本节动态存储主要介绍GFS的使用。
一、准备工作
为了保证 Pod 能够正常使用 GFS 作为后端存储，需要每台运行 Pod 的节点上提前安装 GFS 的客户端工具。
所有节点安装 GFS 客户端：
[root@k8s-master01 ~]#yum install glusterfs glusterfs-fuse -y Loaded plugins: fastestmirror Determining fastest mirrors * base: mirrors.aliyun.com * extras: mirrors.aliyun.com * updates: mirrors.aliyun.com aliyun-docker-ce | 3.5 kB 00:00:00 base | 3.6 kB 00:00:00 epel | 4.7 kB 00:00:00 extras | 2.9 kB 00:00:00 updates | 2.9 kB 00:00:00 (1/2): epel/x86_64/updateinfo | 1.0 MB 00:00:05 (2/2): epel/x86_64/primary_db | 6.9 MB 00:00:25 Resolving Dependencies --> Running transaction check ---> Package glusterfs.x86_64 0:6.0-49.1.el7 will be installed --> Processing Dependency: glusterfs-libs(x86-64) = 6.0-49.1.el7 for package: glusterfs-6.0-49.1.el7.x86_64 --> Processing Dependency: libglusterfs.so.0()(64bit) for package: glusterfs-6.0-49.1.el7.x86_64 --> Processing Dependency: libgfxdr.so.0()(64bit) for package: glusterfs-6.0-49.1.el7.x86_64 --> Processing Dependency: libgfrpc.so.0()(64bit) for package: glusterfs-6.0-49.1.el7.x86_64 ---> Package glusterfs-fuse.x86_64 0:6.0-49.1.el7 will be installed --> Processing Dependency: glusterfs-client-xlators(x86-64) = 6.0-49.1.el7 for package: glusterfs-fuse-6.0-49.1.el7.x86_64 --> Processing Dependency: attr for package: glusterfs-fuse-6.0-49.1.el7.x86_64 --> Running transaction check ---> Package attr.x86_64 0:2.4.46-13.el7 will be installed ---> Package glusterfs-client-xlators.x86_64 0:6.0-49.1.el7 will be installed ---> Package glusterfs-libs.x86_64 0:6.0-49.1.el7 will be installed --> Finished Dependency Resolution Dependencies Resolved ===================================================================================================================== Package Arch Version Repository Size ===================================================================================================================== Installing: glusterfs x86_64 6.0-49.1.el7 updates 622 k glusterfs-fuse x86_64 6.0-49.1.el7 updates 130 k Installing for dependencies: attr x86_64 2.4.46-13.el7 base 66 k glusterfs-client-xlators x86_64 6.0-49.1.el7 updates 839 k glusterfs-libs x86_64 6.0-49.1.el7 updates 398 k Transaction Summary ===================================================================================================================== Install 2 Packages (+3 Dependent packages) Total download size: 2.0 M Installed size: 9.0 M Downloading packages: (1/5): attr-2.4.46-13.el7.x86_64.rpm | 66 kB 00:00:00 (2/5): glusterfs-client-xlators-6.0-49.1.el7.x86_64.rpm | 839 kB 00:00:02 (3/5): glusterfs-fuse-6.0-49.1.el7.x86_64.rpm | 130 kB 00:00:00 (4/5): glusterfs-6.0-49.1.el7.x86_64.rpm | 622 kB 00:00:03 (5/5): glusterfs-libs-6.0-49.1.el7.x86_64.rpm | 398 kB 00:00:01 --------------------------------------------------------------------------------------------------------------------- Total 435 kB/s | 2.0 MB 00:00:04 Running transaction check Running transaction test Transaction test succeeded Running transaction Installing : glusterfs-libs-6.0-49.1.el7.x86_64 1/5 Installing : glusterfs-6.0-49.1.el7.x86_64 2/5 Installing : glusterfs-client-xlators-6.0-49.1.el7.x86_64 3/5 Installing : attr-2.4.46-13.el7.x86_64 4/5 Installing : glusterfs-fuse-6.0-49.1.el7.x86_64 5/5 Verifying : attr-2.4.46-13.el7.x86_64 1/5 Verifying : glusterfs-fuse-6.0-49.1.el7.x86_64 2/5 Verifying : glusterfs-6.0-49.1.el7.x86_64 3/5 Verifying : glusterfs-client-xlators-6.0-49.1.el7.x86_64 4/5 Verifying : glusterfs-libs-6.0-49.1.el7.x86_64 5/5 Installed: glusterfs.x86_64 0:6.0-49.1.el7 glusterfs-fuse.x86_64 0:6.0-49.1.el7 Dependency Installed: attr.x86_64 0:2.4.46-13.el7 glusterfs-client-xlators.x86_64 0:6.0-49.1.el7 glusterfs-libs.x86_64 0:6.0-49.1.el7 Complete! [root@k8s-master01 ~]#