Kubernetes provisioning

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੹޹୍ rookie.jeon ஠஠য় Copyright 2022. Kakao Corp. All rights reserved. Redistribution or public display is not permitted without written permission from Kakao. Kubernetes provisioning if(kakao)2022 ೐۽࠺੷׬ ోҗ੄ ݅թࠗఠ ೻য૗ө૑ . . .

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஠஠য়ীࢲ ௢ߡ֎౭झܳ ࢲ࠺झ ೞח ߑध ௢ߡ֎౭झ ೐۽࠺੷׬ ో ࢶఖೞӝ ਍৔઺ ו՛ ೐۽࠺੷׬ ో(Kubespray)੄ ইए਍੼ ೐۽࠺੷׬ ో੄ ب਑ হ੉ ௢ߡ֎౭झ ࢲ࠺झ ೞӝ ੿ܻ ߂ ݃ޖܻ

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DKOSۆ ޖ঺ੋо? DKOS Datacenter of Kakao Operating System - Multi - Managed

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DKOSۆ ޖ঺ੋо? CNI Log LB Volume DNS Ingress Managed pod Kubernetes cluster User DKOS

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DKOSۆ ޖ঺ੋо? CNI Log LB Volume DNS Ingress Managed pod Kubernetes cluster User DKOS

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DKOSۆ ޖ঺ੋо? CNI Log LB Volume DNS Ingress Managed pod Kubernetes cluster User DKOS

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DKOSۆ ޖ঺ੋо? CNI Log LB Volume DNS Ingress Managed pod Kubernetes cluster User DKOS

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DKOSীࢲ যڃ ੘সਸ ࣻ೯೧ঠ ೡө? 1. VM ࢤࢿ (OpenStack ӝ߈੄ ࢎղ IaaS ೐۽ં౟ੋ krane ࢎਊ) 2. kernel / OS ౵ۄ޷ఠ ࢸ੿ 3. ஶప੉ց ۠ఋ੐ ҳ୷ 4. ௢ߡ֎౭झ ҳ୷ 5. managed pod ߓನ

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Provisioning tool ೐۽࠺੷׬ ో੄ ೙ਃࢿ

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Kubeadm “рױ” kubeadm੉ۆ ޖ঺ੋо?

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kubeadm੉ۆ ޖ঺ੋо? DKOS Kubeadm ੢੼ উ੿ࢿ рױೣ ױ੼ ગ਷ ૑ਗ ߧਤ (য়૒ ௢ߡ֎౭झ ࢸ஖݅ ૑ਗ) ѐ߹ ੘স ࣻ೯ Node A - Z A - Z A - Z

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Kubespray “և਷ ߧਤ੄ ੗زച + ׮নೠ ࢶఖ૑ ઁҕ” Kubesprayۆ ޖ঺ੋо?

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Kubesprayۆ ޖ঺ੋо? Kubespray ੢੼ և਷ ߧਤ੄ ੗زച ૑ਗ ׮নೠ ࢶఖ૑ ઁҕ ױੌ ࣻ೯ਸ ాೠ ׮ࣻ ֢٘ ઁয оמ উ੿ࢿ DKOS Node access info + ansible script

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Kubespray ଻ఖ!! Kubespray ଻ఖ

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ݥ୾!! “Cluster APIח Ҋ۰ೞ૑ ঋওաਃ?” ׮ܲ ో਷ ࠺Ү উೞաਃ?

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Kubespray ଻ఖ!! Kubespray ଻ఖ

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Kubespray ଻ఖ Kubespray ଻ఖ

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Kubespray ଻ఖ?? Kubespray ଻ఖ

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ࠁউ ੄ઓࢿ ࢸ஖ दр ਬ૑ ࠁࣻ Kubespray ইए਍੼

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ࠁউ SSH Kubespray ইए਍੼ - ࠁউ

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Kubespray ইए਍੼ - ੄ઓࢿ 20.04 20.04 20.04 18.04 18.04 18.04 16.04 16.04 16.04 [email protected] Ansible Python Pkg

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Kubespray ইए਍੼ - ֢٘ ୶о दр ੘স ࢸݺ ࣻ೯ दр ࢎ੹ ੘স оמ ৈࠗ Download binary ‘container runtime, k8s, CNI . . .’ प೯ ౵ੌ ׮਍ 300s Image ղ੢ оמ Set container runtime & k8s container runtime & K8s ࢸ੿ ߂ ҳز 90s ੌࠗ ୊ܻ оמ Generate etc cert etcd cert ࢤࢿ 30s DKOS ୊ܻ оמ Gather facts anisible – inventory ֢٘ ੿ࠁ ࣻ૘ 20s X Set OS proxy, NSS, hostname . . . ࢸ੿ 10s Image ղ੢ оמ 450s – (Image ղ੢ + DKOS ୊ܻ) = 150s ୨ ࢸ஖ दр: 450s

