66 lines
1.2 KiB
Go
66 lines
1.2 KiB
Go
package etcdint
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import (
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"errors"
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"time"
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"github.com/sdstack/storage/cluster"
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"github.com/coreos/etcd/embed"
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"github.com/coreos/etcd/wal"
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"github.com/mitchellh/mapstructure"
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)
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type config struct {
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WalSize int64 `mapstructure:"wal_size"`
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Store string `mapstructure:"store"`
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}
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// Internal strect holds data used by internal cluster engine
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type ClusterEtcdint struct {
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etcdsrv *embed.Etcd
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etcdcfg *embed.Config
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cfg *config
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}
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func init() {
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cluster.RegisterCluster("etcdint", &ClusterEtcdint{})
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}
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func (c *ClusterEtcdint) Configure(data interface{}) error {
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var err error
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c.etcdcfg = embed.NewConfig()
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err = mapstructure.Decode(data, &c.cfg)
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if err != nil {
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return err
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}
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c.etcdcfg.Dir = c.cfg.Store
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return nil
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}
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// Start internal cluster engine
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func (c *ClusterEtcdint) Start() error {
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wal.SegmentSizeBytes = c.cfg.WalSize
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e, err := embed.StartEtcd(c.etcdcfg)
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if err != nil {
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return err
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}
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select {
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case <-e.Server.ReadyNotify():
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c.etcdsrv = e
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break
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case <-time.After(60 * time.Second):
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e.Server.Stop() // trigger a shutdown
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return errors.New("Server took too long to start!")
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}
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return nil
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}
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// Stop internal cluster engin
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func (c *ClusterEtcdint) Stop() error {
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c.etcdsrv.Server.Stop()
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return nil
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}
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