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main.go
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main.go
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package main
import (
"bytes"
"context"
"encoding/json"
"fmt"
"github.com/aws/aws-lambda-go/events"
"github.com/aws/aws-lambda-go/lambda"
"github.com/aws/aws-sdk-go-v2/aws"
"github.com/aws/aws-sdk-go-v2/config"
"github.com/aws/aws-sdk-go-v2/feature/s3/manager"
"github.com/aws/aws-sdk-go-v2/service/s3"
"github.com/hashicorp/go-tfe"
log "github.com/sirupsen/logrus"
"net/http"
"os"
"strings"
"time"
)
type Payload struct {
PayloadVersion int `json:"payload_version"`
NotificationConfigurationID string `json:"notification_configuration_id"`
RunURL string `json:"run_url"`
RunID string `json:"run_id"`
RunMessage string `json:"run_message"`
RunCreatedAt time.Time `json:"run_created_at"`
RunCreatedBy string `json:"run_created_by"`
WorkspaceID string `json:"workspace_id"`
WorkspaceName string `json:"workspace_name"`
OrganizationName string `json:"organization_name"`
Notifications []struct {
Message string `json:"message"`
Trigger string `json:"trigger"`
RunStatus string `json:"run_status"`
RunUpdatedAt time.Time `json:"run_updated_at"`
RunUpdatedBy string `json:"run_updated_by"`
} `json:"notifications"`
}
var tfe_token string = os.Getenv("TF_TOKEN")
var bucket string = os.Getenv("BUCKET")
func UploadToS3(key string, body string) error {
cfg, err := config.LoadDefaultConfig(context.TODO())
client := s3.NewFromConfig(cfg)
uploader := manager.NewUploader(client)
_, err = uploader.Upload(context.TODO(), &s3.PutObjectInput{
Bucket: aws.String(bucket),
Key: aws.String(key),
Body: bytes.NewReader([]byte(body)),
})
return err
}
func DownloadBody(url string) (string, error) {
resp, err := http.Get(url)
if err != nil {
return "", err
}
buff := new(bytes.Buffer)
_, err = buff.ReadFrom(resp.Body)
if err != nil {
return "", err
}
return buff.String(), err
}
func GetLastStateVersion(workspaceId string) (*tfe.StateVersion, error) {
var state *tfe.StateVersion
tfe_client, err := tfe.NewClient(&tfe.Config{
Token: tfe_token,
})
if err != nil {
log.Println(err)
return state, err
}
state, err = tfe_client.StateVersions.Current(context.Background(), workspaceId)
if err != nil {
log.Println("Error", err)
return state, err
}
return state, nil
}
func SaveLastState(payload Payload) (string, error) {
state, err := GetLastStateVersion(payload.WorkspaceID)
if err != nil {
return "", err
}
key := fmt.Sprintf("%s/%s/%s/%s-%v-%s-%s.json", payload.OrganizationName, payload.WorkspaceName, state.CreatedAt.Format("2006/01/02"),
payload.WorkspaceName, state.Serial, state.ID, payload.RunID)
body, err := DownloadBody(state.DownloadURL)
if err != nil {
return "", err
}
err = UploadToS3(key, body)
if err == nil {
log.Println("Terraform State saved in: ", key)
}
return key, err
}
func StatusModified(payload Payload) bool {
for _, v := range payload.Notifications {
return strings.Contains(v.RunStatus, "errored") || strings.Contains(v.RunStatus, "applied")
}
return false
}
func Handler(ctx context.Context, event events.APIGatewayProxyRequest) (events.APIGatewayProxyResponse, error) {
payload := Payload{}
json.Unmarshal([]byte(event.Body), &payload)
if StatusModified(payload) {
_, err := SaveLastState(payload)
if err != nil {
log.Println(err)
return events.APIGatewayProxyResponse{StatusCode: 500}, err
}
}
return events.APIGatewayProxyResponse{StatusCode: 200}, nil
}
func main() {
lambda.Start(Handler)
}