feat: use DOCKER_DEFAULT_PLATFORM env var to specify platform#800
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DDtKey merged 4 commits intotestcontainers:mainfrom Sep 15, 2025
Merged
feat: use DOCKER_DEFAULT_PLATFORM env var to specify platform#800DDtKey merged 4 commits intotestcontainers:mainfrom
DDtKey merged 4 commits intotestcontainers:mainfrom
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When the env var is set the platform is passed for both image and container creation in parity with the docker CLI. This is especially useful on apple silicon when developing for linux environments. fixes testcontainers#500, testcontainers#718
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DDtKey
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Jun 27, 2025
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## 🤖 New release
* `testcontainers`: 0.25.0 -> 0.25.1
### ⚠ `testcontainers` breaking changes
`cargo-semver-checks` suggests to release `0.26.0` as new methods added
to the public trait, which is generally breaking.
But it only affects `ImageExt` which isn't generally expected to be
implemented by users. It's already implemented for all `I: Image`
So these should be safe to ignore here
```text
--- failure trait_method_added: pub trait method added ---
Description:
A non-sealed public trait added a new method without a default implementation, which breaks downstream implementations of the trait
ref: https://doc.rust-lang.org/cargo/reference/semver.html#trait-new-item-no-default
impl: https://github.com/obi1kenobi/cargo-semver-checks/tree/v0.43.0/src/lints/trait_method_added.ron
Failed in:
trait method testcontainers::core::ImageExt::with_hostname in file /tmp/.tmpDpXBCy/testcontainers-rs/testcontainers/src/core/image/image_ext.rs:99
trait method testcontainers::core::ImageExt::with_exposed_host_port in file /tmp/.tmpDpXBCy/testcontainers-rs/testcontainers/src/core/image/image_ext.rs:125
trait method testcontainers::core::ImageExt::with_exposed_host_ports in file /tmp/.tmpDpXBCy/testcontainers-rs/testcontainers/src/core/image/image_ext.rs:129
trait method testcontainers::core::ImageExt::with_device_requests in file /tmp/.tmpDpXBCy/testcontainers-rs/testcontainers/src/core/image/image_ext.rs:248
trait method testcontainers::ImageExt::with_hostname in file /tmp/.tmpDpXBCy/testcontainers-rs/testcontainers/src/core/image/image_ext.rs:99
trait method testcontainers::ImageExt::with_exposed_host_port in file /tmp/.tmpDpXBCy/testcontainers-rs/testcontainers/src/core/image/image_ext.rs:125
trait method testcontainers::ImageExt::with_exposed_host_ports in file /tmp/.tmpDpXBCy/testcontainers-rs/testcontainers/src/core/image/image_ext.rs:129
trait method testcontainers::ImageExt::with_device_requests in file /tmp/.tmpDpXBCy/testcontainers-rs/testcontainers/src/core/image/image_ext.rs:248
```
<details><summary><i><b>Changelog</b></i></summary><p>
<blockquote>
## [0.25.1] - 2025-10-27
### Details
#### Bug Fixes
- Replace tokio-tar with astral-tokio-tar
([#852](#852))
#### Documentation
- Rustdoc for builder API
([#820](#820))
#### Features
- Use DOCKER_DEFAULT_PLATFORM env var to specify platform
([#800](#800))
- Fallback to platform linux/amd64 when image pull fails
([#837](#837))
- Add support for devices request
([#832](#832))
- Add configurable tmpfs mount sizes
([#853](#853))
- Support `http_wait` functionallity without tls dependencies
([#850](#850))
- Add container hostname support
([#848](#848))
- Expose host ports between host and containers via ssh sidecar
([#846](#846))
#### Miscellaneous Tasks
- Update bollard-stubs requirement from =1.48.3-rc.28.0.4 to
=1.49.0-rc.28.3.3
([#828](#828))
#### Refactor
- Remove bollard_stubs dependency as bollard re-exports it
([#844](#844))
#### Testing
- Avoid flakiness in `platform` test
- Switch to testcontainers/helloworld and reduce some flakiness
([#855](#855))
</blockquote>
</p></details>
---
This PR was generated with
[release-plz](https://github.com/release-plz/release-plz/).
---------
Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: Artem Medvedev <i@ddtkey.com>
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When the env var is set the platform is passed for both image and container creation in parity with the docker CLI.
This is especially useful on apple silicon when developing for linux environments.
fixes #500, #718