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build_container.his
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脚本启动于 2020年02月29日 星期六 20时55分00秒
]0;root@8jmulupeazlhi2mu-1111669:~[?1034h[root@8jmulupeazlhi2mu-1111669 ~]# # step1: 准备一个rootfs
]0;root@8jmulupeazlhi2mu-1111669:~[root@8jmulupeazlhi2mu-1111669 ~]# cd /root/container/
]0;root@8jmulupeazlhi2mu-1111669:~/container[root@8jmulupeazlhi2mu-1111669 container]# pwd
/root/container
]0;root@8jmulupeazlhi2mu-1111669:~/container[root@8jmulupeazlhi2mu-1111669 container]# # 修改mount类型为private，确保后续的mount/umount不会在namespace之间传播
]0;root@8jmulupeazlhi2mu-1111669:~/container[root@8jmulupeazlhi2mu-1111669 container]# mount --make-rprivate /
]0;root@8jmulupeazlhi2mu-1111669:~/container[root@8jmulupeazlhi2mu-1111669 container]# CID=$(docker run -d alpine true)
]0;root@8jmulupeazlhi2mu-1111669:~/container[root@8jmulupeazlhi2mu-1111669 container]# docker export $CID | tar -xf-
]0;root@8jmulupeazlhi2mu-1111669:~/container[root@8jmulupeazlhi2mu-1111669 container]# ls # rootfs建立好啦
[0m[38;5;27mbin[0m [38;5;27mdev[0m [38;5;27metc[0m [38;5;27mhome[0m [38;5;27mlib[0m [38;5;27mmedia[0m [38;5;27mmnt[0m [38;5;27mopt[0m [38;5;27mproc[0m [38;5;27mroot[0m [38;5;27mrun[0m [38;5;27msbin[0m [38;5;27msrv[0m [38;5;27msys[0m [48;5;10;38;5;16mtmp[0m [38;5;27musr[0m [38;5;27mvar[0m
]0;root@8jmulupeazlhi2mu-1111669:~/container[root@8jmulupeazlhi2mu-1111669 container]# # step2: 命名空间隔离
]0;root@8jmulupeazlhi2mu-1111669:~/container[root@8jmulupeazlhi2mu-1111669 container]# # 使用unshare为新的shell创建命名空间
]0;root@8jmulupeazlhi2mu-1111669:~/container[root@8jmulupeazlhi2mu-1111669 container]# unshare --mount --uts --ipc --net --pid --fork /bin/bash
]0;root@8jmulupeazlhi2mu-1111669:~/container[?1034h[root@8jmulupeazlhi2mu-1111669 container]# echo $$ # 看看新进程的pid
1
]0;root@8jmulupeazlhi2mu-1111669:~/container[root@8jmulupeazlhi2mu-1111669 container]# hostname unshare-bash # 修改一下hostname
]0;root@8jmulupeazlhi2mu-1111669:~/container[root@8jmulupeazlhi2mu-1111669 container]# exec bash #替换bash，显现hostname修改后的效果
]0;root@8jmulupeazlhi2mu-1111669:~/container[?1034h[root@unshare-bash container]# # hostname变化了
]0;root@8jmulupeazlhi2mu-1111669:~/container[root@unshare-bash container]# # step3: 隔离挂载信息
]0;root@8jmulupeazlhi2mu-1111669:~/container[root@unshare-bash container]# mount
/dev/vda2 on / type xfs (rw,relatime,attr2,inode64,noquota)
devtmpfs on /dev type devtmpfs (rw,nosuid,size=1929332k,nr_inodes=482333,mode=755)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
mqueue on /dev/mqueue type mqueue (rw,relatime)
hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime)
proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=31,pgrp=0,timeout=0,minproto=5,maxproto=5,direct,pipe_ino=16865)
