From 625b142ed44d5c53214b7263e8811a0d2142d581 Mon Sep 17 00:00:00 2001
From: jakeross <jirhiker@gmail.com>
Date: Tue, 18 Aug 2026 16:30:30 -0700
Subject: [PATCH] chore(ci): keep .git out of the Dagster+ build context

Every deploy was transferring 316 MB before the first layer could build. The
tracked tree is 13 MB; the rest was almost entirely .git, which CI clones with
full history and which nothing in the image reads. The context is now 6.7 MB.

Also excluded: Python caches, which are worse than useless in an image built on
a pinned base; test fixtures and BDD features, since the image runs the code
location and CI runs the suite outside it; and transfers/data, logs, and
metrics, which are untracked, machine-specific, and roughly 900 MB on a
developer checkout -- a local `docker build` was shipping all of it.

Verified by building the real image with the new context: db, domain, services,
core, schemas, automated_ingestion, and alembic are all present, db and domain
import, and the code location resolves all four assets.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
---
 .dockerignore | 46 +++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 45 insertions(+), 1 deletion(-)

diff --git a/.dockerignore b/.dockerignore
index b694934fb..95b01de27 100644
--- a/.dockerignore
+++ b/.dockerignore
@@ -1 +1,45 @@
-.venv
\ No newline at end of file
+# Keep the build context to what the image actually runs.
+#
+# The tracked tree is ~13 MB; the context was ~316 MB, almost entirely .git.
+# CI clones full history, and every Dagster+ deploy was transferring it before
+# the first layer could build.
+
+# Version control. Nothing in the image reads git metadata.
+.git
+.github
+.gitignore
+
+# Python build and cache artifacts. Stale .pyc from a different interpreter is
+# worse than useless in an image built on a pinned base.
+__pycache__/
+*.py[cod]
+*.egg-info/
+.pytest_cache/
+.ruff_cache/
+.mypy_cache/
+.coverage
+htmlcov/
+
+# Virtualenvs and local tooling state.
+.venv
+.dg
+*.tfstate
+*.tfstate.*
+.terraform/
+
+# Local-only data from legacy transfer runs. Untracked, machine-specific, and
+# the largest thing on a developer checkout by an order of magnitude -- a local
+# `docker build` would otherwise ship ~900 MB of CSV cache.
+transfers/data/
+transfers/logs/
+transfers/metrics/
+
+# Test fixtures and BDD features. The image runs the code location, not the
+# suite; CI runs the suite outside the image.
+tests/
+features/
+
+# Editor and OS noise.
+.DS_Store
+.idea/
+.vscode/