From d1899ff25030c348d96fbe5a3a721be7e99ad3fc Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Roman=20Van=C3=AD=C4=8Dek?= <ivasoft@exprojekt.cz>
Date: Thu, 26 Jan 2023 09:40:23 +0100
Subject: [PATCH 1/3] Use DDNS for swarm load balancing

---
 pkg/provider/docker/docker.go | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/pkg/provider/docker/docker.go b/pkg/provider/docker/docker.go
index 2e902cf8a..d0cacdf39 100644
--- a/pkg/provider/docker/docker.go
+++ b/pkg/provider/docker/docker.go
@@ -509,7 +509,20 @@ func (p *Provider) parseService(ctx context.Context, service swarmtypes.Service,
 	if service.Spec.EndpointSpec != nil {
 		if service.Spec.EndpointSpec.Mode == swarmtypes.ResolutionModeDNSRR {
 			if dData.ExtraConf.Docker.LBSwarm {
-				logger.Warn().Msgf("Ignored %s endpoint-mode not supported, service name: %s. Fallback to Traefik load balancing", swarmtypes.ResolutionModeDNSRR, service.Spec.Annotations.Name)
+				dData.NetworkSettings.Networks = make(map[string]*networkData)
+				for _, virtualIP := range service.Endpoint.VirtualIPs {
+					networkService := networkMap[virtualIP.NetworkID]
+					if networkService != nil {
+						network := &networkData{
+							Name: networkService.Name,
+							ID:   virtualIP.NetworkID,
+							Addr: "tasks." + service.Spec.Name,
+						}
+						dData.NetworkSettings.Networks[network.Name] = network
+					} else {
+						logger.Debug().Msgf("Network not found, id: %s", virtualIP.NetworkID)
+					}
+				}
 			}
 		} else if service.Spec.EndpointSpec.Mode == swarmtypes.ResolutionModeVIP {
 			dData.NetworkSettings.Networks = make(map[string]*networkData)

From a2089c3a5d6ddc4d5ad16a9a6e632e48b1039303 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Roman=20Van=C3=AD=C4=8Dek?= <ivasoft@exprojekt.cz>
Date: Thu, 2 Feb 2023 21:26:49 +0100
Subject: [PATCH 2/3] CI build trigger.

---
 pkg/provider/docker/docker.go | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pkg/provider/docker/docker.go b/pkg/provider/docker/docker.go
index d0cacdf39..01f0561fa 100644
--- a/pkg/provider/docker/docker.go
+++ b/pkg/provider/docker/docker.go
@@ -523,6 +523,8 @@ func (p *Provider) parseService(ctx context.Context, service swarmtypes.Service,
 						logger.Debug().Msgf("Network not found, id: %s", virtualIP.NetworkID)
 					}
 				}
+			} else {
+				// Each service task IP will get extracted later on in parseTasks
 			}
 		} else if service.Spec.EndpointSpec.Mode == swarmtypes.ResolutionModeVIP {
 			dData.NetworkSettings.Networks = make(map[string]*networkData)

From 1c0b30963bdc273fb42dcaff578287cd8b746c16 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Roman=20Van=C3=AD=C4=8Dek?= <ivasoft@exprojekt.cz>
Date: Fri, 3 Feb 2023 00:11:24 +0100
Subject: [PATCH 3/3] In DNSRR there is no Endpoint.VirtualIPs - use
 Spec.TaskTemplate.Networks

---
 pkg/provider/docker/docker.go | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/pkg/provider/docker/docker.go b/pkg/provider/docker/docker.go
index 01f0561fa..63040e31d 100644
--- a/pkg/provider/docker/docker.go
+++ b/pkg/provider/docker/docker.go
@@ -510,17 +510,17 @@ func (p *Provider) parseService(ctx context.Context, service swarmtypes.Service,
 		if service.Spec.EndpointSpec.Mode == swarmtypes.ResolutionModeDNSRR {
 			if dData.ExtraConf.Docker.LBSwarm {
 				dData.NetworkSettings.Networks = make(map[string]*networkData)
-				for _, virtualIP := range service.Endpoint.VirtualIPs {
-					networkService := networkMap[virtualIP.NetworkID]
+				for _, net := range service.Spec.TaskTemplate.Networks {
+					networkService := networkMap[net.Target]
 					if networkService != nil {
 						network := &networkData{
 							Name: networkService.Name,
-							ID:   virtualIP.NetworkID,
+							ID:   net.Target,
 							Addr: "tasks." + service.Spec.Name,
 						}
 						dData.NetworkSettings.Networks[network.Name] = network
 					} else {
-						logger.Debug().Msgf("Network not found, id: %s", virtualIP.NetworkID)
+						logger.Debug().Msgf("Network not found, id: %s", net.Target)
 					}
 				}
 			} else {