This is a small Node.js app for automating creation of Dockerfiles that can
be used to build containers which can be used for remote debugging native apps
from Visual Studio using the Visual C++ for Linux Development extension. To run the app do
the following:
Now open a terminal and run the following from the folder where you cloned the repo:
$ yarn
$ node app.js
This will produce output that looks like this:
$ node app.js
[*] Reading Dockerfile template.
[*] Creating output folder C:\code\docker-linux-dev-image\output\HyoI9qTUe.
[*] Generating new keypair.
[*] Saving private key file.
[*] Saving public key file.
[*] Generating Dockerfile.
> The SSH keys and Dockerfile are in the folder C:\code\docker-linux-dev-image\output\HyoI9qTUe.
The generated Dockerfile along with SSH keys is dropped into the output
folder. CD into the output folder and build the Docker image the usual way:
$ cd output/HyoI9qTUe
$ docker build -t vsdebug .
If everything goes well you'll find the newly minted image in your Docker engine. Now to run a container from this image you'd run the following command:
docker run -d -p 2222:22 --security-opt seccomp:unconfined vsdebug
This will spin a container up with an SSH server listening on local port 2222.
You can test this out by SSHing to this server like so:
$ cd output/HyoI9qTUe
$ ssh -i id_rsa -p 2222 root@localhost
Now you should be able to remote debug your Linux apps form Visual Studio as documented in this blog post.