1.ETCD集群服务器：

（1）172.18.6.39

（2）172.18.6.40

（3）172.18.6.41

1.安装etcd

# yum -y install etcd

2.发布证书

cp -a /etc/kubernetes/ssl /etc/etcd/

3.添加配置文件

（1）节点[172.18.6.39]

# cat > /etc/etcd/etcd.conf <<EOF

#[Member]

#ETCD_CORS=""

ETCD_DATA_DIR="/opt/mfapps/etcd/data/default.etcd"

#ETCD_WAL_DIR=""

ETCD_LISTEN_PEER_URLS="https://0.0.0.0:2380"

ETCD_LISTEN_CLIENT_URLS="https://0.0.0.0:2379,https://0.0.0.0:4001"

#ETCD_MAX_SNAPSHOTS=""

#ETCD_MAX_WALS=""

ETCD_NAME="etcd01"

#ETCD_SNAPSHOT_COUNT=""

#ETCD_HEARTBEAT_INTERVAL=""

#ETCD_ELECTION_TIMEOUT=""

#ETCD_QUOTA_BACKEND_BYTES=""

#ETCD_MAX_REQUEST_BYTES=""

#ETCD_GRPC_KEEPALIVE_MIN_TIME="5s"

#ETCD_GRPC_KEEPALIVE_INTERVAL="2h0m0s"

#ETCD_GRPC_KEEPALIVE_TIMEOUT="20s"

#

[Clustering]

ETCD_INITIAL_ADVERTISE_PEER_URLS="https://0.0.0.0:2380"

ETCD_ADVERTISE_CLIENT_URLS="https://172.18.6.39:2379,https://172.18.6.39:4001"

#ETCD_DISCOVERY=""

#ETCD_DISCOVERY_FALLBACK="proxy"

#ETCD_DISCOVERY_PROXY=""

#ETCD_DISCOVERY_SRV=""

ETCD_INITIAL_CLUSTER="etcd01=https://172.18.6.39:2380,etcd02=https://172.18.6.40:2380,etcd03=https://172.18.6.41:2380"

ETCD_INITIAL_CLUSTER_TOKEN="etcd-cluster"

ETCD_INITIAL_CLUSTER_STATE="new"

#ETCD_STRICT_RECONFIG_CHECK="true"

#ETCD_ENABLE_V2="true"

#

#[Proxy]

#ETCD_PROXY="off"

#ETCD_PROXY_FAILURE_WAIT=""

#ETCD_PROXY_REFRESH_INTERVAL=""

#ETCD_PROXY_DIAL_TIMEOUT=""

#ETCD_PROXY_WRITE_TIMEOUT=""

#ETCD_PROXY_READ_TIMEOUT=""

#

[Security]

ETCD_CERT_FILE="/etc/etcd/ssl/server.pem"

ETCD_KEY_FILE="/etc/etcd/ssl/server-key.pem"

ETCD_CLIENT_CERT_AUTH="true"

ETCD_TRUSTED_CA_FILE="/etc/etcd/ssl/ca.pem"

ETCD_AUTO_TLS="true"

ETCD_PEER_CERT_FILE="/etc/etcd/ssl/server.pem"

ETCD_PEER_KEY_FILE="/etc/etcd/ssl/server-key.pem"

ETCD_PEER_CLIENT_CERT_AUTH="true"

ETCD_PEER_TRUSTED_CA_FILE="/etc/etcd/ssl/ca.pem"

ETCD_PEER_AUTO_TLS="true"

#

#[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=""

#

#[Profiling]

#ETCD_ENABLE_PPROF="false"

#ETCD_METRICS="basic"

#

#[Auth]

#ETCD_AUTH_TOKEN="simple"

EOF

（2）节点[172.18.6.40]

# cat > etcd.conf <<EOF

[Member]

#ETCD_CORS=""

ETCD_DATA_DIR="/opt/mfapps/etcd/data/default.etcd"

#ETCD_WAL_DIR=""

ETCD_LISTEN_PEER_URLS="https://0.0.0.0:2380"

ETCD_LISTEN_CLIENT_URLS="https://0.0.0.0:2379,https://0.0.0.0:4001"

#ETCD_MAX_SNAPSHOTS=""

#ETCD_MAX_WALS=""

ETCD_NAME="etcd02"

#ETCD_SNAPSHOT_COUNT=""

#ETCD_HEARTBEAT_INTERVAL=""

#ETCD_ELECTION_TIMEOUT=""

#ETCD_QUOTA_BACKEND_BYTES=""

#ETCD_MAX_REQUEST_BYTES=""

#ETCD_GRPC_KEEPALIVE_MIN_TIME="5s"

#ETCD_GRPC_KEEPALIVE_INTERVAL="2h0m0s"

#ETCD_GRPC_KEEPALIVE_TIMEOUT="20s"

#

[Clustering]

ETCD_INITIAL_ADVERTISE_PEER_URLS="https://0.0.0.0:2380"

ETCD_ADVERTISE_CLIENT_URLS="https://172.18.6.40:2379,https://172.18.6.40:4001"

#ETCD_DISCOVERY=""

#ETCD_DISCOVERY_FALLBACK="proxy"

#ETCD_DISCOVERY_PROXY=""

#ETCD_DISCOVERY_SRV=""

ETCD_INITIAL_CLUSTER="etcd01=https://172.18.6.39:2380,etcd02=https://172.18.6.40:2380,etcd03=https://172.18.6.41:2380"

ETCD_INITIAL_CLUSTER_TOKEN="etcd-cluster"

ETCD_INITIAL_CLUSTER_STATE="new"

