安装 Etcd

说明

Zebra 使用 Etcd 作为注册中心，版本为 3.1.7。

本指导只提供安装单机版的 Etcd 的相关指导，实际生产环境需使用Etcd Cluster 模式，具体安装步骤请参考 Etcd 官方网站。

下载

点击 https://github.com/etcd-io/etcd/releases/download/v3.1.7/etcd-v3.1.7-linux-amd64.tar.gz 下载 Etcd。

上传

上传下载的 Etcd 到 /tmp 目录，然后执行如下命令。

  1. mkdir -p /opt/zebra/etcd
  2. tar xzvf /tmp/etcd-v3.1.7-linux-amd64.tar.gz -C /opt/zebra/etcd --strip-components=1
  3. rm -rf /tmp/etcd-v3.1.7-linux-amd64.tar.gz

添加配置

执行如下命令

  1. mkdir -p /opt/zebra/etcd/conf
  2. touch /opt/zebra/etcd/conf/etcd.conf.yml

把下面配置添加到 etcd.conf.yml 里面。 // TODO 要替换为github的链接，不直接贴配置。

  1. # This is the configuration file for the etcd server.
  3. # Human-readable name for this member.
  4. name: 'default'
  6. # Path to the data directory.
  7. data-dir:
  9. # Path to the dedicated wal directory.
  10. wal-dir:
  12. # Number of committed transactions to trigger a snapshot to disk.
  13. snapshot-count: 10000
  15. # Time (in milliseconds) of a heartbeat interval.
  16. heartbeat-interval: 100
  18. # Time (in milliseconds) for an election to timeout.
  19. election-timeout: 1000
  21. # Raise alarms when backend size exceeds the given quota. 0 means use the
  22. # default quota.
  23. quota-backend-bytes: 0
  25. # List of comma separated URLs to listen on for peer traffic.
  26. listen-peer-urls: http://0.0.0.0:2380
  28. # List of comma separated URLs to listen on for client traffic.
  29. listen-client-urls: http://0.0.0.0:2379
  31. # Maximum number of snapshot files to retain (0 is unlimited).
  32. max-snapshots: 5
  34. # Maximum number of wal files to retain (0 is unlimited).
  35. max-wals: 5
  37. # Comma-separated white list of origins for CORS (cross-origin resource sharing).
  38. cors:
  40. # List of this member's peer URLs to advertise to the rest of the cluster.
  41. # The URLs needed to be a comma-separated list.
  42. initial-advertise-peer-urls: http://0.0.0.0:2380
  44. # List of this member's client URLs to advertise to the public.
  45. # The URLs needed to be a comma-separated list.
  46. advertise-client-urls: http://0.0.0.0:2379
  48. # Discovery URL used to bootstrap the cluster.
  49. discovery:
  51. # Valid values include 'exit', 'proxy'
  52. discovery-fallback: 'proxy'
  54. # HTTP proxy to use for traffic to discovery service.
  55. discovery-proxy:
  57. # DNS domain used to bootstrap initial cluster.
  58. discovery-srv:
  60. # Initial cluster configuration for bootstrapping.
  61. initial-cluster:
  63. # Initial cluster token for the etcd cluster during bootstrap.
  64. initial-cluster-token: 'etcd-cluster'
  66. # Initial cluster state ('new' or 'existing').
  67. initial-cluster-state: 'new'
  69. # Reject reconfiguration requests that would cause quorum loss.
  70. strict-reconfig-check: false
  72. # Accept etcd V2 client requests
  73. enable-v2: true
  75. # Enable runtime profiling data via HTTP server
  76. enable-pprof: true
  78. # Valid values include 'on', 'readonly', 'off'
  79. proxy: 'off'
  81. # Time (in milliseconds) an endpoint will be held in a failed state.
  82. proxy-failure-wait: 5000
  84. # Time (in milliseconds) of the endpoints refresh interval.
  85. proxy-refresh-interval: 30000
  87. # Time (in milliseconds) for a dial to timeout.
  88. proxy-dial-timeout: 1000
  90. # Time (in milliseconds) for a write to timeout.
  91. proxy-write-timeout: 5000
  93. # Time (in milliseconds) for a read to timeout.
  94. proxy-read-timeout: 0
  96. client-transport-security:
  97.   # Path to the client server TLS cert file.
  98.   cert-file:
  100.   # Path to the client server TLS key file.
  101.   key-file:
  103.   # Enable client cert authentication.
  104.   client-cert-auth: false
  106.   # Path to the client server TLS trusted CA cert file.
  107.   trusted-ca-file:
  109.   # Client TLS using generated certificates
  110.   auto-tls: false
  112. peer-transport-security:
  113.   # Path to the peer server TLS cert file.
  114.   cert-file:
  116.   # Path to the peer server TLS key file.
  117.   key-file:
  119.   # Enable peer client cert authentication.
  120.   client-cert-auth: false
  122.   # Path to the peer server TLS trusted CA cert file.
  123.   trusted-ca-file:
  125.   # Peer TLS using generated certificates.
  126.   auto-tls: false
  128. # Enable debug-level logging for etcd.
  129. debug: false
  131. logger: zap
  133. # Specify 'stdout' or 'stderr' to skip journald logging even when running under systemd.
  134. log-outputs: [stderr]
  136. # Force to create a new one member cluster.
  137. force-new-cluster: false
  139. auto-compaction-mode: periodic
  140. auto-compaction-retention: 1

启动

  1. cd /opt/zebra/etcd
  2. nohup ./etcd --config-file ./conf/etcd.conf.yml &