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ਬ૑ ࠁࣻ 300 ~ 400 Ansible TASK Kubespray ইए਍੼ - ਬ૑ ࠁࣻ

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Ҋ޹੉ ݆ҳ݅… ࢶఖ੄ ӝ۽

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׮ܲ ో ૒੽ ѐߊ Cluster API A - Z ࢶఖ੄ ӝ۽

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Cluster API “ࢿמ ੉गী ؀ೠ ੄ޙ” cluster-API Ѩష

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Cluster API “ࢿמ ੉गী ؀ೠ ੄ޙ” cluster-API Ѩష

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೐۽࠺੷׬ ో ઁѢ Provisioning tool

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DKOSীࢲ যڃ ੘সਸ ࣻ೯೧ঠ ೡө? 1. VM ࢤࢿ (OpenStack ӝ߈੄ IaaS ೐۽ં౟ੋ krane ࢎਊ) 2. kernel / OS ౵ۄ޷ఠ ࢸ੿ 3. ஶప੉ց ۠ఋ੐ ҳ୷ 4. ௢ߡ֎౭झ ҳ୷ 5. managed pod ߓನ

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DKOSীࢲ যڃ ੘সਸ ࣻ೯೧ঠ ೡө? 1. VM ࢤࢿ (OpenStack ӝ߈੄ IaaS ೐۽ં౟ੋ krane ࢎਊ) 2. kernel / OS ౵ۄ޷ఠ ࢸ੿ 3. ஶప੉ց ۠ఋ੐ ҳ୷ 4. ௢ߡ֎౭झ ҳ୷ 5. managed pod ߓನ Control plane 1 - 5 ױ҅ ૓೯ ֢٘ ୶о ੿੸ Data plane 1 - 4 ױ҅ ૓೯ ֢٘ ୶о ഝߊ ࢸ஖ दрী ޹х

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DKOSীࢲ যڃ ੘সਸ ࣻ೯೧ঠ ೡө? 1. VM ࢤࢿ (OpenStack ӝ߈੄ IaaS ೐۽ં౟ੋ krane ࢎਊ) 2. kernel / OS ౵ۄ޷ఠ ࢸ੿ 3. ஶప੉ց ۠ఋ੐ ҳ୷ 4. ௢ߡ֎౭झ ҳ୷ 5. managed pod ߓನ ੿੸ ؘ੉ఠ + ز੸ ؘ੉ఠ

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DKOSীࢲ যڃ ੘সਸ ࣻ೯೧ঠ ೡө? 1. VM ࢤࢿ (OpenStack ӝ߈੄ IaaS ೐۽ં౟ੋ krane ࢎਊ) 2. kernel / OS ౵ۄ޷ఠ ࢸ੿ 3. ஶప੉ց ۠ఋ੐ ҳ୷ 4. ௢ߡ֎౭झ ҳ୷ 5. managed pod ߓನ ੿੸ ؘ੉ఠ (Image) + ز੸ ؘ੉ఠ (Cloud-init)

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DKOS Image Repo Cloud-init Data center Krane ؘ੉ఠ ೒ۨੋ ೐۽࠺੷׬ - ৘द

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DKOS Image Repo Cloud-init Data center Krane Pre-processing image ؘ੉ఠ ೒ۨੋ ೐۽࠺੷׬ - ৘द

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DKOS Image Repo Cloud-init Data center Krane DataPlane Create VM With script ؘ੉ఠ ೒ۨੋ ೐۽࠺੷׬ - ৘द

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DKOS Image Repo Cloud-init Data center Krane DataPlane Create VM With script Upload script ؘ੉ఠ ೒ۨੋ ೐۽࠺੷׬ - ৘द

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DKOS Image Repo Cloud-init Data center Krane DataPlane Create VM With script Create VM ؘ੉ఠ ೒ۨੋ ೐۽࠺੷׬ - ৘द Pre-processing image

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DKOS Image Repo Cloud-init Data center Krane 1. Request cloud-init script 2. Get Cert & Config from script DataPlane ؘ੉ఠ ೒ۨੋ ೐۽࠺੷׬ - ৘द

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DKOS Image Repo Cloud-init Data center Krane Config Cert 1. Request cloud-init script 2. Get Cert & Config from script DataPlane ؘ੉ఠ ೒ۨੋ ೐۽࠺੷׬ - ৘द

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DKOS Image Repo Cloud-init Data center Krane Config Cert ControlPlane Join DataPlane ؘ੉ఠ ೒ۨੋ ೐۽࠺੷׬ - ৘द

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DKOS Image Repo Cloud-init Data center Krane Config Cert ControlPlane Join DataPlane ؘ੉ఠ ೒ۨੋ ೐۽࠺੷׬ - ৘द Done!!

