CODEWITHSUNDEEP
dockerdocker-composecontainers
SamuraiJack
SamuraiJack

Reputation: 5539

Is it possible to create a docker image that just contains non executable files copied from host?

Is it possible to create an image of the contents of a folder on host. And later extract the content from image to the machine? If so how?

Here is my failed attempt:

Dockerfile

WORKDIR '/data'
COPY ./hostfolder .

Command executed:

docker build -t mydata .

Folder structure:

enter image description here

Error:

Sending build context to Docker daemon  3.584kB
Error response from daemon: No build stage in current context

Upvotes: 1

Views: 894

Answers (1)

DannyB
DannyB

Reputation: 14776

Yes, you can use a docker image as a place to store and then extract files.

First, you are missing a FROM directive in your Dockerfile. This is the reason for your error:

FROM alpine
WORKDIR '/data'
COPY . .

Then, to build the image:

$ docker build -t temp .

Then, to extract files, start the container:

$ docker run --detach --name data temp

and copy from the container to the host:

$ docker cp data:/data ./result

Upvotes: 2

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