docker默认路径存储不足解决过程

docker的默认路径存储不足

添加磁盘

[root@localhost ~]# fdisk -l 磁盘 /dev/sda：42.9 GB, 42949672960 字节，83886080 个扇区 Units = 扇区 of 1 * 512 = 512 bytes 扇区大小(逻辑/物理)：512 字节 / 512 字节 I/O 大小(最小/最佳)：512 字节 / 512 字节 磁盘标签类型：dos 磁盘标识符：0x00095d44 设备 Boot Start End Blocks Id System /dev/sda1 * 2048 2099199 1048576 83 Linux /dev/sda2 2099200 83886079 40893440 8e Linux LVM 磁盘 /dev/sdb：107.4 GB, 107374182400 字节，209715200 个扇区 Units = 扇区 of 1 * 512 = 512 bytes 扇区大小(逻辑/物理)：512 字节 / 512 字节 I/O 大小(最小/最佳)：512 字节 / 512 字节 磁盘 /dev/mapper/centos-root：39.7 GB, 39720058880 字节，77578240 个扇区 Units = 扇区 of 1 * 512 = 512 bytes 扇区大小(逻辑/物理)：512 字节 / 512 字节 I/O 大小(最小/最佳)：512 字节 / 512 字节 磁盘 /dev/mapper/centos-swap：2147 MB, 2147483648 字节，4194304 个扇区 Units = 扇区 of 1 * 512 = 512 bytes 扇区大小(逻辑/物理)：512 字节 / 512 字节 I/O 大小(最小/最佳)：512 字节 / 512 字节 [root@localhost ~]# fdisk /dev/sdb 欢迎使用 fdisk (util-linux 2.23.2)。 更改将停留在内存中，直到您决定将更改写入磁盘。 使用写入命令前请三思。 Device does not contain a recognized partition table 使用磁盘标识符 0xcaf2ac7e 创建新的 DOS 磁盘标签。 命令(输入 m 获取帮助)：g Building a new GPT disklabel (GUID: 60063BE6-D393-4582-AEEB-C98087007C13) 命令(输入 m 获取帮助)：n 分区号 (1-128，默认 1)： 第一个扇区 (2048-209715166，默认 2048)： Last sector, +sectors or +size{K,M,G,T,P} (2048-209715166，默认 209715166)： 已创建分区 1 命令(输入 m 获取帮助)：w The partition table has been altered! Calling ioctl() to re-read partition table. 正在同步磁盘。 #格式化磁盘 [root@localhost ~]# mkfs -t xfs /dev/sdb1 meta-data=/dev/sdb1 isize=512 agcount=4, agsize=6553535 blks = sectsz=512 attr=2, projid32bit=1 = crc=1 finobt=0, sparse=0 data = bsize=4096 blocks=26214139, imaxpct=25 = sunit=0 swidth=0 blks naming =version 2 bsize=4096 ascii-ci=0 ftype=1 log =internal log bsize=4096 blocks=12799, version=2 = sectsz=512 sunit=0 blks, lazy-count=1 realtime =none extsz=4096 blocks=0, rtextents=0 [root@localhost ~]# mount -t xfs /dev/sdb1 /data

永久写入磁盘

[root@localhost ~]# cat /etc/fstab # # /etc/fstab # Created by anaconda on Tue Nov 22 19:08:23 2022 # # Accessible filesystems, by reference, are maintained under /dev/disk # See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info # /dev/mapper/centos-root / xfs defaults 0 0 UUID=6638d2be-bc05-4ab2-bc32-d1ae3234d408 /boot xfs defaults 0 0 /dev/mapper/centos-swap swap swap defaults 0 0 UUID=adc0d342-853c-4f5a-b5ff-d8dc65ec9705 /data xfs defaults 0 0 [root@localhost ~]# df -h 文件系统 容量 已用 可用 已用% 挂载点 devtmpfs 898M 0 898M 0% /dev tmpfs 910M 0 910M 0% /dev/shm tmpfs 910M 9.5M 901M 2% /run tmpfs 910M 0 910M 0% /sys/fs/cgroup /dev/mapper/centos-root 37G 32G 5.4G 86% / /dev/sda1 1014M 151M 864M 15% /boot tmpfs 182M 0 182M 0% /run/user/0 /dev/sdb1 100G 33M 100G 1% /data

迁移docker数据

[root@localhost ~]# systemctl stop docker Warning: Stopping docker.service, but it can still be activated by: docker.socket [root@localhost ~]# systemctl stop docker.socket [root@localhost ~]# [root@localhost ~]# mkdir /data/docker 同步docker镜像数据 nohup rsync -avz /var/lib/docker/ /data/docker/ & cp -r /var/lib/docker/ /data/docker/ 编辑/etc/docker/daemon.json，添加参数，将docker的目录迁移绑定 “data-root “: “/data/docker” [root@localhost ~]# systemctl restart docker

graph 1.17以前

–data-root 1.17以后

[root@localhost ~]# docker info Client: Context: default Debug Mode: false Plugins: app: Docker App (Docker Inc., v0.9.1-beta3) buildx: Build with BuildKit (Docker Inc., v0.6.3-docker) scan: Docker Scan (Docker Inc., v0.23.0) Server: Containers: 0 Running: 0 Paused: 0 Stopped: 0 Images: 265 Server Version: 20.10.9 Storage Driver: overlay2 Backing Filesystem: xfs Supports d_type: true Native Overlay Diff: true userxattr: false Logging Driver: json-file Cgroup Driver: cgroupfs Cgroup Version: 1 Plugins: Volume: local Network: bridge host ipvlan macvlan null overlay Log: awslogs fluentd gcplogs gelf journald json-file local logentries splunk syslog Swarm: inactive Runtimes: runc io.containerd.runc.v2 io.containerd.runtime.v1.linux Default Runtime: runc Init Binary: docker-init containerd version: ae07eda36dd25f8a1b98dfbf587313b99c0190bb runc version: v1.1.12-0-g51d5e94 init version: de40ad0 Security Options: seccomp Profile: default Kernel Version: 3.10.0-1160.el7.x86_64 Operating System: CentOS Linux 7 (Core) OSType: linux Architecture: x86_64 CPUs: 2 Total Memory: 1.777GiB Name: localhost.localdomain ID: V2R4:D3LK:M35M:NUSH:PCXP:XSBF:O5RF:YSHX:ZOMV:RC4G:3DFJ:6J3Q Docker Root Dir: /data/docker Debug Mode: false Registry: https://index.docker.io/v1/ Labels: Experimental: false Insecure Registries: 192.168.12.97 39.156.86.16:50000 harbor.inspur.local nexus.inspur.local registry.cn-beijing.aliyuncs.com registry.cn-hangzhou.aliyuncs.com 10.110.63.67 127.0.0.0/8 Registry Mirrors: https://38ov96r5.mirror.aliyuncs.com/ Live Restore Enabled: false

总结