Merge pull request moby#51586 from robmry/ep_options_exposed_ports

PublishAllPorts: create port mappings for exposed ports

Author: akerouanton

daemon/network.go

@@ -1036,7 +1036,20 @@ func buildPortsRelatedCreateEndpointOptions(c *container.Container, n *libnetwor
 		exposedPorts   []lntypes.TransportPort
 		publishedPorts []lntypes.PortBinding
 	)
-	for p, bindings := range c.HostConfig.PortBindings {
+
+	ports := c.HostConfig.PortBindings
+	if c.HostConfig.PublishAllPorts {
+		// Add exposed ports to a copy of the map to make sure a "publishedPorts" entry is created
+		// for each exposed port, even if there's no specific binding.
+		ports = maps.Clone(c.HostConfig.PortBindings)
+		for p := range c.Config.ExposedPorts {
+			if _, exists := ports[p]; !exists {
+				ports[p] = nil
+			}
+		}
+	}
+
+	for p, bindings := range ports {
 		protocol := lntypes.ParseProtocol(string(p.Proto()))
 		exposedPorts = append(exposedPorts, lntypes.TransportPort{
 			Proto: protocol,