From 50bcf47873959458229be209231a6d90587e8900 Mon Sep 17 00:00:00 2001
From: Vincent Demeester <vincent@sbr.pm>
Date: Fri, 11 Nov 2016 14:19:41 +0100
Subject: [PATCH] Add support for extra_hosts in composefile v3

Signed-off-by: Vincent Demeester <vincent@sbr.pm>
Upstream-commit: f32869d956eb175f88fd0b16992d2377d8eae79c
Component: engine
---
 components/engine/cli/command/stack/deploy.go | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/components/engine/cli/command/stack/deploy.go b/components/engine/cli/command/stack/deploy.go
index 94ef6bac2c..9996f128b3 100644
--- a/components/engine/cli/command/stack/deploy.go
+++ b/components/engine/cli/command/stack/deploy.go
@@ -498,6 +498,7 @@ func convertService(
 				Command:         service.Entrypoint,
 				Args:            service.Command,
 				Hostname:        service.Hostname,
+				Hosts:           convertExtraHosts(service.ExtraHosts),
 				Env:             convertEnvironment(service.Environment),
 				Labels:          getStackLabels(namespace.name, service.Labels),
 				Dir:             service.WorkingDir,
@@ -521,6 +522,14 @@ func convertService(
 	return serviceSpec, nil
 }
 
+func convertExtraHosts(extraHosts map[string]string) []string {
+	hosts := []string{}
+	for host, ip := range extraHosts {
+		hosts = append(hosts, fmt.Sprintf("%s %s", host, ip))
+	}
+	return hosts
+}
+
 func convertRestartPolicy(restart string, source *composetypes.RestartPolicy) (*swarm.RestartPolicy, error) {
 	// TODO: log if restart is being ignored
 	if source == nil {