Rancher Virtual Rodeo Japan 2020/07「入門編」

Rancher Virtual Rodeosは、DevOpsおよびITチームがKubernetesをどこにでもデプロイして管理するために、必要かつ実践的なスキルを提供するように設計された無料のオンラインワークショップです。コンテナおよびKubernetesの使用方法について興味がある方に向けたこのワークショップはRancherのテクニカルエキスパートによって実施されます。テクニカルエキスパートがRancher、Docker、Kubernetesをご紹介、Kubernetesクラスタをデプロイするための手順をご説明します。

今回はRancher Virtual Rodeo Japan「入門編」を実施します。コンテナ、KubernetesのメリットからRodeoのご紹介をメインにハンズオンも行います。今後は実践編なども企画しますので、このワークショップへのご理解を深めていただく内容とします。

Rancher Virtual Rodeoが実施する主要なトピックには次のものが含まれます。
DockerおよびKubernetesおさらい
Lab環境(HobbyFarm)説明
RKEによるクラスター構築
Rancher Server構築
Rancherによるクラスター構築
hello-worldアプリケーションをクラスターにデプロイ
WordPressをクラスターにデプロイ

Transcript

1. © Copyright 2019 Rancher Labs. All Rights Reserved. Confidential 1
   © Copyright 2020 Rancher Labs. All Rights Reserved. 1
   Rancher Rodeo
   Online Workshop
   Cheng
   Rancher Labs
   

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2. © Copyright 2020 Rancher Labs. All Rights Reserved. Confidential 2
   Objectives for the day
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   Docker͓ΑͼKubernetes͓͞Β͍
   l
   Lab؀ڥ HobbyFarm
   આ໌
   l
   RKEʹΑΔΫϥελʔߏங
   l
   Rancher Serverߏங
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   RancherʹΑΔΫϥελʔߏங
   l
   hello-worldΞϓϦέʔγϣϯΛΫϥελʔʹσϓϩΠ
   l
   WordPressΛΫϥελʔʹσϓϩΠ
   

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3. © Copyright 2020 Rancher Labs. All Rights Reserved. Confidential 3
   Forewarning
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   ͜ͷRodeo͸ɺKubernetesͱRancherͷॳ৺ऀ޲͚ʹઃܭ͞Ε͍ͯ·͢
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   ͜͜ʹ঺հ͞Ε͍ͯΔ಺༰͸ɺඞͣ͠΋ຊ൪؀ڥͰͷӡ༻ํ๏Ͱ͸͋Γ·ͤ
   Μ͕ɺຊ൪؀ڥ޲͚ͷجૅ஌ࣝͱߟ͍͖͍͑ͯͨͩͨͰ͢
   

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4. © Copyright 2019 Rancher Labs. All Rights Reserved. Confidential 4 4
   Container Images
   

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5. © Copyright 2020 Rancher Labs. All Rights Reserved. 5
   Container Image
   Application Code Application Dependencies
   Container Image
   

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6. © Copyright 2020 Rancher Labs. All Rights Reserved. 6
   Container Image
   Container Image
   Container
   Container
   Container
   

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7. © Copyright 2019 Rancher Labs. All Rights Reserved. Confidential 7 7
   Containers
   

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8. © Copyright 2020 Rancher Labs. All Rights Reserved. 8
   Containers
   l
   ΠϝʔδΛݩʹ࡞੒͞ΕΔԾ૝؀ڥͷ࣮ߦ෦෼ʢinstanceʣ
   l
   ϙʔλϏϦςΟr ΞϓϦέʔγϣϯΛ̍ճϏϧυ͢Ε͹ɺͲ͜Ͱ΋ಉ࣮͘͡ߦͰ͖Δ
   l
   ΞϓϦέʔγϣϯΛɺܰྔͳִ཭͞Εͨ؀ڥʹ࣮ߦͰ͖Δ
   l
   ΞϓϦέʔγϣϯͷΠϯελϯεΛਫฏํ޲ʹ؆୯ʹεέʔϦϯάͰ͖Δ
   

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9. © Copyright 2020 Rancher Labs. All Rights Reserved. 9
   Containers
   Source : https://www.docker.com/resources/what-container
   

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10. © Copyright 2019 Rancher Labs. All Rights Reserved. Confidential 10 10
    Registries
    

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11. © Copyright 2020 Rancher Labs. All Rights Reserved. 11
    Registries
    

