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Add node sync period flag

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This commit is contained in:
Deyuan Deng 2015-01-20 20:31:21 -05:00
parent 6db42eda4e
commit c263a79d3e
3 changed files with 11 additions and 4 deletions
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7
cmd/kube-controller-manager/controller-manager.go
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@ -49,7 +49,10 @@ var (
cloudProvider = flag.String("cloud_provider", "", "The provider for cloud services. Empty string for no provider.") cloudProvider = flag.String("cloud_provider", "", "The provider for cloud services. Empty string for no provider.")
cloudConfigFile = flag.String("cloud_config", "", "The path to the cloud provider configuration file. Empty string for no configuration file.") cloudConfigFile = flag.String("cloud_config", "", "The path to the cloud provider configuration file. Empty string for no configuration file.")
minionRegexp = flag.String("minion_regexp", "", "If non empty, and -cloud_provider is specified, a regular expression for matching minion VMs.") minionRegexp = flag.String("minion_regexp", "", "If non empty, and -cloud_provider is specified, a regular expression for matching minion VMs.")
machineList util.StringList nodeSyncPeriod = flag.Duration("node_sync_period", 10*time.Second, ""+
"The period for syncing nodes from cloudprovider. Longer periods will result in "+
"fewer calls to cloud provider, but may delay addition of new nodes to cluster.")
machineList util.StringList
// TODO: Discover these by pinging the host machines, and rip out these flags. // TODO: Discover these by pinging the host machines, and rip out these flags.
// TODO: in the meantime, use resource.QuantityFlag() instead of these // TODO: in the meantime, use resource.QuantityFlag() instead of these
nodeMilliCPU = flag.Int64("node_milli_cpu", 1000, "The amount of MilliCPU provisioned on each node") nodeMilliCPU = flag.Int64("node_milli_cpu", 1000, "The amount of MilliCPU provisioned on each node")
@ -107,7 +110,7 @@ func main() {
}, },
} }
nodeController := nodeControllerPkg.NewNodeController(cloud, *minionRegexp, machineList, nodeResources, kubeClient) nodeController := nodeControllerPkg.NewNodeController(cloud, *minionRegexp, machineList, nodeResources, kubeClient)
nodeController.Run(10 * time.Second) nodeController.Run(*nodeSyncPeriod)
select {} select {}
} }

5
docs/man/kube-controller-manager.1.md
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@ -54,11 +54,14 @@ The kube-controller-manager has several options.
log to standard error instead of files. log to standard error instead of files.
**--machines**=[] **--machines**=[]
List of machines to schedule onto, comma separated. List of machines to schedule onto, comma separated.
**--master**="" **--master**=""
The address of the Kubernetes API server. The address of the Kubernetes API server.
**--node_sync_peroid**=10s
The period for syncing nodes from cloudprovider.
**--port**=10252 **--port**=10252
The port that the controller-manager's http service runs on. The port that the controller-manager's http service runs on.

3
docs/node.md
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@ -58,7 +58,8 @@ objects. It performs two major functions: cluster-wide node synchronization
and single node life-cycle management. and single node life-cycle management.
Node controller has a sync loop that creates/deletes `Node`s from Kubernetes Node controller has a sync loop that creates/deletes `Node`s from Kubernetes
based on all matching VM instances listed from cloud provider. If a new instance based on all matching VM instances listed from cloud provider. The sync period
can be controlled via flag "--node_sync_period". If a new instance
gets created, Node Controller creates a representation for it. If an existing gets created, Node Controller creates a representation for it. If an existing
instance gets deleted, Node Controller deletes the representation. Note however, instance gets deleted, Node Controller deletes the representation. Note however,
Node Controller is unable to provision the node for you, i.e. it won't install Node Controller is unable to provision the node for you, i.e. it won't install