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Diffstat (limited to 'bookpipeline/aws.go')
-rw-r--r--bookpipeline/aws.go322
1 files changed, 0 insertions, 322 deletions
diff --git a/bookpipeline/aws.go b/bookpipeline/aws.go
deleted file mode 100644
index 0127d6e..0000000
--- a/bookpipeline/aws.go
+++ /dev/null
@@ -1,322 +0,0 @@
-package bookpipeline
-
-import (
- "errors"
- "fmt"
- "log"
- "os"
- "time"
-
- "github.com/aws/aws-sdk-go/aws"
- "github.com/aws/aws-sdk-go/aws/awserr"
- "github.com/aws/aws-sdk-go/aws/session"
- "github.com/aws/aws-sdk-go/service/ec2"
- "github.com/aws/aws-sdk-go/service/s3"
- "github.com/aws/aws-sdk-go/service/s3/s3manager"
- "github.com/aws/aws-sdk-go/service/sqs"
-)
-
-const PreprocPattern = `_bin[0-9].[0-9].png`
-const heartbeatRetry = 10
-
-type Qmsg struct {
- Id, Handle, Body string
-}
-
-type InstanceDetails struct {
- Id, Name, Ip, Spot, Type, State, LaunchTime string
-}
-
-type AwsConn struct {
- // these need to be set before running Init()
- Region string
- Logger *log.Logger
-
- // these are used internally
- sess *session.Session
- ec2svc *ec2.EC2
- s3svc *s3.S3
- sqssvc *sqs.SQS
- downloader *s3manager.Downloader
- uploader *s3manager.Uploader
- wipequrl, prequrl, ocrqurl, analysequrl string
- wipstorageid string
-}
-
-// TODO: split this up, as not everything is needed for different uses
-func (a *AwsConn) Init() error {
- if a.Region == "" {
- return errors.New("No Region set")
- }
- if a.Logger == nil {
- return errors.New("No logger set")
- }
-
- var err error
- a.sess, err = session.NewSession(&aws.Config{
- Region: aws.String(a.Region),
- })
- if err != nil {
- return errors.New(fmt.Sprintf("Failed to set up aws session: %s", err))
- }
- a.ec2svc = ec2.New(a.sess)
- a.s3svc = s3.New(a.sess)
- a.sqssvc = sqs.New(a.sess)
- a.downloader = s3manager.NewDownloader(a.sess)
- a.uploader = s3manager.NewUploader(a.sess)
-
- a.Logger.Println("Getting preprocess queue URL")
- result, err := a.sqssvc.GetQueueUrl(&sqs.GetQueueUrlInput{
- QueueName: aws.String("rescribepreprocess"),
- })
- if err != nil {
- return errors.New(fmt.Sprintf("Error getting preprocess queue URL: %s", err))
- }
- a.prequrl = *result.QueueUrl
-
- a.Logger.Println("Getting wipeonly queue URL")
- result, err = a.sqssvc.GetQueueUrl(&sqs.GetQueueUrlInput{
- QueueName: aws.String("rescribewipeonly"),
- })
- if err != nil {
- return errors.New(fmt.Sprintf("Error getting wipeonly queue URL: %s", err))
- }
- a.wipequrl = *result.QueueUrl
-
- a.Logger.Println("Getting OCR queue URL")
- result, err = a.sqssvc.GetQueueUrl(&sqs.GetQueueUrlInput{
- QueueName: aws.String("rescribeocr"),
- })
- if err != nil {
- return errors.New(fmt.Sprintf("Error getting OCR queue URL: %s", err))
- }
- a.ocrqurl = *result.QueueUrl
-
- a.Logger.Println("Getting analyse queue URL")
- result, err = a.sqssvc.GetQueueUrl(&sqs.GetQueueUrlInput{
- QueueName: aws.String("rescribeanalyse"),
- })
- if err != nil {
