はてなインターンシップ2024 コンテナオーケストレーション講義資料

by Hatena

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ίϯςφΦʔέετϨʔγϣϯ IBUFOBJOUFSO 

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ࣗݾ঺հ id:masayosu SRE IBUFOBJOUFSO 

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͜ͷߨٛͰֶΜͰ΄͍͜͠ͱ Kubernetes Kubernetes IBUFOBJOUFSO 

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ίϯςφΦʔέετϨʔγϣϯͱ͸ IBUFOBJOUFSO 

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ίϯςφ Docker: Build/Ship/Run 1 1 1 IBUFOBJOUFSO 

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ίϯςφΦʔέετϨʔγϣϯͱ͸ 邾丗סؤ٤طػ؅畘杼׊յ⶜鐧׈׎יⳂ־׌ג״סص٭ٜ ˝ ؤ٤طػ⺱㚖ֿ鵟⟓ך׀׾׻ֹמ׌׾ ˝ 舅Ⳃ⴫מ׻׽ؤ٤طػ畘杼ؤتع؅峎׼׌ ˝ 냕ַ⺎榫䓪؅禴䧏׌׾ IBUFOBJOUFSO 

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ίϯςφΦʔέετϨʔγϣϯπʔϧ͕࣋ͭ ओͳػೳ / / IBUFOBJOUFSO 

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ίϯςφ഑ஔͷεέδϡʔϦϯά ˝ ؤ٤طػס㲔车丗؅䧗㲊׊յאס丗דׄؤ٤طػ؅玮י׾ ˝ بتطّס靷蕔؅ײיյלסُب٤מؤ٤طػ؅玮י׾־؅舅 Ⳃך鹟䥃׌׾ IBUFOBJOUFSO 

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ෛՙ෼ࢄ/αʔϏεσΟεΧόϦʔ IP IBUFOBJOUFSO 

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ηϧϑώʔϦϯά ˝ ُب٤מ꤃㲹ֿ氦榟׊ג㕙⺬ ˝ 塜䅻םُب٤מؤ٤طػ؅鿥糋׊泡׌ ˝ ؤ٤طػמ꤃㲹ֿ氦榟׊ג㕙⺬ ˝ 䑒釐ם⮆דׄؤ٤طػ؅玮י泡׌ ˝ ؤ٤طػ꤃㲹؅吾湳׌׾ג״סىٜتزؘشؠ IBUFOBJOUFSO 

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ΦʔτεέʔϦϯά ׆׿׼סتآ٭ٛ٤ء؅յ靷蕔敯媲מ䑴׋י舅Ⳃך车ֹ CPU IBUFOBJOUFSO 

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Kubernetesͱ͸ IBUFOBJOUFSO 

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Kubernetesͱ͸ kubernetes, k s Google OSS AWS EKS, Google Cloud GKE, Azure AKS IBUFOBJOUFSO 

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KubernetesͰԿ͕Ͱ͖Δͷ͔ʁ ؤ٤طػ؛٭آتعٝ٭ب٘٤ص٭ٜכ׊י䧏ח׬׀嚀耆؅┉鵟׽⪵נ⤓ֻיַ׾ / / Kubernetes IBUFOBJOUFSO 

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એݴతͳߏ੒؅ཧ Kubernetes (Manifest) 3 3 2 1 㵚拨氳םסעյ杯敯־׼ס䄐⮆؅⽜♐כ׊י鋗鳭׌׾亠䌋 IBUFOBJOUFSO 

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Kubernetesͷߏ੒ IBUFOBJOUFSO 

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Cluster Pod IBUFOBJOUFSO 

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Node Pod( ) or kubelet API IBUFOBJOUFSO 

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Pod Pod 1 IBUFOBJOUFSO 

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αΠυΧʔύλʔϯ pod ( ) Proxy, , IBUFOBJOUFSO 

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KubernetesͷϦιʔε IBUFOBJOUFSO 

