These files were used to create the demo given at DevConf.cz 2021.
Note that there is no inventory/inventory.yml file. I create this dynamically
from my OpenStack demo environment. The basic idea is that you need to have 3
hosts, and pick one of them to be the logging, metrics, and NFS server.
Depending on how you deployed the machines, you might not need ansible_host if
your hosts like host1.example.com resolve both from the controller host and
the managed hosts. ansible_user is some user created during node provisioning
time. See the demo-heat-template.yaml for how I created this user and
specified the ssh key to use and the sudo setup for ansible_become. I also
created the storage data volume using the demo-heat-template.yaml and got the
device name from the template output. The logging_domain should be a domain
which matches all of the client hosts. One more thing - for the sake of sanity I
allowed all connections from all ports in my OpenStack cluster - see
demo-heat-template.yaml demo_security_group - depending on your provisioning
system, you may have to allow specified ports to be opened between your nodes. I
used extra_setup.yml to create the ethernet devices used for the network
role.
all:
hosts:
host1.example.com:
ansible_host: xxx.xxx.xxx.xxx
ansible_ssh_common_args: -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no
ansible_user: demo
ansible_become: true
host2.example.com:
ansible_host: xxx.xxx.xxx.xxx
ansible_ssh_common_args: -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no
ansible_user: demo
ansible_become: true
host3.example.com:
ansible_host: xxx.xxx.xxx.xxx
ansible_ssh_common_args: -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no
ansible_user: demo
ansible_become: true
vars:
metrics_server: host1.example.com
logging_server: host1.example.com
logging_domain: example.com
vpn_connections:
- hosts:
host1.example.com:
hostname: host1.example.com
host2.example.com:
hostname: host2.example.com
host3.example.com:
hostname: host3.example.com
auto: start
rekey: true
children:
logging_servers:
hosts:
host1.example.com:
metrics_servers:
hosts:
host1.example.com:
vars:
metrics_monitored_hosts:
- host2.example.com
- host3.example.com
nfs_servers:
hosts:
host1.example.com:
vars:
storage_data_volume: /dev/vdb