kubernetes-seminar

Kubernetes جૅษڧձ TIBOQV

ͶΒ͍ 2 ˓ ,VCFSOFUFTͷجૅΛֶͼࠓޙͷษڧʹ໾ཱͯͯ΋Β͏ ˓ ,VCFSOFUFTͷ͜ͱΛ޷͖ʹͳͬͯ΋Β͏

Agenda 3 ,VCFSFOFUFTͱ͸ LVCFDUMɾLVCFOTɾLVCFDUY 8PSLMPBETϦιʔε ೝূͱΞʔΩςΫνϟ
%JTDPWFSZ-#Ϧιʔε $POpH4USBHFϦιʔε 0UIFST ͍͞͝ʹ

Link 4 ˓ ϋϯζΦϯࢿྉ ˔ IUUQTHJUIVCDPNDIF[TIBOQVLTTFNJOBS ˓ ࿅श໰୊ ˔ IUUQTHJUIVCDPNEHLBOBUTJPT$,"%FYFSDJTFT

1. Kubernetesͱ͸ 5

ಡΈํ 6 ,VCFSOFUFT LT SEL@KIT

History 7

Kubernetes͸ԿΛߦ͏ʁ 8 ˓ ίϯςφͷ؅ཧΛ͍͍ײ͡ʹߦ͏

Kubernetesͷಛ௃ 9 ˓ ϚχϑΣετϑΝΠϧ ˓ εέʔϦϯά ˓ εέδϡʔϦϯά ˓ Ϧιʔε؅ཧ
˓ ηϧϑώʔϦϯά ˓ σʔλͷ؅ཧ SEL@KIT

2. kubectlɾkubensɾkubectx 10

KubeCLIπʔϧࡾॐ࢜ 11 ˓ LVCFDUM ˔ ,VCFSOFUFTʹର͢Δ͋ΔΏΔૢ࡞Λߦͬͯ͘ΕΔίϚϯυ ˔ ࣮ࡍʹ͸,VCFSOFUFTͷ3&45"1*TFSWFSʹରͯ͠ϦΫΤετ Λૹ͍ͬͯΔ ˓
LVCFOT ˔ OBNFTQBDFͷ੾Γସ͑Λ؆୯ʹͯ͘͠ΕΔ ˓ LVCFDUY ˔ DPOUFYUͷ੾Γସ͑Λ؆୯ʹͯ͘͠ΕΔ

kubectl جຊίϚϯυ 12 ˓ ALVCFDUMHFUϦιʔεA ˔ ࢦఆͨ͠ϦιʔεͷεςʔλεΛऔಘ ˔ ALVCFDUMHFUϦιʔε໊લPZBNMAͰͦͷϦιʔεͷϚ χϑΣετΛݟΔ͜ͱ΋Ͱ͖Δ
˓ ALVCFDUMEFTDSJCFϦιʔε໊લA ˔ ໊લͰࢦఆͨ͠ϦιʔεͷৄࡉΛදࣔ

kubectl جຊίϚϯυ 13 ˓ ALVCFDUMBQQMZGϑΝΠϧͷύεA ˔ ϚχϑΣετϑΝΠϧΛΫϥελʹద༻͢Δ ˓ ALVCFDUMSVOΦϓγϣϯA ˔
໋ྩతʹϦιʔεΛੜ੒͢Δ ˓ ALVCFDUMDSFBUFϦιʔε໊લA ˔ ࢦఆ໊ͨ͠લͰࢦఆͨ͠ϦιʔεΛ࡞੒ ˔ ࡞੒Ͱ͖ΔϦιʔεͷछྨʹ͸ݶΓ͋Γ

kubectl جຊίϚϯυ 14 ˓ ALVCFDUMEFMFUFϦιʔε໊લA ˔ ࢦఆͨ͠ϦιʔεΛ࡟আ ˔ GͰϚχϑΣετʹهࡌ͞Ε͍ͯΔϦιʔεΛ࡟আ ˓
ALVCFDUMFYQMBJOϦιʔε ϑΟʔϧυ໊ A ˔ ֤ϦιʔεͷϚχϑΣετϑΝΠϧʹهࡌ͢ΔϑΟʔϧυͷ৘ ใΛදࣔ

kubensɾkubectx 15 ˓ LVCFOT ˔ ΫϥελͷOBNFTQBDFΛҰཡදࣔ ˔ ALVCFOTOBNFTQBDF໊AͰOBNFTQBDFͷ੾Γସ͑ ˓ LVCFDUY
˔ ࣗ෼ͷॴ͍࣋ͯ͠ΔίϯςΩετΛҰཡදࣔ ˔ ALVCFDUYίϯςΩετ໊AͰίϯςΩετͷ੾Γସ͑

