Docker Cookbook

210 | Chapter 7: The Docker Ecosystem: Tools

---

├── ansible.cfg
├── dock.yml
├── inventory
├── solo
│ ├── Vagrantfile
│ └── dock.yml
└── wordpress.yml
$ vagrant up
The Nginx playbook shown in the solution section is in the 
dock.yml
file. To start this
container using Ansible, run the playbook. Once it finishes, open your browser at
http://192.168.33.10
and you will see the welcome screen of Nginx. You can also con‐
nect to the VM with 
vagrant ssh
and check the running container with the usual
docker ps
command.
$ ansible-playbook -u vagrant dock.yml
PLAY [nginx] ******************************************************************
GATHERING FACTS ***************************************************************
ok: [192.168.33.10]
TASK: [Run nginx container] ***************************************************
changed: [192.168.33.10]
PLAY RECAP ********************************************************************
192.168.33.10 : ok=2 changed=1 unreachable=0 failed=0
You can kill this Nginx container with 
docker kill
within the virtual machine or run
a playbook that sets the state of the container to 
killed
:
- hosts: nginx
tasks:
- name: Kill nginx container
docker: image=nginx:latest detach=true ports=80:80 state=killed
If you want to try a more complex example, check the WordPress playbook 
word‐
press.yml
. You have deployed WordPress several times already (see 
Recipe 1.15
 or
Recipe 1.16
). Run the playbook and open your browser at 
http://192.168.33.10
 and
enjoy WordPress once again. (You will need to have killed any container using port 80
on the host; otherwise, you will get a port conflict error).
$ ansible-playbook -u vagrant wordpress.yml
PLAY [wordpress] **************************************************************
GATHERING FACTS ***************************************************************
ok: [192.168.33.10]
TASK: [Docker pull mysql] *****************************************************
changed: [192.168.33.10]
TASK: [Docker pull wordpress] *************************************************