Lab6 - University report

This task is about cloning app files from previous repository instead of copying them from machne.

Preparation

First of all you will need buildctl, if you don't have it, you can download it from https://github.com/moby/buildkit/releases/tag/v0.13.1.
On linux based system after extracting tar.gz copy content of bin folder to your /bin/ path, example:
If you're in bin folder:

cp ./* /bin/

Now check if installation is successful by typing in terminal:

buildctl

Building process

Next step is to run buildkit in a container:

docker run -d --name buildkitd --privileged moby/buildkit:latest

After that you need to point out the default host to variable BUILDKIT_HOST:

export BUILD_HOST=docker-container://buildkitd

One before last step is build an image with buildctl:

buildctl build --frontend=dockerfile.v0 --ssh default=$SSH_AUTH_SOCK --local context=. --local dockerfile=. --opt build-arg:VERSION=1.0.0 --output type=image,name=ghcr.io/sawyyy/pawcho6:lab6,push=true

Last step - starting container:

docker run -d --rm -p 80:80 --name app ghcr.io/sawyyy/pawcho6:lab6

Testing

After running containter you can test if it's working by typing in terminal (if you have curl installed):

curl http://localhost:80

Or just put:

http://localhost:80

In your web browser

Disclaimer

If you encounter an error:

error: listing workers for Build: failed to list workers: Unavailable: connection error: desc = "error reading server preface: command [docker exec -i buildkitd buildctl dial-stdio] has exited with exit status 1, please make sure the URL is valid, and Docker 18.09 or later is installed on the remote host: stderr=Error response from daemon: No such container: buildkitd\n"

Check if name of buildkit container is same as name at the end of export command

Also make sure if port 80 isn't already allocated, otherway you change it in docker run command