k8s-csi-s3/pkg/s3/mounter_s3fs.go
Cyrill Troxler 1caf469966 Implement a metadata file and correct sizing
As the controller does not mount/create the fs we have to store the capacity somewhere so the node knows about it.
2018-07-27 13:28:52 +02:00

70 lines
1.4 KiB
Go

package s3
import (
"fmt"
"os"
)
// Implements Mounter
type s3fsMounter struct {
bucket *bucket
url string
region string
pwFileContent string
}
const (
s3fsCmd = "s3fs"
)
func newS3fsMounter(b *bucket, cfg *Config) (Mounter, error) {
return &s3fsMounter{
bucket: b,
url: cfg.Endpoint,
region: cfg.Region,
pwFileContent: cfg.AccessKeyID + ":" + cfg.SecretAccessKey,
}, nil
}
func (s3fs *s3fsMounter) Stage(stageTarget string) error {
return nil
}
func (s3fs *s3fsMounter) Unstage(stageTarget string) error {
return nil
}
func (s3fs *s3fsMounter) Mount(source string, target string) error {
if err := writes3fsPass(s3fs.pwFileContent); err != nil {
return err
}
args := []string{
fmt.Sprintf("%s", s3fs.bucket.Name),
fmt.Sprintf("%s", target),
"-o", "sigv2",
"-o", "use_path_request_style",
"-o", fmt.Sprintf("url=%s", s3fs.url),
"-o", fmt.Sprintf("endpoint=%s", s3fs.region),
"-o", "allow_other",
"-o", "mp_umask=000",
}
return fuseMount(target, s3fsCmd, args)
}
func (s3fs *s3fsMounter) Unmount(target string) error {
return fuseUnmount(target, s3fsCmd)
}
func writes3fsPass(pwFileContent string) error {
pwFileName := fmt.Sprintf("%s/.passwd-s3fs", os.Getenv("HOME"))
pwFile, err := os.OpenFile(pwFileName, os.O_RDWR|os.O_CREATE, 0600)
if err != nil {
return err
}
_, err = pwFile.WriteString(pwFileContent)
if err != nil {
return err
}
pwFile.Close()
return nil
}