Support returning all IP addresses of a container

docker.go

@@ -393,6 +393,23 @@ func (c *DockerContainer) ContainerIP(ctx context.Context) (string, error) {
 	return ip, nil
 }
 
+// ContainerIPList gets the IP addresses of all the networks within the container.
+func (c *DockerContainer) ContainerIPList(ctx context.Context) ([]string, error) {
+	ipList := make([]string, 0)
+
+	inspect, err := c.inspectContainer(ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	networks := inspect.NetworkSettings.Networks
+	for _, endpoints := range networks {
+		ipList = append(ipList, endpoints.IPAddress)
+	}
+
+	return ipList, nil
+}
+
 // NetworkAliases gets the aliases of the container for the networks it is attached to.
 func (c *DockerContainer) NetworkAliases(ctx context.Context) (map[string][]string, error) {
 	inspect, err := c.inspectContainer(ctx)