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云野阁

云野阁

闲云野鹤,八方逍遥

高可用容器云建设(k8s集群+ceph集群)

任务目标#

  1. 完成高可用 k8s 集群安装部署

任务平台#

  1. 物理设备 --
  2. 操作系统:openEuler 22.03 LTS SP2

部署指南#

集群拓扑图

image-20240323222825713-1711204108611-3

一:部署 ceph 集群#

任务一:配置准备#

  1. 重命名 hostname
# 将10.10.1.80的主机名改为future-k8s-master0
hostnamectl set-hostname future-k8s-master0 && bash
# 将10.10.1.81的主机名改为future-k8s-master1
hostnamectl set-hostname future-k8s-master1 && bash
# 将10.10.1.82的主机名改为future-k8s-master2
hostnamectl set-hostname future-k8s-master2 && bash
# 将10.10.1.16的主机名改为k8s-ceph-node0
hostnamectl set-hostname k8s-ceph-node0 && bash
# 将10.10.1.17的主机名改为k8s-ceph-node1
hostnamectl set-hostname k8s-ceph-node1 && bash
# 将10.10.1.18的主机名改为k8s-ceph-node2
hostnamectl set-hostname k8s-ceph-node2 && bash
# 将10.10.1.15的主机名改为k8s-ceph-node2
hostnamectl set-hostname k8s-ceph-node3 && bash
  1. 安装前的配置修改
# 关闭防火墙
systemctl stop firewalld
systemctl disable firewalld
firewall-cmd --state
 
# selinux永久关闭
setenforce 0
 sed -i 's/^SELINUX=enforcing$/SELINUX=permissive/' /etc/selinux/config
cat /etc/selinux/config

# swap永久关闭
swapoff --all
swapoff -a
sed -ri 's/.*swap.*/#&/' /etc/fstab
cat /etc/fstab

# 添加hosts
cat >> /etc/hosts << EOF
10.10.1.80 future-k8s-master0
10.10.1.81 future-k8s-master1
10.10.1.82 future-k8s-master2
10.10.1.16 k8s-ceph-node0
10.10.1.17 k8s-ceph-node1
10.10.1.18 k8s-ceph-node2
10.10.1.15 k8s-ceph-node3
10.10.1.83 future-k8s-vip
EOF
#查看
cat /etc/hosts


# 添加网桥过滤及内核转发配置文件
cat > /etc/sysctl.d/k8s.conf << EOF
 net.bridge.bridge-nf-call-ip6tables = 1
 net.bridge.bridge-nf-call-iptables = 1
 net.ipv4.ip_forward = 1
EOF
# 查看
cat /etc/sysctl.d/k8s.conf
# 加载br_netfilter模块
modprobe br_netfilter
# 查看是否加载
lsmod | grep br_netfilter
# 加载网桥过滤及内核转发配置文件
sysctl -p /etc/sysctl.d/k8s.conf

#同步时间
yum install ntp -y
systemctl start ntpd
systemctl enable ntpd
yum install chrony  -y
systemctl start chronyd
systemctl enable chronyd
#修改配置,添加内容
echo "
server 10.10.3.70 iburst
allow 10.10.3.0/24
allow 10.10.1.0/24
" >> /etc/chrony.conf
timedatectl set-ntp true
systemctl restart chronyd
timedatectl status
date
  1. 安装 ipset 及 ipvsadm
 # 安装ipset及ipvsadm
 yum -y install ipset ipvsadm
 配置ipvsadm模块加载方式
 # 添加需要加载的模块
echo ' #!/bin/bash
 modprobe -- ip_vs
 modprobe -- ip_vs_rr
 modprobe -- ip_vs_wrr
 modprobe -- ip_vs_sh
 modprobe -- nf_conntrack
' > /etc/sysconfig/modules/ipvs.modules
#查看
cat /etc/sysconfig/modules/ipvs.modules
 # 授权、运行、检查是否加载
chmod 755 /etc/sysconfig/modules/ipvs.modules 
bash /etc/sysconfig/modules/ipvs.modules 
lsmod | grep -e ip_vs -e nf_conntrack

#重启
reboot

配置准备完成后,所有节点都需重启

任务二:配置 python 环境#

下载 python2

  1. 安装zlib库,不然安装 pip 时会报错(还要重新编译 python)
 yum -y install zlib*
  1. 安装 GCC 包,如果没有安装 GCC,请使用以下命令进行安装
yum -y install gcc openssl-devel bzip2-devel
  1. 下载 Python-2.7.18
 cd /usr/src
 yum -y install wget tar
 wget https://www.python.org/ftp/python/2.7.18/Python-2.7.18.tgz
 tar xzf Python-2.7.18.tgz
  1. 在编译之前还需要在安装源文件中修改 Modules/Setup.dist 文件,将注释去掉
sed -i 's/#zlib zlibmodule.c -I$(prefix)/zlib zlibmodule.c -I$(prefix)/'  Python-2.7.18/Modules/Setup.dist
  1. 编译 Python-2.7.18(make altinstall用于防止替换默认的 python 二进制文件 /usr/bin/python)
cd /usr/src/Python-2.7.18
./configure --enable-optimizations
yum install -y make
make altinstall

不要覆盖或链接原始的 Python 二进制文件,这可能会损坏系统

  1. 设置环境变量
echo "
export PYTHON_HOME=/usr/local/
PATH=\$PATH:\$PYTHON_HOME/bin
" >> /etc/profile
cat /etc/profile
source /etc/profile
  1. 方法一:
curl "https://bootstrap.pypa.io/pip/2.7/get-pip.py" -o "get-pip.py"
python2.7 get-pip.py 

下载 ceph

#k8s-ceph-node0下载
#方法一:使用pip下载
pip2 install ceph-deploy
yum install -y ceph ceph-radosgw
#其他节点下载
yum install -y ceph ceph-radosgw
#检查安装包是否完整
rpm -qa |egrep -i "ceph|rados|rbd"

