Question

每当我尝试通过Docker容器使用卷时，最终都会得到一个空文件夹。我正在使用minikube努力找出正在发生的事情。

起初，我认为可能是由于文件夹位于不同的分区上，因此有些奇怪的权限或挂载选项。

不幸的是，这似乎并不容易。即使挂载/tmp，我也可以复制它。阅读以下部分。

我还认为，鉴于minikube在VirtualBox之上运行，我需要在此共享该文件夹。没有改变结果。

命令

我正在使用这个小脚本对其进行测试。

mkdir -p /tmp/foo
touch /tmp/foo/foo
docker run --entrypoint "/bin/ls" --rm -ti --net=host -v "/tmp/foo:/bar" yikaus/alpine-bash -lha /bar

结果是一个空文件夹

drwxr-xr-x    2 root     root          40 Sep 19 13:42 .
drwxr-xr-x    1 root     root        4.0K Sep 19 13:43 ..

权限

ll -d /tmp/
drwxrwxrwt 18 root root 2940 Sep 19 15:46 /tmp/

15:47 $ ll -d /tmp/foo/
drwxr-xr-x 2 raffaele raffaele 60 Sep 19 15:46 /tmp/foo/

Docker

版本

docker --version
Docker version 18.09.8, build 00dd43dd

包含docker --info的信息

Containers: 36
 Running: 26
 Paused: 0
 Stopped: 10
Images: 33
Server Version: 18.06.3-ce
Storage Driver: overlay2
 Backing Filesystem: extfs
 Supports d_type: true
 Native Overlay Diff: true
Logging Driver: json-file
Cgroup Driver: cgroupfs
Plugins:
 Volume: local
 Network: bridge host macvlan null overlay
 Log: awslogs fluentd gcplogs gelf journald json-file logentries splunk syslog
Swarm: inactive
Runtimes: runc
Default Runtime: runc
Init Binary: docker-init
containerd version: 468a545b9edcd5932818eb9de8e72413e616e86e
runc version: N/A (expected: a592beb5bc4c4092b1b1bac971afed27687340c5)
init version: N/A (expected: )
Security Options:
 seccomp
  Profile: default
Kernel Version: 4.15.0
Operating System: Buildroot 2018.05
OSType: linux
Architecture: x86_64
CPUs: 4
Total Memory: 3.84GiB
Name: minikube
ID: 3BHX:6UKW:L5YR:TOSA:QKDD:YUKF:4POD:IMY7:CBCM:DCG2:G5A3:2JD2
Docker Root Dir: /var/lib/docker
Debug Mode (client): false
Debug Mode (server): false
Registry: https://index.docker.io/v1/
Labels:
 provider=virtualbox
Experimental: false
Insecure Registries:
 10.96.0.0/12
 127.0.0.0/8
Live Restore Enabled: false

Fstab

/ etc / fstab

/dev/sda5               /               jfs             noatime         0 1
/dev/sda7               /data           jfs             users,exec,noatime,umask=0022   0 1

系统

Linux shangrila 4.14.52-gentoo＃1 SMP Fri Mar 15 15:33:01 CET 2019 x86_64 Intel（R）Core（TM）i5-6200U CPU @ 2.30GHz纯正英特尔GNU / Linux

