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ansible/README.md
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# ANSIBLE
## Provisionning
## How to proceed
1. Need a public IP address
2. Deploy Debian sid/buster
3. Add a DNS entry like xxxx.machine.deuxfleurs.fr A 0.0.0.0 in Cloudflare + Havelock
4. Setup the fqdn in /etc/hosts (127.0.1.1 xxxx.machine.deuxfleurs.fr)
5. Switch the SSH port to the port 110
6. Add the server to the ./production file
7. Reboot machine
8. Deploy Ansible
9. Check that everything works as intended
10. Update NS 1.cluster.deuxfleurs.fr
## Useful commands
Show every variables collected by Ansible for a given host:
```
ansible -i production villequin.machine.deuxfleurs.fr -m setup
```
Run playbook for only one host:
```
ansible-playbook -i production --limit villequin.machine.deuxfleurs.fr site.yml
```
Dump hostvars:
```
ansible -m debug villequin.machine.deuxfleurs.fr -i ./production -a "var=hostvars"
```
Deploy only one tag:
```
ansible-playbook -i production site.yml --tags "container"
```
Redeploy everything:
```
ansible-playbook -i production site.yml
```
Upgrade packages and force overwirte to fix bad packing done by GlusterFS:
```
apt-get -o Dpkg::Options::="--force-overwrite" dist-upgrade -y
```
For each machine, **one by one** do:
- Check that cluster is healthy
- Run `ansible-playbook -i production --limit <machine> site.yml`
- Reboot
- Check that cluster is healthy

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## Provisionning
1. Need a public IP address
2. Deploy Debian sid/buster
3. Add a DNS entry like xxxx.machine.deuxfleurs.fr A 0.0.0.0 in Cloudflare + Havelock
4. Setup the fqdn in /etc/hosts (127.0.1.1 xxxx.machine.deuxfleurs.fr)
5. Switch the SSH port to the port 110
6. Add the server to the ./production file
7. Reboot machine
8. Deploy Ansible
9. Check that everything works as intended
10. Update NS 1.cluster.deuxfleurs.fr
## Useful commands
Show every variables collected by Ansible for a given host:
```
ansible -i production villequin.machine.deuxfleurs.fr -m setup
```
Run playbook for only one host:
```
ansible-playbook -i production --limit villequin.machine.deuxfleurs.fr site.yml
```
Dump hostvars:
```
ansible -m debug villequin.machine.deuxfleurs.fr -i ./production -a "var=hostvars"
```
Deploy only one tag:
```
ansible-playbook -i production site.yml --tags "container"
```
Redeploy everything:
```
ansible-playbook -i production site.yml
```
Upgrade packages and force overwirte to fix bad packing done by GlusterFS:
```
apt-get -o Dpkg::Options::="--force-overwrite" dist-upgrade -y
```