/
sqs.go
191 lines (165 loc) · 4.7 KB
/
sqs.go
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package main
import (
"context"
"encoding/json"
"fmt"
"log"
"net/url"
"strings"
"time"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/credentials"
"github.com/aws/aws-sdk-go/aws/session"
"github.com/aws/aws-sdk-go/service/sqs"
)
const queueBaseUrl = "https://sqs.ap-northeast-1.amazonaws.com/424484851194"
type Environment string
var (
Develop Environment = "develop"
Production Environment = "prod"
)
type Result struct {
ID int `json:"id"`
Status string `json:"status"`
Score int64 `json:"score,omitempty"`
IsPassed bool `json:"is_passed,omitempty"`
Reason string `json:"reason,omitempty"`
Stdout string `json:"stdout,omitempty"`
Stderr string `json:"stderr,omitempty"`
ResolvedCount int64 `json:"resolved_count"`
Language string `json:"language"`
FinishedAt time.Time `json:"finished_at,omitempty"`
}
func (r *Result) Summary() string {
if r == nil {
return ""
}
var sb strings.Builder
sb.WriteString(fmt.Sprintf("jobid=%d", r.ID))
sb.WriteString(fmt.Sprintf("status=%s", r.Status))
sb.WriteString(fmt.Sprintf("ispassed=%+v", r.IsPassed))
// skip reason, stdout, stderr
sb.WriteString(fmt.Sprintf("resolved_count=%d", r.ResolvedCount))
sb.WriteString(fmt.Sprintf("language=%s", r.Language))
sb.WriteString(fmt.Sprintf("finished_at=%s", r.FinishedAt.String()))
return sb.String()
}
func NewAbortResult(id int) *Result {
return &Result{
ID: id,
Status: StatusFailed,
}
}
func NewRunningResult(id int) *Result {
return &Result{
ID: id,
Status: StatusRunning,
}
}
type Job struct {
ID int `json:"id"`
Action string `json:"action,omitempty"`
Team int `json:"team"`
TargetIP string `json:"target_ip"`
Servers []string `json:"servers"`
}
type Portal struct {
client *sqs.SQS
sendQueueUrl string
recvQueueUrl string
}
func NewPortal(
azID string,
environment Environment,
accessKey, secretAccessKey string,
) (*Portal, error) {
log.Printf("azid = %s\n", azID)
if !strings.HasPrefix(azID, "apne1-az") {
return nil, fmt.Errorf("invalid availability zone: %s", azID)
}
sess := session.Must(session.NewSession(&aws.Config{
Region: aws.String("ap-northeast-1"),
Credentials: credentials.NewStaticCredentials(accessKey, secretAccessKey, ""),
}))
client := sqs.New(sess)
// NOTE: ポータルへの送信キューはAZ分散しない
sendQueueName := fmt.Sprintf("%s-job-result", environment)
sendQueueUrl, err := url.JoinPath(queueBaseUrl, sendQueueName)
if err != nil {
return nil, err
}
// NOTE: ポータルからの受信キューはAZ分散する
recvQueueName := fmt.Sprintf("%s-job-queue-%s.fifo", environment, azID)
recvQueueUrl, err := url.JoinPath(queueBaseUrl, recvQueueName)
if err != nil {
return nil, err
}
log.Printf("Send Queue: %s\n", sendQueueUrl)
log.Printf("Recv Queue: %s\n", recvQueueUrl)
return &Portal{
client: client,
sendQueueUrl: sendQueueUrl,
recvQueueUrl: recvQueueUrl,
}, nil
}
func (s *Portal) SendResult(ctx context.Context, job *Job, result *Result) error {
log.Println("send result")
log.Printf("job = %+v\n", job)
log.Println(result.Summary())
b, err := json.Marshal(result)
if err != nil {
return err
}
if _, err := s.client.SendMessageWithContext(ctx, &sqs.SendMessageInput{
QueueUrl: aws.String(s.sendQueueUrl),
MessageBody: aws.String(string(b)),
}); err != nil {
return err
}
return nil
}
func (s *Portal) StartReceiveJob(ctx context.Context) <-chan *Job {
ch := make(chan *Job)
go func() {
defer close(ch)
loop:
for {
select {
case <-ctx.Done():
return
default:
resp, err := s.client.ReceiveMessageWithContext(ctx, &sqs.ReceiveMessageInput{
QueueUrl: aws.String(s.recvQueueUrl),
MaxNumberOfMessages: aws.Int64(1),
WaitTimeSeconds: aws.Int64(1),
})
if err != nil {
log.Printf("Receive message error: %s\n", err.Error())
continue loop
}
if len(resp.Messages) == 0 {
continue loop
}
msg := resp.Messages[0]
log.Println("decode json")
var job *Job
if err := json.NewDecoder(strings.NewReader(*msg.Body)).Decode(&job); err != nil {
log.Printf("failed to decode json: %s\n", err.Error())
continue loop
}
log.Println("delete old sqs message")
// NOTE: ジョブを取れたらすぐに削除 (可視性タイムアウト)
if _, err := s.client.DeleteMessage(&sqs.DeleteMessageInput{
QueueUrl: aws.String(s.recvQueueUrl),
ReceiptHandle: msg.ReceiptHandle,
}); err != nil {
log.Printf("failed to delete sqs message: %s\n", err.Error())
continue loop
}
log.Println("accept job")
ch <- job
}
}
}()
return ch
}