles --nodigest
and neither rpm -Va --nofiles --nodigest
nor yum install docker-ce-17.03.2.ce-1.el7.centos --skip-broken
luck at all
and docker-ce-17.06.0.ce-1.el7.centos can be installed successfully. how ever, rancher not support this version right now
Installed 17.03.0.ce-1.el7.centos last month and everything worked perfectly. Now the same installation process is throwing the above mentioned error. if i install the latest version of docker-ce, everything seems to be working. I want to install docker in a machine and connect the container to a overlay network. So i would prefer to install 17.03.0.ce-1.el7.centos and maintain same version in all the machines under overlay network. Is it any workaround to get rid of this dependency issue. I am using centos 7 and need to install docker 17.03.0. Thanks in advance
For the initial cause this issue was filed, the docker-ce 17.06.0 packages can now install properly on centos 7.
@terminatorheart for your specific situation of installing docker-ce 17.03.2, you'll need to peg the version specifically and pass a setopt
flag to ignore the Obsoletes
that was introduced with docker-ce 17.06.0 just to get the older 17.03.2 package installed:
$ yum install --setopt=obsoletes=0 \
docker-ce-17.03.2.ce-1.el7.centos.x86_64 \
docker-ce-selinux-17.03.2.ce-1.el7.centos.noarch # on a new system with yum repo defined, forcing older version and ignoring obsoletes introduced by 17.06.0
@andrewhsu nice, it worked well. that's so kind of you! if the doc here https://docs.docker.com/engine/installation/linux/docker-ce/centos/ updated will be of great helpful
@prakashriti i think you meet the same problem of mine. and please just follow andrewhsu's solution
I'm running docker-ce on rhel 7.3 and this is what I got recently when updating.
Resolving Dependencies
--> Running transaction check
---> Package docker-ce.x86_64 0:17.03.2.ce-1.el7.centos will be updated
---> Package docker-ce.x86_64 0:17.06.0.ce-1.el7.centos will be obsoleting
--> Processing Dependency: container-selinux >= 2.9 for package: docker-ce-17.06.0.ce-1.el7.centos.x86_64
---> Package docker-ce-selinux.noarch 0:17.05.0.ce-1.el7.centos will be obsoleted
--> Finished Dependency Resolution
Error: Package: docker-ce-17.06.0.ce-1.el7.centos.x86_64 (docker-ce-edge)
Requires: container-selinux >= 2.9
You could try using --skip-broken to work around the problem
You could try running: rpm -Va --nofiles --nodigest
I've found same issue as @f3rdy on RHEL 7.3
@andrewhsu 's method works for me
[root@cfc-k8s-1-2-3 ~]# yum install --setopt=obsoletes=0 \
> docker-ce-17.03.2.ce-1.el7.centos.x86_64 \
> docker-ce-selinux-17.03.2.ce-1.el7.centos.noarch
Loaded plugins: langpacks, product-id, rhnplugin, search-disabled-repos, subscription-manager
This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.
This system is not registered with RHN Classic or Red Hat Satellite.
You can use rhn_register to register.
Red Hat Satellite or RHN Classic support will be disabled.
