terraform/backend/remote-state/etcdv2/backend.go

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// legacy etcd2.x backend
package etcdv2
import (
"context"
"strings"
etcdapi "github.com/coreos/etcd/client"
"github.com/hashicorp/terraform/backend"
"github.com/hashicorp/terraform/helper/schema"
"github.com/hashicorp/terraform/states/remote"
"github.com/hashicorp/terraform/states/statemgr"
)
func New() backend.Backend {
s := &schema.Backend{
Schema: map[string]*schema.Schema{
"path": &schema.Schema{
Type: schema.TypeString,
Required: true,
Description: "The path where to store the state",
},
"endpoints": &schema.Schema{
Type: schema.TypeString,
Required: true,
Description: "A space-separated list of the etcd endpoints",
},
"username": &schema.Schema{
Type: schema.TypeString,
Optional: true,
Description: "Username",
},
"password": &schema.Schema{
Type: schema.TypeString,
Optional: true,
Description: "Password",
},
},
}
result := &Backend{Backend: s}
result.Backend.ConfigureFunc = result.configure
return result
}
type Backend struct {
*schema.Backend
client etcdapi.Client
path string
}
func (b *Backend) configure(ctx context.Context) error {
data := schema.FromContextBackendConfig(ctx)
b.path = data.Get("path").(string)
endpoints := data.Get("endpoints").(string)
username := data.Get("username").(string)
password := data.Get("password").(string)
config := etcdapi.Config{
Endpoints: strings.Split(endpoints, " "),
Username: username,
Password: password,
}
client, err := etcdapi.New(config)
if err != nil {
return err
}
b.client = client
return nil
}
func (b *Backend) Workspaces() ([]string, error) {
return nil, backend.ErrWorkspacesNotSupported
}
func (b *Backend) DeleteWorkspace(string) error {
return backend.ErrWorkspacesNotSupported
}
func (b *Backend) StateMgr(name string) (statemgr.Full, error) {
if name != backend.DefaultStateName {
return nil, backend.ErrWorkspacesNotSupported
}
return &remote.State{
Client: &EtcdClient{
Client: b.client,
Path: b.path,
},
}, nil
}