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
securityfs on /sys/kernel/security type securityfs (rw,nosuid,nodev,noexec,relatime)
tmpfs on /sys/fs/cgroup type tmpfs (ro,nosuid,nodev,noexec,mode=755)
cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,xattr,release_agent=/usr/lib/systemd/systemd-cgroups-agent,name=systemd)
cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpuacct,cpu)
cgroup on /sys/fs/cgroup/pids type cgroup (rw,nosuid,nodev,noexec,relatime,pids)
cgroup on /sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory)
cgroup on /sys/fs/cgroup/perf_event type cgroup (rw,nosuid,nodev,noexec,relatime,perf_event)
cgroup on /sys/fs/cgroup/net_cls,net_prio type cgroup (rw,nosuid,nodev,noexec,relatime,net_prio,net_cls)
cgroup on /sys/fs/cgroup/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,blkio)
cgroup on /sys/fs/cgroup/hugetlb type cgroup (rw,nosuid,nodev,noexec,relatime,hugetlb)
cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset)
cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer)
cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices)
pstore on /sys/fs/pstore type pstore (rw,nosuid,nodev,noexec,relatime)
configfs on /sys/kernel/config type configfs (rw,relatime)
debugfs on /sys/kernel/debug type debugfs (rw,relatime)
tmpfs on /run type tmpfs (rw,nosuid,nodev,mode=755)
tmpfs on /run/user/0 type tmpfs (rw,nosuid,nodev,relatime,size=388004k,mode=700)
]0;root@8jmulupeazlhi2mu-1111669:~/container[root@unshare-bash container]# # 还是能看到host上的mount
]0;root@8jmulupeazlhi2mu-1111669:~/container[root@unshare-bash container]# ps -ef
UID PID PPID C STIME TTY TIME CMD
root 1 0 0 2月28 ? 00:00:02 /usr/lib/systemd/systemd --switched-root --system --deserialize 22
root 2 0 0 2月28 ? 00:00:00 [kthreadd]
root 3 2 0 2月28 ? 00:00:00 [ksoftirqd/0]
root 5 2 0 2月28 ? 00:00:00 [kworker/0:0H]
root 6 2 0 2月28 ? 00:00:01 [kworker/u4:0]
root 7 2 0 2月28 ? 00:00:00 [migration/0]
root 8 2 0 2月28 ? 00:00:00 [rcu_bh]
root 9 2 0 2月28 ? 00:00:05 [rcu_sched]
root 10 2 0 2月28 ? 00:00:00 [lru-add-drain]
root 11 2 0 2月28 ? 00:00:00 [watchdog/0]
root 12 2 0 2月28 ? 00:00:00 [watchdog/1]
root 13 2 0 2月28 ? 00:00:00 [migration/1]
root 14 2 0 2月28 ? 00:00:00 [ksoftirqd/1]
root 16 2 0 2月28 ? 00:00:00 [kworker/1:0H]
root 18 2 0 2月28 ? 00:00:00 [kdevtmpfs]
root 19 2 0 2月28 ? 00:00:00 [netns]
root 20 2 0 2月28 ? 00:00:00 [khungtaskd]
root 21 2 0 2月28 ? 00:00:00 [writeback]
root 22 2 0 2月28 ? 00:00:00 [kintegrityd]
root 23 2 0 2月28 ? 00:00:00 [bioset]
root 24 2 0 2月28 ? 00:00:00 [bioset]
root 25 2 0 2月28 ? 00:00:00 [bioset]
root 26 2 0 2月28 ? 00:00:00 [kblockd]
root 27 2 0 2月28 ? 00:00:00 [md]