Resolving Dependencies
--> Running transaction check
---> Package docker-ce.x86_64 0:17.03.2.ce-1.el7.centos will be installed
---> Package docker-ce-selinux.noarch 0:17.03.2.ce-1.el7.centos will be installed
--> Finished Dependency Resolution
Dependencies Resolved
================================================================================================================================================================================================================
Package Arch Version Repository Size
================================================================================================================================================================================================================
Installing:
docker-ce x86_64 17.03.2.ce-1.el7.centos docker-ce-stable 19 M
docker-ce-selinux noarch 17.03.2.ce-1.el7.centos docker-ce-stable 28 k
Transaction Summary
================================================================================================================================================================================================================
Install 2 Packages
Total download size: 19 M
Installed size: 65 M
Is this ok [y/d/N]: y
Downloading packages:
warning: /var/cache/yum/x86_64/7Server/docker-ce-stable/packages/docker-ce-selinux-17.03.2.ce-1.el7.centos.noarch.rpm: Header V4 RSA/SHA512 Signature, key ID 621e9f35: NOKEY ] 0.0 B/s | 0 B --:--:-- ETA
Public key for docker-ce-selinux-17.03.2.ce-1.el7.centos.noarch.rpm is not installed
(1/2): docker-ce-selinux-17.03.2.ce-1.el7.centos.noarch.rpm | 28 kB 00:00:00
(2/2): docker-ce-17.03.2.ce-1.el7.centos.x86_64.rpm | 19 MB 00:00:05
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Total 3.2 MB/s | 19 MB 00:00:05
Retrieving key from https://download.docker.com/linux/centos/gpg
Importing GPG key 0x621E9F35:
Userid : "Docker Release (CE rpm) <docker@docker.com>"
Fingerprint: 060a 61c5 1b55 8a7f 742b 77aa c52f eb6b 621e 9f35
From : https://download.docker.com/linux/centos/gpg
Is this ok [y/N]: y
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Installing : docker-ce-selinux-17.03.2.ce-1.el7.centos.noarch 1/2
setsebool: SELinux is disabled.
libsemanage.semanage_direct_install_info: Overriding docker module at lower priority 100 with module at priority 400.
Installing : docker-ce-17.03.2.ce-1.el7.centos.x86_64 2/2
Verifying : docker-ce-selinux-17.03.2.ce-1.el7.centos.noarch 1/2
Verifying : docker-ce-17.03.2.ce-1.el7.centos.x86_64 2/2
Installed:
docker-ce.x86_64 0:17.03.2.ce-1.el7.centos docker-ce-selinux.noarch 0:17.03.2.ce-1.el7.centos
Complete!
Removing old packages did not work for me. Because they were not there at all.
yum remove docker \
> docker-common \
> container-selinux \
> docker-selinux \
> docker-engine
Loaded plugins: langpacks, product-id, rhnplugin, search-disabled-repos, subscription-manager
This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.
This system is not registered with RHN Classic or Red Hat Satellite.
You can use rhn_register to register.
Red Hat Satellite or RHN Classic support will be disabled.
No Match for argument: docker
No Match for argument: docker-common
No Match for argument: container-selinux
No Match for argument: docker-selinux
No Match for argument: docker-engine
No Packages marked for removal
I really love Docker, but breaking the installation process like this... How could nobody find this? Are there no tests at all before pushing to the "docker-ce-stable" repositories?
@NBardelot WE are the testers.
Anyone knows how to fix this in a Kickstart file. This is completely breaking the automated install with the following message docker-ce-17.06.0.ce-1.el7.centos.x86_64 requires container-selinux >= 2.9.
I have containers running in redhat and due to concept of docker EE and CE, support to redhat are now done only through EE which i need to purchase. Now the latest version of docker breaking everything during installation process.
We decided to change a dependency to rely on a RedHat provided package for the sake of compatibility instead of shipping something custom that tends to break frequently due to changes to other system packages.
This new depdency is provided in both RHEL and CentOS package repos.
Is this really a documentation bug?
@cpuguy83
The Redhat extras channel is not a repository enabled by default. Adding a dependency from that repository should not be considered "stable" as-is. It has many implications for Docker users, like repos management on the servers, plus security considerations.
At least the documentation should mention that the Redhat extras channel is now a prerequisite. But even then, putting that change in the day-to-day release cycle and in the "stable" Docker channel seems a bad choice to me.
Of course you can say that RHEL is not supported officialy for Docker-CE. But that looks like a marketing decision, and then again a bad one. If I'm not able to prove to my CTO that Docker-CE works on our RHEL environnement close to the way it works on my CentOS VM, how could I ever convince him to pay for Docker-EE ?
@NBardelot The docs were updated before 17.06 was released. CentOS is indeed different than RHEL, and yes, RHEL is not officially supported for Docker CE. These are different distributions, with different defaults... however the actual RHEL docs are also up to date as well.
@cpuguy83
The Docker-EE installation documentation for RHEL is indeed mentionning the fact that you need to enable the "extras" channel.
