chore: optimize Dockerfile for quicker builds#4418
Open
cemreinanc wants to merge 2 commits intomainfrom
Open
Conversation
- Added a new build stage for collecting Django static files in parallel with the frontend build. - Updated file copying commands to set ownership for the application files.
cemreinanc
temporarily deployed
to
testing_env
GitHub Actions
Inactive
cemreinanc
temporarily deployed
to
testing_env
GitHub Actions
Inactive
Contributor
📝 WalkthroughWalkthroughRestructures the Dockerfile to add a Changes
Sequence Diagram(s)sequenceDiagram
autonumber
participant Dev as "Dev / CI"
participant Frontend as "frontend build stage"
participant BackendStatic as "backend_static (collectstatic)"
participant Final as "final image stage"
Dev->>Frontend: start frontend build (assets)
Dev->>BackendStatic: run Django collectstatic (pre-collect static)
Frontend-->>Final: copy built frontend assets (--chown=1001:0)
BackendStatic-->>Final: copy collected static files (--chown=1001:0)
Dev->>Final: copy source & deps with --chown=1001:0 and switch to USER 1001
Note right of Final: Final image contains pre-built assets and non-root user
Estimated code review effort🎯 4 (Complex) | ⏱️ ~50 minutes Possibly related PRs
Suggested reviewers
Poem
🚥 Pre-merge checks | ✅ 2✅ Passed checks (2 passed)
✏️ Tip: You can configure your own custom pre-merge checks in the settings. ✨ Finishing Touches🧪 Generate unit tests (beta)
Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out. Comment |
![coderabbitai[bot]](https://avatars.githubusercontent.com/in/347564?s=60&v=4){kind=small}
Contributor
There was a problem hiding this comment.
🧹 Nitpick comments (1)
Dockerfile (1)
58-58: Consider copying only the files needed forcollectstaticto improve cache hit rates.
COPY . /app/pulls in the entire build context (including frontend source, docs, etc.), so any file change — even a frontend-only change — busts the cache for this stage. Since the goal is only to runcollectstatic, you could narrow the copy to Python/Django files. That said, since this stage runs in parallel with the frontend build, the wall-clock impact is minimal.🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed. In `@Dockerfile` at line 58, The Dockerfile currently uses COPY . /app/ which pulls the whole build context and busts cache for the collectstatic stage; replace this with a minimal copy of only the files needed to run collectstatic (e.g., COPY requirements.txt /app/ and install deps, then COPY manage.py, your Django package folders (e.g., myapp/, settings/, urls/), templates/ and static/ into /app/) or add a .dockerignore to exclude frontend/, docs/, node_modules/; update the Dockerfile stage that runs collectstatic (the step referencing COPY . /app/) to use those targeted COPY lines so cache is preserved and collectstatic runs with only Python/Django sources.
🤖 Prompt for all review comments with AI agents
Verify each finding against the current code and only fix it if needed.
Nitpick comments:
In `@Dockerfile`:
- Line 58: The Dockerfile currently uses COPY . /app/ which pulls the whole
build context and busts cache for the collectstatic stage; replace this with a
minimal copy of only the files needed to run collectstatic (e.g., COPY
requirements.txt /app/ and install deps, then COPY manage.py, your Django
package folders (e.g., myapp/, settings/, urls/), templates/ and static/ into
/app/) or add a .dockerignore to exclude frontend/, docs/, node_modules/; update
the Dockerfile stage that runs collectstatic (the step referencing COPY . /app/)
to use those targeted COPY lines so cache is preserved and collectstatic runs
with only Python/Django sources.
Contributor
🚀 Preview EnvironmentYour preview environment is ready!
Details
ℹ️ Preview Environment InfoIsolation:
Limitations:
Cleanup:
|
cemreinanc
temporarily deployed
to
testing_env
GitHub Actions
Inactive
cemreinanc
temporarily deployed
to
testing_env
GitHub Actions
Inactive
Contributor
There was a problem hiding this comment.
🧹 Nitpick comments (1)
Dockerfile (1)
58-58: Consider scoping theCOPYto backend-only files for more efficient layering.While your
.dockerignoreproperly excludes sensitive files like.env, the fullCOPY . /app/still pulls unnecessary files (frontend assets, tests, documentation, etc.) into this intermediate stage where only the Django backend is needed forcollectstatic. Scoping this copy reduces intermediate layer size and follows the pattern already used in thefrontend_buildstage (COPY front_end/ /app/front_end/).♻️ Proposed scoped COPY
-COPY . /app/ +COPY manage.py pyproject.toml poetry.lock /app/ +COPY <your_django_app_dir>/ /app/<your_django_app_dir>/🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed. In `@Dockerfile` at line 58, Replace the broad "COPY . /app/" in the Dockerfile with a scoped copy that only brings backend/Django sources and static assets needed for collectstatic into the build stage (e.g., copy the backend app directory, requirements, manage.py, templates, and static folders), mirroring the pattern used in the frontend_build stage's "COPY front_end/ /app/front_end/"; update the stage that runs collectstatic to use those backend-only paths so intermediate layers are smaller and frontend/tests/docs are excluded from this stage.
🤖 Prompt for all review comments with AI agents
Verify each finding against the current code and only fix it if needed.
Nitpick comments:
In `@Dockerfile`:
- Line 58: Replace the broad "COPY . /app/" in the Dockerfile with a scoped copy
that only brings backend/Django sources and static assets needed for
collectstatic into the build stage (e.g., copy the backend app directory,
requirements, manage.py, templates, and static folders), mirroring the pattern
used in the frontend_build stage's "COPY front_end/ /app/front_end/"; update the
stage that runs collectstatic to use those backend-only paths so intermediate
layers are smaller and frontend/tests/docs are excluded from this stage.
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Summary by CodeRabbit