部署環境：
CentOS Linux release 7.2 64位
10.10.0.103 etcd master
10.10.0.49 etcd follower
master安裝過程：
# yum update
# yum install -y etcd
# [member] ETCD_NAME=etcd1 ETCD_DATA_DIR="/var/lib/etcd/default.etcd" #ETCD_WAL_DIR="" #ETCD_SNAPSHOT_COUNT="10000" ETCD_HEARTBEAT_INTERVAL="1000" ETCD_ELECTION_TIMEOUT="10000" ETCD_LISTEN_PEER_URLS="http://10.10.0.103:2380" ETCD_LISTEN_CLIENT_URLS="http://10.10.0.103:2379,http://127.0.0.1:2379" #ETCD_MAX_SNAPSHOTS="5" #ETCD_MAX_WALS="5" #ETCD_CORS="" # #[cluster] ETCD_INITIAL_ADVERTISE_PEER_URLS="http://10.10.0.103:2380" # if you use different ETCD_NAME (e.g. test), set ETCD_INITIAL_CLUSTER value for this name, i.e. "test=http://..." ETCD_INITIAL_CLUSTER="etcd1=http://10.10.0.103:2380,etcd2=http://10.10.0.49:2380" #ETCD_INITIAL_CLUSTER_STATE="new" ETCD_INITIAL_CLUSTER_TOKEN="etcd-cluster" ETCD_ADVERTISE_CLIENT_URLS="http://10.10.0.103:2379" #ETCD_DISCOVERY="" #ETCD_DISCOVERY_SRV="" #ETCD_DISCOVERY_FALLBACK="proxy" #ETCD_DISCOVERY_PROXY="" #ETCD_STRICT_RECONFIG_CHECK="false" #ETCD_AUTO_COMPACTION_RETENTION="0" # #[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" # examples for -log-package-levels etcdserver=WARNING,security=DEBUG #ETCD_LOG_PACKAGE_LEVELS="" # #[profiling] #ETCD_ENABLE_PPROF="false" #ETCD_METRICS="basic"
follower安裝過程：
# yum update
# yum install -y etcd
# [member] ETCD_NAME=etcd2 ETCD_DATA_DIR="/var/lib/etcd/default.etcd" #ETCD_WAL_DIR="" #ETCD_SNAPSHOT_COUNT="10000" ETCD_HEARTBEAT_INTERVAL="1000" ETCD_ELECTION_TIMEOUT="10000" ETCD_LISTEN_PEER_URLS="http://10.10.0.49:2380" ETCD_LISTEN_CLIENT_URLS="http://10.10.0.49:2379,http://127.0.0.1:2379" #ETCD_MAX_SNAPSHOTS="5" #ETCD_MAX_WALS="5" #ETCD_CORS="" # #[cluster] ETCD_INITIAL_ADVERTISE_PEER_URLS="http://10.10.0.49:2380" # if you use different ETCD_NAME (e.g. test), set ETCD_INITIAL_CLUSTER value for this name, i.e. "test=http://..." ETCD_INITIAL_CLUSTER="etcd1=http://10.10.0.103:2380,etcd2=http://10.10.0.49:2380" #ETCD_INITIAL_CLUSTER_STATE="new" ETCD_INITIAL_CLUSTER_TOKEN="etcd-cluster" ETCD_ADVERTISE_CLIENT_URLS="http://10.10.0.49:2379" #ETCD_DISCOVERY="" #ETCD_DISCOVERY_SRV="" #ETCD_DISCOVERY_FALLBACK="proxy" #ETCD_DISCOVERY_PROXY="" #ETCD_STRICT_RECONFIG_CHECK="false" #ETCD_AUTO_COMPACTION_RETENTION="0" # #[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" # examples for -log-package-levels etcdserver=WARNING,security=DEBUG #ETCD_LOG_PACKAGE_LEVELS="" # #[profiling] #ETCD_ENABLE_PPROF="false" #ETCD_METRICS="basic"
啓動master和follower節點上etcd服務：
# systemctl start etcd
查看成員列表：
# etcdctl member list
30e9662cfab160c5: name=etcd2 peerURLs=http://10.10.0.49:2380 clientURLs=http://10.10.0.49:2379 isLeader=true
cedb09f4a212df57: name=etcd1 peerURLs=http://10.10.0.103:2380 clientURLs=http://10.10.0.103:2379 isLeader=false
查看集羣狀態：
# etcdctl cluster-health
member 30e9662cfab160c5 is healthy: got healthy result from http://10.10.0.49:2379
member cedb09f4a212df57 is healthy: got healthy result from http://10.10.0.103:2379
cluster is healthy