And the Docker-CE installation documentation is indeed mentionning that RHEL is not supported.
But wouldn't it be very nice if we did not need to merge with our eyes the two documentationsto to know how to install Docker-CE on RHEL ? :)
A simple caveat like "please be aware that if you still want to try Docker-CE on RHEL you have to look at the prerequisite of the Docker-EE installation guide" would suffice.
But wouldn't it be very nice if we did not need to merge with our eyes the two documentations to to know how to install Docker-CE on RHEL ? :)
Sure it might be a nice to have, but it is tricky because RHEL and CentOS are not the same thing. I would suggest proposing an edit to https://github.com/docker/docker.github.io if you think it's neccessary.
i have the same issue as @akanarelis does .. docker-ce-17.06.0.ce-1.el7.centos.x86_64 requires container-selinux >= 2.9.. Anyone has a solution here?
@amanagarwal2189 You must enable the extras
repo which contains the container-selinux
package.
@cpuguy83
Thanks for your time and insight. I've opened an issue to ask for better documentation: https://github.com/docker/docker.github.io/issues/3818
@NBardelot Thanks very much!
I did enable the extras repo and now I get a different dependancy. container-selinux-2.19.2.1.el7.noarch requires policycoreutils >= 2.5-11. this requires the updates repo. Problem is even after enabling the extras repo, theinstallation passes the check, but when package installation starts it gives the same error about docker, saying this is likely due to an error with the installation source. Any ideas?
@akanarelis : i am a newbie to Linux and i could not figure out how to enable the 'extras'. Can you help me with that! Secondly, i installed only container-selinux-2.9-4.el7.noarch.rpm and the docker was running post that. Not sure, however, if I was correct in doing so and will i face any issue later on due to missing dependencies.
i am a newbie myself, but i enabled the extras repo in my kickstart file with this line repo --name="CentOS-$releasever - Extras" --baseurl=http://mirror.centos.org/centos/$releasever/extras/$basearch/
This install works for me on RedHat 7.3
yum install -y yum-utils device-mapper-persistent-data lvm2
yum-config-manager \
--add-repo \
https://download.docker.com/linux/centos/docker-ce.repo
yum-config-manager --enable docker-ce-edge
yum makecache fast
yum -y --enablerepo=rhui-REGION-rhel-server-extras install container-selinux
yum -y install docker-ce
The process below works fine for AWS RedHat 7.X instance:
sudo yum install --setopt=obsoletes=0 docker-ce-17.03.2.ce-1.el7.centos.x86_64 docker-ce-selinux-17.03.2.ce-1.el7.centos.noarch
sudo yum install -y yum-utils device-mapper-persistent-data lvm2
sudo yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
sudo yum-config-manager --enable docker-ce-edge
sudo yum makecache fast
sudo yum -y --enablerepo=rhui-REGION-rhel-server-extras install container-selinux
sudo yum -y install docker-ce
@smercier74
Yes it works. But you're stuck in 17.03 (instead of 17.06 while I write this message). And nobody knows for how long...
Couldn't get to work on RHEL 7.3 from the EPEL... Could install 17.0.6 manually as follows
sudo yum remove docker \
docker-common \
container-selinux \
docker-selinux \
docker-engine
$ sudo yum-config-manager \
> --add-repo \
> https://download.docker.com/linux/centos/docker-ce.repo
Loaded plugins: langpacks
adding repo from: https://download.docker.com/linux/centos/docker-ce.repo
grabbing file https://download.docker.com/linux/centos/docker-ce.repo to /etc/yum.repos.d/docker-ce.repo
repo saved to /etc/yum.repos.d/docker-ce.repo
$ sudo yum erase docker-engine-selinux
[root@pqalnpmas301 npmo-server]# sudo yum erase docker-engine-selinux
Loaded plugins: langpacks
Resolving Dependencies
--> Running transaction check
---> Package docker-engine-selinux.noarch 0:17.05.0.ce-1.el7.centos will be erased
--> Finished Dependency Resolution
Dependencies Resolved
==========================================================================================================================================================
Package Arch Version Repository Size
==========================================================================================================================================================
Removing:
docker-engine-selinux noarch 17.05.0.ce-1.el7.centos @dockerrepo 43 k
Transaction Summary
==========================================================================================================================================================
Remove 1 Package
Installed size: 43 k
Is this ok [y/N]: y
Downloading packages:
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Erasing : docker-engine-selinux-17.05.0.ce-1.el7.centos.noarch 1/1
Verifying : docker-engine-selinux-17.05.0.ce-1.el7.centos.noarch 1/1
Removed:
docker-engine-selinux.noarch 0:17.05.0.ce-1.el7.centos
$ yum update
$ yum install container-selinux
Loaded plugins: langpacks
No package container-selinux available.