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DKOS Image Repo Cloud-init Data center Krane 2. Create VM With script 3. Create VM 3. Upload script Config Cert 6. Join ControlPlane 4. Request cloud-init script 5. Get Cert & Config from script 1. Pre-processing image DataPlane ؘ੉ఠ ೒ۨੋ ೐۽࠺੷׬ - ৘द

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যڌѱ? “ઑੋ җ੿” ؘ੉ఠ ೒ۨੋ੄ ஶ౟܀ ೒ۨੋ ઑੋ җ੿

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DataPlane ControlPlane kube- apiserver kube- scheduler controller-manager etcd Kubelet Kube-Proxy ؘ੉ఠ ೒ۨੋ੄ ஶ౟܀ ೒ۨੋ ઑੋ җ੿ - ৘द

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DataPlane ControlPlane Kubelet Kube-Proxy ؘ੉ఠ ೒ۨੋ੄ ஶ౟܀ ೒ۨੋ ઑੋ җ੿ - ৘द kube- apiserver kube- scheduler controller-manager etcd

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DataPlane ControlPlane Kubelet Kube-Proxy ؘ੉ఠ ೒ۨੋ੄ ஶ౟܀ ೒ۨੋ ઑੋ җ੿ - ৘द Cert kube- apiserver kube- scheduler controller-manager etcd

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DataPlane ControlPlane Kubelet Kube-Proxy ؘ੉ఠ ೒ۨੋ੄ ஶ౟܀ ೒ۨੋ ઑੋ җ੿ - ৘द kube- apiserver kube- scheduler controller-manager etcd

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DataPlane ControlPlane Kubelet Kube-Proxy ؘ੉ఠ ೒ۨੋ੄ ஶ౟܀ ೒ۨੋ ઑੋ җ੿ - ৘द Token 1. Create Token kube- apiserver kube- scheduler controller-manager etcd

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DataPlane ControlPlane Kubelet Kube-Proxy ؘ੉ఠ ೒ۨੋ੄ ஶ౟܀ ೒ۨੋ ઑੋ җ੿ - ৘द Token Token Config 1. Create Token 2. Create config kube- apiserver kube- scheduler controller-manager etcd

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DataPlane ControlPlane Kubelet Kube-Proxy ؘ੉ఠ ೒ۨੋ੄ ஶ౟܀ ೒ۨੋ ઑੋ җ੿ - ৘द Token Token Config request cert kube- apiserver kube- scheduler controller-manager etcd

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DataPlane ControlPlane Kubelet Kube-Proxy ؘ੉ఠ ೒ۨੋ੄ ஶ౟܀ ೒ۨੋ ઑੋ җ੿ - ৘द Token send cert Cert kube- apiserver kube- scheduler controller-manager etcd

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DataPlane ControlPlane Kubelet Kube-Proxy ؘ੉ఠ ೒ۨੋ੄ ஶ౟܀ ೒ۨੋ ઑੋ җ੿ - ৘द Token Cert join kube- apiserver kube- scheduler controller-manager etcd

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੿ܻ - ೐۽࠺੷׬ ో ࢶఖ ߓ҃ DKOS Datacenter of Kakao Operating System Provisioning tool +

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੿ܻ - Kubespray੄ ইए਍੼ SSH 450s 300 task dependency

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੿ܻ - ೐۽࠺੷׬ ో ઁѢ Provisioning tool

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੿ܻ - Kubespray੄ ইए਍੼ SSH 450s 300 task dependency

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੿ܻ - ೐۽࠺੷׬ ో হ੉ ௢ߡ֎౭झ ࢲ࠺झೠ Ѿҗ SSH 450s 300 task cloud-init 20s ੄ઓࢿ X ਬ૑ ࠁࣻ X dependency

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नࣘ উ੹ ҃۝ ੿ܻ - ೐۽࠺੷׬ ో হ੉ ௢ߡ֎౭झ ࢲ࠺झೠ Ѿҗ