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/
cluster.go
99 lines (84 loc) · 2.38 KB
/
cluster.go
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// Copyright 2017 CoreOS, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package do
import (
"context"
"crypto/rand"
"fmt"
"os"
"path/filepath"
"github.com/coreos/mantle/platform"
"github.com/coreos/mantle/platform/conf"
)
type cluster struct {
*platform.BaseCluster
flight *flight
sshKeyID int
}
func (dc *cluster) NewMachine(userdata *conf.UserData) (platform.Machine, error) {
conf, err := dc.RenderUserData(userdata, map[string]string{
"$public_ipv4": "${COREOS_DIGITALOCEAN_IPV4_PUBLIC_0}",
"$private_ipv4": "${COREOS_DIGITALOCEAN_IPV4_PRIVATE_0}",
})
if err != nil {
return nil, err
}
droplet, err := dc.flight.api.CreateDroplet(context.TODO(), dc.vmname(), dc.sshKeyID, conf.String())
if err != nil {
return nil, err
}
mach := &machine{
cluster: dc,
droplet: droplet,
}
mach.publicIP, err = droplet.PublicIPv4()
if mach.publicIP == "" || err != nil {
mach.Destroy()
return nil, fmt.Errorf("couldn't get public IP address for droplet: %v", err)
}
mach.privateIP, err = droplet.PrivateIPv4()
if mach.privateIP == "" || err != nil {
mach.Destroy()
return nil, fmt.Errorf("couldn't get private IP address for droplet: %v", err)
}
dir := filepath.Join(dc.RuntimeConf().OutputDir, mach.ID())
if err := os.Mkdir(dir, 0777); err != nil {
mach.Destroy()
return nil, err
}
confPath := filepath.Join(dir, "user-data")
if err := conf.WriteFile(confPath); err != nil {
mach.Destroy()
return nil, err
}
if mach.journal, err = platform.NewJournal(dir); err != nil {
mach.Destroy()
return nil, err
}
if err := platform.StartMachine(mach, mach.journal); err != nil {
mach.Destroy()
return nil, err
}
dc.AddMach(mach)
return mach, nil
}
func (dc *cluster) vmname() string {
b := make([]byte, 5)
rand.Read(b)
return fmt.Sprintf("%s-%x", dc.Name()[0:13], b)
}
func (dc *cluster) Destroy() {
dc.BaseCluster.Destroy()
dc.flight.DelCluster(dc)
}