二进制安装kubernetes(三) kube-controller-manager组件安装
Controller Manager简介
详细介绍请参考链接:Kubernetes组件之kube-controller-manager
Controller Manager作为集群内部的管理控制中心,负责集群内的Node、Pod副本、服务端点(Endpoint)、命名空间(Namespace)、服务账号(ServiceAccount)、资源定额(ResourceQuota)的管理,当某个Node意外宕机时,Controller Manager会及时发现并执行自动化修复流程,确保集群始终处于预期的工作状态。
每个Controller通过API Server提供的接口实时监控整个集群的每个资源对象的当前状态,当发生各种故障导致系统状态发生变化时,会尝试将系统状态修复到“期望状态”。
controller-manager安装在apiserver节点服务器上,hdss7-21,22:
编辑controller-manager启动脚本:
# vi /opt/kubernetes/server/bin/kube-controller-manager.sh
#!/bin/sh ./kube-controller-manager \ --cluster-cidr 172.7.0.0/16 \ --leader-elect true \ --log-dir /data/logs/kubernetes/kube-controller-manager \ --master http://127.0.0.1:8080 \ --service-account-private-key-file ./cert/ca-key.pem \ --service-cluster-ip-range 192.168.0.0/16 \ --root-ca-file ./cert/ca.pem \ --v 2
执行权限:
# chmod +x /opt/kubernetes/server/bin/kube-controller-manager.sh
创建日志存储目录:
# mkdir -p /data/logs/kubernetes/kube-controller-manager
编辑supervisord启动脚本:红色字体部分根据部署主机修改
# vi /etc/supervisord.d/kube-conntroller-manager.ini
[program:kube-controller-manager-7-21] command=/opt/kubernetes/server/bin/kube-controller-manager.sh ; the program (relative uses PATH, can take args) numprocs=1 ; number of processes copies to start (def 1) directory=/opt/kubernetes/server/bin ; directory to cwd to before exec (def no cwd) autostart=true ; start at supervisord start (default: true) autorestart=true ; retstart at unexpected quit (default: true) startsecs=30 ; number of secs prog must stay running (def. 1) startretries=3 ; max # of serial start failures (default 3) exitcodes=0,2 ; 'expected' exit codes for process (default 0,2) stopsignal=QUIT ; signal used to kill process (default TERM) stopwaitsecs=10 ; max num secs to wait b4 SIGKILL (default 10) user=root ; setuid to this UNIX account to run the program redirect_stderr=true ; redirect proc stderr to stdout (default false) stdout_logfile=/data/logs/kubernetes/kube-controller-manager/controller.stdout.log ; stderr log path, NONE for none; default AUTO stdout_logfile_maxbytes=64MB ; max # logfile bytes b4 rotation (default 50MB) stdout_logfile_backups=4 ; # of stdout logfile backups (default 10) stdout_capture_maxbytes=1MB ; number of bytes in 'capturemode' (default 0) stdout_events_enabled=false ; emit events on stdout writes (default false)
添加supervisord:
# supervisorctl update
检查状态:
# supervisorctl status
至此 controller manager已经部署完成,接下来部署kube-scheduler。