Docker不想将vim安装到我的容器映像中
在我的Dockerfile我有一行：
RUN apt-get -qq update && apt-get install -y -qq --no-install-recommends vim
Docker在构build容器映像时运行它：
$ docker build . Sending build context to Docker daemon 31.74 kB Step 1 : FROM node ---> 2647b0da972f Step 2 : MAINTAINER jillix <support@jillix.com> ---> Using cache ---> 06aad06901af Step 3 : ENV DEBIAN_FRONTEND noninteractive ---> Using cache ---> d4f2c77d2fa1 Step 4 : RUN apt-get -qq update && apt-get install -y -qq --no-install-recommends vim ---> Running in 263680fcd78f debconf: delaying package configuration, since apt-utils is not installed Selecting previously unselected package libgpm2:amd64. (Reading database ... 21065 files and directories currently installed.) Preparing to unpack .../libgpm2_1.20.4-6.1+b2_amd64.deb ... Unpacking libgpm2:amd64 (1.20.4-6.1+b2) ... Selecting previously unselected package vim-common. Preparing to unpack .../vim-common_2%3a7.4.488-7_amd64.deb ... Unpacking vim-common (2:7.4.488-7) ... Selecting previously unselected package vim-runtime. Preparing to unpack .../vim-runtime_2%3a7.4.488-7_all.deb ... Adding 'diversion of /usr/share/vim/vim74/doc/help.txt to /usr/share/vim/vim74/doc/help.txt.vim-tiny by vim-runtime' Adding 'diversion of /usr/share/vim/vim74/doc/tags to /usr/share/vim/vim74/doc/tags.vim-tiny by vim-runtime' Unpacking vim-runtime (2:7.4.488-7) ... Selecting previously unselected package vim. Preparing to unpack .../vim_2%3a7.4.488-7_amd64.deb ... Unpacking vim (2:7.4.488-7) ... Processing triggers for mime-support (3.58) ... Processing triggers for hicolor-icon-theme (0.13-1) ... Setting up libgpm2:amd64 (1.20.4-6.1+b2) ... Setting up vim-common (2:7.4.488-7) ... Setting up vim-runtime (2:7.4.488-7) ... Processing /usr/share/vim/addons/doc Setting up vim (2:7.4.488-7) ... update-alternatives: using /usr/bin/vim.basic to provide /usr/bin/vim (vim) in auto mode update-alternatives: using /usr/bin/vim.basic to provide /usr/bin/vimdiff (vimdiff) in auto mode update-alternatives: using /usr/bin/vim.basic to provide /usr/bin/rvim (rvim) in auto mode update-alternatives: using /usr/bin/vim.basic to provide /usr/bin/rview (rview) in auto mode update-alternatives: using /usr/bin/vim.basic to provide /usr/bin/vi (vi) in auto mode update-alternatives: using /usr/bin/vim.basic to provide /usr/bin/view (view) in auto mode update-alternatives: using /usr/bin/vim.basic to provide /usr/bin/ex (ex) in auto mode update-alternatives: using /usr/bin/vim.basic to provide /usr/bin/editor (editor) in auto mode Processing triggers for libc-bin (2.19-18+deb8u1) ... ---> 0b46f93ada63 ...
但是当我运行我的容器，vim没有安装：
root@db969727026f:/app# vim bash: vim: command not found
如果我在容器中运行相同的apt-get命令，则会安装vim（这也显示了Docker没有）。
我究竟做错了什么？ 或者可能是Docker？