terraform/builtin/providers/aws/config.go

112 lines
3.0 KiB
Go

package aws
import (
"fmt"
"log"
"github.com/hashicorp/terraform/helper/multierror"
"github.com/awslabs/aws-sdk-go/aws"
"github.com/awslabs/aws-sdk-go/service/autoscaling"
"github.com/awslabs/aws-sdk-go/service/ec2"
"github.com/awslabs/aws-sdk-go/service/elb"
"github.com/awslabs/aws-sdk-go/service/iam"
"github.com/awslabs/aws-sdk-go/service/rds"
"github.com/awslabs/aws-sdk-go/service/route53"
"github.com/awslabs/aws-sdk-go/service/s3"
)
type Config struct {
AccessKey string
SecretKey string
Token string
Region string
}
type AWSClient struct {
ec2conn *ec2.EC2
elbconn *elb.ELB
autoscalingconn *autoscaling.AutoScaling
s3conn *s3.S3
r53conn *route53.Route53
region string
rdsconn *rds.RDS
iamconn *iam.IAM
}
// Client configures and returns a fully initailized AWSClient
func (c *Config) Client() (interface{}, error) {
var client AWSClient
// Get the auth and region. This can fail if keys/regions were not
// specified and we're attempting to use the environment.
var errs []error
log.Println("[INFO] Building AWS region structure")
err := c.ValidateRegion()
if err != nil {
errs = append(errs, err)
}
if len(errs) == 0 {
// store AWS region in client struct, for region specific operations such as
// bucket storage in S3
client.region = c.Region
log.Println("[INFO] Building AWS auth structure")
creds := aws.DetectCreds(c.AccessKey, c.SecretKey, c.Token)
awsConfig := &aws.Config{
Credentials: creds,
Region: c.Region,
}
log.Println("[INFO] Initializing ELB connection")
client.elbconn = elb.New(awsConfig)
log.Println("[INFO] Initializing S3 connection")
client.s3conn = s3.New(awsConfig)
log.Println("[INFO] Initializing RDS Connection")
client.rdsconn = rds.New(awsConfig)
log.Println("[INFO] Initializing IAM Connection")
client.iamconn = iam.New(awsConfig)
log.Println("[INFO] Initializing AutoScaling connection")
client.autoscalingconn = autoscaling.New(awsConfig)
log.Println("[INFO] Initializing EC2 Connection")
client.ec2conn = ec2.New(awsConfig)
// aws-sdk-go uses v4 for signing requests, which requires all global
// endpoints to use 'us-east-1'.
// See http://docs.aws.amazon.com/general/latest/gr/sigv4_changes.html
log.Println("[INFO] Initializing Route 53 connection")
client.r53conn = route53.New(&aws.Config{
Credentials: creds,
Region: "us-east-1",
})
}
if len(errs) > 0 {
return nil, &multierror.Error{Errors: errs}
}
return &client, nil
}
// IsValidRegion returns true if the configured region is a valid AWS
// region and false if it's not
func (c *Config) ValidateRegion() error {
var regions = [11]string{"us-east-1", "us-west-2", "us-west-1", "eu-west-1",
"eu-central-1", "ap-southeast-1", "ap-southeast-2", "ap-northeast-1",
"sa-east-1", "cn-north-1", "us-gov-west-1"}
for _, valid := range regions {
if c.Region == valid {
return nil
}
}
return fmt.Errorf("Not a valid region: %s", c.Region)
}