任务三:部署 ceph 集群#

  1. admin 节点#

  2. 部署 Monitor#
  3. 创建配置文件目录,并创建配置文件

mkdir /etc/ceph/
touch /etc/ceph/ceph.conf
  1. 为集群生成一个 FSDI:
uuidgen
30912204-0c26-413f-8e00-6d55c9c0af03
  1. 集群创建一个钥匙串,为 Monitor 服务创建一个密钥:
ceph-authtool --create-keyring /tmp/ceph.mon.keyring --gen-key -n mon. --cap mon 'allow *'
  1. 创建一个管理员钥匙串,生成一个 client.admin 用户,并将此用户添加到钥匙串中:
ceph-authtool --create-keyring /etc/ceph/ceph.client.admin.keyring --gen-key -n client.admin --cap mon 'allow *' --cap osd 'allow *' --cap mds 'allow *' --cap mgr 'allow *'
  1. 创建 bootstrap-osd 钥匙串,将 client.bootstrap-osd 用户添加到此钥匙串中:
ceph-authtool --create-keyring /var/lib/ceph/bootstrap-osd/ceph.keyring --gen-key -n client.bootstrap-osd --cap mon 'profile bootstrap-osd'
  1. 将生成的 key 加入 ceph.mon.keyring.
ceph-authtool /tmp/ceph.mon.keyring --import-keyring /etc/ceph/ceph.client.admin.keyring

ceph-authtool /tmp/ceph.mon.keyring --import-keyring /var/lib/ceph/bootstrap-osd/ceph.keyring
  1. 使用主机名和 IP 地址以及 FSID 生成 monitor map:
monmaptool --create --add k8s-ceph-node0 10.10.1.16 --fsid 30912204-0c26-413f-8e00-6d55c9c0af03 /tmp/monmap
  1. 创建 mon 的目录,使用 集群名称-主机名的形式:
 mkdir  /var/lib/ceph/mon/ceph-k8s-ceph-node0
  1. 填入第一个 mon 守护进程的信息:
ceph-mon --mkfs -i k8s-ceph-node0 --monmap /tmp/monmap --keyring /tmp/ceph.mon.keyring
  1. 配置 /etc/ceph/ceph.conf 文件:
cat /etc/ceph/ceph.conf
################################################
[global]
fsid = 30912204-0c26-413f-8e00-6d55c9c0af03     # 生成的FSID
mon initial members =k8s-ceph-node0
mon host = 10.10.1.16
public network = 10.10.1.0/24
auth cluster required = cephx
auth service required = cephx
auth client required = cephx
osd journal size = 1024
osd pool default size = 3
osd pool default min size = 2
osd pool default pg num = 333
osd pool default pgp num = 333
osd crush chooseleaf type = 1

################################################
  1. 由于我们使用使用 root 操作的,需要设置权限为 ceph(也可以修改 systemd 的启动文件,将 ceph 用户改为 root),并启动 Monitor
chown  -R ceph:ceph /var/lib/ceph
systemctl start [email protected]
systemctl enable [email protected]
  1. 确认服务已经正常启动:
ceph -s
yum install -y net-tools
netstat -lntp|grep ceph-mon
  1. 部署 Manager#

当我们配置好 ceph-mon 服务之后,就需要配置 ceph-mgr 服务。

  1. 生成一个认证密钥 (ceph-mgr 为自定义的名称):
#10.10.1.16
ceph auth get-or-create mgr.ceph-mgr mon 'allow profile mgr' osd 'allow *' mds 'allow *'
[mgr.ceph-mgr]
        key = AQANDD9lfWg2LBAAHY0mprdbuKFBPJDkE7/I5Q==
        
#10.10.1.17
ceph auth get-or-create mgr.ceph-mgr1 mon 'allow profile mgr' osd 'allow *' mds 'allow *'
[mgr.ceph-mgr1]
        key = AQDbRTZlgjXWBBAAGew4Xta+t9vgIWPCWC8EVg==
  1. 创建存放此密钥的文件的目录
#10.10.1.16
sudo -u ceph mkdir /var/lib/ceph/mgr/ceph-ceph-mgr
#将产生的密钥文件存入此目录下,并命名为keyring
vi /var/lib/ceph/mgr/ceph-ceph-mgr/keyring 
[mgr.ceph-mgr]
        key = AQANDD9lfWg2LBAAHY0mprdbuKFBPJDkE7/I5Q==
        
#10.10.1.17
sudo -u ceph mkdir /var/lib/ceph/mgr/ceph-ceph-mgr1
#将产生的密钥文件存入此目录下,并命名为keyring
vi /var/lib/ceph/mgr/ceph-ceph-mgr1/keyring 
[mgr.ceph-mgr1]
        key = AQDbRTZlgjXWBBAAGew4Xta+t9vgIWPCWC8EVg==
  1. 启动 ceph-mgr 服务
ceph-mgr -i ceph-mgr
ceph-mgr -i ceph-mgr1
systemctl enable ceph-mgr@k8s-ceph-node0
systemctl enable ceph-mgr@k8s-ceph-node1
#检查服务是否启动,查看ceph状态
ceph -s
#查看当前mgr中可用的模块
ceph mgr module ls
  1. 创建 OSD#
ceph-volume lvm create --data /dev/sda8
#查看当前的lvm逻辑卷
ceph-volume lvm list
#查看ceph状态
ceph -s
  1. 安装配置 Ceph-dashboard#
  2. 开启 dashboard 功能

ceph mgr module enable dashboard
  1. 创建证书
ceph dashboard create-self-signed-cert
  1. 配置 web 登录的用户名和密码
 #创建/etc/ceph/dashboard.key,并将密码写入
 echo "qishi#09319" >/etc/ceph/dashboard.key
 ceph dashboard ac-user-create k8s administrator -i /etc/ceph/dashboard.key
  1. 修改 dashboard 默认端口 (可选)

配置端口,默认端口是 8443,修改为 18443,修改后需重启 mgr,修改端口才生效。

ceph config set mgr mgr/dashboard/server_port 18443
systemctl restart ceph-mgr.target
  1. 查看发布服务地址并登录
ceph mgr services

{

​ "dashboard": "https://k8s-ceph-node0:8443/"

}

image-20240323222910679-1711204151978-5

  1. node 节点#

  2. 扩展 Monitor#
  3. 修改 master 节点上的配置

vi /etc/ceph/ceph.conf
[global]
fsid = 30912204-0c26-413f-8e00-6d55c9c0af03     # 生成的FSID
mon initial members =k8s-ceph-node0,k8s-ceph-node1,k8s-ceph-node2,k8s-ceph-node3            # 主机名
mon host = 10.10.1.16,10.10.1.17,10.10.1.18,10.10.1.15                       # 对应的IP
public network = 10.10.1.0/24
auth cluster required = cephx
auth service required = cephx
auth client required = cephx
osd journal size = 1024
osd pool default size = 3
osd pool default min size = 2
osd pool default pg num = 333
osd pool default pgp num = 333
osd crush chooseleaf type = 1
[mon]
mon allow pool delete = true

