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environment.go
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environment.go
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package aws
import (
"bufio"
"bytes"
"fmt"
log "github.com/Sirupsen/logrus"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/service/s3"
"io/ioutil"
"strings"
pb "github.com/dinesh/datacol/api/models"
"io"
)
func (a *AwsCloud) s3KeyForEnv(name string) string {
return fmt.Sprintf("%s/.env", name)
}
func (a *AwsCloud) EnvironmentGet(name string) (pb.Environment, error) {
s3key := a.s3KeyForEnv(name)
data, err := a.s3Get(a.SettingBucket, s3key)
if err != nil {
if aerr, ok := err.(awserr.Error); ok && aerr.Code() == s3.ErrCodeNoSuchKey {
return pb.Environment{}, nil
}
return nil, err
}
return loadEnv(data), nil
}
func (a *AwsCloud) EnvironmentSet(name string, r io.Reader) error {
data, err := ioutil.ReadAll(r)
if err != nil {
return err
}
s3key := a.s3KeyForEnv(name)
return a.s3Put(a.SettingBucket, s3key, data)
}
func (a *AwsCloud) s3Get(bucket, key string) ([]byte, error) {
log.Debugf("Fetching data from s3://%s/%s", bucket, key)
res, err := a.s3().GetObject(&s3.GetObjectInput{
Bucket: aws.String(bucket),
Key: aws.String(key),
})
if err != nil {
return nil, err
}
return ioutil.ReadAll(res.Body)
}
func (a *AwsCloud) s3Put(bucket, key string, data []byte) error {
req := &s3.PutObjectInput{
Body: bytes.NewReader(data),
Bucket: aws.String(bucket),
ContentLength: aws.Int64(int64(len(data))),
Key: aws.String(key),
}
_, err := a.s3().PutObject(req)
return err
}
func loadEnv(data []byte) pb.Environment {
e := pb.Environment{}
scanner := bufio.NewScanner(bytes.NewReader(data))
for scanner.Scan() {
parts := strings.SplitN(scanner.Text(), "=", 2)
if len(parts) == 2 {
if key := strings.TrimSpace(parts[0]); key != "" {
e[key] = parts[1]
}
}
}
return e
}