How to copy file from host to container using Dockerfile

Question

I have written a Dockerfile which looks like this  FROM ubuntu 12 04  RUN apt-get update RUN apt-get install -y wget   Now I m having a file called abc txt in my host machine  How can I copy it to this container  Is there any step that I can add in Dockerfile which copy from Host to Container

User · Answer

I faced this issue  I was not able to copy zeppelin  1GB  directory into docker container and was 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 the issue with the 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

User · Answer

you can use either the ADD command https   docs docker com engine reference builder   add or the COPY command https   docs docker com engine reference builder   copy

User · Answer

For those who get this  terribly unclear  error      COPY failed  stat  var lib docker tmp docker-builderXXXXXXX abc txt  no such file or directory   There could be loads of reasons  including    For docker-compose users  remember that the docker-compose yml context overwrites the context of the Dockerfile  Your COPY statements now need to navigate a path relative to what is defined in docker-compose yml instead of relative to your Dockerfile  Trailing comments or a semicolon on the COPY line  COPY abc txt  app   This won t work The file is in a directory ignored by  dockerignore or  gitignore files  be wary of wildcards  You made a typo   Sometimes WORKDIR  abc followed by COPY   xyz  works where COPY  abc xyz  fails  but it s a bit ugly

User · Answer

I was able to copy a file from my host to the container within a dockerfile as such    Created a folder on my c driver --  c  docker Create a test file in the same folder --  c  docker test txt Create a docker file in the same folder --  c  docker dockerfile The contents of the docker file as follows to copy a file from local host to the root of the container     FROM ubuntu 16 04  COPY test txt   Pull a copy of ubuntu from docker hub --  docker pull ubuntu 16 04 Build the image from the dockerfile --   docker build -t myubuntu c  docker  Build the container from your new image myubuntu --  docker run -d -it --name myubuntucontainer myubuntu   sbin init   Connect to the newly created container -- docker exec -it myubuntucontainer bash Check if the text txt file is in the root --  ls    You should see the file

User · Answer

I got the following error using Docker 19 03 8 on CentOS 7   COPY failed  stat  var lib docker tmp docker-builderXXXXXXX abc txt  no such file or directory   The solution for me was to build from Docker file with docker build   instead of docker build -  lt  Dockerfile

User · Answer

Use COPY command like this   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   read more details for COPY in the official documentation  An alternative would be to use ADD but this is not the best practise if you dont want to use some advanced features of ADD like decompression of tar gz files If you still want to use ADD command  do it like this   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   read more details for ADD in the official documentation

User · Answer

If you want to copy the current dir s contents  you can run  docker build  -t  lt imagename tag gt  -f-     lt  Dockerfile

[docker] How to copy file from host to container using Dockerfile

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