Can't create a docker image for COPY failed: stat /var/lib/docker/tmp/docker-builder error
PythonDockerDockerfileDocker ImagePython Problem Overview
I want to create a docker image. This is my work directory: Dockerfile.in test.json test.py
And this is my Dockerfile:
COPY ./test.json /home/test.json
COPY ./test.py /home/test.py
RUN python test.py
When i launch this command:
docker build -f Dockerfile.in -t 637268723/test:1.0 .
It gives me this error:
`Step 1/5 : COPY ./test.json /home/test.json
---> Using cache
---> 6774cd225d60
Step 2/5 : COPY ./test.py /home/test.py
COPY failed: stat /var/lib/docker/tmp/docker-builder428014112/test.py:
no such file or directory`
Can anyone help me?
Python Solutions
Solution 1 - Python
You should put those files into the same directory with Dockerfile.
Solution 2 - Python
Check if there's a .dockerignore file, if so, add:
!mydir/test.json
!mydir/test.py
Solution 3 - Python
- Q1: Check your
.dockerignorefile in build path, the files or dir you want to copy may be in the ignore file list! - Q2: The COPY directive is based on the context in which you are building the image, so be aware of any problems with the directory where you are currently building the image! See: https://docs.docker.com/engine/reference/builder/#copy
Solution 4 - Python
I had to use the following command to start the build:
docker build .
Solution 5 - Python
Removing ./ from source path should resolve your issue:
COPY test.json /home/test.json
COPY test.py /home/test.py
Solution 6 - Python
I was also facing the same, I moved my docker file to root of the project. then it worked
Solution 7 - Python
Make sure the context you build your image with is set correctly. You can set the context when building as an argument.
Example:
docker build -f ./Dockerfile .. where '..' is the context in this example.
Solution 8 - Python
In my case, it was the comment line that was messing up the COPY command
I removed the comment after the COPY command and placed it to a dedicated line above the command. Surprisingly it resolved the issue.
Faulty Dockerfile command
COPY qt-downloader . # https://github.com/engnr/qt-downloader -> contains the script to auto download qt for different architectures and versions
Working Dockerfile command
# https://github.com/engnr/qt-downloader -> contains the script to auto download qt for different architectures and versions
COPY qt-downloader .
Hope it helps someone.
Solution 9 - Python
In your case removing ./ should solve the issue. I had another case wherein I was using a directory from the parent directory and docker can only access files present below the directory where Dockerfile is present so if I have a directory structure /root/dir and Dockerfile /root/dir/Dockerfile
I cannot copy do the following
COPY root/src /opt/src
Solution 10 - Python
This may help someone else facing similar issue.
Instead of putting the file floating in the same directory as the Dockerfile, create a dir and place the file to copy and then try.
COPY mydir/test.json /home/test.json
COPY mydir/test.json /home/test.json
Solution 11 - Python
Another potential cause is that docker will not follow symbolic links by default (i.e don't use ln -s).
Solution 12 - Python
I had such error while trying to build a docker image and push to the container registry. Inside my docker file I tried to copy a jar file from target folder and try to execute it with java -jar
I was solving the issue by removing .jar file and target folder from .gitignore file.
Solution 13 - Python
When using the Docker compose files, publish, publishes to obj/Docker/Publish. When I copied my files there and pointed my Dockerfile to this directory (as generated), it works…
Solution 14 - Python
The following structure in docker-compose.yaml will allow you to have the Dockerfile in a subfolder from the root:
version: '3'
services:
db:
image: postgres:11
environment:
- PGDATA=/var/lib/postgresql/data/pgdata
volumes:
- postgres-data:/var/lib/postgresql/data
ports:
- 127.0.0.1:5432:5432
**web:
build:
context: ".."
dockerfile: dockerfiles/Dockerfile**
command: ...
...
Then, in your Dockerfile, which is in the same directory as docker-compose.yaml, you can do the following:
ENV APP_HOME /home
RUN mkdir -p ${APP_HOME}
# Copy the file to the directory in the container
COPY test.json ${APP_HOME}/test.json
COPY test.py ${APP_HOME}/test.py
# Browse to that directory created above
WORKDIR ${APP_HOME}
You can then run docker-compose from the parent directory like:
docker-compose -f .\dockerfiles\docker-compose.yaml build --no-cache
Solution 15 - Python
The way docker look for file is from the current directory i.e. if your command is
> COPY target/xyz.jar app.jar > > ADD target/xyz.jar app.jar
The xyz jar should be in the current/target directory - here current is the place where you have your docker file. So if you have docker in a different dir. its better bring to main project directory and have a straight path to the jar being added or copied to the image.
Solution 16 - Python
I had the same issue with a .tgz file .
It was just about the location of the
Also ensure the .dockerignore file directory doesn't exclude the
Solution 17 - Python
In my case, I had to put all my project files into a subdirectory
app -|inside app directory we have the following
| package.js
| src
| assets
Dockerfile
Then I copied files in his way
COPY app ./
Solution 18 - Python
In my case the solution was to place file in a directory and copy whole directory content with one command, instead of copying a single file:
COPY --chown=1016:1016 myfiles /home/myapp/myfiles
Solution 19 - Python
Here is the reason why it happens, i.e. your local directory in the host OS where you are running the docker should have the file, otherwise you get this error
One solution is to :
use RUN cp <src> <dst> instead of
COPY <src> <dst>
then run the command it works!
Solution 20 - Python
<plugin>
<groupId>io.fabric8</groupId>
<artifactId>docker-maven-plugin</artifactId>
<configuration>
<images>
<image>
<name>imagenam</name>
<alias>dockerfile</alias>
<build>
<!-- filter>@</filter-->
<dockerFileDir>dockerfile loaction</dockerFileDir>
<tags>
<tag>latest</tag>
<tag>0.0.1</tag>
</tags>
</build>
<run>
<ports>
<port>8080:8080</port>
</ports>
</run>
</image>
</images>
</configuration>
</plugin>