Error: Nothing to do
$ yum install -y ftp://195.220.108.108/linux/centos/7.3.1611/extras/x86_64/Packages/container-selinux-2.10-2.el7.noarch.rpm
Loaded plugins: langpacks
container-selinux-2.10-2.el7.noarch.rpm
Loaded plugins: langpacks
Examining container-selinux-2.10-2.el7.noarch.rpm: 2:container-selinux-2.10-2.el7.noarch
Marking container-selinux-2.10-2.el7.noarch.rpm as an update to 2:container-selinux-2.9-4.el7.noarch
Resolving Dependencies
--> Running transaction check
---> Package container-selinux.noarch 2:2.9-4.el7 will be updated
---> Package container-selinux.noarch 2:2.10-2.el7 will be an update
--> Finished Dependency Resolution
Dependencies Resolved
============================================================================================================================================================================
Package Arch Version Repository Size
============================================================================================================================================================================
Updating:
container-selinux noarch 2:2.10-2.el7 /container-selinux-2.10-2.el7.noarch 32 k
Transaction Summary
============================================================================================================================================================================
Upgrade 1 Package
Total size: 32 k
Downloading packages:
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Updating : 2:container-selinux-2.10-2.el7.noarch 1/2
Cleanup : 2:container-selinux-2.9-4.el7.noarch 2/2
Verifying : 2:container-selinux-2.10-2.el7.noarch 1/2
Verifying : 2:container-selinux-2.9-4.el7.noarch 2/2
Updated:
container-selinux.noarch 2:2.10-2.el7
Complete!
$ yum-config-manager --enable docker-ce-edge
Loaded plugins: langpacks
=========================================================================== repo: docker-ce-edge ===========================================================================
[docker-ce-edge]
async = True
bandwidth = 0
base_persistdir = /var/lib/yum/repos/x86_64/7Server
baseurl = https://download.docker.com/linux/centos/7/x86_64/edge
cache = 0
cachedir = /var/cache/yum/x86_64/7Server/docker-ce-edge
check_config_file_age = True
compare_providers_priority = 80
cost = 1000
deltarpm_metadata_percentage = 100
deltarpm_percentage =
enabled = True
enablegroups = True
exclude =
failovermethod = priority
ftp_disable_epsv = False
gpgcadir = /var/lib/yum/repos/x86_64/7Server/docker-ce-edge/gpgcadir
gpgcakey =
gpgcheck = True
gpgdir = /var/lib/yum/repos/x86_64/7Server/docker-ce-edge/gpgdir
gpgkey = https://download.docker.com/linux/centos/gpg
hdrdir = /var/cache/yum/x86_64/7Server/docker-ce-edge/headers
http_caching = all
includepkgs =
ip_resolve =
keepalive = True
keepcache = False
mddownloadpolicy = sqlite
mdpolicy = group:small
mediaid =
metadata_expire = 21600
metadata_expire_filter = read-only:present
metalink =
minrate = 0
mirrorlist =
mirrorlist_expire = 86400
name = Docker CE Edge - x86_64
old_base_cache_dir =
password =
persistdir = /var/lib/yum/repos/x86_64/7Server/docker-ce-edge
pkgdir = /var/cache/yum/x86_64/7Server/docker-ce-edge/packages
proxy = False
proxy_dict =
proxy_password =
proxy_username =
repo_gpgcheck = False
retries = 10
skip_if_unavailable = False
ssl_check_cert_permissions = True
sslcacert =
sslclientcert =
