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Fix AWS NLB security group updates

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This corrects a problem where valid security group ports were removed
unintentionally when updating a service or when node changes occur.

Fixes #60825, #64148
This commit is contained in:
Kelly Campbell 2018-09-07 16:24:50 -04:00
parent a3ccea9d87
commit f052146a96
1 changed files with 11 additions and 5 deletions
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16
pkg/cloudprovider/providers/aws/aws_loadbalancer.go
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@ -569,12 +569,17 @@ func filterForIPRangeDescription(securityGroups []*ec2.SecurityGroup, lbName str
response := []*ec2.SecurityGroup{}
clientRule := fmt.Sprintf("%s=%s", NLBClientRuleDescription, lbName)
healthRule := fmt.Sprintf("%s=%s", NLBHealthCheckRuleDescription, lbName)
alreadyAdded := sets.NewString()
for i := range securityGroups {
for j := range securityGroups[i].IpPermissions {
for k := range securityGroups[i].IpPermissions[j].IpRanges {
description := aws.StringValue(securityGroups[i].IpPermissions[j].IpRanges[k].Description)
if description == clientRule || description == healthRule {
response = append(response, securityGroups[i])
sgIDString := aws.StringValue(securityGroups[i].GroupId)
if !alreadyAdded.Has(sgIDString) {
response = append(response, securityGroups[i])
alreadyAdded.Insert(sgIDString)
}
}
}
}
@ -599,6 +604,7 @@ func (c *Cloud) getVpcCidrBlock() (*string, error) {
// if clientTraffic is false, then only update HealthCheck rules
func (c *Cloud) updateInstanceSecurityGroupsForNLBTraffic(actualGroups []*ec2.SecurityGroup, desiredSgIds []string, ports []int64, lbName string, clientCidrs []string, clientTraffic bool) error {
klog.V(8).Infof("updateInstanceSecurityGroupsForNLBTraffic: actualGroups=%v, desiredSgIds=%v, ports=%v, clientTraffic=%v", actualGroups, desiredSgIds, ports, clientTraffic)
// Map containing the groups we want to make changes on; the ports to make
// changes on; and whether to add or remove it. true to add, false to remove
portChanges := map[string]map[int64]bool{}
@ -653,16 +659,16 @@ func (c *Cloud) updateInstanceSecurityGroupsForNLBTraffic(actualGroups []*ec2.Se
if add {
if clientTraffic {
klog.V(2).Infof("Adding rule for client MTU discovery from the network load balancer (%s) to instances (%s)", clientCidrs, instanceSecurityGroupID)
klog.V(2).Infof("Adding rule for client traffic from the network load balancer (%s) to instances (%s)", clientCidrs, instanceSecurityGroupID)
klog.V(2).Infof("Adding rule for client traffic from the network load balancer (%s) to instances (%s), port (%v)", clientCidrs, instanceSecurityGroupID, port)
} else {
klog.V(2).Infof("Adding rule for health check traffic from the network load balancer (%s) to instances (%s)", clientCidrs, instanceSecurityGroupID)
klog.V(2).Infof("Adding rule for health check traffic from the network load balancer (%s) to instances (%s), port (%v)", clientCidrs, instanceSecurityGroupID, port)
}
} else {
if clientTraffic {
klog.V(2).Infof("Removing rule for client MTU discovery from the network load balancer (%s) to instances (%s)", clientCidrs, instanceSecurityGroupID)
klog.V(2).Infof("Removing rule for client traffic from the network load balancer (%s) to instance (%s)", clientCidrs, instanceSecurityGroupID)
klog.V(2).Infof("Removing rule for client traffic from the network load balancer (%s) to instance (%s), port (%v)", clientCidrs, instanceSecurityGroupID, port)
}
klog.V(2).Infof("Removing rule for health check traffic from the network load balancer (%s) to instance (%s)", clientCidrs, instanceSecurityGroupID)
klog.V(2).Infof("Removing rule for health check traffic from the network load balancer (%s) to instance (%s), port (%v)", clientCidrs, instanceSecurityGroupID, port)
}
if clientTraffic {