{{tag>[fedora docker]}}
=====Fedora 20 Docker=====

====Install and start Docker====
From: [[http://goodsquishy.com/2014/01/playing-with-docker-on-fedora-20/]]

<code>yum install docker-io
systemctl start docker
systemctl enable docker</code>

  * Build a root file system for the container<code>yum --installroot=/root/bbroot --releasever=20 install busybox</code>
  * Remove cached data <code>cd /root/bbroot/
rm -rf ./var/cache/yum/* ./var/lib/yum/yumdb/* ./var/lib/yum/history/* ./var/log/yum.log</code>
  * Build symlinks to busybox for the utilities it provides <code>mkdir bin
for linkname in $(./sbin/busybox --list) ; do ln -s /sbin/busybox bin/$linkname ; done</code>
  * Import it into docker as a new image <code>tar -czf - . | docker import - busybox:v1</code>

And your done, you can now start your new container with the docker run command
<code>docker images
docker run -t -i --name busybox busybox:v1 /bin/sh</code>

====Install Fedora container from registry====
<code>docker pull fedora
docker images
docker run -t -i fedora:20 /bin/bash </code>

====Create Fedora container yourself====
<code>yum --installroot=/root/fedroot --releasever=20 install yum fedora-release coreutils
cd /root/fedroot/
rm -rf ./var/cache/yum/* ./var/lib/yum/yumdb/* ./var/lib/yum/history/* ./var/log/yum.log
tar -czf - . | docker import - myfedora:v1
docker run -t -i myfedora:v1 /bin/sh</code>

====Remove untagged container====
  docker rmi $(docker images | grep "^<none>" | awk "{print $3}") 
  
====Attach running container====
<code>
docker ps -a
docker start 344db3753522

#or by name
docker start busybox

docker attach busybox
</code>

====Networking====
===Show bridge===
<code>yum install bridge-utils -y

brctl show
bridge name     bridge id               STP enabled     interfaces
docker0         8000.e2735138505f       no              veth64a0
</code>