[etcd]
:https://github.com/etcd-io/etcd/releases
[Centos7 直接安装]
:yum -y install etcd
[配置 /etc/etcd/etcd.conf]
[root@localhost opt]# vim /etc/etcd/etcd.conf
#[Member]
#ETCD_CORS=""
ETCD_DATA_DIR="/var/lib/etcd/default.etcd" # 定义数据存放位置
#ETCD_WAL_DIR=""
#ETCD_LISTEN_PEER_URLS="http://localhost:2380" # 监听etcd实例的地址
ETCD_LISTEN_CLIENT_URLS="http://localhost:2379" # 监听客户端地址
#ETCD_MAX_SNAPSHOTS="5"
#ETCD_MAX_WALS="5"
ETCD_NAME="default"
#ETCD_SNAPSHOT_COUNT="100000"
#ETCD_HEARTBEAT_INTERVAL="100"
#ETCD_ELECTION_TIMEOUT="1000"
#ETCD_QUOTA_BACKEND_BYTES="0"
#ETCD_MAX_REQUEST_BYTES="1572864"
#ETCD_GRPC_KEEPALIVE_MIN_TIME="5s"
#ETCD_GRPC_KEEPALIVE_INTERVAL="2h0m0s"
#ETCD_GRPC_KEEPALIVE_TIMEOUT="20s"
#
#[Clustering]
#ETCD_INITIAL_ADVERTISE_PEER_URLS="http://localhost:2380" #通知其他etcd实例地址
ETCD_ADVERTISE_CLIENT_URLS="http://localhost:2379" # 通知客户端地址
#ETCD_DISCOVERY=""
#ETCD_DISCOVERY_FALLBACK="proxy"
#ETCD_DISCOVERY_PROXY=""
#ETCD_DISCOVERY_SRV=""
#ETCD_INITIAL_CLUSTER="default=http://localhost:2380" #定义etcd集群节点
#ETCD_INITIAL_CLUSTER_TOKEN="etcd-cluster" # 初始化集群token,token一致则可以进入同一集群
#ETCD_INITIAL_CLUSTER_STATE="new" # 初始化集群状态,new表示新建
#ETCD_STRICT_RECONFIG_CHECK="true"
#ETCD_ENABLE_V2="true"
#
#[Proxy]
#ETCD_PROXY="off"
#ETCD_PROXY_FAILURE_WAIT="5000"
#ETCD_PROXY_REFRESH_INTERVAL="30000"
#ETCD_PROXY_DIAL_TIMEOUT="1000"
#ETCD_PROXY_WRITE_TIMEOUT="5000"
#ETCD_PROXY_READ_TIMEOUT="0"
#
#[Security]
#ETCD_CERT_FILE=""
#ETCD_KEY_FILE=""
#ETCD_CLIENT_CERT_AUTH="false"
#ETCD_TRUSTED_CA_FILE=""
#ETCD_AUTO_TLS="false"
#ETCD_PEER_CERT_FILE=""
#ETCD_PEER_KEY_FILE=""
#ETCD_PEER_CLIENT_CERT_AUTH="false"
#ETCD_PEER_TRUSTED_CA_FILE=""
#ETCD_PEER_AUTO_TLS="false"
#
#[Logging]
#ETCD_DEBUG="false"
#ETCD_LOG_PACKAGE_LEVELS=""
#ETCD_LOG_OUTPUT="default"
#
#[Unsafe]
#ETCD_FORCE_NEW_CLUSTER="false"
#
#[Version]
#ETCD_VERSION="false"
#ETCD_AUTO_COMPACTION_RETENTION="0"
#
#[Profiling]
#ETCD_ENABLE_PPROF="false"
#ETCD_METRICS="basic"
#
#[Auth]
#ETCD_AUTH_TOKEN="simple"
//
ETCD_NAME=etcd-node1 #定义节点名称
ETCD_DATA_DIR="/var/lib/etcd/default.etcd" #定义数据存放位置
#[cluster]
ETCD_INITIAL_ADVERTISE_PEER_URLS=http://10.0.0.101:2380 #通知其他etcd实例地址
ETCD_INITIAL_CLUSTER="etcd-node1=http://10.0.0.101:2380,etcd-node2=http://10.0.0.2:2380,etcd-node3=http://10.0.0.3:2380" #定义etcd集群节点
ETCD_INITIAL_CLUSTER_STATE=new # 初始化集群状态,new表示新建
ETCD_INITIAL_CLUSTER_TOKEN=etcd-k8s-cluster # 初始化集群token,token一致则可以进入同一集群
ETCD_LISTEN_PEER_URLS=http://0.0.0.0:2380 # 监听etcd实例的地址
ETCD_ADVERTISE_CLIENT_URLS=http://10.0.0.101:2379 # 通知客户端地址
ETCD_LISTEN_CLIENT_URLS="http://0.0.0.0:2379" # 监听客户端地址
#[proxy]
ETCD_PROXY="off"
#[security]
[启动]
# systemctl daemon-reload
# systemctl enable etcd.service
# systemctl start etcd.service # 启动数据库
[检测]
# etcdctl cluster-health # 查询etcd集群健康状态
# etcdctl member list # 查询etcd集群成员
etcd数据库安装时要安装为奇数节点(与zookeeper类似),最少为3台,否则选举Leader会失败,启动其他节点时直接修改以上配置文件的本地ip为当前服务器ip即可
[解压安装,创建软链接]
:unzip etcd-v3.3.13-darwin-amd64.zip
:ln -sf /opt/etcd-v3.3.13-darwin-amd64/etcd /usr/bin/etcd
:ln -sf /opt/etcd-v3.3.13-darwin-amd64/etcdctl /usr/bin/etcdctl
[配置]
:mkdir /var/lib/etcd
:/usr/lib/systemd/system/etcd.service # 创建配置文件etcd.service
[Unit]
Description=Etcd Server
[Service]
Type=notify
TimeoutStartSec=0
Restart=always
WorkingDirectory=/var/lib/etcd/
EnvironmentFile=-/etc/etcd/etcd.conf
ExecStart=/usr/bin/etcd
[Install]
WantedBy=multi-user.target
# WorkingDirectory为etcd数据库目录,需要在etcd安装前创建
: /etc/etcd/etcd.conf # 创建配置文件etcd.conf
ETCD_NAME=ETCD Server
ETCD_DATA_DIR="/var/lib/etcd/"
ETCD_LISTEN_CLIENT_URLS="http://0.0.0.0:2379"
ETCD_ADVERTISE_CLIENT_URLS="http://10.0.209.151:2379"