[mds.k8s-ceph-node0]
host = k8s-ceph-node0
  1. 将配置和密钥文件分发到其它的节点上(master 节点)
#生成公钥,复制到node节点主机上
ssh-keygen -t rsa
ssh-copy-id 10.10.1.17
ssh-copy-id 10.10.1.18
ssh-copy-id 10.10.1.15
#复制认证密钥
scp /etc/ceph/*  10.10.1.17:/etc/ceph/
scp /etc/ceph/*  10.10.1.18:/etc/ceph/
scp /etc/ceph/*  10.10.1.15:/etc/ceph/
  1. 在 node 节点创建 ceph 相关目录,并添加权限:
mkdir -p  /var/lib/ceph/{bootstrap-mds,bootstrap-mgr,bootstrap-osd,bootstrap-rbd,bootstrap-rgw,mds,mgr,mon,osd}
chown  -R ceph:ceph /var/lib/ceph

sudo -u ceph mkdir /var/lib/ceph/mon/ceph-k8s-ceph-node1
sudo -u ceph mkdir /var/lib/ceph/mon/ceph-k8s-ceph-node2
  1. 修改 node 节点的配置文件,以 node1 为例(其他节点相似)
[global]
fsid = 30912204-0c26-413f-8e00-6d55c9c0af03     # 生成的FSID
mon initial members =k8s-ceph-node0,k8s-ceph-node1,k8s-ceph-node2,k8s-ceph-node3           # 主机名
mon host = 10.10.1.16,10.10.1.17,10.10.1.18,10.10.1.15                       # 对应的IP
public network = 10.10.1.0/24
auth cluster required = cephx
auth service required = cephx
auth client required = cephx
osd journal size = 1024
osd pool default size = 3
osd pool default min size = 2
osd pool default pg num = 333
osd pool default pgp num = 333
osd crush chooseleaf type = 1
[mon]
mon allow pool delete = true

[mon.k8s-ceph-node1]
mon_addr = 10.10.1.17:6789
host = k8s-ceph-node1
  1. 获取集群中的密钥和 map, 以 node1 为例(其他节点相似)
ceph auth get mon. -o /tmp/monkeyring
ceph mon getmap -o /tmp/monmap
  1. 使用已有的密钥和 map 添加一个新的 Monitor, 指定主机名,以 node1 为例(其他节点相似)
sudo -u ceph ceph-mon --mkfs -i k8s-ceph-node1 --monmap /tmp/monmap --keyring /tmp/monkeyring
  1. 启动服务,以 node1 为例(其他节点相似)
systemctl start ceph-mon@k8s-ceph-node1
systemctl enable ceph-mon@k8s-ceph-node1
#查看mon状态
ceph -s
ceph mon stat
  1. 添加 OSD#

从已经存在的 osd 的 master 节点上拷贝初始化的密钥文件

scp -p  /var/lib/ceph/bootstrap-osd/ceph.keyring  10.10.1.17:/var/lib/ceph/bootstrap-osd/
scp -p  /var/lib/ceph/bootstrap-osd/ceph.keyring  10.10.1.18:/var/lib/ceph/bootstrap-osd/
scp -p  /var/lib/ceph/bootstrap-osd/ceph.keyring  10.10.1.15:/var/lib/ceph/bootstrap-osd/

在 node 节点添加 osd

ceph-volume lvm create --data /dev/sdb

systemctl enable ceph-osd@k8s-ceph-node1
#查看状态
ceph -s
  1. 添加 Mds(以 node0 为例)#

#创建目录
sudo -u ceph mkdir -p /var/lib/ceph/mds/ceph-k8s-ceph-node0
#创建密钥
ceph-authtool --create-keyring /var/lib/ceph/mds/ceph-k8s-ceph-node0/keyring --gen-key -n mds.k8s-ceph-node0
#导入密钥,并设置caps
ceph auth add mds.k8s-ceph-node0 osd "allow rwx" mds "allow" mon "allow profile mds" -i /var/lib/ceph/mds/ceph-k8s-ceph-node0/keyring
#手动启动服务
ceph-mds --cluster ceph -i k8s-ceph-node0 -m k8s-ceph-node0:6789
 chown -R ceph:ceph /var/lib/ceph/mds/
 systemctl start ceph-mds@k8s-ceph-node0
 systemctl enable ceph-mds@k8s-ceph-node0
 #检查服务是否启动
 ps -ef|grep ceph-mds
 #检查ceph 集群状态
 ceph -s
  1. 创建 CephFS#

创建 pools

#存储数据
ceph osd pool create cephfs_data 64
#存储元数据
ceph osd pool create cephfs_metadata 64
#启用cephfs文件系统
ceph fs new cephfs cephfs_metadata cephfs_data
#查看文件系统状态
ceph fs ls
ceph mds stat
  1. 创建 rbd 池#

#创建rbd池
ceph osd pool create rbd-k8s 64 64
#启用 
ceph osd pool application enable rbd-k8s rbd
#初始化
rbd pool init rbd-k8s
#查看
ceph osd lspools

二:部署高可用 k8s 集群#

任务一:配置准备(与 ceph 集群一样)#

任务二:安装 docker#

  1. 配置 Docker CE 的 yum 存储库。打开docker-ce.repo的文件,并将以下内容复制到文件中:
echo '
[docker-ce-stable]
name=Docker CE Stable - $basearch
baseurl=https://download.docker.com/linux/centos/7/$basearch/stable
enabled=1
gpgcheck=1
gpgkey=https://download.docker.com/linux/centos/gpg ' > /etc/yum.repos.d/docker-ce.repo

保存并退出文件。

  1. 安装 Docker CE。运行以下命令来安装 Docker CE:
 yum -y install docker-ce docker-ce-cli  containerd.io
#启动docker并设置开机自启
systemctl start docker  
systemctl enable docker
#查看版本
docker -v
docker compose version
  1. Docker 配置修改,设置 cgroup 驱动,使用 systemd,配置修改为如下。
#将配置写入daemon.json文件
echo '{
  "exec-opts": ["native.cgroupdriver=systemd"],
  "data-root": "/data/docker"
} ' > /etc/docker/daemon.json
#查看
cat /etc/docker/daemon.json
systemctl daemon-reload
systemctl restart docker
docker info
  1. 创建所需目录
cd /data
mkdir  cri-dockerd calico    dashboard   metrics-server  script  ingress-nginx

任务三:安装 cri-dockerd (k8s 1.24 及以上版本)#

cd /data/cri-dockerd
# 下载cri-dockerd安装包
wget https://github.com/Mirantis/cri-dockerd/releases/download/v0.3.4/cri-dockerd-0.3.4-3.el8.x86_64.rpm
# 安装cri-dockerd
rpm -ivh cri-dockerd-0.3.4-3.el8.x86_64.rpm
docker pull registry.aliyuncs.com/google_containers/pause:3.9
# 修改镜像地址为国内,否则kubelet拉取不了镜像导致启动失败
sed -i.bak 's|ExecStart=.*$|ExecStart=/usr/bin/cri-dockerd --container-runtime-endpoint fd:// --pod-infra-container-image=registry.aliyuncs.com/google_containers/pause:3.9|g' /usr/lib/systemd/system/cri-docker.service
cat /usr/lib/systemd/system/cri-docker.service
# 启动cri-dockerd
systemctl daemon-reload 
systemctl start cri-docker.service
systemctl enable cri-docker.service

