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Code Issues Releases Activity

pull aws region from ec2 metadata

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This commit is contained in:
Lee Brown
2019-07-14 01:07:14 -08:00
parent 8f5ff1ec1e
commit 5276254db5
5 changed files with 62 additions and 21 deletions
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19
cmd/web-api/main.go
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@ -6,7 +6,6 @@ import (
"encoding/json"
"expvar"
"fmt"
"geeks-accelerator/oss/saas-starter-kit/internal/platform/web"
"log"
"net"
"net/http"
@ -19,6 +18,8 @@ import (
"syscall"
"time"
"geeks-accelerator/oss/saas-starter-kit/internal/platform/web"
"github.com/aws/aws-sdk-go/aws/ec2metadata"
"geeks-accelerator/oss/saas-starter-kit/cmd/web-api/docs"
"geeks-accelerator/oss/saas-starter-kit/cmd/web-api/handlers"
"geeks-accelerator/oss/saas-starter-kit/internal/mid"
@ -121,7 +122,7 @@ func main() {
Aws struct {
AccessKeyID string `envconfig:"AWS_ACCESS_KEY_ID"` // WEB_API_AWS_AWS_ACCESS_KEY_ID or AWS_ACCESS_KEY_ID
SecretAccessKey string `envconfig:"AWS_SECRET_ACCESS_KEY" json:"-"` // don't print
Region string `default:"us-east-1" envconfig:"AWS_REGION"`
Region string `default:"us-west-2" envconfig:"AWS_REGION"`
S3BucketPrivate string `envconfig:"S3_BUCKET_PRIVATE"`
S3BucketPublic string `envconfig:"S3_BUCKET_PUBLIC"`
SecretsManagerConfigPrefix string `default:"" envconfig:"SECRETS_MANAGER_CONFIG_PREFIX"`
@ -168,6 +169,20 @@ func main() {
if cfg.Aws.UseRole {
cfg.Aws.AccessKeyID = ""
cfg.Aws.SecretAccessKey = ""
// Get an AWS session from an implicit source if no explicit
// configuration is provided. This is useful for taking advantage of
// EC2/ECS instance roles.
if cfg.Aws.Region == "" {
sess := session.Must(session.NewSession())
md := ec2metadata.New(sess)
var err error
cfg.Aws.Region, err = md.Region()
if err != nil {
log.Fatalf("main : Load region of ecs metadata : %+v", err)
}
}
}
// Set the default AWS Secrets Manager prefix used for name to store config files that will be persisted across