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Archive for July, 2018

Docker on Fedora 27

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This walks you through the steps to install the Community Edition of Docker on Fedora 27. If you’ve been living under a rock for a few years, Docker is an open source container virtualization software.

Docker or Docker Community Edition is a necessary step if you want to install something like Microsoft’s SQL Server on Fedora because only these are supported platforms:

  • Red Hat Enterprise Linux 7.3 or 7.4
  • SUSE Linux Enterprise Server V12 SP2
  • Ubuntu 16.04
  • Docker Engine 1.8+

The first step requires you to add the docker-ce repo to your instance with he curl utility, which should already be installed in most cases. You can check whether the curl utility is available with the which command, like:

which -a curl

If installed it should return the following:

/usr/bin/curl
/bin/curl

You add the docker-ce repo with the following curl command:

sudo curl -o /etc/yum.repos.d/docker-ce.repo https://download.docker.com/linux/fedora/docker-ce.repo

You should see something like the following if it was successful:

  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100  2544  100  2544    0     0   2544      0  0:00:01 --:--:--  0:00:01 12913

Next, you can install docker-ce with the following yum command or if you prefer use the dnf utility:

sudo yum install -y docker-ce

It should produce a log file like the one provided, which you can see by clicking the Display detailed console link that expands the page to show you the console details.

Display detailed console →

Docker CE Stable - x86_64                                        30 kB/s | 5.9 kB     00:00    
Last metadata expiration check: 0:00:00 ago on Thu 05 Jul 2018 06:56:36 PM MDT.
Dependencies resolved.
================================================================================================
 Package                Arch        Version                         Repository             Size
================================================================================================
Installing:
 docker-ce              x86_64      18.03.1.ce-1.fc27               docker-ce-stable       35 M
Installing dependencies:
 container-selinux      noarch      2:2.65-1.gitbf5b26b.fc27        updates                41 k
 
Transaction Summary
================================================================================================
Install  2 Packages
 
Total download size: 35 M
Installed size: 150 M
Downloading Packages:
(1/2): container-selinux-2.65-1.gitbf5b26b.fc27.noarch.rpm      133 kB/s |  41 kB     00:00    
(2/2): docker-ce-18.03.1.ce-1.fc27.x86_64.rpm                    20 MB/s |  35 MB     00:01    
------------------------------------------------------------------------------------------------
Total                                                            14 MB/s |  35 MB     00:02     
warning: /var/cache/dnf/docker-ce-stable-8cf73e63b8c72e93/packages/docker-ce-18.03.1.ce-1.fc27.x86_64.rpm: Header V4 RSA/SHA512 Signature, key ID 621e9f35: NOKEY
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/fedora/gpg
Key imported successfully
Running transaction check
Transaction check succeeded.
Running transaction test
Transaction test succeeded.
Running transaction
  Preparing        :                                                                        1/1 
  Installing       : container-selinux-2:2.65-1.gitbf5b26b.fc27.noarch                      1/2 
  Running scriptlet: container-selinux-2:2.65-1.gitbf5b26b.fc27.noarch                      1/2 
neverallow check failed at /var/lib/selinux/targeted/tmp/modules/100/base/cil:9006
  (neverallow base_typeattr_7 unlabeled_t (file (entrypoint)))
    <root>
    allow at /var/lib/selinux/targeted/tmp/modules/200/container/cil:1489
      (allow spc_t unlabeled_t (file (entrypoint)))
    <root>
    allow at /var/lib/selinux/targeted/tmp/modules/100/sandboxX/cil:866
      (allow sandbox_x_domain exec_type (file (entrypoint)))
    <root>
    allow at /var/lib/selinux/targeted/tmp/modules/100/virt/cil:1669
      (allow virtd_lxc_t exec_type (file (entrypoint)))
    <root>
    allow at /var/lib/selinux/targeted/tmp/modules/100/virt/cil:2060
      (allow svirt_sandbox_domain exec_type (file (entrypoint)))
 