任务四:安装高可用组件#

部署高可用集群需要安装 **keepalived 和 haproxy,实现master节点高可用,**在各 master 节点操作

  1. 安装 keepalived 与 haproxy
yum install keepalived haproxy -y
  1. 备份 keepalived 与 haproxy 配置文件
cp /etc/keepalived/keepalived.conf /etc/keepalived/keepalived.conf.bak
cp /etc/haproxy/haproxy.cfg /etc/haproxy/haproxy.cfg.bak
  1. 修改各 master 节点的/etc/keepalived/keepalived.conf文件
    1. future-k8s-master0

    2. echo '
      global_defs {
         router_id k8s
      }
      
      vrrp_script check_haproxy {
          script "killall -0 haproxy"
          interval 3
          weight -2
          fall 10
          rise 2
      }
      
      vrrp_instance VI_1 {
          state MASTER  #主节点 则为MASTER ,其他则为 BACKUP
          interface ens192  #网卡名称
          virtual_router_id 51
          priority 250   #优先级
          nopreempt   #设置非抢占模式
          advert_int 1
          authentication {
              auth_type PASS
              auth_pass ceb1b3ec013d66163d6ab
          }
          virtual_ipaddress {
              10.10.1.83/24   #虚拟ip
          }
          track_script {
              check_haproxy
          }
      }    
      ' > /etc/keepalived/keepalived.conf
      cat /etc/keepalived/keepalived.conf
      
    3. future-k8s-master1

    4. echo '
      global_defs {
         router_id k8s
      }
      
      vrrp_script check_haproxy {
          script "killall -0 haproxy"
          interval 3
          weight -2
          fall 10
          rise 2
      }
      
      vrrp_instance VI_1 {
          state BACKUP  #主节点 则为MASTER ,其他则为 BACKUP
          interface ens192  #网卡名称
          virtual_router_id 51
          priority 200   #优先级
          nopreempt   #设置非抢占模式
          advert_int 1
          authentication {
              auth_type PASS
              auth_pass ceb1b3ec013d66163d6ab
          }
          virtual_ipaddress {
              10.10.1.83/24   #虚拟ip
          }
          track_script {
              check_haproxy
          }
      }    
      ' > /etc/keepalived/keepalived.conf
      cat  /etc/keepalived/keepalived.conf
      
    5. future-k8s-master2

    6. echo '
      global_defs {
         router_id k8s
      }
      
      vrrp_script check_haproxy {
          script "killall -0 haproxy"
          interval 3
          weight -2
          fall 10
          rise 2
      }
      
      vrrp_instance VI_1 {
          state BACKUP  #主节点 则为MASTER ,其他则为 BACKUP
          interface ens192  #网卡名称
          virtual_router_id 51
          priority 150   #优先级
          nopreempt   #设置非抢占模式
          advert_int 1
          authentication {
              auth_type PASS
              auth_pass ceb1b3ec013d66163d6ab
          }
          virtual_ipaddress {
              10.10.1.83/24   #虚拟ip
          }
          track_script {
              check_haproxy
          }
      }    
      ' > /etc/keepalived/keepalived.conf
      cat  /etc/keepalived/keepalived.conf
      
  2. 修改各 master 节点的/etc/haproxy/haproxy.cfg文件,(三个 master 节点的配置文件相同)
echo "
#---------------------------------------------------------------------
# Global settings
#---------------------------------------------------------------------
global
    # to have these messages end up in /var/log/haproxy.log you will
    # need to:
    # 1) configure syslog to accept network log events.  This is done
    #    by adding the '-r' option to the SYSLOGD_OPTIONS in
    #    /etc/sysconfig/syslog
    # 2) configure local2 events to go to the /var/log/haproxy.log
    #   file. A line like the following can be added to
    #   /etc/sysconfig/syslog
    #
    #    local2.*                       /var/log/haproxy.log
    #
    log         127.0.0.1 local2

    chroot      /var/lib/haproxy
    pidfile     /var/run/haproxy.pid
    maxconn     4000
    user        haproxy
    group       haproxy
    daemon

    # turn on stats unix socket
    stats socket /var/lib/haproxy/stats
#---------------------------------------------------------------------
# common defaults that all the 'listen' and 'backend' sections will
# use if not designated in their block
#---------------------------------------------------------------------
defaults
    mode                    http
    log                     global
    option                  httplog
    option                  dontlognull
    option http-server-close
    option forwardfor       except 127.0.0.0/8
    option                  redispatch
    retries                 3
    timeout http-request    10s
    timeout queue           1m
    timeout connect         10s
    timeout client          1m
    timeout server          1m
    timeout http-keep-alive 10s
    timeout check           10s
    maxconn                 3000
#---------------------------------------------------------------------
# kubernetes apiserver frontend which proxys to the backends
#---------------------------------------------------------------------
frontend kubernetes-apiserver
    mode                 tcp
    bind                 *:16443 #高可用监控端口,初始化k8s集群时会用
    option               tcplog
    default_backend      kubernetes-apiserver
#---------------------------------------------------------------------
# round robin balancing between the various backends
#---------------------------------------------------------------------
backend kubernetes-apiserver
    mode        tcp
    balance     roundrobin
    server      future-k8s-master0   10.10.1.80:6443 check
    server      future-k8s-master1   10.10.1.81:6443 check
    server      future-k8s-master2   10.10.1.82:6443 check

#---------------------------------------------------------------------
# collection haproxy statistics message
#---------------------------------------------------------------------
listen stats
    bind                 *:1080
    stats auth           admin:awesomePassword
    stats refresh        5s
    stats realm          HAProxy\ Statistics
    stats uri            /admin?stats

" > /etc/haproxy/haproxy.cfg

cat /etc/haproxy/haproxy.cfg
  1. 启动(各 master 节点按顺序启动)
#启动keepalived  
systemctl enable keepalived  && systemctl start keepalived  
#启动haproxy 
systemctl enable haproxy && systemctl start haproxy
systemctl status keepalived
systemctl status haproxy
  1. 在 future-k8s-master0 查看绑定的 vip 地址

ip add 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: ens192: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000 link/ether 00:50:56:9a:eb:48 brd ff:ff:ff:ff:ff inet 10.10.1.80/24 brd 10.10.3.255 scope global noprefixroute ens192 valid_lft forever preferred_lft forever inet 10.10.1.83/24 scope global ens192 valid_lft forever preferred_lft forever inet6 fe80::250:56ff:fe9a/64 scope link noprefixroute valid_lft forever preferred_lft forever

