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| Layer / File(s) | Summary |
|---|---|
Update Dockerfile fixture core/src/test/java/org/testcontainers/junit/DockerfileContainerTest.java |
The fixture uses Alpine 3.12, creates /run/nginx, and changes the default Nginx response to HTTP 200. |
Priority:
Estimated code review effort: 1 (Trivial) | ~4 minutes
Change: Bug fix · Severity of issue fixed: Low
Suggested reviewers: eddumelendez
Merge Risk: 
f88fe
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No actionable merge-blocking risk remains; the fixture changes are compatible with the supported ARM64 and x86 test paths.
Pre-merge checks: 
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Check name Status Explanation Title check The title "update Dockerfile test fixture for ARM64" matches the main change. The PR switches the DockerfileContainerTest fixture from alpine:3.2 to alpine:3.12 so the test can resolve its base image … Description check The description follows the repository template in substance. It links the issue (Fixes #12137), explains the problem (alpine:3.2 lacks a linux/arm64 manifest), and describes the change (alpine:3.12, …Linked Issues check Linked issue #12137has one active direct target. Its coding requirements are: (1) use an Alpine tag with an ARM64 manifest, such as alpine:3.12; (2) create /run/nginx; (3) change nginx's default resp…Out of Scope Changes check The whole-PR diff against the merge base changes one file: DockerfileContainerTest.java, with three added or changed lines in the Dockerfile builder fixture. Each change maps to a requirement in #1213…Docstring Coverage No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 1… Full details: Title check
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Explanation
The title "update Dockerfile test fixture for ARM64" matches the main change. The PR switches the DockerfileContainerTest fixture from alpine:3.2 to alpine:3.12 so the test can resolve its base image on ARM64 hosts. The title names the fixture and the ARM64 purpose. It is specific and does not use vague terms.
Full details: Description check
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Explanation
The description follows the repository template in substance. It links the issue (Fixes
#12137), explains the problem (alpine:3.2 lacks a linux/arm64 manifest), and describes the change (alpine:3.12, /run/nginx, HTTP 200). It also reports verification steps and states what was not run (full Docker integration suite, Spotless check). The template's contributor checklist items (checkstyle, spotlessApply) are not explicitly addressed, but the description covers the required content: problem, change, and verification.
Full details: Linked Issues check
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Explanation
Linked issue
#12137has one active direct target. Its coding requirements are: (1) use an Alpine tag with an ARM64 manifest, such as alpine:3.12; (2) create /run/nginx; (3) change nginx's default response so the test's HTTP 200 assertion still holds. The diff to core/src/test/java/org/testcontainers/junit/DockerfileContainerTest.java meets all three. It changes .from("alpine:3.2") to .from("alpine:3.12"), adds .run("mkdir -p /run/nginx"), and adds .run("sed -i 's/return 404;/return 200;/' /etc/nginx/conf.d/default.conf"). The existing assertion is unchanged. The ARM64 pass result is author-reported. This review did not run the test or check the default.conf contents inside the apk package, so that runtime behavior is not independently verified. No non-coding task applies beyond the manual verification that the author reports.
Full details: Out of Scope Changes check
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Explanation
The whole-PR diff against the merge base changes one file: DockerfileContainerTest.java, with three added or changed lines in the Dockerfile builder fixture. Each change maps to a requirement in
#12137: the base image tag, the /run/nginx directory, and the nginx default response. No production code, build configuration, or unrelated test is modified. The PR description and PR objectives both state that the change is limited to the test fixture, and the diff matches that statement.
Full details: Docstring Coverage
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Explanation
No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 1 files.
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Fixes #12137.
Problem
DockerfileContainerTest.simpleDslTestusesalpine:3.2, which has nolinux/arm64manifest. On an ARM64 Docker host the test fails while resolving its base image, before exercising the Dockerfile builder.Change
alpine:3.12, which has an ARM64 image./run/nginxand change the fixture's default 404 response to HTTP 200, preserving the test's existing assertion.This branch changes only the test fixture.
Verification
:testcontainers:test --tests org.testcontainers.junit.DockerfileContainerTest.simpleDslTestpasses on ARM64 Docker with the fork'smainbaseline.:testcontainers:build -x :testcontainers:test -x :testcontainers:spotlessJavaCheckpasses.git diff --checkpasses.The full Docker integration suite has not completed locally. The Java Spotless check requires
npm, which is unavailable on this host. CI should run the complete checks before merge.Summary by CodeRabbit