Create a marker file

имя: marker
образ: python:3.12-slim
таймаут: 30с

проверка…

Задание

Marker file

Create a file at /tmp/target.txt containing exactly the word hello
(no trailing newline, no extra whitespace).

Why

This is the simplest lab that exercises the full pipeline:
isolated container → student changes file system state → checker validates
state → feedback is returned.

How to verify locally

docker run --rm -it python:3.12-slim bash
# inside the container:
echo -n hello > /tmp/target.txt

Подсказки

Hints: marker file

echo -n hello > /tmp/target.txt writes the word hello without a trailing
newline. Drop -n and the file will contain hello\n and the check will
fail on the trailing whitespace.
The check reads the file and strips surrounding whitespace, but the content
between must be exactly the expected word.
If you see "file does not exist", confirm the path is /tmp/target.txt
(lowercase, no extension other than .txt).

Последние попытки

Загрузка…

Разовый запуск (smoke-тест)

Атомарный цикл up → check → down. Полезно для CI; без предварительной подготовки состояния проверка завершится с ошибкой.