如何使用Dockerfile将文件从主机复制到容器

我写了一个Dockerfile，看起来像这样

FROM ubuntu:12.04 RUN apt-get update RUN apt-get install -y wget 

现在我在主机中有一个名为abc.txt的文件。 我怎样才能把它复制到这个容器。 是否有任何步骤，我可以在Dockerfile中添加从主机复制到容器。

Answer 1

像这样使用COPY命令：

 COPY foo.txt /data/foo.txt # where foo.txt is the relative path on host # and /data/foo.txt is the absolute path in the image 

在官方文档中阅读COPY的更多细节

另一种方法是使用ADD，但如果您不想使用ADD的某些高级function（如tar.gz文件的解压缩），则这不是最佳做法。如果您仍想使用ADD命令，请执行下列操作：

 ADD abc.txt /data/abc.txt # where abc.txt is the relative path on host # and /data/abc.txt is the absolute path in the image 

在官方文档中阅读ADD的更多细节

Answer 2

您可以使用ADD命令https://docs.docker.com/engine/reference/builder/#/add或COPY命令https://docs.docker.com/engine/reference/builder/#/copy

Answer 3

 I faced this issue, I was not able to copy zeppelin [1GB] directory into docker conatiner. and getting issue "COPY failed: stat /var/lib/docker/tmp/docker-builder977188321/zeppelin-0.7.2-bin-all: no such file or directory" I am using docker Version: 17.09.0-ce and resolved issue by following steps. Step 1: copy zeppelin directory [which i want to copy into docker package]into directory contain "Dockfile" Step 2: edit Dockfile and add command [location where we want to copy] ADD ./zeppelin-0.7.2-bin-all /usr/local/ Step 3: go to directory which contain DockFile and run command [alternatives also available] docker build . Step 4: docker image created Successfully with logs Step 5/9 : ADD ./zeppelin-0.7.2-bin-all /usr/local/ ---> 3691c902d9fe Step 6/9 : WORKDIR $ZEPPELIN_HOME ---> 3adacfb024d8 .... Successfully built b67b9ea09f02