func (b *Brick) Destroy() error {
godbc.Require(b.NodeId != "")
godbc.Require(b.Path != "")
godbc.Require(b.db != nil)
// Just for now, it will work wih https://github.com/lpabon/vagrant-gfsm
sshexec := ssh.NewSshExecWithKeyFile("vagrant", "insecure_private_key")
godbc.Check(sshexec != nil)
// Get node name
var nodename string
err := b.db.Reader(func() error {
nodename = b.db.nodes[b.NodeId].Info.Name
return nil
})
// Delete brick storage
commands := []string{
fmt.Sprintf("sudo umount /gluster/brick_%v", b.Id),
fmt.Sprintf("sudo lvremove -f vg_%v/tp_%v", b.DeviceId, b.Id),
fmt.Sprintf("sudo rmdir /gluster/brick_%v", b.Id),
}
_, err = sshexec.ConnectAndExec(nodename+":22", commands, nil)
if err != nil {
return err
}
err = b.FreeStorage()
return err
}
func (v *VolumeEntry) CreateGlusterVolume() error {
// Get node name
var nodename string
var cmd string
err := v.db.Reader(func() error {
nodename = v.db.nodes[v.State.Bricks[0].NodeId].Info.Name
cmd = fmt.Sprintf("sudo gluster volume create %v replica %v ",
v.Info.Name, v.State.Replica)
for brick := range v.State.Bricks {
cmd += fmt.Sprintf("%v:/gluster/brick_%v/brick ",
v.db.nodes[v.State.Bricks[brick].NodeId].Info.Name, v.State.Bricks[brick].Id)
}
return nil
})
if err != nil {
return err
}
// Create gluster volume command
// :TODO: Add force for now. It will allow silly bricks on the same systems
// to work. Please remove once we add the intelligent ring
cmd += " force"
// Just for now, it will work wih https://github.com/lpabon/vagrant-gfsm
sshexec := ssh.NewSshExecWithKeyFile("vagrant", "insecure_private_key")
godbc.Check(sshexec != nil)
// Create volume
commands := []string{
cmd,
fmt.Sprintf("sudo gluster volume start %v", v.Info.Name),
}
_, err = sshexec.ConnectAndExec(nodename+":22", commands, nil)
if err != nil {
return err
}
// Setup mount point
v.Info.Mount = fmt.Sprintf("%v:%v", nodename, v.Info.Name)
// State
v.State.Created = true
v.State.Started = true
return nil
}
func (b *Brick) Create() error {
godbc.Require(b.db != nil)
godbc.Require(b.DeviceId != "")
// Just for now, it will work wih https://github.com/lpabon/vagrant-gfsm
sshexec := ssh.NewSshExecWithKeyFile("vagrant", "insecure_private_key")
godbc.Check(sshexec != nil)
var nodename string
err := b.db.Reader(func() error {
nodename = b.db.nodes[b.NodeId].Info.Name
return nil
})
commands := []string{
fmt.Sprintf("sudo lvcreate -L %vKiB -T vg_%v/tp_%v -V %vKiB -n brick_%v",
//Thin Pool Size
uint64(float64(b.Size)*THINP_SNAPSHOT_FACTOR),
// volume group
b.DeviceId,
// ThinP name
b.Id,
// Volume size
b.Size,
// Logical Vol name
b.Id),
fmt.Sprintf("sudo mkfs.xfs -i size=512 /dev/vg_%v/brick_%v", b.DeviceId, b.Id),
fmt.Sprintf("sudo mkdir /gluster/brick_%v", b.Id),
fmt.Sprintf("sudo mount /dev/vg_%v/brick_%v /gluster/brick_%v",
b.DeviceId, b.Id, b.Id),
fmt.Sprintf("sudo mkdir /gluster/brick_%v/brick", b.Id),
}
_, err = sshexec.ConnectAndExec(nodename+":22", commands, nil)
if err != nil {
return err
}
// SSH into node and create brick
b.Path = fmt.Sprintf("/gluster/brick_%v", b.Id)
return nil
}
func (m *GlusterFSPlugin) peerProbe(name string) error {
// Just for now, it will work wih https://github.com/lpabon/vagrant-gfsm
sshexec := ssh.NewSshExecWithKeyFile("vagrant", "insecure_private_key")
godbc.Check(sshexec != nil)
// create the commands
commands := []string{
fmt.Sprintf("sudo gluster peer probe %v", name),
}
_, err := sshexec.ConnectAndExec(m.peerHost+":22", commands, nil)
if err != nil {
return err
}
return nil
}
func (v *VolumeEntry) Destroy() error {
godbc.Require(v.db != nil)
sshexec := ssh.NewSshExecWithKeyFile("vagrant", "insecure_private_key")
godbc.Check(sshexec != nil)
// Get node name
var nodename string
err := v.db.Reader(func() error {
nodename = v.db.nodes[v.State.Bricks[0].NodeId].Info.Name
return nil
})
if err != nil {
return err
}
// Shutdown volume
commands := []string{
// stop gluster volume
fmt.Sprintf("yes | sudo gluster volume stop %v force", v.Info.Name),
fmt.Sprintf("yes | sudo gluster volume delete %v", v.Info.Name),
}
_, err = sshexec.ConnectAndExec(nodename+":22", commands, nil)
if err != nil {
return errors.New("Unable to shutdown volume")
}
// Destroy bricks
var wg sync.WaitGroup
for brick := range v.State.Bricks {
wg.Add(1)
go func(b int) {
defer wg.Done()
v.State.Bricks[b].Destroy()
}(brick)
}
wg.Wait()
return nil
}
func NewSshExecutor(config *SshConfig) *SshExecutor {
godbc.Require(config != nil)
godbc.Require(DEFAULT_MAX_CONNECTIONS > 1)
s := &SshExecutor{}
s.throttlemap = make(map[string]chan bool)
// Set configuration
if config.PrivateKeyFile == "" {
s.private_keyfile = os.Getenv("HOME") + "/.ssh/id_rsa"
} else {
s.private_keyfile = config.PrivateKeyFile
}
if config.User == "" {
s.user = "******"
} else {
s.user = config.User
}
s.config = config
// Show experimental settings
if s.config.RebalanceOnExpansion {
logger.Warning("Rebalance on volume expansion has been enabled. This is an EXPERIMENTAL feature")
}
// Setup key
s.exec = ssh.NewSshExecWithKeyFile(logger, s.user, s.private_keyfile)
if s.exec == nil {
logger.LogError("Unable to load ssh user and private keyfile")
return nil
}
godbc.Ensure(s != nil)
godbc.Ensure(s.config == config)
godbc.Ensure(s.user != "")
godbc.Ensure(s.private_keyfile != "")
return s
}