3. WorkloadsϦιʔε 16

ུ֓ਤ 17

Pod (po) 18 ˓ 8PSLMPETϦιʔεͷ࠷খ୯Ґ ˓ $POUBJOFS㱨1PE ˓ σβΠϯύλʔϯ ˔
αΠυΧʔύλʔϯ ˔ Ξϯόαμʔύλʔϯ ˔ Ξμϓλύλʔϯ

ReplicaSet (rs) 19 ˓ SFQMJDBTͰҡ͍࣋ͨ͠1PEͷ ਺Λࢦఆ ˓ 3FQMJDB4FU୯ମͰ࢖͏͜ͱ ͸͋·Γͳ͍ ˔
ޙड़ͷ%FQMPZNFOUΛ࢖͏

Deployment (deploy) 20 ˓ 3FQMJDB4FUΛ؅ཧ ˔ ϩʔϦϯάΞοϓσʔτ ˔ ϩʔϧόοΫ ˓
BQQMZ͢Δͱద౰ͳ3FQMJDB4FU Λ࡞੒

DeploymentͷϩʔϦϯάΞοϓσʔτ 21

DeploymentͷϩʔϦϯάΞοϓσʔτ 22

StatefulSet (sts) 23 ˓ σʔλΛӬଓԽ͢Δ࢓૊Έ Λඋ͑Δ ˓ 1PEͷ໊લʹΠϯσοΫε ͕αϑΟοΫεͱͯͭ͘͠

DaemonSet (ds) 24 ˓ ֤ϊʔυʹඞͣҰͭ1PEΛ ഑ஔ͢Δ ˓ /PEF4FMFDUPS౳Λ࢖͑͹ ഑ஔ͠ͳ͍͜ͱ΋Մೳ

Job 25 ˓ ίϯςφΛར༻ͯ͠Ұ౓ݶΓ ͷॲཧΛ࣮ߦͤ͞Δ ˓ ࣮ߦํ๏΍׬ྃ৚݅ΛࢦఆͰ ͖Δ ˔ /ฒྻͰ࣮ߦͯ͠΄͍͠
˔ /ճ੒ޭͨ͠Βਖ਼ৗऴྃʹͯ͠ ΄͍͠ ˔ /ճࣦഊͨ͠Β΋͏͠ͳͯ͘ ΋͍͍

