netz39-infra-ansible/README.md

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# Ansible configuration for the Netz39 infrastructure
This call lists all hosts defined in the inventory:
```bash
ansible all --list-hosts
```
## Setup
```bash
ansible-galaxy install -r requirements.yml
```
## Call with
```bash
ansible-playbook --ask-vault-pass main.yml
```
You need to provide a user with sudo rights and the vault password.
## Verify Changes
```bash
ansible-lint main.yml
ansible-playbook --ask-vault-pass main.yml --check --diff
```
## HTTPS ingress configuration
HTTPS ingress is controlled by the server [holmium](https://wiki.netz39.de/admin:servers:holmium) and forwarded to the configured servers.
To set up a new HTTPS vhost, the following steps need to be taken:
1. Select a domain (for internal services we use sub-domains of `.n39.eu`).
2. Create an external CNAME from this domain to `dyndns.n39.eu`.
3. Create an internal DNS entry in the [Descartes DNS config](https://gitea.n39.eu/Netz39_Admin/config.descartes/src/branch/prepare/dns_dhcp.txt). This is usually an alias on an existing server.
4. Add the entry to the [holmium playbook](holmium.yml).
5. Set up Dehydrated and vhost on the target host, e.g. using `setup-http-site-proxy`.
Do not forget to execute all playbooks with relevant changes.