netbox: move NetBox from NixOS to Ansible

Also introduce netbox_hosts group for applying netbox role to multiple
hosts.

inventories/chaosknoten/host_vars/netbox.yaml

@@ -0,0 +1,16 @@
+netbox__version: "v4.1.7"
+netbox__db_password: "{{ lookup('community.general.passwordstore', 'noc/vm-secrets/chaosknoten/netbox/DATABASE_PASSWORD', create=false, missing='error') }}"
+netbox__config: "{{ lookup('ansible.builtin.template', 'resources/chaosknoten/netbox/netbox/configuration.py.j2') }}"
+netbox__custom_pipeline_oidc_group_and_role_mapping: true
+
+nginx__version_spec: ""
+nginx__configurations:
+  - name: netbox.hamburg.ccc.de
+    content: "{{ lookup('ansible.builtin.file', 'resources/chaosknoten/netbox/nginx/netbox.hamburg.ccc.de.conf') }}"
+
+certbot__version_spec: ""
+certbot__acme_account_email_address: j+letsencrypt-ccchh@jsts.xyz
+certbot__certificate_domains:
+  - "netbox.hamburg.ccc.de"
+certbot__new_cert_commands:
+  - "systemctl reload nginx.service"