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CHANGELOG.md

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Changelog

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

Unreleased

v1.0.0 - 2025-03-26

Changed

  • containerd_shim_wasm::sandbox::shim::Cli -> containerd_shim_wasm::sandbox::shim::Shim and it is no longer public, because this was not intended to be used by users of the crate.
  • Breaking change: All methods in the Engine trait (except name and supported_layers_types) are now async. (#931)
  • The Engine trait is now being split into Shim, Sandbox and Compiler traits. (#936)
  • The container module is renamed to shim module. (#936)
  • The Instance trait is moved to the containerd_shimkit crate, which has it's own changelog, version and README. (#930)

Removed

  • Removed the shim_main function. Use ShimCli::run trait method instead. (#944 and #943)
  • The with_lease macro, otel module and instance_utils module are now private. (#929)
  • The logging macros are removed. Now, the pod ID and container ID are unconditionally added to any logging coming from a sandbox process. (#953

v0.10.0 - 2025-03-05

Added

  • Support for parsing SystemdCgroup from the containerd config file (#864)\
  • Added more parameters info to the traces (must enable tracing feature) (#853)
  • Added structured logging macros to the crate (#879)

Changed

  • Engine trait now creates a dedicated Zygote process for each container to avoid the issue of libcontainer trying to change the shim process's global state. (#828)
  • Engine trait now uses systemd_cgroup from InstanceConfig to create the container's cgroup instead of hardcoding it to false. (#864)
  • containerd-shim-wasm now uses Rust Edition 2024.
  • Breaking change: The InstanceConfig struct now has public members instead of accessor methods. (#882)
  • Breaking change: Removed the Engine associated type from the Instance trait (#887)
  • Breaking change: The methods of the Instance trait are now async. (#890)
  • Internal refactor: The codebase of containerd-shim-wasm is now mostly asynchronous. (#890)

Removed

  • containerd_shim_wasm::container::PathResolve is now a private module (#837)

Fixed

  • Fixed the issue of not seeing pod metrics #821

v0.9.0 - 2025-01-27

Added

  • Added test for signal handling issue #755 (#756)

Changed

  • Reuse and synchronise access to Container object instead of reloading form disk (#763)
  • Remove custom stdio redicrection: The run_wasi method doesn't receive the Stdio object anymore, and redirection is done before the method is called (#788)
  • Require Engine generic in Instance to implement Default (#774)
  • The method Instance::new now takes an &InstanceConfig instead of Option<&InstanceConfig> (#774)
  • Bumped containerd-shim to v0.8.0.

Removed

  • Removed containerd_shim_wasm::sandbox::instance_utils::get_instance_root and containerd_shim_wasm::sandbox::instance_utils::instance_exists functions (#763)
  • Removed Engine generic from InstanceConfig (#774)

Fixed

  • Fixed the undefined behavior issue in forked processes (#357) in #775, which decouples the global state of the shim from the state of the container process.
  • Fixed the issue related to signal handlings in containers (#755). The core of the issue was that the use of Tokio signal handlings is shared between the shim and the container process, and this shared state leads to broken signal handling. It was fixed by #775.

v0.8.0 — 2024-12-04

Added

  • Support for "wasi:http/proxy" world in Wasmtime shim (#691, #705)
  • Re-export containerd_shim::Config (#714)
  • CI jobs for spell checking and running documentation tests (#728)

Changed

  • Update the opentelemetry related dependencies to the latest version (#712)
  • Use InstanceAllocationStrategy::Pooling if possible in wasmtime-shim (#751)

Removed

  • Removed special handling of the pause container, now it is treated as any other native container (#724)

Fixed

  • Documentation tests (#728)

v0.7.0 — 2024-10-7

Added

  • OpenTelemetry tracing support (#582, #653)
  • Enabled async, networking, and IP name lookup in Wasmtime (#589)
  • Re-enabled benchmarking with cargo bench (#612)
  • Support for generating new artifact types (#631)
  • End-to-end tests for Wasm OCI artifacts (#661)

Changed

  • Made tracing::instrument macro optional (#592)
  • Upgraded youki Libcontainer to v0.3.3 that reduce startup time by 1s (#601)
  • Configured dependabot to group patch updates (#641)
  • Improved PathResolve logic using RPITIT (#654)
  • Improved error messages in Executor::exec (#655)
  • Improved the getting started guide and Makefile for Windows (#665)
  • Modified behavior so that container environment variables are exclusively passed to WASI modules, enhancing security and isolation. (#668)
  • Updated the containerd-shim dependency to the latest version.

Fixed

  • Corrected syntax errors in release scripts (#603, #604)
  • Resolved CI failures in benchmark tests (#669)
  • Fixed a failed test test_envs_not_present and renamed it to test_envs_return_default_only #680
  • Fixed the setup environment by adding openssl dependency to the Dockerfile #680

Deprecated

  • Deprecated the 'Shared' mode (#671)

Removed

  • Removed dependency on prost-types (#656)
  • Removed dependency on native-tls (#683), note that the opentelemetry feature still depends on native-tls.