Env

XTERM_256_COLORS=1
XDG_MENU_PREFIX=e-
E_START_MANAGER=1
LANG=en_GB.utf8
GDM_LANG=en_GB.utf8
QT_GRAPHICSSYSTEM=raster
LESS=-R -M --shift 5
DISPLAY=:0.0
OPENGL_PROFILE=xorg-x11
QT_STYLE_OVERRIDE=gtk2
E_DATA_DIR=/usr/share/enlightenment
__GIT_PROMPT_SHOW_UPSTREAM=
CONFIG_PROTECT_MASK=/etc/sandbox.d /etc/fonts/fonts.conf /etc/gentoo-release /etc/gconf /etc/terminfo /etc/dconf /etc/ca-certificates.conf /etc/texmf/web2c /etc/texmf/language.dat.d /etc/texmf/language.def.d /etc/texmf/updmap.d /etc/revdep-rebuild
EDITOR=/usr/bin/vi
E_BIN_DIR=/usr/bin
JAVA_HOME=/home/raffaele/.gentoo/java-config-2/current-user-vm
E_PREFIX=/usr
GCC_SPECS=
XDG_VTNR=7
VIRTUAL_ENV=/data/work/<redacted>/venv2
PANTS=ON
E_TAINTED=NO
MOZ_USE_XINPUT2=1
VTK_DIR=/usr/lib64/vtk-7.1
XDG_SESSION_ID=2
XDG_GREETER_DATA_DIR=/var/lib/lightdm-data/raffaele
VBOX_APP_HOME=/usr/lib64/virtualbox
USER=raffaele
PAGER=/usr/bin/less
DESKTOP_SESSION=enlightenment
TERMINOLOGY=1
DOCKER_CERT_PATH=/home/raffaele/.minikube/certs
QT_QPA_PLATFORMTHEME=gtk2
PWD=/data/work/<redacted>
SSH_ASKPASS=/usr/bin/enlightenment_askpass
HOME=/home/raffaele
MANPAGER=manpager
__GIT_PROMPT_IGNORE_STASH=
ITK_DATA_ROOT=/usr/share/itk/data
__GIT_PROMPT_SHOW_UNTRACKED_FILES=all
XDG_SESSION_TYPE=x11
GSETTINGS_BACKEND=dconf
XDG_DATA_DIRS=/usr/share/enlightenment:/usr/local/share:/usr/share
USE_CCACHE=1
JDK_HOME=/home/raffaele/.gentoo/java-config-2/current-user-vm
XDG_SESSION_DESKTOP=enlightenment
E_IPC_SOCKET=/run/user/1000/e-raffaele@0/4502
E_LIB_DIR=/usr/lib64
E_LOCALE_DIR=/usr/share/locale
GTK_MODULES=canberra-gtk-module
E_START_TIME=1568876560.1
E_ICON_THEME=hicolor
DOCKER_TLS_VERIFY=1
MAIL=/var/mail/raffaele
__GIT_PROMPT_SHOW_CHANGED_FILES_COUNT=1
VTK_DATA_ROOT=/usr/share/vtk/data
CONFIG_PROTECT=/usr/share/maven-bin-3.3/conf /usr/share/maven-bin-3.6/conf /usr/share/gnupg/qualified.txt /usr/share/config
TERM=xterm-256color
SHELL=/bin/bash
DOCKER_HOST=tcp://192.168.99.100:2376
XDG_SESSION_CLASS=user
XDG_SEAT_PATH=/org/freedesktop/DisplayManager/Seat0
JAVAC=/home/raffaele/.gentoo/java-config-2/current-user-vm/bin/javac
XDG_CURRENT_DESKTOP=Enlightenment
E_SCALE=1.200
E_RESTART=1
XDG_SEAT=seat0
SHLVL=1
GIT_BRANCH=<REDACTED>
VTKHOME=/usr
MANPATH=/home/raffaele/.gentoo/java-config-2/current-user-vm/man:/usr/share/gcc-data/x86_64-pc-linux-gnu/6.4.0/man:/usr/share/binutils-data/x86_64-pc-linux-gnu/2.30/man:/usr/lib/llvm/7/share/man:/usr/lib/llvm/6/share/man:/usr/lib/llvm/5/share/man:/etc/java-config-2/current-system-vm/man/:/usr/lib64/php7.2/man/:/usr/lib64/php7.3/man/:/usr/local/share/man:/usr/share/man:/usr/share/rust-1.34.2/man
SUDO_ASKPASS=/usr/bin/enlightenment_askpass
WINDOWID=8388625
GDMSESSION=enlightenment
E_CONF_PROFILE=standard
LOGNAME=raffaele
DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/1000/bus
DESKTOP=Enlightenment
XDG_RUNTIME_DIR=/run/user/1000
XAUTHORITY=/home/raffaele/.Xauthority
ANT_HOME=/usr/share/ant
DOCKER_API_VERSION=1.35
XDG_SESSION_PATH=/org/freedesktop/DisplayManager/Session0
XDG_CONFIG_DIRS=/usr/etc/xdg:/etc/xdg
PATH=/data/work/<redacted>/venv2/bin:/home/raffaele/Applications/.bin:/home/raffaele/.cargo/bin:/usr/lib/llvm/7/bin:/usr/lib/llvm/6/bin:/usr/lib/llvm/5/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/opt/bin:/usr/games/bin:/home/raffaele/.local/bin
PS1=(\[\033[0;34m\]venv2\[\033[0;0m\]) \[\033[0;31m\]✘-1\[\033[0;0m\] \[\033[0;33m\]\w\[\033[0;0m\] [\[\033[0;35m\]feature/TIQ04-16183\[\033[0;0m\]|\[\033[0;34m\]✚ 6407\[\033[0;0m\]\[\033[0;36m\]…24938\[\033[0;0m\]\[\033[0;0m\]] \n\[\033[0;37m\]$(date +%H:%M)\[\033[0;0m\] $
INFOPATH=/usr/share/gcc-data/x86_64-pc-linux-gnu/6.4.0/info:/usr/share/binutils-data/x86_64-pc-linux-gnu/2.30/info:/usr/share/info
E_START=/usr/bin/enlightenment_start
LESSOPEN=|lesspipe %s
_=/usr/bin/env

Answer 1

您的docker主机似乎正在VM内部运行，如以下变量所示：

DOCKER_HOST=tcp://192.168.99.100:2376

您最有可能看到的是该VM内的目录，并希望在您的父桌面上看到它们。

将主机文件装载到容器中时，这些文件必须位于该VM内的目录中，或者该VM需要将该目录从您的桌面环境共享到该VM中。配置到VM的目录共享将特定于VM工具。专门针对Minikube，有以下documentation。

这将指导您运行/tmp/foo目录的以下内容：

minikube mount /tmp/foo:/tmp/foo

Docker卷挂载为空

命令

权限

Docker

Fstab

系统

Env

1 个答案: