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glusterfs: improve a comment block 

moving it to the function it explains and
rewording slightly.

Signed-off-by: Michael Adam <obnox@redhat.com>
pull/58/head
Michael Adam 2018-09-06 10:36:15 +02:00
parent d0a10f0ca9
commit 465bb06533
1 changed files with 4 additions and 3 deletions
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7
pkg/volume/glusterfs/glusterfs.go
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@ -823,9 +823,6 @@ func (p *glusterfsVolumeProvisioner) CreateVolume(gid int) (r *v1.GlusterfsVolum
} }
// The 'endpointname' is created in form of 'glusterfs-dynamic-<PVC UID>'. // The 'endpointname' is created in form of 'glusterfs-dynamic-<PVC UID>'.
// createEndpointService() checks for this 'endpoint' existence in PVC's namespace and
// if not found, it create an endpoint and service using the IPs we dynamically picked at time
// of volume creation.
epServiceName := dynamicEpSvcPrefix + string(p.options.PVC.UID) epServiceName := dynamicEpSvcPrefix + string(p.options.PVC.UID)
epNamespace := p.options.PVC.Namespace epNamespace := p.options.PVC.Namespace
endpoint, service, err := p.createEndpointService(epNamespace, epServiceName, dynamicHostIps, p.options.PVC.Name) endpoint, service, err := p.createEndpointService(epNamespace, epServiceName, dynamicHostIps, p.options.PVC.Name)
@ -845,6 +842,10 @@ func (p *glusterfsVolumeProvisioner) CreateVolume(gid int) (r *v1.GlusterfsVolum
}, sz, volID, nil }, sz, volID, nil
} }
// createEndpointService() makes sure an endpoint and service
// exist for the given namespace, PVC name, endpoint name, and
// set of IPs. I.e. the endpoint or service is only created
// if it does not exist yet.
func (p *glusterfsVolumeProvisioner) createEndpointService(namespace string, epServiceName string, hostips []string, pvcname string) (endpoint *v1.Endpoints, service *v1.Service, err error) { func (p *glusterfsVolumeProvisioner) createEndpointService(namespace string, epServiceName string, hostips []string, pvcname string) (endpoint *v1.Endpoints, service *v1.Service, err error) {
addrlist := make([]v1.EndpointAddress, len(hostips)) addrlist := make([]v1.EndpointAddress, len(hostips))