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External-provisioner component startup parameter list

Refer to https://github.com/kubernetes-csi/external-provisioner#command-line-options for more information.

Var (master = flag.String ("master", "", "Master URL to build a client config from. Either this or kubeconfig needs to be set if the provisioner is being run out of cluster.") Kubeconfig = flag.String ("kubeconfig", "", "Absolute path to the kubeconfig file. Either this or master needs to be set if the provisioner is being run out of cluster.") CsiEndpoint = flag.String ("csi-address", "/ run/csi/socket", "The gRPC endpoint for Target CSI Volume.") _ = deprecatedflags.Add ("connection-timeout") volumeNamePrefix = flag.String ("volume-name-prefix", "pvc", "Prefix to apply to the name of a created volume.") VolumeNameUUIDLength = flag.Int ("volume-name-uuid-length"-1, "Truncates generated UUID of a created volume to this length. Defaults behavior is to NOT truncate.") ShowVersion = flag.Bool ("version", false, "Show version.") RetryIntervalStart = flag.Duration ("retry-interval-start", time.Second, "Initial retry interval of failed provisioning or deletion It doubles with each failure, up to retry-interval-max.") RetryIntervalMax = flag.Duration ("retry-interval-max", 5*time.Minute, "Maximum retry interval of failed provisioning or deletion.") WorkerThreads = flag.Uint ("worker-threads", 100,100," Number of provisioner worker threads, in other words nr. Of simultaneous CSI calls. ") FinalizerThreads = flag.Uint ("cloning-protection-threads", 1, "Number of simultaniously running threads, handling cloning finalizer removal") operationTimeout = flag.Duration ("timeout", 10*time.Second, "Timeout for waiting for creation or deletion of a volume") _ = deprecatedflags.Add ("provisioner") enableLeaderElection = flag.Bool ("enable-leader-election", false, "Enables leader election. If leader election is enabled, additional RBAC rules are required. Please refer to the Kubernetes CSI documentation for instructions on setting up these RBAC rules. ") LeaderElectionType = flag.String ("leader-election-type", "endpoints", "the type of leader election, options are 'endpoints' (default) or' leases' (strongly recommended). The 'endpoints' option is deprecated in favor of' leases'.") LeaderElectionNamespace = flag.String ("leader-election-namespace", "", "Namespace where the leader election resource lives. Defaults to the pod namespace if not set.") StrictTopology = flag.Bool ("strict-topology", false, "Passes only selected node topology to CreateVolume Request, unlike default behavior of passing aggregated cluster topologies that match with topology keys of the selected node.") ExtraCreateMetadata = flag.Bool ("extra-create-metadata", false, "If set, add pv/pvc metadata to plugin create requests as parameters.") MetricsAddress = flag.String ("metrics-address", "", "The TCP network address where the prometheus metrics endpoint will listen (example: `: 8080`) .The default is empty string, which means metrics endpoint is disabled.") MetricsPath = flag.String ("metrics-path", "/ metrics", "The HTTP path where prometheus metrics will be exposed. Default is `/ metrics`.") FeatureGates map [string] bool provisionController * controller.ProvisionController version = "unknown") func main () {var config * rest.Config var err error flag.Var (utilflag.NewMapStringBool (& featureGates), "feature-gates", "A set of key=value pairs that describe feature gates for alpha/experimental features. "+" Options are:\ n "+ strings.Join (utilfeature.DefaultFeatureGate.KnownFeatures (),"\ n ") klog.InitFlags (nil) flag.CommandLine.AddGoFlagSet (goflag.CommandLine) flag.Set (" logtostderr "," true ") flag.Parse (). Configuration of startup parameters for external-provisioner container deployment. Args:-- "--csi-address=$ (ADDRESS)"-- "--timeout=150s"-- "--retry-interval-start=500ms"-- "--enable-leader-election=true"-- "--leader-election-type=leases"-- "- feature-gates=Topology=true" env:-name: ADDRESS value: unix:/ / / csi/csi-provisioner.sock imagePullPolicy: "Always" volumeMounts:-name: socket-dir mountPath: / csi volumes:-name: socket-dir emptyDir: {medium: "Memory"}.

The following is part of the parameter resolution. For other parameters, please refer to https://github.com/kubernetes-csi/external-provisioner#command-line-options

Csi-address

The grpc service socket address exposed by the ceph-csi component, with which the external-provisioner component will communicate to make requests to create and delete storage. The default is / run/csi/socket.

Timeout

The timeout for creating storage and deleting storage requests is 10 seconds by default.

Enable-leader-election

Whether to enable leader election. Enable when the configuration value is true. Default is false.

Leader-election-type

There are two types of locks used in leader elections, the default endpoint and the officially recommended lease.

Leader-election-namespace

Leader elects the command space in which the lock objects are stored, by default in the namespace where external-provisioner pod is located.

Extra-create-metadata

When set to true, additional request parameters are added when the storage is created: the name of pvc, namespace, and the name of pv. The default value is false.

Worker-threads

The number of worker to perform CreateVolume/DeleteVolume operations at the same time. The default value is 100.

Retry-interval-start

The initial retry interval after failed to create or delete storage. The default value is 1 second. With each failure, the retry interval doubles until the upper limit of the-- retry-interval-max configuration is reached.

Retry-interval-max

The maximum retry interval after failed to create or delete storage. The default value is 5 minutes.

Volume-name-prefix

The prefix added to the pv name when creating the pv. The default value is pvc.

Feature-gates

Property configuration.

Configuration example:-- feature-gates=Topology=true, related to storage topology. For more information, please see:

Https://kubernetes.io/zh/blog/2018/10/11/kubernetes-%E4%B8%AD%E7%9A%84%E6%8B%93%E6%89%91%E6%84%9F%E7%9F%A5%E6%95%B0%E6%8D%AE%E5%8D%B7%E4%BE%9B%E5%BA%94/

Https://kubernetes-csi.github.io/docs/topology.html

Kube-api-qps and kube-api-burst

Used to limit the current of the client kube-client when kube-client communicates with kube-apiserver.

The implementation of current limit is token bucket algorithm. Kube-api-qps can be regarded as the speed at which tokens are generated per second, while kube-api-burst can be regarded as the size of token buckets. Requests sent by kube-client to kube-apiserver need to get tokens in token buckets before they can be sent.

Where the default value of kube-api-qps is 5 and the default value is 10.

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