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Expose host ports per container instead of globally

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难度
4/5
预计耗时
1-2 天
新手友好度
54/100
Issue 类型
功能
描述清晰度
基本清楚
活跃度
活跃
技术栈
docker, node.js, typescript
领域
backend, testing

调研方向

Read start and startContainer in packages/testcontainers/src/generic-container/generic-container.ts, then trace host access through packages/testcontainers/src/port-forwarder/port-forwarder.ts and packages/testcontainers/src/test-containers.ts. Check how the request affects reuse hashing and coordinate with #1520 and #1522. Done means a container can opt in with withExposedHostPorts(...ports), unrequested containers stay unaffected, and the existing global call continues to work.

由索引模型根据 Issue 内容生成。

描述

enhancement minor

What happens

TestContainers.exposeHostPorts(...ports) is global and permanent. Once it has been called, every container started afterwards in the process:

  • is connected to the port forwarder's network, in addition to its own
  • gets a host.testcontainers.internal entry in its extra hosts

whether or not it needs to reach the host. A container cannot opt out, and exposure cannot be scoped to one test. The extra network shows up in getNetworkNames().

Expected

Host access is requested per container, for example withExposedHostPorts(...ports). Containers that did not ask are left alone. The global call keeps working.

Where

  • start and startContainer in packages/testcontainers/src/generic-container/generic-container.ts
  • packages/testcontainers/src/port-forwarder/port-forwarder.ts
  • packages/testcontainers/src/test-containers.ts

Notes

  • Java keeps the global Testcontainers.exposeHostPorts(...) and makes containers opt in with withAccessToHost(true). Go's WithHostPortAccess(ports...) is per container.
  • Related: #1188.
  • Changing the global call so that containers no longer get host access by default would be major. Adding the per-container form is minor.

Dependencies

  • Stack on #1520: the host-access wiring is in start(), where it is one of the things that accumulates.
  • Coordinate with #1522: host access changes the create request, so it affects the reuse hash.
主要语言
TypeScript
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