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12. © Copyright 2020 Rancher Labs. All Rights Reserved. 12
    Registries
    l
    ΠϝʔδΛ֨ೲ͢ΔͨΊͷ৔ॴ
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    Public
    l
    Private
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    On-prem / Cloud
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    ੡඼ྫ
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    Amazon Elastic Container Registry
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    Azure Container Registry
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    Docker Hub
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    Ұ෦ͷ੡඼͸ػೳ֦ு΋͍ͯ͠Δ
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    Vulnerability scanning
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    LDAP / AD Support
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    Auditing
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    Replication
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    etc
    

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13. © Copyright 2020 Rancher Labs. All Rights Reserved. 13
    Containers are great……..but
    Managing a couple – no problem
    

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14. © Copyright 2020 Rancher Labs. All Rights Reserved. 14
    Containers are great……..but
    How about managing many? How do we address:
    Networking, Security, Scheduling, Automation, etc?
    

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15. © Copyright 2019 Rancher Labs. All Rights Reserved. Confidential 15 15
    K8s – Container Orchestration
    

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16. © Copyright 2020 Rancher Labs. All Rights Reserved. 16
    Kubernetes
    l
    Kubernetes͸ɺίϯςφԽ͞ΕͨϫʔΫϩʔυ΍αʔϏεΛ؅ཧ͢ΔͨΊͷɺ
    ϙʔλϒϧͰ֦ுੑͷ͋ΔΦʔϓϯιʔεϓϥοτϗʔϜͰ͢
    l
    Kubernetes͸ɺYAMLܗࣜ΍JSONܗࣜͰهड़ͨ͠એݴతͳίʔυʢظ଴ͳঢ়
    ଶʣʹΑͬͯɺσϓϩΠ͢Δίϯςφ΍पลϦιʔεΛ؅ཧ͠·͢
    

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17. © Copyright 2020 Rancher Labs. All Rights Reserved. 17
    Kubernetes Architecture
    l
    ControlplaneΫϥε
    λʔ؅ཧػೳɺ"1*Πϯ
    λϑΣʔεΛఏڙ
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    Etcd: ΩʔόϦϡʔετ
    ΞͰɺKubernetesͷશͯ
    ͷΫϥελʔ৘ใͷอଘ
    ৔ॴ
    l
    Worker: ίϯςφʢϫʔ
    Ϋϩʔυʣ͕࣮ࡍʹσϓ
    ϩΠ͞ΕΔϚγϯ
    API / CLI
    

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18. © Copyright 2020 Rancher Labs. All Rights Reserved. 18
    Kubernetes Resources - Pod
    l
    ϫʔΫϩʔυͷ࠷খ୯Ґ
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    αʔόʔԾ૝Խʹ͓͍ͯɺhypervisor্ͷ1ͭͷ
    VM૬౰ͷײ͡
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    1ͭҎ্ͷίϯςφΛؚΉ
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    ԼهϦιʔε΋ؚΉ:
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    Storage (ie shared volumes)
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    Networking
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    1ͭͷϊʔυׂ͕Γ౰ͯΒΕ͍ͯΔ
    

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19. © Copyright 2020 Rancher Labs. All Rights Reserved. 19
    Kubernetes Resources - Deployment
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    ෳ਺ͷಉ͡ Pod Λ؅ཧ͢ΔͨΊͷϦιʔε
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    ෳ਺ͷಉ͡ 1PEΛάϧʔϓͰ؅ཧ
    l
    Updating
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    Scaling
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    Rollback
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    ݱࡏͷঢ়ଶΛࢦఆ͞Εͨঢ়ଶ΁มߋ
    

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20. © Copyright 2020 Rancher Labs. All Rights Reserved. 20
    Kubernetes – Declarative Syntax
    ✓
    

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21. © Copyright 2020 Rancher Labs. All Rights Reserved. 21
    Kubernetes Resources - Service
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    Pod͸ඞͣ͠΋Ӭଓੑ͕ߴ͍΋ͷͰ͸ͳ͍
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    Podʹ௚઀ΞΫηε͠ͳ͍Ͱʂ
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    Podsͷू߹Ͱ࣮ߦ͞Ε͍ͯΔΞϓϦέʔγϣϯΛ
    ωοτϫʔΫαʔϏεͱͯ͠ެ։͢Δந৅తͳํ๏
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    Podͷηοτʹର͢Δ୯ҰͷIP/DNS໊Λఏڙ
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    Services͸಺෦ΞΫηε޲͚(ClusterIP)ͱ ֎෦ΞΫη
    ε޲͚(NodePort & Loadbalancer)ͷ2छྨ
    