任务五:部署 k8s 集群#

  1. 添加 yum 软件源#

cat > /etc/yum.repos.d/kubernetes.repo << EOF
[kubernetes]
name=Kubernetes
baseurl=https://mirrors.aliyun.com/kubernetes/yum/repos/kubernetes-el7-x86_64
enabled=1
gpgcheck=0
repo_gpgcheck=0
gpgkey=https://mirrors.aliyun.com/kubernetes/yum/doc/yum-key.gpg https://mirrors.aliyun.com/kubernetes/yum/doc/rpm-package-key.gpg
EOF
  1. 安装 kubeadm,kubelet 和 kubectl#

# 安装kubelet、kubeadm、kubectl
yum install -y kubelet-1.28.0 kubeadm-1.28.0 kubectl-1.28.0 --disableexcludes=kubernetes

#将cgroup改为systemd
echo 'KUBELET_EXTRA_ARGS="--cgroup-driver=systemd"' > /etc/sysconfig/kubelet
# 查看
cat /etc/sysconfig/kubelet
# 设置开机启动
systemctl start kubelet.service
systemctl enable kubelet.service

#查看版本
 kubeadm version
 kubelet --version
 kubectl version 
  1. 初始化 k8s 集群(future-k8s-master0 节点)#

    方式一:使用配置文件初始化#
    1. 导出默认配置文件 (可选)
    kubeadm config print init-defaults > kubeadm-config.yaml
    
    1. 配置文件
    echo '
    apiVersion: kubeadm.k8s.io/v1beta3
    kind: InitConfiguration
    localAPIEndpoint:
      advertiseAddress: 10.10.1.83  #虚拟ip
      bindPort: 6443
    nodeRegistration:
      criSocket: unix:///var/run/cri-dockerd.sock
    ---
    apiServer:
      certSANs:    #master节点与对应主机名
        - future-k8s-master0
        - future-k8s-master1
        - future-k8s-master2
        - future-k8s-vip
        - 10.10.1.80
        - 10.10.1.81
        - 10.10.1.82
        - 10.10.1.83
        - 127.0.0.1
      timeoutForControlPlane: 4m0s
    apiVersion: kubeadm.k8s.io/v1beta3
    certificatesDir: /etc/kubernetes/pki
    clusterName: kubernetes
    controlPlaneEndpoint: "future-k8s-vip:16443" #虚拟ip及高可用配置的端口号
    controllerManager: {}
    dns: {}
    etcd:
      local:
        dataDir: /var/lib/etcd
    imageRepository: registry.aliyuncs.com/google_containers
    kind: ClusterConfiguration
    kubernetesVersion: 1.28.0
    networking:
      dnsDomain: cluster.local
      podSubnet: 10.244.0.0/16
      serviceSubnet: 10.96.0.0/12
    scheduler: {}
    ' > /data/script/kubeadm-config.yaml
    cat /data/script/kubeadm-config.yaml
    
    1. 集群初始化
    kubeadm init --config kubeadm-config.yaml --upload-certs
    
    mkdir -p $HOME/.kube
    sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
    sudo chown $(id -u):$(id -g) $HOME/.kube/config
    
    方式二:使用命令初始化#
    1. 部署 master 节点,在 10.10.1.80 执行,初始化 master 节点
    kubeadm init \
      --apiserver-advertise-address=10.10.1.80 \
      --image-repository registry.aliyuncs.com/google_containers \
      --kubernetes-version v1.28.0 \
      --control-plane-endpoint=future-k8s-vip:16443 \  #虚拟ip(未定)
      --control-plane-endpoint=future-k8s-vip \  #虚拟ip(未定)
      --service-cidr=10.96.0.0/12 \
      --pod-network-cidr=10.244.0.0/16 \
      --cri-socket=unix:///var/run/cri-dockerd.sock \
      --ignore-preflight-errors=all 
      
      
    mkdir -p $HOME/.kube
    sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
    sudo chown $(id -u):$(id -g) $HOME/.kube/config
    
    1. 配置 ssh 免密码
    #在10.10.1.80上生成公钥,复制到其他master节点上
    ssh-keygen -t rsa
    ssh-copy-id 10.10.1.81
    ssh-copy-id 10.10.1.82
    
    1. 将 10.10.1.80 上的证书拷贝到其他 master 节点
    #在其他master节点创建证书存放目录
    cd /root && mkdir -p /etc/kubernetes/pki/etcd &&mkdir -p ~/.kube/
    
    #将future-k8s-master0的证书复制到future-k8s-master1
    scp /etc/kubernetes/pki/ca.crt 10.10.1.81:/etc/kubernetes/pki/ 
    scp /etc/kubernetes/pki/ca.key 10.10.1.81:/etc/kubernetes/pki/ 
    scp /etc/kubernetes/pki/sa.key 10.10.1.81:/etc/kubernetes/pki/
    scp /etc/kubernetes/pki/sa.pub 10.10.1.81:/etc/kubernetes/pki/ 
    scp /etc/kubernetes/pki/front-proxy-ca.crt 10.10.1.81:/etc/kubernetes/pki/ 
    scp /etc/kubernetes/pki/front-proxy-ca.key 10.10.1.81:/etc/kubernetes/pki/ 
    scp /etc/kubernetes/pki/etcd/ca.crt 10.10.1.81:/etc/kubernetes/pki/etcd/
    scp /etc/kubernetes/pki/etcd/ca.key 10.10.1.81:/etc/kubernetes/pki/etcd/
    
    #将future-k8s-master0的证书复制到future-k8s-master2
    scp /etc/kubernetes/pki/ca.crt 10.10.1.82:/etc/kubernetes/pki/ 
    scp /etc/kubernetes/pki/ca.key 10.10.1.82:/etc/kubernetes/pki/ 
    scp /etc/kubernetes/pki/sa.key 10.10.1.82:/etc/kubernetes/pki/
    scp /etc/kubernetes/pki/sa.pub 10.10.1.82:/etc/kubernetes/pki/ 
    scp /etc/kubernetes/pki/front-proxy-ca.crt 10.10.1.82:/etc/kubernetes/pki/ 
    scp /etc/kubernetes/pki/front-proxy-ca.key 10.10.1.82:/etc/kubernetes/pki/ 
    scp /etc/kubernetes/pki/etcd/ca.crt 10.10.1.82:/etc/kubernetes/pki/etcd/
    scp /etc/kubernetes/pki/etcd/ca.key 10.10.1.82:/etc/kubernetes/pki/etcd/
    