root 28 2 0 2月28 ? 00:00:00 [edac-poller]
root 29 2 0 2月28 ? 00:00:00 [watchdogd]
root 36 2 0 2月28 ? 00:00:00 [kswapd0]
root 37 2 0 2月28 ? 00:00:00 [ksmd]
root 38 2 0 2月28 ? 00:00:00 [khugepaged]
root 39 2 0 2月28 ? 00:00:00 [crypto]
root 47 2 0 2月28 ? 00:00:00 [kthrotld]
root 49 2 0 2月28 ? 00:00:00 [kmpath_rdacd]
root 50 2 0 2月28 ? 00:00:00 [kaluad]
root 51 2 0 2月28 ? 00:00:00 [kpsmoused]
root 52 2 0 2月28 ? 00:00:00 [ipv6_addrconf]
root 65 2 0 2月28 ? 00:00:00 [deferwq]
root 97 2 0 2月28 ? 00:00:00 [kauditd]
root 644 2 0 2月28 ? 00:00:00 [ata_sff]
root 685 2 0 2月28 ? 00:00:00 [scsi_eh_0]
root 692 2 0 2月28 ? 00:00:00 [scsi_tmf_0]
root 696 2 0 2月28 ? 00:00:00 [scsi_eh_1]
root 701 2 0 2月28 ? 00:00:00 [scsi_tmf_1]
root 712 2 0 2月28 ? 00:00:01 [kworker/u4:3]
root 852 2 0 2月28 ? 00:00:00 [ttm_swap]
root 1769 2 0 2月28 ? 00:00:00 [kworker/1:1H]
root 1823 2 0 2月28 ? 00:00:00 [bioset]
root 1824 2 0 2月28 ? 00:00:00 [xfsalloc]
root 1825 2 0 2月28 ? 00:00:00 [xfs_mru_cache]
root 1834 2 0 2月28 ? 00:00:00 [xfs-buf/vda2]
root 1835 2 0 2月28 ? 00:00:00 [xfs-data/vda2]
root 1844 2 0 2月28 ? 00:00:00 [xfs-conv/vda2]
root 1845 2 0 2月28 ? 00:00:00 [xfs-cil/vda2]
root 1846 2 0 2月28 ? 00:00:00 [xfs-reclaim/vda]
root 1847 2 0 2月28 ? 00:00:00 [xfs-log/vda2]
root 1848 2 0 2月28 ? 00:00:00 [xfs-eofblocks/v]
root 1849 2 0 2月28 ? 00:00:26 [xfsaild/vda2]
root 1850 2 0 2月28 ? 00:00:00 [kworker/0:1H]
root 1919 1 0 2月28 ? 00:00:03 /usr/lib/systemd/systemd-journald
root 1943 1 0 2月28 ? 00:00:00 /usr/sbin/lvmetad -f
root 1944 1 0 2月28 ? 00:00:00 /usr/lib/systemd/systemd-udevd
root 3666 2 0 2月28 ? 00:00:00 [nfit]
root 3717 1 0 2月28 ? 00:00:00 /sbin/auditd
root 3747 1 0 2月28 ? 00:00:00 /usr/sbin/smartd -n -q never
root 3749 1 0 2月28 ? 00:00:05 /sbin/rngd -f
dbus 3750 1 0 2月28 ? 00:00:01 /usr/bin/dbus-daemon --system --address=systemd: --nofork --nopidfile --systemd-activation
chrony 3752 1 0 2月28 ? 00:00:00 /usr/sbin/chronyd
root 3757 1 0 2月28 ? 00:00:01 /usr/sbin/NetworkManager --no-daemon
root 3759 1 0 2月28 ? 00:00:03 /usr/sbin/irqbalance --foreground
polkitd 3760 1 0 2月28 ? 00:00:00 /usr/lib/polkit-1/polkitd --no-debug
root 3762 1 0 2月28 ? 00:00:00 /usr/sbin/abrtd -d -s
root 3764 1 0 2月28 ? 00:00:00 /usr/bin/abrt-watch-log -F BUG: WARNING: at WARNING: CPU: INFO: possible recursive locking detected ernel BUG at list_del corrupti
root 3765 1 0 2月28 ? 00:00:00 /usr/lib/systemd/systemd-logind
libstor+ 3766 1 0 2月28 ? 00:00:00 /usr/bin/lsmd -d
root 3846 3757 0 2月28 ? 00:00:00 /sbin/dhclient -d -q -sf /usr/libexec/nm-dhcp-helper -pf /var/run/dhclient-eth0.pid -lf /var/lib/NetworkManager/dhclient-d6487b07-
root 4070 1 0 2月28 ? 00:00:07 /usr/bin/python2 -Es /usr/sbin/tuned -l -P
