Merge pull request 'Add a docker registry' (!20) from docker-registry into master

Reviewed-on: https://gitea.n39.eu/Netz39_Admin/netz39-infra-ansible/pulls/20

tau.yml

@@ -5,6 +5,9 @@
   vars:
     ansible_python_interpreter: /usr/bin/python3
 
+    docker_registry_port: 5000 # this is the reg standard port
+    docker_registry_domain: "docker.n39.eu"
+
   roles:
     - role: docker_setup
     - role: apache
@@ -31,6 +34,8 @@
             deploy_challenge_hook: "/bin/systemctl restart apache2"
           - name: "mysql.adm.netz39.de"
             deploy_challenge_hook: "/bin/systemctl restart apache2"
+          - name: "{{ docker_registry_domain }}"
+            deploy_challenge_hook: "/bin/systemctl restart apache2"
 
     - name: Setup forward site reservierung.netz39.de
       include_role:
@@ -68,3 +73,42 @@
       vars:
         site_name: mysql.adm.netz39.de
         proxy_port: 9001
+
+
+    - name: Check if Docker Registry auth dir exists
+      ansible.builtin.stat:
+        path: "/srv/docker/registry/auth"
+      register: docker_dir
+    - name: Fail if docker registry data dir does not exist
+      ansible.builtin.fail:
+        msg: "Docker Registry auth dir is missing, please restore from the backup!"
+      when: not docker_dir.stat.exists
+    - name: Ensure the Docker Registry data directory exists
+      # This may not be part of the backup
+      file:
+        path: "/srv/docker/registry/data"
+
+    - name: Setup Docker Registry Container
+      docker_container:
+        name: registry
+        image: "registry:2"
+        pull: true
+        state: started
+        restart_policy: unless-stopped
+        detach: yes
+        ports:
+        - 127.0.0.1:{{ docker_registry_port }}:{{ docker_registry_port }}
+        env:
+          REGISTRY_HTTP_HOST: "https://{{ docker_registry_domain }}"
+          REGISTRY_AUTH_HTPASSWD_REALM: "Netz39 Docker Registry"
+          REGISTRY_AUTH_HTPASSWD_PATH: "/auth/htpasswd"
+        volumes:
+        - "/srv/docker/registry/data:/var/lib/registry:rw"
+        - "/srv/docker/registry/auth:/auth:rw"
+
+    - name: Setup proxy site for the Docker Registry
+      include_role:
+        name: setup-http-site-proxy
+      vars:
+        site_name: "{{ docker_registry_domain }}"
+        proxy_port: "{{ docker_registry_port }}"