  2. 初始化其他 master 节点#

 kubeadm join future-k8s-vip:16443 --token yjphdh.guefcomqw3am4ask \
        --discovery-token-ca-cert-hash sha256:ed44c7deada0ea0fe5a54212ab4e5aa6fc34672ffe2a2c87a31ba73306e75c21 \
        --control-plane --certificate-key 4929b83577eafcd5933fc0b6506cb6d82e7bc481751e442888c4c2b32b5d0c9c  --cri-socket=unix:///var/run/cri-dockerd.sock
mkdir -p $HOME/.kube
sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
sudo chown $(id -u):$(id -g) $HOME/.kube/config
  1. 初始化 node 节点#

kubeadm join future-k8s-vip:16443 --token yjphdh.guefcomqw3am4ask \
        --discovery-token-ca-cert-hash sha256:ed44c7deada0ea0fe5a54212ab4e5aa6fc34672ffe2a2c87a31ba73306e75c21 --cri-socket=unix:///var/run/cri-dockerd.sock
  1. 设置 master 节点允许调度 POD (可选)#

默认配置下 Kubernetes 不会将 Pod 调度到 Master 节点。如果希望将 k8s-master 也当作 Node 使用,需去除污点,开启调度。

#查看默认配置的污点
kubectl describe node future-k8s-master2 |grep Taints

Taints: node-role.kubernetes.io/control-plane

#去除污点
kubectl taint nodes future-k8s-master2 node-role.kubernetes.io/control-plane-

添加 woker 标记

#添加worker标记
kubectl label nodes future-k8s-master2 node-role.kubernetes.io/worker=
#删除worker标记
kubectl label nodes future-k8s-master2 node-role.kubernetes.io/worker-

任务六:安装网络插件 (master)#

安装 calico

mkdir /data/calico
wget https://docs.tigera.io/archive/v3.25/manifests/calico.yaml
#修改calico.yaml找到CALICO_IPV4POOL_CIDR
vi calico.yaml
##############修改内容###################
 value: "10.244.0.0/16"
 ##############修改内容###################
 #在master节点上安装calico
 kubectl apply -f calico.yaml

查看节点状态

# 查看所有的节点
kubectl get nodes
kubectl get nodes -o wide
#查看集群健康情况
 kubectl get cs

任务七:安装 nginx 进行测试#

# 创建Nginx程序
kubectl create deployment nginx --image=nginx
# 开放80端口
kubectl expose deployment nginx --port=80 --type=NodePort
# 查看pod状态
kubectl get pod
#查看service状态
kubectl get service
##########################################################################
NAME         TYPE        CLUSTER-IP      EXTERNAL-IP   PORT(S)        AGE
kubernetes   ClusterIP   10.96.0.1       <none>        443/TCP        5d1h
nginx        NodePort    10.98.221.224   <none>        80:32743/TCP   23s
##########################################################################
# 访问网页测试(端口号以查看service状态得到的为准)
http://10.10.1.80:32743/

任务八:安装Dashboard 界面#

  1. 下载 yaml 文件
#创建存放目录
mkdir dashboard
cd dashboard/
#2.7
wget https://raw.githubusercontent.com/kubernetes/dashboard/v2.7.0/aio/deploy/recommended.yaml
  1. 修改 yaml 文件
vi recommended.yaml
#将副本设置为2
#################修改内容#######################
kind: Service
apiVersion: v1
metadata:
  labels:
    k8s-app: kubernetes-dashboard
  name: kubernetes-dashboard
  namespace: kubernetes-dashboard
spec:
  ports:
    - port: 443
      targetPort: 8443
      nodePort: 32009   #添加这一行,注意缩进对齐
  selector:
    k8s-app: kubernetes-dashboard
  type: NodePort          #添加这一行,注意缩进对齐
  #################修改内容#######################
  1. 应用安装,查看 pod 和 svc
#安装
kubectl apply -f recommended.yaml
#查看pod和svc
kubectl get pod,svc -o wide -n kubernetes-dashboard
#########################################################
NAME                                             READY   STATUS              RESTARTS   AGE   IP       NODE    NOMINATED NODE   READINESS GATES
pod/dashboard-metrics-scraper-5cb4f4bb9c-mg569   0/1     ContainerCreating   0          9s    <none>   node1   <none>           <none>
pod/kubernetes-dashboard-6967859bff-2968p        0/1     ContainerCreating   0          9s    <none>   node1   <none>           <none>

NAME                                TYPE        CLUSTER-IP       EXTERNAL-IP   PORT(S)         AGE   SELECTOR
service/dashboard-metrics-scraper   ClusterIP   10.100.129.191   <none>        8000/TCP        9s    k8s-app=dashboard-metrics-scraper
service/kubernetes-dashboard        NodePort    10.106.130.53    <none>        443:31283/TCP   9s    k8s-app=kubernetes-dashboard
########################################################

使用所查看的 svc,所提供的端口访问Dashboard

  1. 创建 dashboard 服务账户
#创建一个admin-user的服务账户并与集群绑定
vi dashboard-adminuser.yaml
##################内容####################
apiVersion: v1
kind: ServiceAccount
metadata:
  name: admin-user
  namespace: kubernetes-dashboard

---

apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: admin-user
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: cluster-admin
subjects:
- kind: ServiceAccount
  name: admin-user
  namespace: kubernetes-dashboard
  
---
# 创建密钥,获取服务帐户的长期持有者令牌
apiVersion: v1
kind: Secret
metadata:
  name: admin-user
  namespace: kubernetes-dashboard
  annotations:
    kubernetes.io/service-account.name: "admin-user"
type: kubernetes.io/service-account-token
  ##################内容####################
 
  #执行生效
  kubectl apply -f dashboard-adminuser.yaml
  1. 登录方式

方案一:获取长期可用 token

#将其保存在/data/dashboard/的admin-user.token文件中
cd /data/dashboard/
kubectl get secret admin-user -n kubernetes-dashboard -o jsonpath={".data.token"} | base64 -d > admin-user.token 

获取长期可用 token 脚本

#!/bin/bash
#作者:云
#############描述#############
:<<!
获取长期可用token脚本
将token存放在admin-user.token文件中
!
#############描述#############
kubectl get secret admin-user -n kubernetes-dashboard -o jsonpath={".data.token"} | base64 -d > admin-user.token

echo -e "\033[1;32m创建token成功,请在admin-user.token文件中查看\033[m"

