0

I want to download and install a github repository inside a docker container. My strategy is to create a docker image from a Dockerfile, which works fine if I installed an repository without submodules. The Dockerfile:

FROM ubuntu:20.04
RUN apt-get update && apt-get install -y git
RUN mkdir /home/example && cd /home/example && git clone https://github.com/example/example.git
RUN cd /home/example/example && python3 setup install

When I want to use submodules

RUN cd /home/example/example && git submodule update --init --recursive

I get the Error Host key veriffication failed fatal: Could not read from remote repisitory. Plead make scure you have the correct access rights

#0 0.705 Please make sure you have the correct access rights
#0 0.705 and the repository exists.
#0 0.708 fatal: clone of 'git@github.com:example/example.git' into submodule path '/home/example/example/third_party/exampleLib' failed
#0 0.708 Failed to clone 'third_party/exampleLib'. Retry scheduled
#0 0.714 Cloning into '/home/example/example/third_party/otherLib'...
#0 1.160 Host key verification failed.
#0 1.162 fatal: Could not read from remote repository.

When I try to install the submoduls direct in the docker container with the command:

root@<containerid>:/home/example/example# git submodule update --init --recursive

I get the error

git@github.com: Permission denied (publickey).
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.

Why I can download the repository but not the submodules? -> All submodules are public! Is it possible to add all ssh informations from the local git to use it for cloning inside the docker container?

Mr T
  • 53
  • 6
  • 1
    These are all ssh issues, none are Git issues. You have some options, including these: (1) set up ssh within the docker image (e.g., use ssh-keyscan to make the host known, install ssh keys as needed, etc). (2) Use https within the docker image, so that you don't need to set up ssh: this works for all-public repositories. (3) Do all the cloning *outside* the container (this is often the best approach but may be unsuitable for your particular case). – torek Nov 30 '22 at 16:17

0 Answers0