root 4301 1 0 2月28 ? 00:00:00 /usr/libexec/postfix/master -w
postfix 4309 4301 0 2月28 ? 00:00:00 qmgr -l -t unix -u
root 4353 1 0 2月28 ? 00:00:04 /usr/sbin/rsyslogd -n
root 4382 1 0 2月28 ? 00:00:02 /usr/sbin/sshd -D
root 4388 1 0 2月28 ? 00:00:00 /usr/sbin/crond -n
root 4391 1 0 2月28 ? 00:00:00 /usr/sbin/atd -f
root 4412 1 0 2月28 tty1 00:00:00 /sbin/agetty --noclear tty1 linux
root 4579 1 0 2月28 ? 00:00:50 /CloudResetPwdUpdateAgent/bin/./wrapper /CloudResetPwdUpdateAgent/bin/../conf/wrapper.conf wrapper.syslog.ident=cloudResetPwdUpdat
root 4667 4579 0 2月28 ? 00:01:30 /CloudResetPwdUpdateAgent/depend/jre1.8.0_131/bin/java -Dorg.tanukisoftware.wrapper.WrapperSimpleApp.maxStartMainWait=40 -Djava.li
root 4918 1 1 2月28 ? 00:14:11 python /usr/bin/denyhosts.py --daemon --config=/usr/share/denyhosts/denyhosts.cfg
root 4937 1 0 2月28 ? 00:02:12 /usr/bin/containerd
root 4939 1 0 2月28 ? 00:01:01 /usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock
postfix 23262 4301 0 19:55 ? 00:00:00 pickup -l -t unix -u
root 23271 4382 0 19:58 ? 00:00:00 sshd: root@pts/0
root 23273 23271 0 19:58 pts/0 00:00:00 -bash
root 23470 2 0 20:12 ? 00:00:00 [kworker/0:7]
root 23471 2 0 20:12 ? 00:00:00 [kworker/0:8]
root 23696 2 0 20:35 ? 00:00:00 [kworker/1:1]
root 24027 2 0 20:46 ? 00:00:00 [kworker/1:2]
root 24184 2 0 20:47 ? 00:00:00 [kworker/0:0]
root 24814 2 0 20:51 ? 00:00:00 [kworker/1:0]
root 24852 2 0 20:53 ? 00:00:00 [kworker/0:1]
root 24853 2 0 20:53 ? 00:00:00 [kworker/0:2]
root 24854 2 0 20:53 ? 00:00:00 [kworker/0:3]
root 24855 2 0 20:53 ? 00:00:00 [kworker/0:4]
root 24860 4382 0 20:53 ? 00:00:00 sshd: root@pts/3
root 24862 24860 0 20:54 pts/3 00:00:00 -bash
root 24880 1 0 20:54 ? 00:00:00 /usr/sbin/abrt-dbus -t133
root 24901 2 0 20:54 ? 00:00:00 [kworker/u4:1]
root 24922 23273 0 20:55 pts/0 00:00:00 script -t -a build_container.his
root 24924 24922 0 20:55 pts/0 00:00:00 script -t -a build_container.his
root 24925 24924 0 20:55 pts/1 00:00:00 bash -i
root 25087 24925 0 20:55 pts/1 00:00:00 unshare --mount --uts --ipc --net --pid --fork /bin/bash
root 25089 25087 0 20:55 pts/1 00:00:00 bash
root 25151 25089 0 20:56 pts/1 00:00:00 ps -ef
]0;root@8jmulupeazlhi2mu-1111669:~/container[root@unshare-bash container]# # 还是能看到host上的进程
]0;root@8jmulupeazlhi2mu-1111669:~/container[root@unshare-bash container]# # 重新mount一下/proc
]0;root@8jmulupeazlhi2mu-1111669:~/container[root@unshare-bash container]# mount -t proc none /proc
]0;root@8jmulupeazlhi2mu-1111669:~/container[root@unshare-bash container]# ps -ef
UID PID PPID C STIME TTY TIME CMD
root 1 0 0 20:55 pts/1 00:00:00 bash
root 62 1 0 20:56 pts/1 00:00:00 ps -ef
]0;root@8jmulupeazlhi2mu-1111669:~/container[root@unshare-bash container]# # 啊哈，现在我们的ps正常了!