方案二:使用使用 Kubeconfig 文件登录

 #定义 token 变量
 DASH_TOCKEN=$(kubectl get secret admin-user -n kubernetes-dashboard -o jsonpath={".data.token"} | base64 -d)
 #设置 kubeconfig 集群条目
 kubectl config set-cluster kubernetes --server=10.10.1.80:6433 --kubeconfig=/root/dashbord-admin.conf
 #设置 kubeconfig 用户条目
 kubectl config set-credentials admin-user --token=$DASH_TOCKEN --kubeconfig=/root/dashbord-admin.conf
 #设置 kubeconfig 上下文条目
 kubectl config set-context admin-user@kubernetes --cluster=kubernetes --user=admin-user --kubeconfig=/root/dashbord-admin.conf
 #设置 kubeconfig 当前上下文
 kubectl config use-context admin-user@kubernetes  --kubeconfig=/root/dashbord-admin.conf

将生成的 dashbord-admin.conf 文件放到本地主机上,登录时选择Kubeconfig选项,选择 kubeconfig 文件登录

任务九:安装 metrics-server#

下载部署文件

wget https://github.com/kubernetes-sigs/metrics-server/releases/latest/download/components.yaml -O metrics-server-components.yaml

修改 yaml 文件中的 Deployment 内容

---
apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    k8s-app: metrics-server
  name: metrics-server
  namespace: kube-system
spec:
  selector:
    matchLabels:
      k8s-app: metrics-server
  strategy:
    rollingUpdate:
      maxUnavailable: 0
  template:
    metadata:
      labels:
        k8s-app: metrics-server
    spec:
      containers:
      - args:
        - --cert-dir=/tmp
        - --secure-port=4443
        - --kubelet-preferred-address-types=InternalIP,ExternalIP,Hostname
        - --kubelet-use-node-status-port
        - --metric-resolution=15s
        - --kubelet-insecure-tls  #添加
        image: registry.cn-hangzhou.aliyuncs.com/google_containers/metrics-server:v0.6.4 #修改
        imagePullPolicy: IfNotPresent

#安装
kubectl apply -f metrics-server-components.yaml

查看 metrics-server 的 pod 状态

kubectl get pods --all-namespaces | grep metrics

等待一些时间,查看查看各类监控图像已成功显示。

image-20240323222707075-1711204031457-1

任务十:kubectl 命令自动补全#

yum -y install bash-completion
source /usr/share/bash-completion/bash_completion
echo 'source <(kubectl completion bash)' >>  ~/.bashrc
bash

任务十一:ingress-nginx 控制器安装#

#下载yaml文件
wget https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v1.0.0/deploy/static/provider/baremetal/deploy.yaml
#修改yaml文件中拉取镜像的地址
#####################修改内容######################
willdockerhub/ingress-nginx-controller:v1.0.0
hzde0128/kube-webhook-certgen:v1.0
#####################修改内容######################
#修改Deployment修改成DaemonSet
#修改网络模式为host network
#####################修改内容######################
template:
  spec:
    hostNetwork: true
    dnsPolicy: ClusterFirstWithHostNet
    tolerations:  #使用亲和性配置可在所有节点部署
      - key: node-role.kubernetes.io/control-plane
        operator: Exists
        effect: NoSchedule
     nodeSelector:
          kubernetes.io/os: linux
          custem/ingress-controller-ready: 'true'
      containers:
        - name: controller
#####################修改内容######################
#为工作节点设置标签(必需)
kubectl label nodes future-k8s-master0 custem/ingress-controller-ready=true
kubectl label nodes future-k8s-master1 custem/ingress-controller-ready=true
kubectl label nodes future-k8s-master2 custem/ingress-controller-ready=true
kubectl label nodes future-k8s-node3 custem/ingress-controller-ready=true

#安装
kubectl apply -f deploy.yaml

#查看状态
kubectl get pods -n ingress-nginx
################状态##################
NAME                                       READY   STATUS      RESTARTS   AGE
ingress-nginx-admission-create-2lz4v       0/1     Completed   0          5m46s
ingress-nginx-admission-patch-c6896        0/1     Completed   0          5m46s
ingress-nginx-controller-7575fb546-q29qn   1/1     Running     0          5m46s

任务十二:配置Dashboard 代理#

echo '
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: k8s-dashboard
  namespace: kubernetes-dashboard
  labels:
    ingress: k8s-dashboard
  annotations:
    nginx.ingress.kubernetes.io/rewrite-target: /  #重写路径
    nginx.ingress.kubernetes.io/force-ssl-redirect: "true"   #http自动转https
    nginx.ingress.kubernetes.io/use-regex: "true"
    nginx.ingress.kubernetes.io/backend-protocol: "HTTPS"
spec:
  ingressClassName: nginx 
  rules:
    - host: k8s.yjs.51xueweb.cn
      http:
        paths:
          - path: /
            pathType: Prefix
            backend:
              service:
                name: kubernetes-dashboard
                port:
                  number: 443
' > /data/dashboard/dashboard-ingress.yaml

三:对接 k8s 集群与 ceph 集群#

任务一:安装 ceph 客户端(ceph-common)#

在 k8s 集群的每个节点安装 ceph-common

yum install ceph-common -y

任务二:同步 cpeh 集群配置文件#

将 ceph 集群的 /etc/ceph/{ceph.conf,ceph.client.admin.keyring} 文件同步到 k8s 所有节点上

#配置ssh免密
ssh-keygen -t rsa
ssh-copy-id 10.10.1.80
ssh-copy-id 10.10.1.81
ssh-copy-id 10.10.1.82

#拷贝文件
scp -r /etc/ceph/{ceph.conf,ceph.client.admin.keyring} 10.10.1.80:/etc/ceph
scp -r /etc/ceph/{ceph.conf,ceph.client.admin.keyring} 10.10.1.81:/etc/ceph
scp -r /etc/ceph/{ceph.conf,ceph.client.admin.keyring} 10.10.1.82:/etc/ceph

任务三:部署 ceph-csi(使用 rbd)#

  1. 下载 ceph-csi 组件 (k8s 中的一个 master 节点)
#下载文件
wget https://github.com/ceph/ceph-csi/archive/refs/tags/v3.9.0.tar.gz
#解压
mv v3.9.0.tar.gz ceph-csi-v3.9.0.tar.gz
tar -xzf ceph-csi-v3.9.0.tar.gz
#进入目录
cd  ceph-csi-3.9.0/deploy/rbd/kubernetes
mkdir /data/cephfs/csi
#拷进csi中,共6六个文件
cp * /data/cephfs/csi
  1. 拉取 csi 组件所需镜像
#查看所需镜像
grep image csi-rbdplugin-provisioner.yaml
grep image csi-rbdplugin.yaml