- return errors.New(fmt.Sprintf("Error getting analyse queue URL: %s", err))
- }
- a.analysequrl = *result.QueueUrl
-
- a.wipstorageid = "rescribeinprogress"
-
- return nil
-}
-
-func (a *AwsConn) CheckQueue(url string, timeout int64) (Qmsg, error) {
- msgResult, err := a.sqssvc.ReceiveMessage(&sqs.ReceiveMessageInput{
- MaxNumberOfMessages: aws.Int64(1),
- VisibilityTimeout: &timeout,
- WaitTimeSeconds: aws.Int64(20),
- QueueUrl: &url,
- })
- if err != nil {
- return Qmsg{}, err
- }
-
- if len(msgResult.Messages) > 0 {
- msg := Qmsg{Id: *msgResult.Messages[0].MessageId,
- Handle: *msgResult.Messages[0].ReceiptHandle,
- Body: *msgResult.Messages[0].Body}
- a.Logger.Println("Message received:", msg.Body)
- return msg, nil
- } else {
- return Qmsg{}, nil
- }
-}
-
-// QueueHeartbeat updates the visibility timeout of a message. This
-// ensures that the message remains "in flight", meaning that it
-// cannot be seen by other processes, but if this process fails the
-// timeout will expire and it will go back to being available for
-// any other process to retrieve and process.
-//
-// SQS only allows messages to be "in flight" for up to 12 hours, so
-// this will detect if the request for an update to visibility timeout
-// fails, and if so will attempt to find the message on the queue, and
-// return it, as the handle will have changed.
-func (a *AwsConn) QueueHeartbeat(msg Qmsg, qurl string, duration int64) (Qmsg, error) {
- _, err := a.sqssvc.ChangeMessageVisibility(&sqs.ChangeMessageVisibilityInput{
- ReceiptHandle: &msg.Handle,
- QueueUrl: &qurl,
- VisibilityTimeout: &duration,
- })
- if err != nil {
- aerr, ok := err.(awserr.Error)
-
- // Check if the visibility timeout has exceeded the maximum allowed,
- // and if so try to find the message again to get a new handle.
- if ok && aerr.Code() == "InvalidParameterValue" {
- // Try heartbeatRetry times to find the message
- for range [heartbeatRetry]bool{} {
- // Wait a little in case existing visibilitytimeout needs to expire
- time.Sleep((time.Duration(duration) / heartbeatRetry) * time.Second)
-
- msgResult, err := a.sqssvc.ReceiveMessage(&sqs.ReceiveMessageInput{
- MaxNumberOfMessages: aws.Int64(10),
- VisibilityTimeout: &duration,
- WaitTimeSeconds: aws.Int64(20),
- QueueUrl: &qurl,
- })
- if err != nil {
- return Qmsg{}, errors.New(fmt.Sprintf("Heartbeat error looking for message to update heartbeat: %s", err))
- }
- for _, m := range msgResult.Messages {
- if *m.MessageId == msg.Id {
- return Qmsg{
- Id: *m.MessageId,
- Handle: *m.ReceiptHandle,
- Body: *m.Body,
- }, nil
- }
- }
- }
- return Qmsg{}, errors.New("Heartbeat error failed to find message to update heartbeat")
- } else {
- return Qmsg{}, errors.New(fmt.Sprintf("Heartbeat error updating queue duration: %s", err))
- }
- }
- return Qmsg{}, nil
-}
-
-// GetQueueDetails gets the number of in progress and available
-// messages for a queue. These are returned as strings.
