Poetry does not install packages in docker entrypoint when tty is activated

[hochstibe]

• Poetry version: 1.5.1
• Python version: 3.10.12 (slim-buster image)
• OS version and name: Debian GNU/Linux 10 (buster)
• pyproject.toml: pyproject.toml

• I am on the latest stable Poetry version, installed using a recommended method.
• I have searched the issues of this repo and believe that this is not a duplicate.
• I have consulted the FAQ and blog for any relevant entries or release notes.
• If an exception occurs when executing a command, I executed it again in debug mode (-vvv option) and have included the output below.

Issue

I need to install some dependencies in the entrypoint of my docker container. The main dependencies are installed when building the image, some additional packages (groups) are installed later. For a colored logging output, I activated tty: true in my docker-compose.

Problem:
poetry install in a docker entrypoint script does not install the packages. It detects, that some packages need to be installed (Package operations: 3 installs, 0 updates, 0 removals), but it does not install them. There is no error message (even not in verbose mode). poetry show lists them as red.
Entering the running container, it is possible to install the missing packages.

When deactivating tty (default) in docker-compose, it installs the packages in the entrypoint.

To reproduce, i set up a repository with

• pyproject.toml
• dockerfile
• entrypoint
• docker-compose

Running docker-compose up -d --build and checking the logs of the 2 containers (docker compose logs test_poetry1 tty with failed install and docker compose logs test_poetry2 with correct install)

[dimbleby]

presumably duplicate #7184

[hochstibe]

Setting the --no-ansi flag in the entrypoint solves the problem (as written in #7184 )

[github-actions]

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