PLT-1362 feat(deploy): add subpath support for git-based helm charts

[uptickmetachu]

Motivation

Git-based helm charts currently assume the chart is at the root of the repository. Some repos contain multiple helm charts in subdirectories, requiring a subpath to be specified.

PLT-1362

Changes

• Added path attribute default for string chart definitions in Chart.__init__
• Modified deploy logic to append chart.path to the cloned repo directory for both helm dependency build and helm secrets upgrade commands
• Added test for git chart deployment with subpath

Usage in deployment.yml:

chart:
  type: git
  git_repo_url: https://github.com/org/repo
  git_sha: main
  path: charts/myapp  # optional subpath within the repo

Test plan

• Existing deploy tests pass (no regression)
• New test_deployer_git_with_subpath verifies correct path in helm commands
• Manual test with a real git repo containing a chart in a subdirectory

🤖 Generated with Claude Code

[github-actions]

Docker Images

Commit: 4016ee03424860ba72069b8be26309090c698dc9

Tag
610829907584.dkr.ecr.ap-southeast-2.amazonaws.com/gitops:test-4016ee0