CronJob (cj) 26 ˓ +PCΛఆظ࣮ߦ ͯ͘͠ΕΔ

4. ೝূͱΞʔΩςΫνϟ 27

NamespaceͱRBAC 28

ClusterͱNode 29

MasterNodeͱNode 30

5. Discovery & LB Ϧιʔε 31

ClusterIPɾExternalIP 32 ˓ $MVTUFS*1 ˔ Ϋϥελ಺෦ͷ*1 ˓ &YUFSOBM*1 ˔ Ϋϥελ֎෦ͱ΋ૄ௨ੑͷ͋
Δ*1

NodePort 33 ˓ ͦΕͧΕͷ/PEFͷࢦఆ 1PSU΁ͷτϥϑΟοΫΛɼ ͦΕʹඥ͚ͮͨ1PEͷ1PSU ΁సૹ ˓ $MVTUFS*1͸ࣗಈతʹൃߦ

LoadBalancer 34 ˓ Ϋϥελ֎ʹ-#Λ࡞੒ ˔ -#ʹ֎෦ૄ௨ੑͷ͋Δ*1Λ ෇༩

Ingress 35 ˓ -ͷϩʔυόϥϯα ˓ *OHSFTT$POUSPMMFS͕ ผ్ඞཁ

6. Conﬁg & Strage Ϧιʔε 36

Secret 37 ˓ ओʹػີ৘ใͷอ؅ʹ࢖͏ ˓ ,FZ7BMVFͷܗͰهड़ ˓ 7BMVF͸CBTFͰΤϯ ίʔυ

ConﬁgMap (cm) 38 ˓ 4FDSFUͷػີ৘ใ͡Όͳ͍൛ ˓ ϑΝΠϧͷத਎Λॻ͍ͯͦΕ ΛϚ΢ϯτͤ͞Δ࢖͍ํ΋Α ͘͢Δ

PersistentVolume (pv) 39 ˓ ӬଓԽྖҬͱͯ֬͠อ ˓ ༧ΊετϨʔδΛ༻ҙ͓ͯ͘͠

PersistentVolumeClaim (pvc) 40 ˓ 1FSTJTUFOU7PMVNF$MBJN ܦ༝Ͱ17Λ֬อ͢Δ ˓ 17$ͷཁٻʹ߹ͬͨ17͕ ෷͍ग़͞ΕΔ

7. Others 41

NetworkPolicy 42 ˓ 1PEಉ࢜ͷ௨৴Λ੍ޚ ˔ ྫ ಉ͡/BNFTQBDF಺ͷ1PE ͔͠௨৴Ͱ͖ͳ͍Α͏ʹ͢Δ

NodeSelectorɾNodeAfﬁnity 43 ˓ 1PEͷεέδϡʔϦϯά ઌΛࢦఆ ˓ 1PETQFD಺ʹهड़ ˓ /PEF"⒏OJUZͷํ͕ΑΓ ࡉ͔͍৚݅ઃఆ͕Մೳ

TaintɾTolerations 44 ˓ 5BJOUʢԚΕʣ ˔ 1PEΛεέδϡʔϦϯά ͤ͞ͳ͍ ˓ 5PMFSBUJPOTʢ׮༰ʣ ˔
5BJOUͷ͍ͭͨ/PEFʹ΋ εέδϡʔϦϯά͞ΕΔ

Ϧιʔεͷ੍ݶ 45 ˓ ࢖༻͢ΔϚγϯϦιʔεͷ ্ݶͱԼݶΛઃఆͰ͖Δ

8. ͍͞͝ʹ 46

঺հͰ͖ͳ͔ͬͨ͜ͱ 47 ˓ )PSJ[POUBM1PE"VUPTDBMFS ˓ 7FSUJDBM1PE"VUPTDBMFS ˓ %SBJOɼ$PSEPOɼ6ODPSEPO ˓ 1PE%JTSVQUJPO#VEHFU
˓ $VTUPN3FTPVSDF%FpOJUJPO ˓ $MVTUFS3PMFɼ$MVTUFS3PMF#JOEJOH ˓ 4FSWJDF"DDPVOU FUD

ࢀߟਤॻ 48 ˓ ,VFCFSOFUFT׬શΨΠυ ˔ ,VCFSOFUFTͷجຊཁૉΛ໢ཏ ͍ͯ͠Δ ˔ αϯϓϧίʔυɼਤ΋ଟ͘Θ͔ Γ΍͍͢
˓ ଞʹ΋,VCFSOFUFTຊ͸͋Δ ˔ ΋͠ങͬͨਓ͕͍ͨΒײ૝ڭ͑ ͍ͯͩ͘͞

Πϕϯτ& Slack 49 ˓ Πϕϯτ ˔ DPOOQBTTͰௐ΂ΔͱΘΓͱώοτ͢Δ ˔ ,VCFSOFUFT.FFUVQ5PLZPͳͲϏσΦ഑৴͍ͯ͠ΔΠϕϯτ΋͋Δ ˓
4MBDL ˔ ,VCFSOFUFTϢʔβͷͨΊͷϫʔΫεϖʔε͕͋Δ ˔ ೔ຊਓͷͨΊͷνϟϯωϧ΋͋Δ ˔ ௐ΂ͯ΋Θ͔Βͳ͍͜ͱ͸͜͜ʹ౤͛ͯΈΔͷ΋Α͍

50 ͓ർΕ༷Ͱͨ͠

kubernetes-seminar

kubernetes-seminar

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