chore: add documentation for docker image #41
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WalkthroughThe changes in this pull request involve modifications to the Changes
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Actionable comments posted: 2
🧹 Outside diff range and nitpick comments (5)
Dockerfile (3)
Line range hint
1-1: Fix invalid Go version in base imageThe Dockerfile uses
golang:1.23-alpinewhich is invalid as Go 1.23 doesn't exist yet. The latest stable version is Go 1.21.x.Apply this fix:
-FROM --platform=$BUILDPLATFORM golang:1.23-alpine AS build-env +FROM --platform=$BUILDPLATFORM golang:1.21-alpine AS build-env
Line range hint
1-22: Consider security improvementsThe container runs as root by default, which is not a security best practice.
Consider adding these security improvements:
FROM alpine:3.18.3 WORKDIR /root +# Create non-root user +RUN adduser -D localda # Copy over binaries from the build-env COPY --from=build-env /src/main /usr/bin/local-da + +# Set ownership +RUN chown localda:localda /usr/bin/local-da EXPOSE 7980 +# Switch to non-root user +USER localda + ENTRYPOINT ["local-da"] CMD ["-listen-all"]
Go version mismatch confirmed between Dockerfile and go.mod
The verification confirms a version mismatch:
- go.mod specifies Go 1.21.1
- Dockerfile uses golang:1.23-alpine
- Build command uses
-compat=1.19This creates three different version references which could lead to compatibility issues:
- The build environment uses a newer version (1.23) than the module requires (1.21.1)
- The compatibility flag (-compat=1.19) is set to an older version than both
🔗 Analysis chain
Line range hint
6-7: Review Go version compatibilityThere's a version mismatch between go.mod compatibility (1.19) and the Go version used in the build (1.23). This could lead to unexpected behavior.
Let's check the go.mod file for the required Go version:
Let me verify the Go version in the Dockerfile to compare with the go.mod version.
Let me try a different approach to check the Dockerfile content.
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Description: Check Go version requirements in go.mod grep -A 1 "^go " go.modLength of output: 36
Script:
#!/bin/bash # Check Go version specified in Dockerfile rg -A 1 "FROM golang:" DockerfileLength of output: 35
Script:
#!/bin/bash # Show the complete content of Dockerfile to check Go version specification cat DockerfileLength of output: 413
README.md (1)
Line range hint
9-32: Consider adding more context and prerequisitesWhile the binary usage instructions are clear, consider adding:
- Prerequisites (required Go version)
- Explanation for the port choice (7980)
- Available configuration options beyond
-listen-allMakefile (1)
17-21: LGTM! Consider versioning the Docker image tag.The new target follows the Makefile's conventions and is well-integrated. However, consider adding a version to the Docker image tag for better image management.
docker-build: @echo "--> Building local-da docker image" - @docker build -t local-da . + @docker build -t local-da:latest -t local-da:$$(git describe --tags --always) .
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📒 Files selected for processing (3)
Dockerfile(1 hunks)Makefile(1 hunks)README.md(2 hunks)
🔇 Additional comments (1)
Dockerfile (1)
21-22: LGTM! Good separation of ENTRYPOINT and CMD
The separation of ENTRYPOINT and CMD is a good practice. It allows:
- The main executable to be fixed via
ENTRYPOINT - Default arguments in
CMDthat can be overridden at runtime
Overview
Summary by CodeRabbit
New Features
local-daapplication.local-dabinary and running the service with Docker.Bug Fixes
Documentation
local-dabinary and Docker, providing clearer setup instructions.