Merge branch 'release_21.01' into release_21.05

    if resolution_cache is not None and cache_key in resolution_cache:

        repo_names = resolution_cache.get(cache_key)

    else:

        repos_parameters = {'public': 'true', 'namespace': namespace}

        repos_headers = {'Accept-encoding': 'gzip', 'Accept': 'application/json'}

        next_page = None

        repo_names = []

        repos_headers = {"Accept-encoding": "gzip", "Accept": "application/json"}

        while True:

            repos_parameters = {"public": "true", "namespace": namespace, "next_page": next_page}

            repos_response = requests.get(

                QUAY_REPOSITORY_API_ENDPOINT, headers=repos_headers, params=repos_parameters, timeout=MULLED_SOCKET_TIMEOUT)

        repos = repos_response.json()['repositories']

        repo_names = [r["name"] for r in repos]

            repos_response_json = repos_response.json()

            repos = repos_response_json["repositories"]

            repo_names += [r["name"] for r in repos]

            next_page = repos_response_json.get("next_page")

            if not next_page:

                break

        if resolution_cache is not None:

            resolution_cache[cache_key] = repo_names

    return repo_name in repo_names