ansible with docker dynamic inventory

So, I have a few dockers. Every now and then I want to run some command on all of them. Doing ‘docker exec’ is tiresome. I found this neat solution with ansible that I thought I should share with you.

To get started, you need to have the “docker.py” script. This script will be used as python script inventory for ansible. So, use the following command and get the script:

Sandbox apache (httpd) for better security.

Apache/httpd is something which you would like to have contained. And now fedora provides a native way/mechanism to to so with virt-sandbox-service. With this, you can create a virtualized sanbox service and then connect/list/manage such with virsh.

We will be using LXC.

Basically its couple of commands and you have a contained service running.

# List all the containers
virsh -c lxc:/// list

# Create the sandbox, all default parameters. Will take dhcp address.
virt-sandbox-service create -C  --username amitag -u httpd.service httpd_conta

# Create the container with static IP.
virt-sandbox-service create -C  --username amitag -u httpd.service -N \
address=192.168.122.11/24%192.168.122.255  httpd_conta#Enable and start the service.
virt-sandbox-service start httpd_conta
virt-sandbox-service enable httpd_conta#Delete the container if not required any more.
virt-sandbox-service delete  httpd_conta