sslclientkey =
sslverify = True
throttle = 0
timeout = 30.0
ui_id = docker-ce-edge/x86_64
ui_repoid_vars = releasever,
basearch
username =
$ yum -y install docker-ce
Loaded plugins: langpacks
docker-ce-edge | 2.9 kB 00:00:00
docker-ce-stable | 2.9 kB 00:00:00
Resolving Dependencies
--> Running transaction check
---> Package docker-ce.x86_64 0:17.06.0.ce-1.el7.centos will be installed
--> Finished Dependency Resolution
Dependencies Resolved
============================================================================================================================================================================
Package Arch Version Repository Size
============================================================================================================================================================================
Installing:
docker-ce x86_64 17.06.0.ce-1.el7.centos docker-ce-edge 21 M
Transaction Summary
============================================================================================================================================================================
Install 1 Package
Total download size: 21 M
Installed size: 74 M
Downloading packages:
warning: /var/cache/yum/x86_64/7Server/docker-ce-edge/packages/docker-ce-17.06.0.ce-1.el7.centos.x86_64.rpm: Header V4 RSA/SHA512 Signature, key ID 621e9f35: NOKEY0:00 ETA
Public key for docker-ce-17.06.0.ce-1.el7.centos.x86_64.rpm is not installed
docker-ce-17.06.0.ce-1.el7.centos.x86_64.rpm | 21 MB 00:00:06
Retrieving key from https://download.docker.com/linux/centos/gpg
Importing GPG key 0x621E9F35:
Userid : "Docker Release (CE rpm) <docker@docker.com>"
Fingerprint: 060a 61c5 1b55 8a7f 742b 77aa c52f eb6b 621e 9f35
From : https://download.docker.com/linux/centos/gpg
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Installing : docker-ce-17.06.0.ce-1.el7.centos.x86_64 1/1
Verifying : docker-ce-17.06.0.ce-1.el7.centos.x86_64 1/1
Installed:
docker-ce.x86_64 0:17.06.0.ce-1.el7.centos
Complete!
@marcellodesales The docs page lists instructions for adding the correct repos.
Docker does not host container-selinux
. This in on the RHEL/CentOS extras repo.
yum install -y ftp://195.220.108.108/linux/centos/7.3.1611/extras/x86_64/Packages/container-selinux-2.10-2.el7.noarch.rpm Loaded plugins: fastestmirror, refresh-packagekit, security Setting up Install Process container-selinux-2.10-2.el7.noarch.rpm | 28 kB 00:00 Examining /var/tmp/yum-root-3CtEPQ/container-selinux-2.10-2.el7.noarch.rpm: 2:container-selinux-2.10-2.el7.noarch Marking /var/tmp/yum-root-3CtEPQ/container-selinux-2.10-2.el7.noarch.rpm to be installed Loading mirror speeds from cached hostfile
I'm using Redhat 7.3
from standard aws image. Red Hat Enterprise Linux Server 7.3 (Maipo)
, kernel 3.10.0-514.21.2.el7.x86_64
.
I had this issue and @nderzhak response solved it for me.
yum install -y yum-utils device-mapper-persistent-data lvm2
yum-config-manager \
--add-repo \
https://download.docker.com/linux/centos/docker-ce.repo
yum-config-manager --enable docker-ce-edge
yum makecache fast
yum -y --enablerepo=rhui-REGION-rhel-server-extras install container-selinux
yum -y install docker-ce
I had to enable epel-testing as there were some container-selinux, policycoreutils, etc. and underlying dependencies not available in extra for docker-ce-17.06....
