etcd
跳到导航
跳到搜索
此页面具有访问限制。如果您看见此消息,则说明您没有权限访问此页面。
etcd是一套提供给分散式系统用的Key-Value Store。
安装
在Ubuntu下可以直接安装,但要注意目前Ubuntu 22.04还是3.3版,预设会是v2 data,在3.4以后就会是v3 data,会有转移的成本:
sudo apt install -y etcd; sudo apt clean
另外一种方式是安装官方的binary:
cd /tmp; wget https://github.com/etcd-io/etcd/releases/download/v3.5.9/etcd-v3.5.9-linux-amd64.tar.gz; tar xvf etcd-v3.5.9-linux-amd64.tar.gz; cd etcd-v3.5.9-linux-amd64; sudo cp etcd etcdctl etcdutl /usr/bin
设定
如果是Ubuntu套件安装的可以先跳过这段,如果是透过binary安装的可以把systemd的设定放在/etc/systemd/system/etcd.service
下(这其实是从Ubuntu套件里捞出来的):
[Unit]
Description=etcd - highly-available key value store
Documentation=https://etcd.io/docs
Documentation=man:etcd
After=network.target
Wants=network-online.target
[Service]
Environment=DAEMON_ARGS=
Environment=ETCD_NAME=%H
Environment=ETCD_DATA_DIR=/var/lib/etcd/default
EnvironmentFile=-/etc/default/%p
Type=notify
User=etcd
PermissionsStartOnly=true
#ExecStart=/bin/sh -c "GOMAXPROCS=$(nproc) /usr/bin/etcd $DAEMON_ARGS"
ExecStart=/usr/bin/etcd $DAEMON_ARGS
Restart=on-abnormal
#RestartSec=10s
LimitNOFILE=65536
[Install]
WantedBy=multi-user.target
Alias=etcd2.service
另外建立/etc/default/etcd
(要记得改ETCD_INITIAL_ADVERTISE_PEER_URLS
、ETCD_LISTEN_PEER_URLS
与ETCD_NAME
):
#
ETCD_INITIAL_ADVERTISE_PEER_URLS="http://10.1.2.3:2380"
ETCD_INITIAL_CLUSTER="etcd-1-dev=http://10.1.2.3:2380,etcd-2-dev=http://10.1.2.4:2380,etcd-3-dev=http://10.1.2.5:2380"
ETCD_INITIAL_CLUSTER_STATE="new"
ETCD_LISTEN_PEER_URLS="http://10.1.2.3:2380"
ETCD_NAME="etcd-1-dev"
然后建立对应的使用者与群组,并且设定跑起来:
sudo groupadd -r etcd; sudo useradd -r -g etcd etcd; sudo mkdir /var/lib/etcd; sudo chown etcd:etcd /var/lib/etcd; sudo systemctl daemon-reload; sudo systemctl enable --now etcd