#ETCD_STRICT_RECONFIG_CHECK="true"

#ETCD_ENABLE_V2="true"

#

#[Proxy]

#ETCD_PROXY="off"

#ETCD_PROXY_FAILURE_WAIT=""

#ETCD_PROXY_REFRESH_INTERVAL=""

#ETCD_PROXY_DIAL_TIMEOUT=""

#ETCD_PROXY_WRITE_TIMEOUT=""

#ETCD_PROXY_READ_TIMEOUT=""

#

[Security]

ETCD_CERT_FILE="/etc/etcd/ssl/server.pem"

ETCD_KEY_FILE="/etc/etcd/ssl/server-key.pem"

ETCD_CLIENT_CERT_AUTH="true"

ETCD_TRUSTED_CA_FILE="/etc/etcd/ssl/ca.pem"

ETCD_AUTO_TLS="true"

ETCD_PEER_CERT_FILE="/etc/etcd/ssl/server.pem"

ETCD_PEER_KEY_FILE="/etc/etcd/ssl/server-key.pem"

ETCD_PEER_CLIENT_CERT_AUTH="true"

ETCD_PEER_TRUSTED_CA_FILE="/etc/etcd/ssl/ca.pem"

ETCD_PEER_AUTO_TLS="true"

#

#[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=""

#

#[Profiling]

#ETCD_ENABLE_PPROF="false"

#ETCD_METRICS="basic"

#

#[Auth]

#ETCD_AUTH_TOKEN="simple"

EOF

（3）节点[172.18.6.41]

# cat > etcd.conf <<EOF

[Member]

ETCD_CORS=""

ETCD_DATA_DIR="/opt/mfapps/etcd/data/default.etcd"

#ETCD_WAL_DIR=""

ETCD_LISTEN_PEER_URLS="https://0.0.0.0:2380"

ETCD_LISTEN_CLIENT_URLS="https://0.0.0.0:2379,https://0.0.0.0:4001"

#ETCD_MAX_SNAPSHOTS=""

#ETCD_MAX_WALS=""

ETCD_NAME="etcd03"

#ETCD_SNAPSHOT_COUNT=""

#ETCD_HEARTBEAT_INTERVAL=""

#ETCD_ELECTION_TIMEOUT=""

#ETCD_QUOTA_BACKEND_BYTES=""

#ETCD_MAX_REQUEST_BYTES=""

#ETCD_GRPC_KEEPALIVE_MIN_TIME="5s"

#ETCD_GRPC_KEEPALIVE_INTERVAL="2h0m0s"

#ETCD_GRPC_KEEPALIVE_TIMEOUT="20s"

#

[Clustering]

ETCD_INITIAL_ADVERTISE_PEER_URLS="https://0.0.0.0:2380"

ETCD_ADVERTISE_CLIENT_URLS="https://172.18.6.41:2379,https://172.18.6.41:4001"

#ETCD_DISCOVERY=""

#ETCD_DISCOVERY_FALLBACK="proxy"

#ETCD_DISCOVERY_PROXY=""

#ETCD_DISCOVERY_SRV=""

ETCD_INITIAL_CLUSTER="etcd01=https://172.18.6.39:2380,etcd02=https://172.18.6.40:2380,etcd03=https://172.18.6.41:2380"

ETCD_INITIAL_CLUSTER_TOKEN="etcd-cluster"

ETCD_INITIAL_CLUSTER_STATE="new"

#ETCD_STRICT_RECONFIG_CHECK="true"

#ETCD_ENABLE_V2="true"

#

#[Proxy]

#ETCD_PROXY="off"

#ETCD_PROXY_FAILURE_WAIT=""

#ETCD_PROXY_REFRESH_INTERVAL=""

#ETCD_PROXY_DIAL_TIMEOUT=""

#ETCD_PROXY_WRITE_TIMEOUT=""

#ETCD_PROXY_READ_TIMEOUT=""

#

[Security]

ETCD_CERT_FILE="/etc/etcd/ssl/server.pem"

ETCD_KEY_FILE="/etc/etcd/ssl/server-key.pem"

ETCD_CLIENT_CERT_AUTH="true"

ETCD_TRUSTED_CA_FILE="/etc/etcd/ssl/ca.pem"

ETCD_AUTO_TLS="true"

ETCD_PEER_CERT_FILE="/etc/etcd/ssl/server.pem"

ETCD_PEER_KEY_FILE="/etc/etcd/ssl/server-key.pem"

ETCD_PEER_CLIENT_CERT_AUTH="true"

ETCD_PEER_TRUSTED_CA_FILE="/etc/etcd/ssl/ca.pem"

ETCD_PEER_AUTO_TLS="true"

#

#[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=""

#

#[Profiling]

#ETCD_ENABLE_PPROF="false"

#ETCD_METRICS="basic"

#

#[Auth]

#ETCD_AUTH_TOKEN="simple"

EOF

3.启动服务

# systemctl start etcd

# systemctl enable etcd

4.查看etcd集群状态

# etcdctl   --ca-file=/etc/etcd/ssl/ca.pem   --cert-file=/etc/etcd/ssl/server.pem   --key-file=/etc/etcd/ssl/server-key.pem   --endpoints=https://172.18.6.39:2379,https://172.18.6.40:2379,https://172.18.6.41:2379   cluster-health

member 166097e900c8cd52 is healthy: got healthy result from https://172.18.6.41:2379

member afe1cb78e6e4ef23 is healthy: got healthy result from https://172.18.6.40:2379

member e61819fce46c79f2 is healthy: got healthy result from https://172.18.6.39:2379

cluster is healthy

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