service: Allow specifying container hostname

roles/service/defaults/main.yaml

@@ -9,6 +9,7 @@ service_proxy_pass_host_header: true
 service_proxy_auth_type: none
 
 service_container_ip: ""
+service_container_hostname: ""
 service_container_additional_networks: []
 service_container_user: ""
 service_container_publish_ports: []

roles/service/meta/argument_specs.yaml

@@ -82,6 +82,11 @@ argument_specs:
         type: str
         required: false
         default: ""
+      service_container_hostname:
+        description: Hostname to set inside the container.
+        type: str
+        required: false
+        default: ""
       service_container_additional_networks:
         description: >-
           A list of additional podman networks for the service container (in

roles/service/tasks/main.yaml

@@ -44,6 +44,7 @@
     container_devices: "{{ service_container_devices }}"
     container_publish_ports: "{{ _service_container_publish_ports }}"
     container_networks: "{{ _service_container_networks }}"
+    container_hostname: "{{ service_container_hostname }}"
     container_secrets: "{{ _service_container_secrets }}"
     container_env: "{{ service_container_env }}"
     container_add_capabilities: "{{ service_container_add_capabilities }}"