]0;root@8jmulupeazlhi2mu-1111669:~/container[root@unshare-bash container]# mount --bind /root/container/ /root/container/
]0;root@8jmulupeazlhi2mu-1111669:~/container[root@unshare-bash container]# cd /root/container/
]0;root@8jmulupeazlhi2mu-1111669:~/container[root@unshare-bash container]# mkdir oldroot/
]0;root@8jmulupeazlhi2mu-1111669:~/container[root@unshare-bash container]# pivot_root . oldroot/
]0;root@8jmulupeazlhi2mu-1111669:~/container[root@unshare-bash container]# cd /
]0;root@8jmulupeazlhi2mu-1111669:/[root@unshare-bash /]# PATH=$PATH:/bin:/sbin
]0;root@8jmulupeazlhi2mu-1111669:/[root@unshare-bash /]# mount -t proc none /proc
]0;root@8jmulupeazlhi2mu-1111669:/[root@unshare-bash /]# ps -ef
PID USER TIME COMMAND
1 root 0:00 bash
67 root 0:00 ps -ef
]0;root@8jmulupeazlhi2mu-1111669:/[root@unshare-bash /]# mount
rootfs on / type rootfs (rw)
/dev/vda2 on /oldroot type xfs (rw,relatime,attr2,inode64,noquota)
devtmpfs on /oldroot/dev type devtmpfs (rw,nosuid,size=1929332k,nr_inodes=482333,mode=755)
tmpfs on /oldroot/dev/shm type tmpfs (rw,nosuid,nodev)
devpts on /oldroot/dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
mqueue on /oldroot/dev/mqueue type mqueue (rw,relatime)
hugetlbfs on /oldroot/dev/hugepages type hugetlbfs (rw,relatime)
proc on /oldroot/proc type proc (rw,nosuid,nodev,noexec,relatime)
systemd-1 on /oldroot/proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=31,pgrp=0,timeout=0,minproto=5,maxproto=5,direct,pipe_ino=16865)
sysfs on /oldroot/sys type sysfs (rw,nosuid,nodev,noexec,relatime)
securityfs on /oldroot/sys/kernel/security type securityfs (rw,nosuid,nodev,noexec,relatime)
tmpfs on /oldroot/sys/fs/cgroup type tmpfs (ro,nosuid,nodev,noexec,mode=755)
cgroup on /oldroot/sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,xattr,release_agent=/usr/lib/systemd/systemd-cgroups-agent,name=systemd)
cgroup on /oldroot/sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpuacct,cpu)
cgroup on /oldroot/sys/fs/cgroup/pids type cgroup (rw,nosuid,nodev,noexec,relatime,pids)
cgroup on /oldroot/sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory)
cgroup on /oldroot/sys/fs/cgroup/perf_event type cgroup (rw,nosuid,nodev,noexec,relatime,perf_event)
cgroup on /oldroot/sys/fs/cgroup/net_cls,net_prio type cgroup (rw,nosuid,nodev,noexec,relatime,net_prio,net_cls)
cgroup on /oldroot/sys/fs/cgroup/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,blkio)
cgroup on /oldroot/sys/fs/cgroup/hugetlb type cgroup (rw,nosuid,nodev,noexec,relatime,hugetlb)
cgroup on /oldroot/sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset)
cgroup on /oldroot/sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer)
cgroup on /oldroot/sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices)
pstore on /oldroot/sys/fs/pstore type pstore (rw,nosuid,nodev,noexec,relatime)
configfs on /oldroot/sys/kernel/config type configfs (rw,relatime)
debugfs on /oldroot/sys/kernel/debug type debugfs (rw,relatime)
tmpfs on /oldroot/run type tmpfs (rw,nosuid,nodev,mode=755)
tmpfs on /oldroot/run/user/0 type tmpfs (rw,nosuid,nodev,relatime,size=388004k,mode=700)
none on /oldroot/proc type proc (rw,relatime)
/dev/vda2 on / type xfs (rw,relatime,attr2,inode64,noquota)
none on /proc type proc (rw,relatime)
]0;root@8jmulupeazlhi2mu-1111669:/[root@unshare-bash /]# # 依旧能看到host上的信息
]0;root@8jmulupeazlhi2mu-1111669:/[root@unshare-bash /]# umount -a # umount全部
umount: can't unmount /: Resource busy
umount: can't unmount /oldroot: Resource busy
umount: can't unmount /: Resource busy
]0;root@8jmulupeazlhi2mu-1111669:/[root@unshare-bash /]# mount -t proc none /proc # 重新mount /proc
]0;root@8jmulupeazlhi2mu-1111669:/[root@unshare-bash /]# mount
rootfs on / type rootfs (rw)
/dev/vda2 on /oldroot type xfs (rw,relatime,attr2,inode64,noquota)
/dev/vda2 on / type xfs (rw,relatime,attr2,inode64,noquota)
none on /proc type proc (rw,relatime)
]0;root@8jmulupeazlhi2mu-1111669:/[root@unshare-bash /]# # oldroot 还在
]0;root@8jmulupeazlhi2mu-1111669:/[root@unshare-bash /]# umount -l oldroot/ # lazy umount
]0;root@8jmulupeazlhi2mu-1111669:/[root@unshare-bash /]# mount
rootfs on / type rootfs (rw)
/dev/vda2 on / type xfs (rw,relatime,attr2,inode64,noquota)
none on /proc type proc (rw,relatime)
]0;root@8jmulupeazlhi2mu-1111669:/[root@unshare-bash /]# # 挂在信息隔离完成[2P信息隔离完成载信息隔离完成入信息隔离完成[2P信息隔离完成
]0;root@8jmulupeazlhi2mu-1111669:/[root@unshare-bash /]# # step4: 为我们的容器添加网络
]0;root@8jmulupeazlhi2mu-1111669:/[root@unshare-bash /]# ping 8.8.8.8 # 配置网络前，网络显然是不通的
PING 8.8.8.8 (8.8.8.8): 56 data bytes
ping: sendto: Network unreachable
]0;root@8jmulupeazlhi2mu-1111669:/[root@unshare-bash /]# ifconfig -a
lo Link encap:Local Loopback
LOOPBACK MTU:65536 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
]0;root@8jmulupeazlhi2mu-1111669:/[root@unshare-bash /]# # 配置网络中..
