Docker Add every file in current directory

Question

I have a simple web application that I would like to place in a docker container. The angular application exists in the frontend/ folder, which is withing the application/ folder.

When the Dockerfile is in the application/ folder and reads as follows:

FROM node
ADD frontend/ frontend/
RUN (cd frontend/; npm install;)
CMD (cd frontend/; npm start;)

everything runs correctly.

However, when I move the Dockerfile into the frontend/ folder and change it to read

FROM node
ADD . frontend/
RUN (cd frontend/; npm install;)
CMD (cd frontend/; npm start;)

no files are copied and the project does not run.

How can I add every file and folder recursively in the current directory to my docker image?

ADD . / ./ all copy the current build context contents for me. What does your docker build command look like? — Matt
– Matt, Commented Feb 15, 2017 at 2:21
@Matt no luck with ADD . / ./, and my build command is sudo docker build -t testfrontend . in the frontend folder — iambicSam
– iambicSam, Commented Feb 15, 2017 at 12:21

iambicSam · Accepted Answer · 2017-02-15 12:53:35Z

14

The Dockerfile that ended up working was

FROM node
ADD . / frontend/
RUN (cd frontend/; npm install;)
CMD (cd frontend/; npm start;)

Shoutout to @Matt for the lead on . / ./, but I think the only reason that didn't work was because for some reason my application will only run when it is inside a directory, not in the 'root'. This might have something to do with @VonC's observation that the node image doesn't have a WORKDIR.

answered Feb 15, 2017 at 12:53

iambicSam

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1 Comment

VonC Over a year ago

Good feedback and more precise than my answer. +1. Did you try with a WORKDIR /?

VonC · Accepted Answer · 2017-02-15 05:43:29Z

2

First, try COPY just to test if the issue persists.

Second, make sure that no files are copied by changing your CMD to a ls frontend

I do not see a WORKDIR in node/7.5/Dockerfile, so frontend could be in /frontend: check ls /frontend too.

answered Feb 15, 2017 at 5:43

VonC

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