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code-review- add logs and comments (#11)

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add logs and comments & fix getMasterNode
This commit is contained in:
NIkhil Bhatia 2017-11-15 12:52:59 -08:00 committed by Jingtao Ren
parent 585dabc279
commit 408f739618
1 changed files with 13 additions and 6 deletions
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19
pkg/cloudprovider/providers/azure/azure_util.go
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@ -135,12 +135,16 @@ func (az *Cloud) getpublicIPAddressID(pipName string) string {
}
// select load balancer for the service in the cluster
// the selection algorithm selectes the the load balancer with currently has
// the minimum lb rules, there there are multiple LB's with same number of rules
// it selects the first one (sorted based on name)
func (az *Cloud) selectLoadBalancer(clusterName string, service *v1.Service, existingLBs *[]network.LoadBalancer, nodes []*v1.Node) (selectedLB *network.LoadBalancer, existsLb bool, err error) {
isInternal := requiresInternalLoadBalancer(service)
serviceName := getServiceName(service)
glog.V(3).Infof("selectLoadBalancer(%s): isInternal(%s) - start", serviceName, isInternal)
availabilitySetNames, err := az.getLoadBalancerAvailabilitySetNames(service, nodes)
if err != nil {
glog.Errorf("az.selectLoadBalancer: cluster (%s) service(%s) - az.getLoadBalancerAvailabilitySetNames failed, err=(%v)", clusterName, serviceName, err)
return nil, false, err
}
glog.Infof("selectLoadBalancer(%s): isInternal(%s) - availabilitysetsname %v", serviceName, isInternal, *availabilitySetNames)
@ -198,15 +202,17 @@ func (az *Cloud) selectLoadBalancer(clusterName string, service *v1.Service, exi
func (az *Cloud) getLoadBalancerAvailabilitySetNames(service *v1.Service, nodes []*v1.Node) (availabilitySetNames *[]string, err error) {
hasMode, isAuto, serviceASL := getServiceLoadBalancerMode(service)
if !hasMode {
// legacy load balancer auto mode load balancer.
// no mode specified in service annotation default to PrimaryAvailabilitySetName
availabilitySetNames = &[]string{az.Config.PrimaryAvailabilitySetName}
return availabilitySetNames, nil
}
availabilitySetNames, err = az.getAgentPoolAvailabiliySets(nodes)
if err != nil {
glog.Errorf("az.getLoadBalancerAvailabilitySetNames - getAgentPoolAvailabiliySets failed err=(%v)", err)
return nil, err
}
if len(*availabilitySetNames) == 0 {
glog.Errorf("az.getLoadBalancerAvailabilitySetNames - No availability sets found for nodes in the cluster, node count(%d)", len(nodes))
return nil, fmt.Errorf("No availability sets found for nodes, node count(%d)", len(nodes))
}
// sort the list to have deterministic selection
@ -226,6 +232,7 @@ func (az *Cloud) getLoadBalancerAvailabilitySetNames(service *v1.Service, nodes
}
}
if !found {
glog.Errorf("az.getLoadBalancerAvailabilitySetNames - Availability set (%s) in service annotation not found", serviceASL[sasx])
return nil, fmt.Errorf("availability set (%s) - not found", serviceASL[sasx])
}
}
@ -240,6 +247,7 @@ func (az *Cloud) getLoadBalancerAvailabilitySetNames(service *v1.Service, nodes
func (az *Cloud) getAgentPoolAvailabiliySets(nodes []*v1.Node) (agentPoolAs *[]string, err error) {
vms, err := az.VirtualMachineClientListWithRetry()
if err != nil {
glog.Errorf("az.getNodeAvailabilitySet - VirtualMachineClientListWithRetry failed, err=%v", err)
return nil, err
}
vmNameToAvailabilitySetID := make(map[string]string, len(vms))
@ -258,6 +266,7 @@ func (az *Cloud) getAgentPoolAvailabiliySets(nodes []*v1.Node) (agentPoolAs *[]s
}
asID, ok := vmNameToAvailabilitySetID[nodeName]
if !ok {
glog.Errorf("az.getNodeAvailabilitySet - Node(%s) has no availability sets", nodeName)
return nil, fmt.Errorf("Node (%s) - has no availability sets", nodeName)
}
if availabilitySetIDs.Has(asID) {
@ -266,7 +275,7 @@ func (az *Cloud) getAgentPoolAvailabiliySets(nodes []*v1.Node) (agentPoolAs *[]s
}
asName, err := getLastSegment(asID)
if err != nil {
glog.Errorf("az.getNodeAvailabilitySet(%s), getLastSegment(%s), err=%v", nodeName, asID, err)
glog.Errorf("az.getNodeAvailabilitySet - Node (%s)- getLastSegment(%s), err=%v", nodeName, asID, err)
return nil, err
}
// AvailabilitySet ID is currently upper cased in a indeterministic way
@ -307,10 +316,8 @@ func (az *Cloud) getLoadBalancerName(clusterName string, availabilitySetName str
// The master role is determined by looking for:
// * a kubernetes.io/role="master" label
func isMasterNode(node *v1.Node) bool {
for k, v := range node.Labels {
if k == nodeLabelRole && v == "master" {
return true
}
if val, ok := node.Labels[nodeLabelRole]; ok && val == "master" {
return true
}
return false