]0;root@8jmulupeazlhi2mu-1111669:/[root@unshare-bash /]# ifconfig -a # 设置完之后回来看
c25087 Link encap:Ethernet HWaddr 4E:2C:5A:A5:93:48
BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
lo Link encap:Local Loopback
LOOPBACK MTU:65536 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
]0;root@8jmulupeazlhi2mu-1111669:/[root@unshare-bash /]# ip link set lo up
]0;root@8jmulupeazlhi2mu-1111669:/[root@unshare-bash /]# ip link set c11363 name eth0 up
ip: ioctl 0x8923 failed: No such device
]0;root@8jmulupeazlhi2mu-1111669:/[root@unshare-bash /]# ip link set c11363 name eth0 up[1P[1P[1P[1P[1P[1@2[1@5[1@0[1@8[1@7
]0;root@8jmulupeazlhi2mu-1111669:/[root@unshare-bash /]# # 为eth0设置一个随机的docker网段内的IP地址
]0;root@8jmulupeazlhi2mu-1111669:/[root@unshare-bash /]# ip addr add 172.17.42.3/16 dev eth0
]0;root@8jmulupeazlhi2mu-1111669:/[root@unshare-bash /]# # 配置默认路由走docker的默认网关
]0;root@8jmulupeazlhi2mu-1111669:/[root@unshare-bash /]# ip route add default via 172.17.0.1
]0;root@8jmulupeazlhi2mu-1111669:/[root@unshare-bash /]# ping 8.8.8.8
PING 8.8.8.8 (8.8.8.8): 56 data bytes
64 bytes from 8.8.8.8: seq=0 ttl=43 time=17.378 ms
64 bytes from 8.8.8.8: seq=2 ttl=43 time=17.341 ms
64 bytes from 8.8.8.8: seq=3 ttl=43 time=17.149 ms
64 bytes from 8.8.8.8: seq=4 ttl=43 time=17.168 ms
^C
--- 8.8.8.8 ping statistics ---
5 packets transmitted, 4 packets received, 20% packet loss
round-trip min/avg/max = 17.149/17.259/17.378 ms
]0;root@8jmulupeazlhi2mu-1111669:/[root@unshare-bash /]# chroot / /bo[K[Ksh
chroot: can't execute '/sh': No such file or directory
]0;root@8jmulupeazlhi2mu-1111669:/[root@unshare-bash /]# chroot /
chroot: can't execute '/bin/bash': No such file or directory
]0;root@8jmulupeazlhi2mu-1111669:/[root@unshare-bash /]# ls[K[Kchroot /[K/ bin/sh
/ # [6nl[Jl[J#chroot 切换到容器跟[Jrootfs
/ # [6nd[Jls
[1;34mbin[m [1;34mdev[m [1;34metc[m [1;34mhome[m [1;34mlib[m [1;34mmedia[m [1;34mmnt[m [1;34moldroot[m [1;34mopt[m [1;34mproc[m [1;34mroot[m [1;34mrun[m [1;34msbin[m [1;34msrv[m [1;34msys[m [1;34mtmp[m [1;34musr[m [1;34mvar[m
/ # [6nd[J# 容器创建完成
/ # [6n]0;root@8jmulupeazlhi2mu-1111669:/[root@unshare-bash /]# exit
]0;root@8jmulupeazlhi2mu-1111669:~/container[root@8jmulupeazlhi2mu-1111669 container]# exit
Script done on 2020年02月29日 星期六 21时00分32秒