/
fetch.go
167 lines (161 loc) · 5.03 KB
/
fetch.go
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package awsecs
import (
"fmt"
"log"
"os"
"sort"
"github.com/pkg/errors"
common_config_pb "github.com/prodvana/prodvana-public/go/prodvana-sdk/proto/prodvana/common_config"
runtimes_pb "github.com/prodvana/prodvana-public/go/prodvana-sdk/proto/prodvana/runtimes"
extensions_pb "github.com/prodvana/prodvana-public/go/prodvana-sdk/proto/prodvana/runtimes/extensions"
"github.com/spf13/cobra"
"golang.org/x/sync/errgroup"
"google.golang.org/protobuf/encoding/protojson"
"google.golang.org/protobuf/types/known/timestamppb"
)
func runFetch() (*extensions_pb.FetchOutput, error) {
serviceOutput, err := describeService(commonFlags.ecsClusterName, commonFlags.ecsServiceName)
if err != nil {
return nil, err
}
region := os.Getenv("AWS_DEFAULT_REGION")
if region == "" {
return nil, errors.Errorf("AWS_DEFAULT_REGION not set")
}
ecsServiceObj := &extensions_pb.ExternalObject{
Name: commonFlags.ecsServiceName,
ObjectType: "ECS",
ExternalLinks: []*common_config_pb.ExternalLink{
{
Type: common_config_pb.ExternalLink_DETAIL,
Name: "ECS Console",
Url: fmt.Sprintf(
"https://%[1]s.console.aws.amazon.com/ecs/v2/clusters/%[2]s/services/%[3]s?region=%[1]s",
region,
commonFlags.ecsClusterName,
commonFlags.ecsServiceName,
),
},
},
}
if serviceMissing(serviceOutput) {
ecsServiceObj.Status = extensions_pb.ExternalObject_PENDING
return &extensions_pb.FetchOutput{
Objects: []*extensions_pb.ExternalObject{
ecsServiceObj,
},
}, nil
}
versionChan := make(chan *extensions_pb.ExternalObjectVersion)
errg := errgroup.Group{}
for _, depl := range serviceOutput.Services[0].Deployments {
depl := depl
errg.Go(func() error {
def, err := describeTaskDefinition(depl.TaskDefinition)
if err != nil {
return err
}
tags := tagsToMap(def.Tags)
version := &extensions_pb.ExternalObjectVersion{
Replicas: int32(depl.PendingCount) + int32(depl.RunningCount),
Active: depl.Status == "PRIMARY",
AvailableReplicas: int32(depl.RunningCount),
TargetReplicas: int32(depl.DesiredCount),
// TODO(naphat) today we use the service version string to detect drift.
// It is currently not possible to change ECS-service-level settings like desired count
// without also creating a new version string, so this works.
}
if version.Replicas == 0 {
// skip, this deployment is no longer active and has no replicas left
return nil
}
if tags[serviceIdTagKey] == commonFlags.pvnServiceId {
// if the service ID doesn't match, we leave the version unset, essentially treating it as unknown
version.Version = tags[serviceVersionTagKey]
}
versionChan <- version
return nil
})
}
var versions []*extensions_pb.ExternalObjectVersion
done := make(chan struct{})
go func() {
defer close(done)
for ver := range versionChan {
versions = append(versions, ver)
}
}()
err = errg.Wait()
close(versionChan)
if err != nil {
return nil, err
}
<-done
ecsServiceObj.Versions = versions
foundCount := 0
var debugMessage string
var debugEvents []*runtimes_pb.DebugEvent
for _, depl := range serviceOutput.Services[0].Deployments {
if depl.Status == "PRIMARY" {
switch depl.RolloutState {
case "COMPLETED":
ecsServiceObj.Status = extensions_pb.ExternalObject_SUCCEEDED
case "FAILED":
ecsServiceObj.Status = extensions_pb.ExternalObject_FAILED
}
foundCount++
debugEvents = append(debugEvents, &runtimes_pb.DebugEvent{
Timestamp: timestamppb.New(depl.CreatedAt),
Message: fmt.Sprintf("Deployment %s started.", depl.Id),
})
if depl.FailedTasks > 0 {
debugEvents = append(debugEvents, &runtimes_pb.DebugEvent{
Timestamp: timestamppb.New(depl.UpdatedAt),
Message: fmt.Sprintf("Deployment %s has %d failing tasks.", depl.Id, depl.FailedTasks),
})
}
}
}
if foundCount != 1 {
log.Printf("Found multiple PRIMARY deployments for service %s, marking it as PENDING", commonFlags.ecsServiceName)
ecsServiceObj.Status = extensions_pb.ExternalObject_PENDING
debugMessage = "Found multiple PRIMARY deployments"
}
sort.Slice(debugEvents, func(i, j int) bool {
// sort descending order
return debugEvents[i].Timestamp.AsTime().After(debugEvents[j].Timestamp.AsTime())
})
if ecsServiceObj.Status == extensions_pb.ExternalObject_PENDING {
ecsServiceObj.Message = debugMessage
ecsServiceObj.DebugEvents = debugEvents
}
return &extensions_pb.FetchOutput{
Objects: []*extensions_pb.ExternalObject{
ecsServiceObj,
},
}, nil
}
var fetchCmd = &cobra.Command{
Use: "fetch",
Short: "Fetch current state of an ECS service",
Args: cobra.NoArgs,
RunE: func(cmd *cobra.Command, args []string) error {
fetchOutput, err := runFetch()
if err != nil {
return err
}
output, err := protojson.Marshal(fetchOutput)
if err != nil {
return errors.Wrap(err, "failed to marshal")
}
_, err = os.Stdout.Write(output)
if err != nil {
return errors.Wrap(err, "failed to write to stdout")
}
return nil
},
}
func init() {
RootCmd.AddCommand(fetchCmd)
registerCommonFlags(fetchCmd)
}