rkt v1.21.0 发布，CoreOS 的容器引擎

CoreOS 的容器引擎 rkt v1.21.0 发布了。此版本包括实验性 CRI 支持的错误修复，更稳定的集成测试和一些其他有趣的更改：

• 默认受限网络从 172.16.28.0/24 更改为 172.17.0.0/26

• OCI 支持的详细路线图已经完成

新特性

• Change the subnet for the default-restricted network ( #3440 ), ( #3459 ).

• Prepare for writable /proc/sys, and /sys ( #3389 ).

• Documentation/proposals: add OCI Image Format roadmap ( #3425 ).

Bug 修复

• stage1: app add, status didn't work with empty vols ( #3451 ).

• stage1: properly run defer'd umounts in app add ( #3455 ).

• cri: correct 'created' timestamp ( #3399 ).

• fly: ensure the target bin directory exists before building ( #3436 ).

• rkt: misc systemd-related fixes ( #3418 ).

其他变更

• pkg/mountinfo: move mountinfo parser to its own package ( #3415 ).

• stage1: persist runtime parameters ( #3432 ), ( #3450 ).

• stage1: signal supervisor readiness ( #3424 ), ( #3439 ).

• sandbox: add missing flagDNSDomain and flagHostsEntries parameters ( #3430 ).

• pkg/tar: fix variable name in error ( #3433 ).

• tests: fix TestExport for the KVM+overlay case ( #3435 ).

• tests: fix some potential gexpect hangs ( #3443 ).

• tests: add smoke test for app sandbox ( #3371 ).

• tests: tentative fixes for sporadic host and kvm failures ( #3434 ).

• rkt: remove empty TODO ( #3417 ).

• Documentation updates: #3446 , ( #3421 ), ( #3412 ).

发布主页 和 完整更新日志

下载地址：

• https://github.com/coreos/rkt/releases/tag/v1.21.0