An example of ansible configuration to install docker swarm and create a cluster with masters and workers
To run a particular configuration:
ansible-playbook -i inventories/ ansible-learning.yml
If you need to run just part of the tasks, you can use tags
Available tags in this configuration is: docker-swarm-install and docker-swarm-config
for example to run just the cluster configuration tasks, use the docker-swarm-config tag:
ansible-playbook -i inventories/ ansible-learning.yml --tags 'docker-swarm-config'
You need to add all of your cluster nodes to the inventory file. and then specify local-ip and node role of each node as a configuration variable
inventory file example:
[cluster]
manager_1 ansible_host=3.2.1.4 local_ip=192.168.1.1 role=manager
manager_2 ansible_host=3.2.1.5 local_ip=192.168.1.2 role=manager
manager_3 ansible_host=3.2.1.6 local_ip=192.168.1.3 role=manager
manager_4 ansible_host=3.2.1.7 local_ip=192.168.1.4 role=manager
worker_1 ansible_host=3.2.1.8 local_ip=192.168.1.5 role=worker
worker_2 ansible_host=3.2.1.9 local_ip=192.168.1.6 role=worker
This ansible configuration can handle debian based and redhat based linux distros (default value: debian)
You can change the distro value in the vars section in the playbook, or change the default value in tasks > defaults folder