Workaround for Fedora 26:
[as root or sudo]
# first, uninstall existing docker versions and remove the old repo:
dnf remove docker docker-common docker-selinux docker-engine-selinux docker-engine
rm /etc/yum.repos.d/docker.repo
# then get the new docker-ce repo:
dnf -y install dnf-plugins-core
dnf config-manager --add-repo https://download.docker.com/linux/fedora/docker-ce.repo
dnf makecache
# list packages for F25, choose a version, install it, start services
dnf list docker-ce.x86_64 --releasever=25 --showduplicates | sort -r
dnf install --releasever=25 docker-ce-17.06.0.ce-1.fc25
systemctl status docker.service
systemctl enable docker.service
systemctl start docker.service
systemctl status docker.service
# verify operation
docker ps -a
docker images
docker version
docker info
I think this approach is probably the most straightforward for Fedora, because when the F26 packages are provided , you can just drop the '--releasever=25' for interacting with the repo, no uninstall should be necessary. As a matter of fact, it should "just work" with 'dnf update' once the new packages show up.
You may find it necessary to manually install container-selinux to before installing the docker-ce package:
dnf install container-selinux
For RHEL 7 (tested on 7.3) you just need to enable the server extras rpms repo: subscription-manager repos --enable=rhel-7-server-extras-rpms
This issue exists on Centos as well as RHEL:
$ uname -sr
Linux 3.10.0-514.21.1.el7.x86_64
$ cat /etc/centos-release
CentOS Linux release 7.3.1611 (Core)
$ sudo yum-config-manager --enable extras
When I try to install docker-ce I get this error:
Error: Package: docker-ce-17.06.1.ce-1.el7.centos.x86_64 (docker-ce-stable)
Requires: container-selinux >= 2.9
@cpuguy83 The Docker EE documentation is still broken for the "Install from a package" section: https://docs.docker.com/engine/installation/linux/docker-ee/rhel/#install-from-a-package
There is this notice:
Note: If you have trouble with selinux using the packages under the 7 directory, try choosing the version-specific directory instead, such as 7.3.
But this did not resolve the issue for me; I still get Requires: container-selinux >= 2.9
@AlecBenzer I've confirmed that these instructions work.
Do you have a RHEL subscription enabled? Did you have it enabled when you enabled the extras repo? Are you on a cloud provider? Did you follow the cloud-provider specific setup on that install page?
Did you have it enabled when you enabled the extras repo?
There is no mention of enabling the extras repo under the "Install from a package" section. If this needs to be done even in the "Install from a package" case, then the instructions to enable the extras repo should probably be duplicated in both sections, or moved to the earlier "Prerequisites" section.
But I feel like it somewhat violates the spirit of the "Install from a package" setup if you need to enable an extras repo. The comment that installing from a package "is useful in situations such as installing Docker on air-gapped systems with no access to the internet" no longer applies if we need to fetch a package from a remote repository.
cc @mstanleyjones https://github.com/docker/for-linux/issues/20#issuecomment-326329939
I mean, if it violates the intent of "install from a package" then I'm not sure what to do to help. Packages have dependencies and we have no way to predict what you may or may not have already installed on your system before installing Docker.
I'm happy to update the doc to specify that you should install the extras
repository or manually satisfy dependencies as they come up.
@mstanleyjones @AlecBenzer - I would recommend adding a footnote that mentions this version, unlike previous versions, now requires the extras (not Epel*) repository (which should be enabled by default). For the casual user looking to try out Docker, the confusion over Epel/ Extras/ Centos/ Redhat etc. might be enough to scare them away.
See the above merged PR where this is addressed in the docs.
In RedHat 7 just subscribe to extras
subscription-manager repos --enable rhel-7-server-extras-rpms
and do yum update
and try installing docker now
@hatdropper1977 as I mentioned above, on RedHat extras repo is enough, but on Centos you need testing repo to be added and then is resolved....
@archenroot if the docs need additional changes, could you open a pull request in the documentation repository? (see the pull request linked above for the file where changes need to be made)
https://docs.docker.com/engine/installation/linux/centos/#install-using-the-repository
Expected behavior
No error with
sudo yum install docker-ce
Actual behavior
Information
Steps to reproduce the behavior
Follow instructions to install docker on centos 7
https://docs.docker.com/engine/installation/linux/centos/#install-using-the-repository