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ϦιʔεͷΧςΰϦ Workloads Service Con g Storage Cluster Metadata Namespace IBUFOBJOUFSO 

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WorkloadsΧςΰϦ ؤ٤طػס㲔车מ꞊׌׾ٛخ٭ت Pod Pod IP Replicaset Pod Pod ( ) Pod IBUFOBJOUFSO 

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WorkloadsΧςΰϦ Deployment Replicaset IBUFOBJOUFSO 

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WorkloadsΧςΰϦ ♓┖յ☪㍑ס鐐갭ךע⮵榫ם׊ Job CronJob job IBUFOBJOUFSO 

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ServiceΧςΰϦ Pod Service L Ingress L IBUFOBJOUFSO 

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kubernetesΫϥελ಺ͷ௨৴ Pod localhost Pod Pod IP pod IP IP Pod IP Pod IP Pod pod IBUFOBJOUFSO 

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Service ϩʔυόϥϯα Pod ( ) 1 pod 2 pod pod IP ClusterIP ( ) NodePort ( ) LoadBalancer( ) etc IBUFOBJOUFSO 

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Service αʔϏεσΟεΧόϦ Pod DNS DNS [SERVICE].[NAMESPACE]. [RESOURCE_TYPE].cluster.local DNS A ( ) account.hatena- intern.svc.cluster.local IBUFOBJOUFSO 

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Ingress Ingress L (AWS ALB, Google Cloud GCLB, Nginx) Ingress HTTPS IBUFOBJOUFSO 

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Ϧιʔε؅ཧ IBUFOBJOUFSO 

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Manifest YAML kubectl apply -f k s (yaml) IBUFOBJOUFSO 

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Manifestͷαϯϓϧ(Deployment) apiVersion: apps/v1 kind: Deployment metadata: name: nginx-deployment labels: app: nginx spec: replicas: 3 selector: matchLabels: app: nginx template: metadata: labels: app: nginx spec: containers: - name: nginx image: nginx:1.14.2 ports: - containerPort: 80 IBUFOBJOUFSO 

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Manifestͷαϯϓϧ(Service) apiVersion: v1 kind: Service metadata: name: nginx-service spec: selector: app: nginx ports: - protocol: TCP port: 80 targetPort: 80 IBUFOBJOUFSO 

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Ϧιʔε੍ݶ Pod CPU Pod spec: containers: - name: nginx image: nginx:1.14.2 ports: - containerPort: 80 resources: requests: memory: "64Mi" cpu: "250m" limits: memory: "128Mi" cpu: "500m" IBUFOBJOUFSO 

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ϔϧενΣοΫ Pod Liveness Probe Pod Readiness Probe Pod Service IBUFOBJOUFSO 

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Մ༻ੑͱ֦ுੑ IBUFOBJOUFSO 

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Մ༻ੑ Replicaset Manifest Node Pod Node IBUFOBJOUFSO 

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ෛՙʹର͢Δ֦ுੑ Horizontal Pod Autoscaler (HPA) CPU Pod Vertical Pod Autoscaler (VPA) CPU, IBUFOBJOUFSO 

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՝୊Ͱར༻͢Δπʔϧ঺հ IBUFOBJOUFSO 

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Minikube Kubernetes https://minikube.sigs.k s.io/docs/start/ Kubernetes kind IBUFOBJOUFSO 

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Kustomize https://github.com/kubernetes-sigs/kustomize k s Dev, Stg, Prd Manifest kustomization.yaml secret con g IBUFOBJOUFSO 

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Skaffold https://ska old.dev/ k s skaffold.yaml docker IBUFOBJOUFSO 

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·ͱΊ IBUFOBJOUFSO 

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Kubernetesͷྑ͍ͱ͜Ζ Pod, Node Cloud Native Computing Fondation(CNCF) https://landscape.cncf.io/ CI/CD GitOps CI/CD Node Pod Spot IBUFOBJOUFSO 

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Kubernetesͷ೉͍͠ͱ͜Ζ 4 Blue/Green Node IBUFOBJOUFSO 