mirror of
https://github.com/etcd-io/etcd.git
synced 2024-09-27 06:25:44 +00:00
78 lines
2.2 KiB
Go
78 lines
2.2 KiB
Go
/*
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Copyright 2014 CoreOS, Inc.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package etcdserver
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import (
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"fmt"
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"net/http"
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"path"
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"github.com/coreos/etcd/pkg/types"
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"github.com/coreos/etcd/raft"
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)
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// ServerConfig holds the configuration of etcd as taken from the command line or discovery.
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type ServerConfig struct {
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Name string
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DiscoveryURL string
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ClientURLs types.URLs
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DataDir string
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SnapCount uint64
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Cluster *Cluster
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ClusterState ClusterState
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Transport *http.Transport
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}
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// VerifyBootstrapConfig sanity-checks the initial config and returns an error
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// for things that should never happen.
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func (c *ServerConfig) VerifyBootstrapConfig() error {
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if c.DiscoveryURL == "" && c.ClusterState != ClusterStateValueNew {
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return fmt.Errorf("initial cluster state unset and no wal or discovery URL found")
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}
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// Make sure the cluster at least contains the local server.
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m := c.Cluster.FindName(c.Name)
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if m == nil {
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return fmt.Errorf("could not find name %v in cluster", c.Name)
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}
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if m.ID == raft.None {
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return fmt.Errorf("could not use %x as member id", raft.None)
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}
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// No identical IPs in the cluster peer list
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urlMap := make(map[string]bool)
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for _, m := range *c.Cluster {
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for _, url := range m.PeerURLs {
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if urlMap[url] {
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return fmt.Errorf("duplicate url %v in server config", url)
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}
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urlMap[url] = true
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}
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}
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return nil
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}
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func (c *ServerConfig) WALDir() string { return path.Join(c.DataDir, "wal") }
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func (c *ServerConfig) SnapDir() string { return path.Join(c.DataDir, "snap") }
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func (c *ServerConfig) ID() uint64 { return c.Cluster.FindName(c.Name).ID }
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func (c *ServerConfig) ShouldDiscover() bool {
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return c.DiscoveryURL != ""
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}
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