See Packages.
You can access http://localhost:54321 from the host OS with:
$ docker run -it -p 54321:54321 ghcr.io/codelibs/h2o:3.36.1.2To build docker images, run as below:
$ docker build --rm -t ghcr.io/codelibs/h2o:snapshot .To build it on release tag,
$ docker build --rm -t ghcr.io/codelibs/h2o:3.36.1.2 --build-arg GIT_BRANCH=jenkins-3.36.1.2 --build-arg BUILD_NUMBER=1 .