在所有 k8s 节点上拉取所需的镜像

cd /data/script
./pull-images.sh registry.k8s.io/sig-storage/csi-provisioner:v3.5.0
./pull-images.sh registry.k8s.io/sig-storage/csi-resizer:v1.8.0
./pull-images.sh registry.k8s.io/sig-storage/csi-snapshotter:v6.2.2
docker pull  quay.io/cephcsi/cephcsi:v3.9.0
./pull-images.sh registry.k8s.io/sig-storage/csi-attacher:v4.3.0
./pull-images.sh registry.k8s.io/sig-storage/csi-node-driver-registrar:v2.8.0
  1. 创建命名空间cephfs
echo '
apiVersion: v1
kind: Namespace
metadata:
  labels:
    kubernetes.io/metadata.name: cephfs
  name: cephfs
  ' > ceph-namespace.yaml
  
 #执行
  kubectl apply -f ceph-namespace.yaml 
  1. 创建连接 ceph 集群的秘钥文件 csi-rbd-secret.yaml
echo '
apiVersion: v1
kind: Secret
metadata:
  name: csi-rbd-secret
  namespace: cephfs
stringData:
  adminID: admin 
  adminKey: AQANDD9lfWg2LBAAHY0mprdbuKFBPJDkE7/I5Q==
  userID: admin  
  userKey: AQANDD9lfWg2LBAAHY0mprdbuKFBPJDkE7/I5Q==
  ' > csi-rbd-secret.yaml
  
   #执行
    kubectl apply -f csi-rbd-secret.yaml
  1. 创建 ceph-config-map.yaml
echo '
apiVersion: v1
kind: ConfigMap
data:
  ceph.conf: |
     [global]
     fsid = 30912204-0c26-413f-8e00-6d55c9c0af03     # 生成的FSID
     mon initial members =k8s-ceph-node0,k8s-ceph-node1,k8s-ceph-node2            # 主机名
     mon host = 10.10.1.16,10.10.1.17,10.10.1.18                       # 对应的IP
     public network = 10.10.1.0/24
     auth cluster required = cephx
     auth service required = cephx
     auth client required = cephx
     osd journal size = 1024
     osd pool default size = 3
     osd pool default min size = 2
     osd pool default pg num = 333
     osd pool default pgp num = 333
     osd crush chooseleaf type = 1
     [mon]
     mon allow pool delete = true

     [mds.k8s-ceph-node0]    
     host = k8s-ceph-node0
  keyring: |
metadata:
  name: ceph-config
  namespace: cephfs
' > ceph-config-map.yaml

 #执行
 kubectl apply -f ceph-config-map.yaml  
  1. 修改 csi-config-map.yaml,配置连接 ceph 集群的信息
echo '
apiVersion: v1
kind: ConfigMap
metadata:
  name: ceph-csi-config
  namespace: cephfs
  labels:
    addonmanager.kubernetes.io/mode: Reconcile
data:
  config.json: |-
    [{"clusterID":"30912204-0c26-413f-8e00-6d55c9c0af03","monitors":["10.10.1.16:6789","10.10.1.17:6789","10.10.1.18:6789"]}]
' > csi-config-map.yaml
  1. 修改 csi 组件配置文件

    1. 拷贝进/data/cephfs/csi目录中的所有 yaml 文件中的命名空间由default改为cephfs

    2. cd /data/cephfs/csi
      sed -i "s/namespace: default/namespace: cephfs/g" $(grep -rl "namespace: default" ./)
      sed -i -e "/^kind: ServiceAccount/{N;N;a\  namespace: cephfs}" $(egrep -rl "^kind: ServiceAccount" ./)
      
    3. csi-rbdplugin-provisioner.yamlcsi-rbdplugin.yaml 中的 kms 部分配置注释掉

    4. # - name: KMS_CONFIGMAP_NAME

      ​ # value: encryptionConfig

      #- name: ceph-csi-encryption-kms-config

      ​ # configMap:

      ​ # name: ceph-csi-encryption-kms-config

 #执行,安装csi组件
 kubectl apply -f csi-config-map.yaml
 kubectl apply -f csi-nodeplugin-rbac.yaml
 kubectl apply -f csidriver.yaml
 kubectl apply -f csi-provisioner-rbac.yaml
 kubectl apply -f csi-rbdplugin-provisioner.yaml
 kubectl apply -f csi-rbdplugin.yaml

任务四:创建 storageclass#

echo '
apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
  annotations:
    k8s.kuboard.cn/storageType: cephfs_provisioner
  name: csi-rbd-sc
provisioner: rbd.csi.ceph.com
parameters:
  # fsName: cephfs  (cephfs方式使用)
  clusterID: 30912204-0c26-413f-8e00-6d55c9c0af03 
  pool: rbd-k8s 
  imageFeatures: layering
  csi.storage.k8s.io/provisioner-secret-name: csi-rbd-secret
  csi.storage.k8s.io/provisioner-secret-namespace: cephfs
  csi.storage.k8s.io/controller-expand-secret-name: csi-rbd-secret
  csi.storage.k8s.io/controller-expand-secret-namespace: cephfs
  csi.storage.k8s.io/node-stage-secret-name: csi-rbd-secret
  csi.storage.k8s.io/node-stage-secret-namespace: cephfs
  csi.storage.k8s.io/fstype: xfs
reclaimPolicy: Delete
volumeBindingMode: Immediate
allowVolumeExpansion: true
mountOptions:
  - discard
 ' > storageclass.yaml
 
 #执行
  kubectl apply -f storageclass.yaml

任务五:创建 PVC#

echo '
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: rbd-pvc 
  namespace: cephfs
spec:
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 1Gi 
  storageClassName: csi-rbd-sc
  ' > pvc.yaml
  
#执行
 kubectl apply -f pvc.yaml
#查看PVC是否创建成功
kubectl get pvc -n cephfs
#查看PV是否创建成功
kubectl get pv -n cephfs

#查看ceph集群中的cephfs_data存储池中是否创建了image
 rbd ls -p rbd-k8s

任务六:创建 pod,进行测试验证#

echo '
apiVersion: v1
kind: Pod
metadata:
  name: csi-rbd-demo-pod
  namespace: cephfs
spec:
  containers:
    - name: web-server
      image: nginx:latest
      volumeMounts:
        - name: mypvc
          mountPath: /var/lib/www/html
  volumes:
    - name: mypvc
      persistentVolumeClaim:
        claimName: rbd-pvc 
        readOnly: false
' > pod.yaml

#执行
 kubectl apply -f pod.yaml
 #进入容器查看挂载信息
kubectl exec -it csi-rbd-demo-pod -n cephfs -- bash
 lsblk -l|grep rbd
加载中...
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