forked from argoproj/argo-workflows
/
wait.go
152 lines (140 loc) · 3.66 KB
/
wait.go
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package commands
import (
"context"
"fmt"
"os"
"sync"
"github.com/argoproj/pkg/errors"
"github.com/spf13/cobra"
apierr "k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/fields"
"github.com/argoproj/argo/cmd/argo/commands/client"
workflowpkg "github.com/argoproj/argo/pkg/apiclient/workflow"
wfv1 "github.com/argoproj/argo/pkg/apis/workflow/v1alpha1"
)
func NewWaitCommand() *cobra.Command {
var (
ignoreNotFound bool
)
var command = &cobra.Command{
Use: "wait WORKFLOW1 WORKFLOW2..,",
Short: "waits for a workflow to complete",
Run: func(cmd *cobra.Command, args []string) {
if len(args) == 0 {
cmd.HelpFunc()(cmd, args)
os.Exit(1)
}
WaitWorkflows(args, ignoreNotFound, false)
},
}
command.Flags().BoolVar(&ignoreNotFound, "ignore-not-found", false, "Ignore the wait if the workflow is not found")
return command
}
// WaitWorkflows waits for the given workflowNames.
func WaitWorkflows(workflowNames []string, ignoreNotFound, quiet bool) {
var wg sync.WaitGroup
wfSuccessStatus := true
var apiClient workflowpkg.WorkflowServiceClient
var ctx context.Context
ns, _, _ := client.Config.Namespace()
if client.ArgoServer != "" {
conn := client.GetClientConn()
defer conn.Close()
apiClient, ctx = GetWFApiServerGRPCClient(conn)
} else {
InitWorkflowClient()
}
for _, workflowName := range workflowNames {
wg.Add(1)
if client.ArgoServer != "" {
go func(name string) {
if !apiServerWaitOnOne(apiClient, ctx, name, ns, ignoreNotFound, quiet) {
wfSuccessStatus = false
}
wg.Done()
}(workflowName)
} else {
go func(name string) {
if !waitOnOne(name, ignoreNotFound, quiet) {
wfSuccessStatus = false
}
wg.Done()
}(workflowName)
}
}
wg.Wait()
if !wfSuccessStatus {
os.Exit(1)
}
}
func apiServerWaitOnOne(client workflowpkg.WorkflowServiceClient, ctx context.Context, wfName string, namespace string, ignoreNotFound, quiet bool) bool {
fieldSelector := fields.ParseSelectorOrDie(fmt.Sprintf("metadata.name=%s", wfName))
wfReq := workflowpkg.WatchWorkflowsRequest{
Namespace: namespace,
ListOptions: &metav1.ListOptions{
FieldSelector: fieldSelector.String(),
},
}
stream, err := client.WatchWorkflows(ctx, &wfReq)
if err != nil {
errors.CheckError(err)
return false
}
for {
event, err := stream.Recv()
if err != nil {
errors.CheckError(err)
break
}
wf := event.Object
if wf == nil {
continue
}
if !wf.Status.FinishedAt.IsZero() {
if !quiet {
fmt.Printf("%s %s at %v\n", wfName, wf.Status.Phase, wf.Status.FinishedAt)
}
if wf.Status.Phase == wfv1.NodeFailed || wf.Status.Phase == wfv1.NodeError {
return false
}
return true
}
}
return true
}
func waitOnOne(workflowName string, ignoreNotFound, quiet bool) bool {
fieldSelector := fields.ParseSelectorOrDie(fmt.Sprintf("metadata.name=%s", workflowName))
opts := metav1.ListOptions{
FieldSelector: fieldSelector.String(),
}
_, err := wfClient.Get(workflowName, metav1.GetOptions{})
if err != nil {
if apierr.IsNotFound(err) && ignoreNotFound {
return true
}
errors.CheckError(err)
}
watchIf, err := wfClient.Watch(opts)
errors.CheckError(err)
defer watchIf.Stop()
for {
next := <-watchIf.ResultChan()
wf, _ := next.Object.(*wfv1.Workflow)
if wf == nil {
watchIf.Stop()
watchIf, err = wfClient.Watch(opts)
errors.CheckError(err)
continue
}
if !wf.Status.FinishedAt.IsZero() {
if !quiet {
fmt.Printf("%s %s at %v\n", workflowName, wf.Status.Phase, wf.Status.FinishedAt)
}
if wf.Status.Phase == wfv1.NodeFailed || wf.Status.Phase == wfv1.NodeError {
return false
}
return true
}
}
}