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Added wait and interval time flags to minikube service command #1651

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merged 1 commit into from
Jun 27, 2017
Merged

Added wait and interval time flags to minikube service command #1651

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9 changes: 7 additions & 2 deletions cmd/minikube/cmd/config/open.go
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Original file line number Diff line number Diff line change
Expand Up @@ -24,6 +24,7 @@ import (
"github.com/spf13/cobra"
"k8s.io/minikube/pkg/minikube/assets"
"k8s.io/minikube/pkg/minikube/cluster"
"k8s.io/minikube/pkg/minikube/constants"
"k8s.io/minikube/pkg/minikube/machine"
"k8s.io/minikube/pkg/minikube/service"
)
Expand All @@ -34,6 +35,8 @@ var (
addonsURLMode bool
addonsURLFormat string
addonsURLTemplate *template.Template
wait int
interval int
)

const defaultAddonsFormatTemplate = "http://{{.IP}}:{{.Port}}"
Expand Down Expand Up @@ -101,7 +104,8 @@ You can add one by annotating a service with the label %s:%s
}
for i := range serviceList.Items {
svc := serviceList.Items[i].ObjectMeta.Name
service.WaitAndMaybeOpenService(api, namespace, svc, addonsURLTemplate, addonsURLMode, https)
service.WaitAndMaybeOpenService(api, namespace, svc, addonsURLTemplate,
addonsURLMode, https, wait, interval)

}
},
Expand All @@ -110,7 +114,8 @@ You can add one by annotating a service with the label %s:%s
func init() {
addonsOpenCmd.Flags().BoolVar(&addonsURLMode, "url", false, "Display the kubernetes addons URL in the CLI instead of opening it in the default browser")
addonsOpenCmd.Flags().BoolVar(&https, "https", false, "Open the addons URL with https instead of http")

addonsOpenCmd.Flags().IntVar(&wait, "wait", constants.DefaultWait, "Amount of time to wait for service in seconds")
addonsOpenCmd.Flags().IntVar(&interval, "interval", constants.DefaultInterval, "The time interval for each check that wait performs in seconds")
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I like the wait flag, but interval seems a bit overkill. Any reason to not just try every 1-2 seconds, no matter what wait is?

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@aaron-prindle aaron-prindle Jun 26, 2017 •
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The issue here is that, for users, I tested the timing (w/ 6 second interval) so that there were only ~3-6 outputs "waiting" if a user waited for a sensible service to come up (single pod service). For something automated, there is no real reason to have the wait be so high. I am fine with removing it though.

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With this, simply using the wait flag will have a 6 second default, "minikube service --wait 300 nginx"

addonsOpenCmd.PersistentFlags().StringVar(&addonsURLFormat, "format", defaultAddonsFormatTemplate, "Format to output addons URL in. This format will be applied to each url individually and they will be printed one at a time.")
AddonsCmd.AddCommand(addonsOpenCmd)
}
8 changes: 7 additions & 1 deletion cmd/minikube/cmd/service.go
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Expand Up @@ -23,6 +23,7 @@ import (

"github.com/spf13/cobra"
"k8s.io/minikube/pkg/minikube/cluster"
"k8s.io/minikube/pkg/minikube/constants"
"k8s.io/minikube/pkg/minikube/machine"
"k8s.io/minikube/pkg/minikube/service"
)
Expand All @@ -35,6 +36,8 @@ var (
serviceURLMode bool
serviceURLFormat string
serviceURLTemplate *template.Template
wait int
interval int
)

// serviceCmd represents the service command
Expand Down Expand Up @@ -68,7 +71,8 @@ var serviceCmd = &cobra.Command{
defer api.Close()

cluster.EnsureMinikubeRunningOrExit(api, 1)
err = service.WaitAndMaybeOpenService(api, namespace, svc, serviceURLTemplate, serviceURLMode, https)
err = service.WaitAndMaybeOpenService(api, namespace, svc,
serviceURLTemplate, serviceURLMode, https, wait, interval)
if err != nil {
fmt.Fprintf(os.Stderr, "Error opening service: %s\n", err)
os.Exit(1)
Expand All @@ -80,6 +84,8 @@ func init() {
serviceCmd.Flags().StringVarP(&namespace, "namespace", "n", "default", "The service namespace")
serviceCmd.Flags().BoolVar(&serviceURLMode, "url", false, "Display the kubernetes service URL in the CLI instead of opening it in the default browser")
serviceCmd.Flags().BoolVar(&https, "https", false, "Open the service URL with https instead of http")
serviceCmd.Flags().IntVar(&wait, "wait", constants.DefaultWait, "Amount of time to wait for a service in seconds")
serviceCmd.Flags().IntVar(&interval, "interval", constants.DefaultWait, "The time interval for each check that wait performs in seconds")

serviceCmd.PersistentFlags().StringVar(&serviceURLFormat, "format", defaultServiceFormatTemplate, "Format to output service URL in. This format will be applied to each url individually and they will be printed one at a time.")

Expand Down
2 changes: 2 additions & 0 deletions pkg/minikube/constants/constants.go
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Expand Up @@ -96,6 +96,8 @@ const (
DefaultConfigViewFormat = "- {{.ConfigKey}}: {{.ConfigValue}}\n"
GithubMinikubeReleasesURL = "https://storage.googleapis.com/minikube/releases.json"
KubernetesVersionGCSURL = "https://storage.googleapis.com/minikube/k8s_releases.json"
DefaultWait = 20
DefaultInterval = 6
)

var DefaultIsoUrl = fmt.Sprintf("https://storage.googleapis.com/%s/minikube-%s.iso", minikubeVersion.GetIsoPath(), minikubeVersion.GetIsoVersion())
Expand Down
5 changes: 3 additions & 2 deletions pkg/minikube/service/service.go
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Expand Up @@ -217,8 +217,9 @@ func checkEndpointReady(endpoints corev1.EndpointsInterface, service string) err
return nil
}

func WaitAndMaybeOpenService(api libmachine.API, namespace string, service string, urlTemplate *template.Template, urlMode bool, https bool) error {
if err := util.RetryAfter(20, func() error { return CheckService(namespace, service) }, 6*time.Second); err != nil {
func WaitAndMaybeOpenService(api libmachine.API, namespace string, service string, urlTemplate *template.Template, urlMode bool, https bool,
wait int, interval int) error {
if err := util.RetryAfter(wait, func() error { return CheckService(namespace, service) }, time.Duration(interval)*time.Second); err != nil {
return errors.Wrapf(err, "Could not find finalized endpoint being pointed to by %s", service)
}

Expand Down