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22. © Copyright 2020 Rancher Labs. All Rights Reserved. 22
    Kubernetes Resources - Service
    10.42.0.4 10.42.0.5 10.42.0.6
    Endpoints:
    10.42.0.4
    10.42.0.5
    10.42.0.6
    Type : LoadBalancer
    10.42.0.7
    Endpoints:
    10.42.0.4
    10.42.0.5
    10.42.0.7
    

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23. © Copyright 2020 Rancher Labs. All Rights Reserved. 23
    Kubernetes Resources - Ingress
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    Ϋϥελʔ಺ͷServiceʹର͢Δ֎෦͔ΒͷΞΫηεΛ
    ؅ཧ
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    ओʹHTTP
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    Serviceʹରͯ͠ɺ֎෦͔ΒΞΫηεͳՄೳURLΛఏڙ
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    ෛՙ෼ࢄ(Load Balance traffic) ͷػೳΛఏڙ
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    SSLऴ୺(Terminate) ͷػೳΛఏڙ
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    ໊લϕʔεͷԾ૝ϗεςΟϯάͷػೳΛఏڙ
    

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24. © Copyright 2020 Rancher Labs. All Rights Reserved. 24
    Kubernetes Resources - Ingress
    Kubernetes Cluster
    /bar
    /foo
    ServiceA ServiceB
    foo.bar.com/bar
    foo.bar.com/foo
    

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25. © Copyright 2020 Rancher Labs. All Rights Reserved. 25
    Kubernetes
    KubernetesΤίγεςϜ͕ɺ๲େͳ΋ͷͰ͢ - https://landscape.cncf.io
    (These are just the
    Storage projects)
    

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26. © Copyright 2020 Rancher Labs. All Rights Reserved. 26
    RancherがKubernetesにもたらすもの
    26
    Network & Storage
    Registry
    App Catalog
    Monitoring
    Kubernetes
    Container Runtime
    CI/CD
    Service Mesh
    Logging
    Security RBAC & PSP
    Authentication
    What Rancher takes an SLA on
    Manage all this? … or this?
    Rancher Certified Integrations
    Cloud
    Datacenter
    Dev Branch Edge
    Google
    GKE
    Azure
    AKS
    Amazon
    EKS
    

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27. © Copyright 2020 Rancher Labs. All Rights Reserved. 27
    Lab環境(HobbyFarm)説明
    l
    https://learn.eu1.hobbyfarm.io/login ΁ΞΫηε
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    [e-mail] ɺ [Access Code]ɺٴͼ[password] ͰϢʔβʔΛొ࿥
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    Access Code:
    

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28. © Copyright 2020 Rancher Labs. All Rights Reserved. 28
    Lab環境(HobbyFarm)説明
    l
    [e-mail] ɺ [password] ͰϩάΠϯ
    

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29. © Copyright 2020 Rancher Labs. All Rights Reserved. 29
    Lab環境(HobbyFarm)説明
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    [Start Scenario] Ͱ։࢝
    

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30. © Copyright 2020 Rancher Labs. All Rights Reserved. 30
    Lab環境(HobbyFarm)説明
    l
    ؀ڥߏ੒
    αʔόʔɿrancher01 αʔόʔɿcluster01
    

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31. © Copyright 2020 Rancher Labs. All Rights Reserved. 31
    31
    What is RKE
    RKE͸ɺΫϥ΢υɺΦϯϓϨϛεɺٴͼϩʔΧϧ؀ڥʹkubernetesΫϥελ
    Λ؆୯ʹσϓϩΠͰ͖ΔCLIπʔϧͰ͢ɻ
    

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32. © Copyright 2020 Rancher Labs. All Rights Reserved. 32
    32
    What is RKE
    ಛ௃
    • ର৅ϊʔυʹ44)઀ଓͯ͠ϓϩϏδϣχϯάΛ࣮ࢪ
    • LVCFSOFUFTͷ֤छίϯϙʔωϯτ FUDE΍BQJTFSWFSͳ
    Ͳ
    Λίϯςφͱͯ͠ىಈ
    • )"ͳΫϥελΛߏஙՄೳ
    

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33. © Copyright 2020 Rancher Labs. All Rights Reserved. 33
    33
    What is RKE
    ࢖͍ํ
    • ࣄલʹΫϥελʔ༻ͷϊʔυΛ༻ҙ
    • SLFఆٛϑΝΠϧΛ࡞੒
    • SLF VQ࣮ߦͰΫϥελʔߏங
    

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34. © Copyright 2020 Rancher Labs. All Rights Reserved. 34
    34
    What is RKE
    

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35. © Copyright 2019 Rancher Labs. All Rights Reserved. Confidential 35
    © Copyright 2020 Rancher Labs. All Rights Reserved. 35
    Intermission
    

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