centos下etcd集群安装

时间：2024-07-01 20:07:38

先仔细了解学习etcd

官方: https://github.com/etcd-io/etcd

https://www.cnblogs.com/softidea/p/6517959.html

https://www.cnblogs.com/skymyyang/p/9067280.html

安装etcd集群

yum -y install etcd

参考如下配置好etcd的集群ip

https://www.cnblogs.com/skymyyang/p/9067280.html

三个机器其实主要就是各自的监听IP不一样,ETCD_NAME也不一样:

最终的配置文件:

  • 节点1,181:
#[Member]

#ETCD_CORS=""

ETCD_DATA_DIR="/var/lib/etcd/default.etcd"

#ETCD_WAL_DIR=""

ETCD_LISTEN_PEER_URLS="http://192.168.201.181:2380"

ETCD_LISTEN_CLIENT_URLS="http://192.168.201.181:2379"

#ETCD_MAX_SNAPSHOTS="5"

#ETCD_MAX_WALS="5"

ETCD_NAME="etcd181"

#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://192.168.201.181:2380"

ETCD_ADVERTISE_CLIENT_URLS="http://192.168.201.181:2379,http://127.0.0.1:2379"

#ETCD_DISCOVERY=""

#ETCD_DISCOVERY_FALLBACK="proxy"

#ETCD_DISCOVERY_PROXY=""

#ETCD_DISCOVERY_SRV=""

ETCD_INITIAL_CLUSTER="etcd181=http://192.168.201.181:2380,etcd182=http://192.168.201.182:2380,etcd183=http://192.168.201.183:2380"

ETCD_INITIAL_CLUSTER_TOKEN="k8s-etcd-cluster"

ETCD_INITIAL_CLUSTER_STATE="new"

#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"
  • 节点2,182:
#[Member]

#ETCD_CORS=""

ETCD_DATA_DIR="/var/lib/etcd/default.etcd"

#ETCD_WAL_DIR=""

ETCD_LISTEN_PEER_URLS="http://192.168.201.182:2380"

ETCD_LISTEN_CLIENT_URLS="http://192.168.201.182:2379"

#ETCD_MAX_SNAPSHOTS="5"

#ETCD_MAX_WALS="5"

ETCD_NAME="etcd182"

#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://192.168.201.182:2380"

ETCD_ADVERTISE_CLIENT_URLS="http://192.168.201.182:2379,http://127.0.0.1:2379"

#ETCD_DISCOVERY=""

#ETCD_DISCOVERY_FALLBACK="proxy"

#ETCD_DISCOVERY_PROXY=""

#ETCD_DISCOVERY_SRV=""

ETCD_INITIAL_CLUSTER="etcd181=http://192.168.201.181:2380,etcd182=http://192.168.201.182:2380,etcd183=http://192.168.201.183:2380"

ETCD_INITIAL_CLUSTER_TOKEN="k8s-etcd-cluster"

ETCD_INITIAL_CLUSTER_STATE="new"

#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"
  • 节点3 183:
#[Member]

#ETCD_CORS=""

ETCD_DATA_DIR="/var/lib/etcd/default.etcd"

#ETCD_WAL_DIR=""

ETCD_LISTEN_PEER_URLS="http://192.168.201.183:2380"

ETCD_LISTEN_CLIENT_URLS="http://192.168.201.183:2379"

#ETCD_MAX_SNAPSHOTS="5"

#ETCD_MAX_WALS="5"

ETCD_NAME="etcd183"

#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://192.168.201.183:2380"

ETCD_ADVERTISE_CLIENT_URLS="http://192.168.201.183:2379,http://127.0.0.1:2379"

#ETCD_DISCOVERY=""

#ETCD_DISCOVERY_FALLBACK="proxy"

#ETCD_DISCOVERY_PROXY=""

#ETCD_DISCOVERY_SRV=""

ETCD_INITIAL_CLUSTER="etcd181=http://192.168.201.181:2380,etcd182=http://192.168.201.182:2380,etcd183=http://192.168.201.183:2380"

ETCD_INITIAL_CLUSTER_TOKEN="k8s-etcd-cluster"

ETCD_INITIAL_CLUSTER_STATE="new"

#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"

配置完后systemctl restart etcd启动三个节点

中途遇到异常,可以通过journalctl -xe查看系统日志的方式(记住时间),etcd会有错误提示

如果k8s的日志太多影响查看,可以先停掉

for SERVICES in etcd kube-apiserver kube-controller-manager kube-scheduler;

do

systemctl stop $SERVICES

systemctl enable $SERVICES

systemctl status $SERVICES

done

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