rkt 1.14.0 发布了。Rocket （也叫 rkt）是 CoreOS 推出的一款容器引擎，和 Docker 类似，帮助开发者打包应用和依赖包到可移植容器中，简化搭环境等部署工作。Rocket 和 Docker 不同的地方在于，Rocket 没有 Docker 那些为企业用户提供的“友好功能”，比如云服务加速工具、集群系统等。反过来说，Rocket 想做的，是一个更纯粹的业界标准。

该版本更新了 coreos和kvm flavors，在 api-service中修复了一些bug以及更改了cgroups-related，更好的启发式也相继出台以避免在不支持的环境中使用覆盖。

发行说明：

• https://coreos.com/blog/rkt-container-engine-v1-14-0.html

主要更新如下：

New features and UX changes

• stage1: update to CoreOS 1151.0.0 and systemd v231 (#3122).

• common: fall back to non-overlay with ftype=0 (#3105).

• rkt: honor insecure-options in run-prepared (#3138).

Bug fixes

• stage0: fix golint warnings (#3099).

• rkt: avoid possible panic in api-server (#3111).

• rkt/run: allow --set-env-file files with comments (#3115).

• scripts/install-rkt: add wget as dependency (#3124).

• install-rkt.sh: scripts: Fix missing files in .deb when using install-rkt.sh (#3127).

• tests: check for run-prepared with insecure options (#3139).

Other changes

• seccomp/docker: update docker whitelist to include mlock (#3126). This updates the@docker/default-whitelist to include mlock-related syscalls (mlock, mlock2, mlockall).

• build: add PowerPC (#2936).

• scripts: install-rkt.sh: fail install-pak on errors (#3150). When install-pak (called from install-rkt.sh) fails at some point abort packaging.

• api_service: Rework cgroup detection (#3072). Use the subcgroup file hint provided by some stage1s rather than machined registration.

• Documentation/devel: add make images target (#3142). This introduces the possibility to generate graphivz based PNG images using a new images make target.

• vendor: update appc/spec to 0.8.7 (#3143).

• stage1/kvm: avoid writing misleading subcgroup (#3107).

• vendor: update go-systemd to v12 (#3125).

• scripts: bump coreos.com/rkt/builder image version (#3092). This bumps rkt-builder version to 1.0.2, in order to work with seccomp filtering.

• export: test export for multi-app pods (#3075).

• Documentation updates: (#3146, #2954, #3128, #2953, #3103, #3087, #3097, #3096, #3095, #3089)

下载：

• https://github.com/coreos/rkt/releases/tag/v1.14.0