Failed to generate binary
/usr/sbin/semodule:  Failed!
  Running scriptlet: docker-ce-18.03.1.ce-1.fc27.x86_64                                     2/2 
  Installing       : docker-ce-18.03.1.ce-1.fc27.x86_64                                     2/2 
  Running scriptlet: docker-ce-18.03.1.ce-1.fc27.x86_64                                     2/2 
Running as unit: run-rb873740b51a44061abb2c9e197871e4b.service
  Verifying        : docker-ce-18.03.1.ce-1.fc27.x86_64                                     1/2 
  Verifying        : container-selinux-2:2.65-1.gitbf5b26b.fc27.noarch                      2/2 
 
Installed:
  docker-ce.x86_64 18.03.1.ce-1.fc27      container-selinux.noarch 2:2.65-1.gitbf5b26b.fc27     
 
Complete!

After installing docker-ce, you can check it with the following systemctl command:

sudo systemctl status docker

It should show service is disabled (default) and inactive:

● docker.service - Docker Application Container Engine
   Loaded: loaded (/usr/lib/systemd/system/docker.service; disabled; vendor preset: disabled)
   Active: inactive (dead)
     Docs: https://docs.docker.com

This indicates everything installed correctly, now you need to enable the docker service with this systemctl command:

sudo systemctl enable docker

It should show that the docker service is enabled and inactive:

● docker.service - Docker Application Container Engine
   Loaded: loaded (/usr/lib/systemd/system/docker.service; enabled; vendor preset: disabled)
   Active: inactive (dead)
     Docs: https://docs.docker.com

You start the docker service with this systemctl command:

sudo systemctl start docker

It should show that the service is enabled and inactive:

● docker.service - Docker Application Container Engine
   Loaded: loaded (/usr/lib/systemd/system/docker.service; enabled; vendor preset: disabled)
   Active: active (running) since Thu 2018-07-05 19:22:25 MDT; 4s ago
     Docs: https://docs.docker.com
 Main PID: 107768 (dockerd)
    Tasks: 16
   Memory: 35.8M
      CPU: 140ms
   CGroup: /system.slice/docker.service
           ├─107768 /usr/bin/dockerd
           └─107772 docker-containerd --config /var/run/docker/containerd/containerd.toml
 
Jul 05 19:22:25 localhost.localdomain dockerd[107768]: time="2018-07-05T19:22:25.350914727-06:00
Jul 05 19:22:25 localhost.localdomain dockerd[107768]: time="2018-07-05T19:22:25.352583385-06:00
Jul 05 19:22:25 localhost.localdomain dockerd[107768]: time="2018-07-05T19:22:25.352718174-06:00
Jul 05 19:22:25 localhost.localdomain dockerd[107768]: time="2018-07-05T19:22:25.353419088-06:00
Jul 05 19:22:25 localhost.localdomain dockerd[107768]: time="2018-07-05T19:22:25.632193965-06:00
Jul 05 19:22:25 localhost.localdomain dockerd[107768]: time="2018-07-05T19:22:25.823732094-06:00
Jul 05 19:22:25 localhost.localdomain dockerd[107768]: time="2018-07-05T19:22:25.893601936-06:00
Jul 05 19:22:25 localhost.localdomain dockerd[107768]: time="2018-07-05T19:22:25.894351396-06:00
Jul 05 19:22:25 localhost.localdomain systemd[1]: Started Docker Application Container Engine.
Jul 05 19:22:25 localhost.localdomain dockerd[107768]: time="2018-07-05T19:22:25.907087735-06:00
lines 1-22/22 (END)

A CNTL+C dismisses the open log file. As usual, I hope this helps those trying to accomplish the task for the first time.

Written by maclochlainn

July 5th, 2018 at 7:36 pm

Posted in Docker,Fedora,Linux,Unix

Tagged with , ,