Ppc64le Centos7 installs CONFD and combines ETCD for high availability Haproxy

1.  to http://rpmfind.net/ Download the following 4 packages: Golang-1.6.2-1.fc24.ppc64le.rpmgolang-bin-1.6.2-1.fc24.ppc64le.rpmgolang-src-1.6.2-1.fc24.noarch.rpmgo-srpm-macro s-2-3.fc23.noarch.rpm2. yum -y install golang*.rpm3.  set the Gopath variable to   $HOME, namely: Export  gopath= $HOME 4.  Installation gb go get github.com/constabulary/gb/... 5.  Download  confd-0.11.0 tar.gz pack Cd confd-0.11.0./build && ./install6. cat  > /usr/lib/systemd/system/confd.service <<eof[unit]description=confdafter= haproxy.service[service]execstart=/usr/bin/confdrestart=always[install]wantedby=basic.targeteof7.  Create a configuration and template catalog mkdir -p /etc/confd/{conf.d,templates}8.  create CONFD's master configuration (global configuration) file, which is used to set some settings related to ETCD server. Configure the following:cat > /etc/confd/confd.toml <<eofconfdir =  "/ETC/CONFD" # Specifies the master configuration directory for CONFD interval = 20  #指定间隔多长时间与etcd同步更新backend  =  "Etcd" #指定后端的键值存储服务器的类型, such as: ETCD, Consul, zookeepernodes = [#指To list the backend nodes, you can have multiple          "http://172.16.0.204:4001"            #此地址为etcd服务器的地址]prefix =  "/"   #键的前缀是什么scheme  =  " HTTP "#指定后端的scheme, such as: HTTP, httpsverbose = trueeof9.  the configuration file for the specified application in/etc/confd/conf.d , Here is HAPROXY.TOML, configured as follows:cat > /etc/confd/confd.toml <<eof[template]src =  " Haproxy.cfg.tmpl "#定义配置文件的模板名称, this file is stored in/etc/confd/templatesdest = "/etc/haproxy/haproxy.cfg "# The profile path of the haproxy to be synchronized keys = ["/backend" #指定后端存放键值的目录]reload_cmd =  "/usr/bin/systemctl  Reload haproxy "#更新同步完配置文件后, reload the Haproxy service eof10.  generate Haproxy.cfg.tmpl template file: (slightly): frontend http-in    bind *:8080    acl homepage     path_reg    ^/$    acl status       path_beg    /haproxyadmin&nbSp;   redirect location   /hds/       if  homepage    use_backend         status       if status    default_backend      appbackend status    stats enable    stats  hide-version    stats uri     /haproxyadmin?stats     stats realm   haproxy\ statistics    stats  auth    admin:admin    stats admin if truebackend  app    balance source    option httpclose     option forwardfor    {{range gets  "/backend/*"}} #range表示循环, Gets represents the Get key value pair         server {{base . key}} {{. value}} check maxconn 1000#base . key  is similar to the Linux command basename;.value the value that corresponds to the key.     {{end}}11. systemctl enable /etc/systemd/system/confd.servicesystemctl  start /etc/systemd/system/confd.service Note: The backend ETCD server is configured as follows: curl http://172.16.0.204:4001/v2/keys/ Backend/app1 -xput -d value= ' 172.16.1.45:8080 ' curl http://172.16.0.204:4001/v2/keys/ Backend/app2 -xput -d value= ' 172.16.0.204:8080 '

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Ppc64le Centos7 installs CONFD and combines ETCD for high availability Haproxy