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Support waiting for kube-apiserver to be ready with timout during NPD startup

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This commit is contained in:
Yang Guo
2019-07-08 14:50:49 -07:00
parent 30babe906e
commit ddb1d76178
4 changed files with 46 additions and 4 deletions
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9
cmd/options/options.go
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@@ -20,6 +20,7 @@ import (
"flag"
"fmt"
"os"
"time"
"net/url"
@@ -49,6 +50,12 @@ type NodeProblemDetectorOptions struct {
EnableK8sExporter bool
// ApiServerOverride is the custom URI used to connect to Kubernetes ApiServer.
ApiServerOverride string
// APIServerWaitTimeout is the timeout on waiting for kube-apiserver to be
// ready.
APIServerWaitTimeout time.Duration
// APIServerWaitInterval is the interval between the checks on the
// readiness of kube-apiserver.
APIServerWaitInterval time.Duration
// prometheusExporter options
// PrometheusServerPort is the port to bind the Prometheus scrape endpoint. Use 0 to disable.
@@ -96,6 +103,8 @@ func (npdo *NodeProblemDetectorOptions) AddFlags(fs *pflag.FlagSet) {
fs.BoolVar(&npdo.EnableK8sExporter, "enable-k8s-exporter", true, "Enables reporting to Kubernetes API server.")
fs.StringVar(&npdo.ApiServerOverride, "apiserver-override",
"", "Custom URI used to connect to Kubernetes ApiServer. This is ignored if --enable-k8s-exporter is false.")
fs.DurationVar(&npdo.APIServerWaitTimeout, "apiserver-wait-timeout", time.Duration(5)*time.Minute, "The timeout on waiting for kube-apiserver to be ready. This is ignored if --enable-k8s-exporter is false.")
fs.DurationVar(&npdo.APIServerWaitInterval, "apiserver-wait-interval", time.Duration(5)*time.Second, "The interval between the checks on the readiness of kube-apiserver. This is ignored if --enable-k8s-exporter is false.")
fs.BoolVar(&npdo.PrintVersion, "version", false, "Print version information and quit")
fs.StringVar(&npdo.HostnameOverride, "hostname-override",
"", "Custom node name used to override hostname")