fix: check if tsuru.yaml has process commands before fallbacking to i…

[ravilock]

…mage command

[Copilot]

Pull Request Overview

Adds logic to prefer processes defined in tsuru.yaml over falling back to a platform Procfile/command, and introduces tests and testdata for this behavior.

• Parse tsuru.yaml to detect defined processes and only fallback when both Procfile and tsuru.yaml processes are absent.
• Add end-to-end test and Python app test data to validate tsuru.yaml hooks, processes, package installs, and Python version.
• Switch YAML dependency to sigs.k8s.io/yaml and update Go/toolchain and several module versions.

Reviewed Changes

Copilot reviewed 8 out of 9 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
pkg/build/buildkit/build.go	Adds tsuru.yaml process check, swaps YAML lib, adjusts permissions notation.
pkg/build/buildkit/build_test.go	Renames existing test and adds new integration test for user-defined tsuru.yaml.
pkg/build/buildkit/testdata/python-tsuru-yaml/tsuru.yaml	Provides tsuru.yaml with build hooks and a web process for testing.
pkg/build/buildkit/testdata/python-tsuru-yaml/requirements.txt	Python requirements for the test app.
pkg/build/buildkit/testdata/python-tsuru-yaml/requirements.apt	System packages for the test app.
pkg/build/buildkit/testdata/python-tsuru-yaml/app.py	Minimal Flask app used in tests.
pkg/build/buildkit/testdata/python-tsuru-yaml/hook.py	Auxiliary test script.
go.mod	Updates Go/toolchain and dependencies, adds tsuru/types and sigs.k8s.io/yaml.

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[fbtravi]

Hi @ravilock

This change covers the case where we have a tsuru.yaml file defined with processes, and the process does not have a start command.

processes:
  - name: web
    # Using the command from the Dockerfile
    command: npm start
    healthcheck:
      path: /health
      scheme: http
      allowed_failures: 3
      force_restart: true
      interval_seconds: 60
      timeout_seconds: 60
      deploy_timeout_seconds: 600

[crgisch]

LGTM 👍

Would be nice to add on README how to run/test locally using new Makefile commands :)