-func (a *AwsConn) GetQueueDetails(url string) (string, string, error) {
- numAvailable := "ApproximateNumberOfMessages"
- numInProgress := "ApproximateNumberOfMessagesNotVisible"
- attrs, err := a.sqssvc.GetQueueAttributes(&sqs.GetQueueAttributesInput{
- AttributeNames: []*string{&numAvailable, &numInProgress},
- QueueUrl: &url,
- })
- if err != nil {
- return "", "", errors.New(fmt.Sprintf("Failed to get queue attributes: %s", err))
- }
- return *attrs.Attributes[numAvailable], *attrs.Attributes[numInProgress], nil
-}
-
-func (a *AwsConn) PreQueueId() string {
- return a.prequrl
-}
-
-func (a *AwsConn) WipeQueueId() string {
- return a.wipequrl
-}
-
-func (a *AwsConn) OCRQueueId() string {
- return a.ocrqurl
-}
-
-func (a *AwsConn) AnalyseQueueId() string {
- return a.analysequrl
-}
-
-func (a *AwsConn) WIPStorageId() string {
- return a.wipstorageid
-}
-
-func (a *AwsConn) ListObjects(bucket string, prefix string) ([]string, error) {
- var names []string
- err := a.s3svc.ListObjectsV2Pages(&s3.ListObjectsV2Input{
- Bucket: aws.String(bucket),
- Prefix: aws.String(prefix),
- }, func(page *s3.ListObjectsV2Output, last bool) bool {
- for _, r := range page.Contents {
- names = append(names, *r.Key)
- }
- return true
- })
- return names, err
-}
-
-func (a *AwsConn) AddToQueue(url string, msg string) error {
- _, err := a.sqssvc.SendMessage(&sqs.SendMessageInput{
- MessageBody: &msg,
- QueueUrl: &url,
- })
- return err
-}
-
-func (a *AwsConn) DelFromQueue(url string, handle string) error {
- _, err := a.sqssvc.DeleteMessage(&sqs.DeleteMessageInput{
- QueueUrl: &url,
- ReceiptHandle: &handle,
- })
- return err
-}
-
-func (a *AwsConn) Download(bucket string, key string, path string) error {
- f, err := os.Create(path)
- if err != nil {
- return err
- }
- defer f.Close()
-
- _, err = a.downloader.Download(f,
- &s3.GetObjectInput{
- Bucket: aws.String(bucket),
- Key: &key,
- })
- return err
-}
-
-func (a *AwsConn) Upload(bucket string, key string, path string) error {
- file, err := os.Open(path)
- if err != nil {
- log.Fatalln("Failed to open file", path, err)
- }
- defer file.Close()
-
- _, err = a.uploader.Upload(&s3manager.UploadInput{
- Bucket: aws.String(bucket),
- Key: aws.String(key),
- Body: file,
- })
- return err
-}
-
-func (a *AwsConn) GetLogger() *log.Logger {
- return a.Logger
-}
-
-func instanceDetailsFromPage(page *ec2.DescribeInstancesOutput) []InstanceDetails {
- var details []InstanceDetails
- for _, r := range page.Reservations {
- for _, i := range r.Instances {
- var d InstanceDetails
-
- for _, t := range i.Tags {
- if *t.Key == "Name" {
- d.Name = *t.Value
- }
- }
- if i.PublicIpAddress != nil {
- d.Ip = *i.PublicIpAddress
- }
- if i.SpotInstanceRequestId != nil {
- d.Spot = *i.SpotInstanceRequestId
- }
- d.Type = *i.InstanceType
- d.Id = *i.InstanceId
- d.LaunchTime = i.LaunchTime.String()
- d.State = *i.State.Name
-
- details = append(details, d)
- }
- }
-
- return details
-}
-
-func (a *AwsConn) GetInstanceDetails() ([]InstanceDetails, error) {
- var details []InstanceDetails
- err := a.ec2svc.DescribeInstancesPages(&ec2.DescribeInstancesInput{}, func(page *ec2.DescribeInstancesOutput, lastPage bool) bool {
- for _, d := range instanceDetailsFromPage(page) {
- details = append(details, d)
- }
- return !lastPage
- })
- return details, err
-}
generated by cgit v1.2.1-24-ge1ad (git 2.21.0) at 2024-04-28 00:33:47 +0000