Snapcraft distribution on Docker Hub can't handle stage-snaps

Lin-Buo-Ren · March 31, 2020, 3:49pm

Build log:

https://pastebin.ubuntu.com/p/t3ZVTng26X/

The problem seems to be in

snapcore/snapcraft/blob/e5aec72/snapcraft/internal/repo/snaps.py#L385


    slug = "snaps/{}".format(parse.quote(snap_name, safe=""))
    url = get_snapd_socket_path_template().format(slug)
    try:
        snap_info = requests_unixsocket.get(url)
    except exceptions.ConnectionError as e:
        raise errors.SnapdConnectionError(snap_name, url) from e
    snap_info.raise_for_status()
    return snap_info.json()["result"]
def _get_store_snap_info(snap_name):
    # This logic uses /v2/find returns an array of results, given that
    # we do a strict search either 1 result or a 404 will be returned.
    slug = "find?{}".format(parse.urlencode(dict(name=snap_name)))
    url = get_snapd_socket_path_template().format(slug)
    snap_info = requests_unixsocket.get(url)
    snap_info.raise_for_status()
    return snap_info.json()["result"][0]
def get_installed_snaps():

where Snapcraft tries to contact snapd via /run/snapd.socket, which is not available in the Docker container.

Warnings should be available regarding recipes that includes build-snaps and stage-snaps.