/
efs.go
199 lines (183 loc) · 6.23 KB
/
efs.go
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package hatchery
import (
"fmt"
"os"
"strings"
"time"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/session"
"github.com/aws/aws-sdk-go/service/efs"
)
type EFS struct {
EFSArn string
FileSystemId string
AccessPointId string
}
func (creds *CREDS) getEFSFileSystem(userName string, svc *efs.EFS) (*efs.DescribeFileSystemsOutput, error) {
fsName := strings.ReplaceAll(os.Getenv("GEN3_ENDPOINT"), ".", "-") + userToResourceName(userName, "pod") + "fs"
fsName = truncateString(fsName, 64)
input := &efs.DescribeFileSystemsInput{
CreationToken: aws.String(fsName),
}
result, err := svc.DescribeFileSystems(input)
if err != nil {
return nil, fmt.Errorf("Failed to describe EFS FS: %s", err)
}
// return empty struct if no filesystems are found
if len(result.FileSystems) == 0 {
return nil, nil
}
return result, nil
}
// TODO: Check for MountTarget state regardless if fs exists or not
func (creds *CREDS) createMountTarget(FileSystemId string, svc *efs.EFS, userName string) (*efs.MountTargetDescription, error) {
networkInfo, err := creds.describeWorkspaceNetwork(userName)
if err != nil {
return nil, err
}
input := &efs.CreateMountTargetInput{
FileSystemId: aws.String(FileSystemId),
SubnetId: networkInfo.subnets.Subnets[0].SubnetId,
// TODO: Make this correct, currently it's all using the same SG
SecurityGroups: []*string{
networkInfo.securityGroups.SecurityGroups[0].GroupId,
},
}
result, err := svc.CreateMountTarget(input)
if err != nil {
return nil, fmt.Errorf("Failed to create mount target: %s", err)
}
return result, nil
}
func (creds *CREDS) createAccessPoint(FileSystemId string, userName string, svc *efs.EFS) (*string, error) {
exAccessPointInput := &efs.DescribeAccessPointsInput{
FileSystemId: &FileSystemId,
}
exResult, err := svc.DescribeAccessPoints(exAccessPointInput)
if err != nil {
return nil, err
}
ap := userToResourceName(userName, "service") + "-" + strings.ReplaceAll(os.Getenv("GEN3_ENDPOINT"), ".", "-") + "-accesspoint"
ap = truncateString(ap, 64)
if len(exResult.AccessPoints) == 0 {
input := &efs.CreateAccessPointInput{
// A string of up to 64 ASCII characters that Amazon EFS uses to ensure idempotent creation.
ClientToken: aws.String(ap),
FileSystemId: aws.String(FileSystemId),
PosixUser: &efs.PosixUser{
Gid: aws.Int64(100),
Uid: aws.Int64(1000),
},
RootDirectory: &efs.RootDirectory{
CreationInfo: &efs.CreationInfo{
OwnerGid: aws.Int64(100),
OwnerUid: aws.Int64(1000),
Permissions: aws.String("755"),
},
Path: aws.String("/pd"),
},
}
result, err := svc.CreateAccessPoint(input)
if err != nil {
return nil, fmt.Errorf("Failed to create accessPoint: %s", err)
}
return result.AccessPointId, nil
} else {
return exResult.AccessPoints[0].AccessPointId, nil
}
}
func (creds *CREDS) EFSFileSystem(userName string) (*EFS, error) {
svc := efs.New(session.Must(session.NewSession(&aws.Config{
Credentials: creds.creds,
// TODO: Make this configurable
Region: aws.String("us-east-1"),
})))
fsName := strings.ReplaceAll(os.Getenv("GEN3_ENDPOINT"), ".", "-") + userToResourceName(userName, "pod") + "fs"
fsName = truncateString(fsName, 64)
exisitingFS, err := creds.getEFSFileSystem(userName, svc)
if err != nil {
return nil, err
}
if exisitingFS == nil {
input := &efs.CreateFileSystemInput{
Backup: aws.Bool(false),
CreationToken: aws.String(fsName),
Encrypted: aws.Bool(true),
PerformanceMode: aws.String("generalPurpose"),
Tags: []*efs.Tag{
{
Key: aws.String("Name"),
Value: aws.String(fsName),
},
{
Key: aws.String("Environment"),
Value: aws.String(os.Getenv("GEN3_ENDPOINT")),
},
},
}
result, err := svc.CreateFileSystem(input)
if err != nil {
return nil, fmt.Errorf("Error creating EFS filesystem: %s", err)
}
exisitingFS, _ = creds.getEFSFileSystem(userName, svc)
for *exisitingFS.FileSystems[0].LifeCycleState != "available" {
Config.Logger.Printf("EFS filesystem is in state: %s ... Waiting for 2 seconds", *exisitingFS.FileSystems[0].LifeCycleState)
// sleep for 2 sec
time.Sleep(2 * time.Second)
exisitingFS, _ = creds.getEFSFileSystem(userName, svc)
}
// Create mount target
mountTarget, err := creds.createMountTarget(*result.FileSystemId, svc, userName)
if err != nil {
return nil, fmt.Errorf("Failed to create EFS MountTarget: %s", err)
}
Config.Logger.Printf("MountTarget created: %s", *mountTarget.MountTargetId)
accessPoint, err := creds.createAccessPoint(*result.FileSystemId, userName, svc)
if err != nil {
return nil, fmt.Errorf("Failed to create EFS AccessPoint: %s", err)
}
Config.Logger.Printf("AccessPoint created: %s", *accessPoint)
return &EFS{
EFSArn: *result.FileSystemArn,
FileSystemId: *result.FileSystemId,
AccessPointId: *accessPoint,
}, nil
} else {
// create accesspoint if it doesn't exist
accessPoint, err := svc.DescribeAccessPoints(&efs.DescribeAccessPointsInput{
FileSystemId: exisitingFS.FileSystems[0].FileSystemId,
})
if err != nil {
return nil, fmt.Errorf("failed to describe accesspoint: %s", err)
}
var accessPointId string
if len(accessPoint.AccessPoints) == 0 {
accessPointResult, err := creds.createAccessPoint(*exisitingFS.FileSystems[0].FileSystemId, userName, svc)
if err != nil {
return nil, fmt.Errorf("failed to create EFS AccessPoint: %s", err)
}
accessPointId = *accessPointResult
} else {
accessPointId = *accessPoint.AccessPoints[0].AccessPointId
}
// create mountTarget if it doesn't exist
exMountTarget, err := svc.DescribeMountTargets(&efs.DescribeMountTargetsInput{
FileSystemId: exisitingFS.FileSystems[0].FileSystemId,
})
if err != nil {
return nil, err
}
if len(exMountTarget.MountTargets) == 0 {
mountTarget, err := creds.createMountTarget(*exisitingFS.FileSystems[0].FileSystemId, svc, userName)
if err != nil {
return nil, fmt.Errorf("Failed to create EFS MountTarget: %s", err)
}
Config.Logger.Printf("MountTarget created: %s", *mountTarget.MountTargetId)
}
return &EFS{
EFSArn: *exisitingFS.FileSystems[0].FileSystemArn,
FileSystemId: *exisitingFS.FileSystems[0].FileSystemId,
AccessPointId: accessPointId,
}, nil
}
}