Go Programming Pattern in Kubernetes Philosophy Harry Zhang @resouer Contents • What I will talk? • Kubernetes basic in 1 min • For Kubernetes developers: • The Golang programming patterns of based interface design in Kubernetes (CRI as example) • For Kubernetes users: • Effective pattern of programming based on Kubernetes • ⼴广告（Don’t worry, it’s not that kind of AD） • What I will proxy 4.1 Detected bind operation 4.2 Start Pod on this machine etcd scheduler api-server Pattern 1: Controller • Control everything by Controller • Level driven, not edge driven edge level

Operator Pattern：用 Go 扩展 K8s 的最佳实践 吴学强 ApeCloud KubeBlocks Maintainer & 研发总监 目 录 认识我们 00 什么是 Operator 01 Operator 基础模型 02 Operator 最佳实践 03 我们是谁 云猿生（ApeCloud）是一家提供数据库内核与管理平台的基 础软件开发商. KubeBlocks KubeBlocks Maintainer & 研发总监 free6om 什么是 Operator 第一部分 Operator 前世今生 TPR Operator CRD Operator Pattern 2015.11 2016.12 2017.12 Now K8s 1.1 版本中正式推出 TPR （ThirdPartyResource），首次尝 试解决 K8s API 的扩展性问题， controller-runtime 加入 K8s 社 区并正式发布； 自此，CRD + controller-runtime 逐渐成为开发 operator 的首选 Operator Pattern 是官方定义的标准扩 展机制，是 K8s Native Application; Operator = CRD + control loop, i.e, Declaretive API +

--session-id | --session-name pattern> [PID1 [...]] closesession [common-options] < --all | --session-id | --session-name pattern> > updatega|updateguestadditions|updateadditions ] natnetwork start --netname natnetwork stop --netname natnetwork list [<pattern>] hostonlyif ipconfig [--dhcp | --ip [--netmask (def:255.255.255.0)]| --ipv6 [--excl-mac=address...] [--incl-mac-wild=pattern...] [--excl-mac-wild=pattern...] [--incl-vendor=string...] [--excl-vendor=string...] [--incl-vendor-wild=pattern...] [--excl-vendor-wild=pattern...] [--incl-user=string

--session-id | --session-name pattern> [PID1 [...]] closesession [common-options] < --all | --session-id | --session-name pattern> > updatega|updateguestadditions|updateadditions ] natnetwork start --netname natnetwork stop --netname natnetwork list [<pattern>] hostonlyif ipconfig [--dhcp | --ip [--netmask (def:255.255.255.0)]| --ipv6 [--excl-mac=address...] [--incl-mac-wild=pattern...] [--excl-mac-wild=pattern...] [--incl-vendor=string...] [--excl-vendor=string...] [--incl-vendor-wild=pattern...] [--excl-vendor-wild=pattern...] [--incl-user=string

--session-id | --session-name pattern> [PID1 [...]] closesession [common-options] < --all | --session-id | --session-name pattern> > updatega|updateguestadditions|updateadditions ] natnetwork start --netname natnetwork stop --netname natnetwork list [<pattern>] hostonlyif ipconfig [--dhcp | --ip [--netmask (def: 255.255.255.0)] | --ipv6 [--excl-mac=address...] [--incl-mac-wild=pattern...] [--excl-mac-wild=pattern...] [--incl-vendor=string...] [--excl-vendor=string...] [--incl-vendor-wild=pattern...] [--excl-vendor-wild=pattern...] [--incl-user=string

--session-id | --session-name pattern> [PID1 [...]] closesession [common-options] < --all | --session-id | --session-name pattern> > updatega|updateguestadditions|updateadditions ] natnetwork start --netname natnetwork stop --netname natnetwork list [<pattern>] hostonlyif ipconfig [--dhcp | --ip [--netmask (def: 255.255.255.0)] | --ipv6 [--excl-mac=address...] [--incl-mac-wild=pattern...] [--excl-mac-wild=pattern...] [--incl-vendor=string...] [--excl-vendor=string...] [--incl-vendor-wild=pattern...] [--excl-vendor-wild=pattern...] [--incl-user=string

--session-id | --session-name pattern> [PID1 [...]] closesession [common-options] < --all | --session-id | --session-name pattern> > updatega|updateguestadditions|updateadditions ] natnetwork start --netname natnetwork stop --netname natnetwork list [<pattern>] hostonlyif ipconfig [--dhcp | --ip [--netmask (def:255.255.255.0)]| --ipv6 [--excl-mac=address...] [--incl-mac-wild=pattern...] [--excl-mac-wild=pattern...] [--incl-vendor=string...] [--excl-vendor=string...] [--incl-vendor-wild=pattern...] [--excl-vendor-wild=pattern...] [--incl-user=string

--session-id | --session-name pattern> [PID1 [...]] closesession [common-options] < --all | --session-id | --session-name pattern> > updatega|updateguestadditions|updateadditions ] natnetwork start --netname natnetwork stop --netname natnetwork list [<pattern>] hostonlyif ipconfig [--dhcp | --ip [--netmask (def: 255.255.255.0)] | --ipv6 [--excl-mac=address...] [--incl-mac-wild=pattern...] [--excl-mac-wild=pattern...] [--incl-vendor=string...] [--excl-vendor=string...] [--incl-vendor-wild=pattern...] [--excl-vendor-wild=pattern...] [--incl-user=string