Docker部署NFS服务

创建基础镜像

mkdir /data/nfs -p
chmod 755 /data/nfs

# NFS默认端口: 111、2049、20048
docker run -d \
--privileged \
--name nfs_server \
-p 111:111/tcp \
-p 111:111/udp \
-p 2049:2049/tcp \
-p 2049:2049/udp \
-p 30001-30005:30001-30005/tcp \
-p 30001-30005:30001-30005/udp \
-v /data/nfs:/data/nfs \
centos:centos7.9.2009 /usr/sbin/init 

# docker exec -it nfs_server bash

# =================== 生成镜像并推送到私有仓库 =================== #
docker commit -p -a "langpf" -m "centos7.9.2009, nfs_server" 25c6d01e41b0 rpp-harbor.com/my-project/nfs_server:centos7.9.2009-u

$. docker save -o nfs_server-centos7.9.2009-u.tar rpp-harbor.com/my-project/nfs_server:centos7.9.2009-u
$. docker load --input nfs_server-centos7.9.2009-u.tar

$. docker push rpp-harbor.com/my-project/nfs_server:centos7.9.2009-u

部署NFS Server和Client

# step 1
docker exec -it nfs_server bash
chmod 755 /data/nfs

# step 2
yum -y install nfs-utils rpcbind
yum install net-tools -y

# step 3
$. vi /etc/exports
# 写入
/data/nfs 192.168.1.0/24(rw,sync,all_squash,anonuid=0,anongid=0)
/data/nfs 172.17.0.0/24(rw,sync,root_squash)
# -----
/data/nfs 172.17.0.0/24(rw,sync,root_squash)
/data/nfs 192.168.31.0/24(insecure,fsid=0,rw,sync,no_root_squash,acl)
# 编译生效
$. exportfs -arv

# ===================== 修改nfs端口号 ===================== #
# 1. 修改 /etc/sysconfig/nfs 配置
$. vi /etc/sysconfig/nfs
# 在文末加入
RQUOTAD_PORT=30001
LOCKD_TCPPORT=30002
LOCKD_UDPPORT=30002
MOUNTD_PORT=30003
STATD_PORT=30004
STATD_OUTGOING_PORT=30005

# 2. 修改 /etc/modprobe.d/lockd.conf 配置
$. vi /etc/modprobe.d/lockd.conf
# 在/etc/modprobe.d/lockd.conf中添加以下设置：
options lockd nlm_tcpport=30002
options lockd nlm_udpport=30002

# 3. 重新加载NFS配置和服务：
systemctl restart rpcbind
systemctl restart nfs
#systemctl restart nfs-config
#systemctl restart nfs-idmap
#systemctl restart nfs-lock

# strep systemctl start rpcbind
systemctl start nfs

# step
systemctl status rpcbind
systemctl status nfs
systemctl enable rpcbind
systemctl enable nfs

# 4.  
exportfs -arv

# 校验配置等
showmount -e
showmount -e 192.168.31.133
# -----
showmount -e 192.168.1.161
rpcinfo -p 
rpcinfo -p 192.168.1.161

# ========================= 客户端挂载 ========================= #
# 普通客户端需要先安装nfs, 执行如下命令
# k8s集群要挂载nfs, 也需要在所有节点执行如下命令
yum -y install nfs-utils 

# ----------
showmount -e 172.17.0.2
showmount -e 192.168.31.133
showmount -e 192.168.1.161

# -----------
mount -t nfs 172.17.0.2:/data/nfs /data -o proto=tcp -o nolock
mount -t nfs 192.168.31.133:/data/nfs /data2 -o proto=tcp -o nolock
umount /data

# -----------
mount -t nfs 192.168.1.161:/data/nfs /data2 -o proto=tcp -o nolock
umount /data2

# ===================== 其它命令 ====================== #
# 在服务端执行，查看nfs状态信息
nfsstat -s

# 在客户端执行，查看nfs挂载信息
nfsstat -m

# 查看服务端的远程共享信息，此命令会调用服务端的20048端口
showmount -e 192.168.202.151

# 查看rpcbind注册的所有端口号
rpcinfo -p
rpcinfo -p 192.168.1.161

# 在服务端执行，重新挂载/etc/exports中配置
exportfs -r

• 问题

# 报错；
root@k8s-master:~# showmount -e 192.168.1.161
rpc mount export: RPC: Unable to receive; errno = No route to host
root@k8s-master:~# rpcinfo -p 192.168.1.161
192.168.1.161: RPC: Remote system error - No route to host


# 解决: