Use caddy instead of socat for http proxying

roles/caddy_socket_proxy/meta/argument_specs.yaml

@@ -0,0 +1,30 @@
+---
+argument_specs:
+  main:
+    description: >-
+      Sets up a caddy container and a systemd socket unit, forwarding traffic from it to
+      target container
+    options:
+      caddy_socket_proxy_service_name:
+        description: Name of the caddy service, used for systemd unit and container naming
+        type: str
+        required: true
+      caddy_socket_proxy_target_container:
+        description: Name of the container to forward traffic to
+        type: str
+        required: false
+        default: "{{ caddy_socket_proxy_service_name }}"
+      caddy_socket_proxy_target_http_port:
+        description: Port on the target container to forward traffic to
+        type: int
+        required: true
+      caddy_socket_proxy_container_ip:
+        description: IP address to assign to the caddy container.
+        type: str
+        required: false
+        default: ""
+      caddy_socket_proxy_auto_update:
+        description: Whether to automatically update the caddy container
+        type: bool
+        required: false
+        default: true