etcd install shell

k8s_install/etcd_install.sh

+#!/bin/bash
+# wget https://github.com/etcd-io/etcd/releases/download/v3.4.32/etcd-v3.4.32-linux-amd64.tar.gz
+# 设置全局变量
+DOWN_ETCD_URL='https://zzsn-doc.obs.cn-north-1.myhuaweicloud.com/martin/k8s/etcd-v3.4.32-linux-amd64.tar.gz'
+SOFTWARE_DIR=/zzsn/software
+INSTALL_DIR=/zzsn/etcd
+node1_ip="192.168.58.21"
+node2_ip="192.168.58.22"
+node3_ip="192.168.58.23"
+node_index=1
+# 下面参数引用时需要用${!local_ip}这种形式
+local_ip=node${node_index}_ip
+# 设置日志函数
+function log() {
+  echo "$(date +"%F %T")" "$*" >>/var/log/etcd_install.log
+}
+function install_etcd() {
+  log "start to install etcd ..."
+  # 验证文件夹
+  [ -d $SOFTWARE_DIR ] || mkdir -p $SOFTWARE_DIR
+  [ -d $INSTALL_DIR ] || mkdir -p $INSTALL_DIR
+  log "software dir is ${INSTALL_DIR},install dir is ${INSTALL_DIR}"
+  # 开始安装
+  cd $SOFTWARE_DIR || (echo "target software dir is not exist and exit ";exit 1)
+  log "start to download etcd files"
+  if wget $DOWN_ETCD_URL ;then
+    log "download etcd successfully";
+  else
+    log "download etcd failed and exit"
+    exit 1;
+  fi
+  tar -zxf etcd-v*.tar.gz
+  mkdir -p "$INSTALL_DIR"/{bin,cfg,ssl,data}
+  mv etcd-v*/{etcd,etcdctl}  ${INSTALL_DIR}/bin/
+  echo "PATH=$PATH:${INSTALL_DIR}/bin" >/etc/profile.d/etcd.sh
+  source /etc/profile
+  etcd_ver_info="$(etcd --version)"
+  log "etcd install finished,version info is ${etcd_ver_info}"
+}
+
+function del_etcd() {
+  rm -rf /etc/profile.d/etcd.sh
+  rm -rf ${INSTALL_DIR}*
+  source /etc/profile
+}
+function config_etcd() {
+  cat >${INSTALL_DIR}/cfg/etcd.conf<<EOF
+#[Member]
+ETCD_NAME="etcd-${node_index}"
+ETCD_DATA_DIR="${INSTALL_DIR}/data"
+ETCD_LISTEN_PEER_URLS="https://${!local_ip}:2380"
+ETCD_LISTEN_CLIENT_URLS="https://${!local_ip}:2379"
+#[Clustering]
+ETCD_INITIAL_ADVERTISE_PEER_URLS="https://${!local_ip}:2380"
+ETCD_ADVERTISE_CLIENT_URLS="https://${!local_ip}:2379"
+ETCD_INITIAL_CLUSTER="etcd-1=https://${node1_ip}:2380,etcd-2=https://${node2_ip}:2380,etcd-3=https://${node3_ip}:2380"
+ETCD_INITIAL_CLUSTER_TOKEN="etcd-cluster"
+ETCD_INITIAL_CLUSTER_STATE="new"
+#[Security]
+ETCD_CERT_FILE="${INSTALL_DIR}/ssl/etcd.pem"
+ETCD_KEY_FILE="${INSTALL_DIR}/ssl/etcd-key.pem"
+ETCD_CLIENT_CERT_AUTH="false"
+ETCD_TRUSTED_CA_FILE="${INSTALL_DIR}/ssl/ca.pem"
+ETCD_AUTO_TLS="false"
+ETCD_PEER_CERT_FILE="${INSTALL_DIR}/ssl/etcd.pem"
+ETCD_PEER_KEY_FILE="${INSTALL_DIR}/ssl/etcd-key.pem"
+ETCD_PEER_CLIENT_CERT_AUTH="false"
+ETCD_PEER_TRUSTED_CA_FILE="${INSTALL_DIR}/ssl/ca.pem"
+ETCD_PEER_AUTO_TLS="false"
+EOF
+
+cat > /usr/lib/systemd/system/etcd.service << EOF
+[Unit]
+Description=Etcd Server
+After=network.target
+After=network-online.target
+Wants=network-online.target
+[Service]
+Type=notify
+EnvironmentFile=${INSTALL_DIR}/cfg/etcd.conf
+ExecStart=${INSTALL_DIR}/bin/etcd --logger=zap
+Restart=on-failure
+RestartSec=5s
+LimitNOFILE=65536
+[Install]
+WantedBy=multi-user.target
+EOF
+  systemctl daemon-reload
+}
+
+function process_certs() {
+  pass
+}
+install_etcd
+#del_etcd
+#config_etcd