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Merge pull request #44387 from jamiehannaford/fix-port-allocation

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Automatic merge from submit-queue

Use provided VipPortID for OpenStack LB

**What this PR does / why we need it**:

When creating an OpenStack LoadBalancer, Kubernetes will search through the tenant trying to match the LB's VIP with a port. This is problematic because multiple ports may have the same fixed IP, therefore leading to routing inconsistencies. We should use the port ID provided by the LB's response body instead.

**Which issue this PR fixes**:

https://github.com/kubernetes/kubernetes/issues/43909

**Special notes for your reviewer**:

Since this involves non-deterministic testing, it'd be best if we can run this in a staging environment for a few days before merging (say until early next week).

**Release note**:
```release-note
Fixes issue during LB creation where ports where incorrectly assigned to a floating IP
```
This commit is contained in:
Kubernetes Submit Queue 2017-04-23 20:50:49 -07:00 committed by GitHub
commit ce2f0b1937
1 changed files with 10 additions and 27 deletions
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37
pkg/cloudprovider/providers/openstack/openstack_loadbalancer.go
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@ -828,19 +828,16 @@ func (lbaas *LbaasV2) EnsureLoadBalancer(clusterName string, apiService *v1.Serv
status.Ingress = []v1.LoadBalancerIngress{{IP: loadbalancer.VipAddress}}
port, err := getPortByIP(lbaas.network, loadbalancer.VipAddress)
if err != nil {
return nil, fmt.Errorf("Error getting port for LB vip %s: %v", loadbalancer.VipAddress, err)
}
floatIP, err := getFloatingIPByPortID(lbaas.network, port.ID)
portID := loadbalancer.VipPortID
floatIP, err := getFloatingIPByPortID(lbaas.network, portID)
if err != nil && err != ErrNotFound {
return nil, fmt.Errorf("Error getting floating ip for port %s: %v", port.ID, err)
return nil, fmt.Errorf("Error getting floating ip for port %s: %v", portID, err)
}
if floatIP == nil && lbaas.opts.FloatingNetworkId != "" {
glog.V(4).Infof("Creating floating ip for loadbalancer %s port %s", loadbalancer.ID, port.ID)
glog.V(4).Infof("Creating floating ip for loadbalancer %s port %s", loadbalancer.ID, portID)
floatIPOpts := floatingips.CreateOpts{
FloatingNetworkID: lbaas.opts.FloatingNetworkId,
PortID: port.ID,
PortID: portID,
}
floatIP, err = floatingips.Create(lbaas.network, floatIPOpts).Extract()
if err != nil {
@ -945,25 +942,15 @@ func (lbaas *LbaasV2) EnsureLoadBalancer(clusterName string, apiService *v1.Serv
return nil, err
}
// Get the port ID
port, err := getPortByIP(lbaas.network, loadbalancer.VipAddress)
if err != nil {
// cleanup what was created so far
_ = lbaas.EnsureLoadBalancerDeleted(clusterName, apiService)
return nil, err
}
portID := loadbalancer.VipPortID
update_opts := neutronports.UpdateOpts{SecurityGroups: []string{lbSecGroup.ID}}
res := neutronports.Update(lbaas.network, port.ID, update_opts)
res := neutronports.Update(lbaas.network, portID, update_opts)
if res.Err != nil {
glog.Errorf("Error occured updating port: %s", port.ID)
glog.Errorf("Error occured updating port: %s", portID)
// cleanup what was created so far
_ = lbaas.EnsureLoadBalancerDeleted(clusterName, apiService)
return nil, res.Err
}
}
return status, nil
@ -1129,12 +1116,8 @@ func (lbaas *LbaasV2) EnsureLoadBalancerDeleted(clusterName string, service *v1.
}
if lbaas.opts.FloatingNetworkId != "" && loadbalancer != nil {
port, err := getPortByIP(lbaas.network, loadbalancer.VipAddress)
if err != nil {
return err
}
floatingIP, err := getFloatingIPByPortID(lbaas.network, port.ID)
portID := loadbalancer.VipPortID
floatingIP, err := getFloatingIPByPortID(lbaas.network, portID)
if err != nil && err != ErrNotFound {
return err
}