Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
Lecture__1.pdf
Search
ry
February 10, 2020
Education
1
270
Lecture__1.pdf
ry
February 10, 2020
Tweet
Share
More Decks by ry
See All by ry
eBPF Tools on Kubernetes part1
ry
0
130
Vault Secrets Operator Tutorial
ry
0
420
KyvernoとRed Hat ACMを用いたマルチクラスターの一元的なポリシー制御
ry
0
820
明日から始められるKyvernoを用いたポリシー制御
ry
3
660
CNDT2022 k8snovice Community introduction
ry
0
100
Policy Engine on Kubernetes
ry
1
1.2k
ConfigMap and Secret
ry
0
300
Policy Manager試してみた!
ry
0
350
Kubernetes APIに Pod内からアクセスしてみた
ry
1
1.4k
Other Decks in Education
See All in Education
電子計算機のイロハ
kosugitti
1
1.5k
week6@tcue2024
nonxxxizm
0
610
A question of time
ange
0
860
Amazon Connectを利用したCloudWatch Alarm電話通知
junghyeonjae
0
160
Case Studies and Course Review - Lecture 12 - Information Visualisation (4019538FNR)
signer
PRO
1
1.5k
week11_2024_.pdf
nonxxxizm
0
540
Zoom-ohjeet
matleenalaakso
7
7.1k
Droid Knights 2024 Accessibility in Android
nanamare
0
310
みんなのコード2023年度活動報告・2024年度活動方針/Annual report2023
codeforeveryone
0
210
AGU情報社会論 2024 #06 "CC BY ND 改変禁止"
fullfull
0
120
#英語力ランキング批判:EF-EPI,TOEFLスコア,英語教育実施状況調査
terasawat
0
490
困ったときのガイドライン / We Support You in Any Situation
yasulab
2
3.7k
Featured
See All Featured
Save Time (by Creating Custom Rails Generators)
garrettdimon
PRO
24
610
Unsuck your backbone
ammeep
667
57k
Speed Design
sergeychernyshev
22
430
Designing with Data
zakiwarfel
98
5k
Infographics Made Easy
chrislema
239
18k
Robots, Beer and Maslow
schacon
PRO
157
8.2k
The Cost Of JavaScript in 2023
addyosmani
42
5.6k
10 Git Anti Patterns You Should be Aware of
lemiorhan
653
58k
Imperfection Machines: The Place of Print at Facebook
scottboms
263
13k
How To Stay Up To Date on Web Technology
chriscoyier
786
250k
CoffeeScript is Beautiful & I Never Want to Write Plain JavaScript Again
sstephenson
157
15k
No one is an island. Learnings from fostering a developers community.
thoeni
18
2.9k
Transcript
Lecture for today’s theme ry (@URyo_0213) 2020/2/10 Kubernetes Wakaran Tokyo
#1
Podͷ࡞ ղ • metadata Podʹ༩͑Δmetadata - Podʹ`nginx`ͱ͍͏໊લ - ֎෦͔ΒͷҹͱͳΔlabel Λ༩͍ͯ͠Δɻ
• spec.containers Containerͷใ Container name: nginx image: nginx (version 1.17.5) exported port: 80
Podͱ • WorkloadsϦιʔεͷ࠷খ୯Ґ • 1ͭҎ্ͷίϯςφ͔Βߏ͞ΕΔ • PodͷίϯςφɺωοτϫʔΫΛڞ༗͢Δ ·ͯΑ… ͲΜͳ࣌ʹPodͷதʹ ෳίϯςφೖΕΔΜͩʁʁʁ
جຊύλʔϯ • αΠυΧʔύλʔϯ • Ξϯόαμύλʔϯ • Ξμϓλύλʔϯ ~ Ԡ༻ ~
• ελοΫɾΪϟβʔ • etc…
جຊύλʔϯ • αΠυΧʔύλʔϯ • Ξϯόαμύλʔϯ • Ξμϓλύλʔϯ ~ Ԡ༻ ~
• ελοΫɾΪϟβʔ • etc…
αΠυΧʔύλʔϯ • PodͷதͰɺmainίϯςφ(ΞϓϦέʔγϣϯ )ͷػೳ֦ு ิॿΛ͢ΔίϯςφΛΈࠐΉύλʔϯ ྫ) αΠυΧʔproxy Proxy App http://10.200.100.20
http://localhost App Pod
Ξϯόαμύλʔϯ • ֎෦ͷαʔϏεͷհͱͳΔίϯςφΛಉҰPodʹ࣋ͭ ύλʔϯ ྫ) γϟʔσΟϯάΞϯόαμ App Ambassador http://localhost:port shard
#3 shard #2 shard #1 App Pod
Ξμϓλύλʔϯ • ֎෦ͷαʔϏε(ࢹLogging)͔Βͷ൚༻తͳΠϯλʔϑΣ ΠεΛఏڙ͢ΔίϯςφΛΈࠐΉύλʔϯ ྫ) Redis Exporter + Prometheus Redis
Adapter - Exporter EternalService - Prometheus
Workloads Ϧιʔεͱ???
