An Ansible role used to create and start docker containers for each inventory host used in a play. Useful for testing.
Blog post on how to use provision_docker to test roles.
Recomended docker images.
chrismeyers/centos6
chrismeyers/centos7
chrismeyers/ubuntu12.04
ubuntu-upstart:14.04
Note: The above listed images Dockerfiles are designed to run an init systems and openssh.
Take a look at .travis.yml to see how to test your role using travis-ci.
provision_docker relies on being able to ssh to containers. Thus, the ip of the container must be accessible (a route must exist). If your using docker toolbox on OS X + virtualbox containers are not routed to the host. Run the below commands to be add a route to the containers in the guest VM.
/usr/sbin/scutil -w State:/Network/Interface/vboxnet0/IPv4 -t 0
sudo /sbin/route -n add -net 172.17.0.0 -netmask 255.255.0.0 -gateway $(docker-machine ip)
The route does not persist across reboots. To persist the changes edit /Library/LaunchDaemons/com.docker.route.plist
<?xml version='1.0' encoding='UTF-8'?>
<!DOCTYPE plist PUBLIC '-//Apple//DTD PLIST 1.0//EN' 'http://www.apple.com/DTDs/PropertyList-1.0.dtd'>
<plist version='1.0'>
<dict>
<key>Label</key>
<string>com.docker.route</string>
<key>ProgramArguments</key>
<array>
<string>bash</string>
<string>-c</string>
<!-- You need to adapt the vboxnet0 to the interface that suits your setup, use ifconfig to find it -->
<string>/usr/sbin/scutil -w State:/Network/Interface/vboxnet0/IPv4 -t 0;sudo /sbin/route -n add -net 172.17.0.0 -netmask 255.255.0.0 -gateway 192.168.99.100</string>
</array>
<key>KeepAlive</key>
<false/>
<key>RunAtLoad</key>
<true/>
<key>LaunchOnlyOnce</key>
<true/>
</dict>
</plist>
sudo /sbin/route -n add -net 172.17.0.0 -netmask 255.255.0.0 -gateway $(docker-machine ip default)