Workloads Ϧιʔε • Pod • ReplicaSet • Deployment • DaemonSet
• StatefulSet • Job • CronJob
Workloads Ϧιʔε • Pod • ReplicaSet • Deployment • DaemonSet
• StatefulSet • Job • CronJob
ReplicaSet ࢦఆ͞ΕͨཧͷϨϓϦΧʹ͢ΔͨΊʹPodͷ࡞ ͱআΛߦ͏Ϧιʔε ྫ) replica = 4
ReplicaSet manifest • Selector spec.template.metadata.label Λࢀর͠ɺReplicaΛੜ͢Δର ͷPodΛબ͢Δɻ ɹ(spec.selector.matchLabelsͱ spec.template.labels͕Ұக͠ͳ͍ɹ ɹ߹ɺError͕ग़ͯ࡞͕Ͱ͖ͳ͍)
• templateԼPodͷmanifestͱҰॹ
Deployment DeploymentReplicaSetͷཧΛ͠ɺϩʔϦϯά ΞοϓσʔτϩʔϧόοΫͳͲͷએݴతͳΞοϓ σʔτػೳΛఏڙ ྫ) replica = 4 (RollingUpdateத) Deployment
New Old
Deployment manifest • ReplicaSetͱಉ༷ • UpdateStrategy(spec.strategy) ʹؔͯ͠লུ
DaemonSet ReplicaSetͷಛघܥ ֤Nodeʹ1ͭͣͭஔ͢ΔͨΊɺReplicaͷࢦఆ ͕Ͱ͖ͳ͍ɻ( ஔͨ͘͠ͳ͍Node͕͋Δ߹ɺ Node Anti-AffinityͰ੍ޚՄೳ)
DaemonSet manifest • ReplicaSetͷΑ͏ͳspec.replica͕ ࢦఆͰ͖ͳ͍͕ɺͦΕҎ֎ಉ༷
StatefulSet ReplicaSetͷಛघܥ εέʔϦϯά(ݮΒ࣌͢1൪େ͖͍ΠϯσοΫε ͔Β)ɺPodͷ࡞(1ͭͣͭॱʹ࡞)ͳͲڍಈʹ ҧ͍͕͋Δɻ [ReplicaSet໊] - [ϥϯμϜͳจࣈྻ] [StatefulSet໊] -
[index൪߸] RepliaSet StatefulSet
StatefulSet manifest • جຊReplicaSetͱҰॹ • spec.serviceNameʹͯservice໊ Λࢦఆ͢Δඞཁ͕͋Δɻ
Replicaͷ࡞ ղ • ΞϓϦέʔγϣϯΛಈ͔͢ࡍɺ DBͱҧ͍ɺॊೈͳΞοϓ σʔτͷઓུΛऔΓ͍ͨɻ (× StatefulSet, DaemonSet) •
ϦιʔεΛߟྀͨ͠Nodeஔ ͕ඞཁʹͳΔɻ (× DaemonSet) ΑͬͯDeploymentΛબ