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Kubernetes Handson Osaka
Docker/Kubernetes 実践コンテナ開発入門 Japan Tour 2019 in Osaka
stormcat24
January 31, 2019
Transcript
111 slides
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Kubernetes Handson - Docker/Kubernetes ࣮ફίϯςφ։ൃೖ Japan Tour 2019 in Osaka-
2019.01.30 - 01.31 -
PVUMJOF ‣ NJOͳͥࠓ,VCFSOFUFTΛΔͷ͔ ‣ NJO-PDBMͰ͍͍ײ͡ͷ,VCFSOFUFT։ൃڥΛଗ͑Δ ‣ NJO,VCFSOFUFTͷجຊతͳϦιʔεɺΞϓϦέʔγϣϯͷσϓϩΠ ‣ NJOٳܜ ‣
NJO)FMNͰΞϓϦέʔγϣϯΛύοέʔδϯά͢Δ ‣ NJOTLBGGPMEͰ͍͍ײ͡ʹ։ൃΛճͯ͠ΈΔ ‣ NJOͦͷଞϢʔεέʔεɺศརπʔϧհ ‣ Γ༧උ࣌ؒɾ࣭ٙλΠϜ -
%BTICPBSEϩάΠϯ༻Ϣʔβʔ࡞ ϩάΠϯ༻Ϣʔβʔ࡞ LVCFDUMBQQMZGIUUQTSBXHJUIVCVTFSDPOUFOUDPNTUPSNDBULVCFSOFUFT IBOETPONBTUFSTFUVQBENJOVTFSZBNM ΞΫηετʔΫϯͷදࣔ LVCFDUMOLVCFTZTUFNEFTDSJCFTFDSFU LVCFDUMOLVCFTZTUFNHFUTFDSFUc HSFQBENJOVTFScBXL\QSJOU^ %BUB
DBDSUCZUFT OBNFTQBDFCZUFT UPLFOFZ+IC(DJ0J+46[*/J*T*NUQ;$**J+FZʜʜ -
,VCFSOFUFTͷϦιʔε %FQMPZNFOU /BNFTQBDF 4FSWJDF *OHSFTT $POGJH.BQ %BFNPO4FU 4UBUFGVM4FU +PC 1PE
3FQMJDB4FU +PC $SPO+PC ˞΄ΜͷҰ෦Ͱ͢ -
1PEͷϚχϑΣετϑΝΠϧ BQJ7FSTJPOW LJOE1PE NFUBEBUB OBNFTJNQMFFDIP TQFD DPOUBJOFST OBNFOHJOY JNBHFHJIZPEPDLFSOHJOYQSPYZMBUFTU FOW
OBNF#"$,&/%@)045 WBMVFMPDBMIPTU QPSUT DPOUBJOFS1PSU OBNFFDIP JNBHFHJIZPEPDLFSFDIPMBUFTU QPSUT DPOUBJOFS1PSU -
1PEͷૢ࡞ FDIPίϯςφͷϩάʢඪ४ग़ྗʣͷ֬ೝ LVCFDUMMPHTGTJNQMFFDIPDFDIP TUBSUTFSWFS OHJOYίϯςφʹ44)ϩάΠϯͬΆ͍͜ͱΛ͢ΔʢTIͷ࣮ߦʣ LVCFDUMFYFDJUTJNQMFFDIPTIDOHJOY QMFBTFJOQVU 1PEΛআ
LVCFDUMEFMFUFQPETJNQMFFDIP QPETJNQMFFDIPEFMFUFE ϑΝΠϧΛͬͯআՄೳ LVCFDUMEFMFUFGSFTPVSDFTJNQMFFDIPZBNM QPETJNQMFFDIPEFMFUFE -
3FQMJDB4FUͷϚχϑΣετϑΝΠϧ BQJ7FSTJPOBQQTW LJOE3FQMJDB4FU NFUBEBUB OBNFTJNQMFFDIP MBCFMT BQQFDIP TQFD SFQMJDBT TFMFDUPS
NBUDI-BCFMT BQQFDIP UFNQMBUF NFUBEBUB MBCFMT BQQFDIP TQFD DPOUBJOFST OBNFOHJOY JNBHFHJIZPEPDLFSOHJOYMBUFTU FOW OBNF#"$,&/%@)045 WBMVFMPDBMIPTU QPSUT DPOUBJOFS1PSU OBNFFDIP JNBHFHJIZPEPDLFSFDIPMBUFTU QPSUT DPOUBJOFS1PSU ҙͷMBCFMTΛ͚ͭΒΕΔ ϦιʔεͷϑΟϧλϦϯάʹ༗༻ UFNQMBUFҎԼ1PEϦιʔεʹ͓͚Δఆٛͱಉ͡ -
3FQMJDB4FUͷ࡞ 3FQMJDB4FUͷ࡞ LVCFDUMBQQMZGSFTPVSDFTJNQMFFDIPSTZBNM SFQMJDBTFUBQQTTJNQMFFDIPDSFBUFE ࡞ͨ͠3FQMJDB4FU 1PEͷ֬ೝ LVCFDUMHFUST QPETFMFDUPSBQQFDIP /".&%&4*3&%$633&/53&"%:"(& SFQMJDBTFUFYUFOTJPOTTJNQMFFDIPN
/".&3&"%:45"5643&45"354"(& QPETJNQMFFDIPGCQ3VOOJOHN QPETJNQMFFDIPGNOXM3VOOJOHN QPETJNQMFFDIPSKOE3VOOJOHN -
%FQMPZNFOUͷ࡞ %FQMPZNFOUͷ࡞ LVCFDUMBQQMZGSFTPVSDFTJNQMFFDIPEFQMPZNFOUZBNM EFQMPZNFOUBQQTTJNQMFFDIPDSFBUFE ࡞ͨ͠%FQMPZNFOU 3FQMJDB4FU 1PEͷ֬ೝ LVCFDUMHFUEFQMPZ ST QPETFMFDUPSBQQFDIP
/".&%&4*3&%$633&/56150%"5&"7"*-"#-&"(& EFQMPZNFOUFYUFOTJPOTTJNQMFFDIPT /".&%&4*3&%$633&/53&"%:"(& SFQMJDBTFUFYUFOTJPOTTJNQMFFDIPEECGCT /".&3&"%:45"5643&45"354"(& QPETJNQMFFDIPEECGCHKY3VOOJOHT QPETJNQMFFDIPEECGCE[G3VOOJOHT QPETJNQMFFDIPEECGCRHU⒎3VOOJOHT -
4FSWJDF ‣ 1PEͷू߹ʹର͢ΔϧʔςΟϯάαʔϏεσΟεΧόϦػೳ Λఏڙ͢ΔϦιʔε ‣ ಉ͡छྨͷෳ1PEʹର͠ɺτϥϑΟοΫΛྲྀͨ͢Ίͷϩʔυ όϥϯαʔͱͯ͠ͷػೳ࣋ͭ ‣ 4FSWJDF͔ΒͷτϥϑΟοΫͷసૹɺઃఆ͞ΕͨTFMFDUPSTͷ ϥϕϧͷʹΑܾͬͯఆ͞ΕΔ
‣ ,VCFSOFUFTΫϥελ෦Ͱɺ4FSWJDFͷ໊લͰ4FSWJDFʹ໊લ ղܾͰ͖Δ -
σόοά༻1PE͔Β֬ೝ σόοά༻ίϯςφ LVCFDUMSVOJSNUUZEFCVHJNBHFHJIZPEPDLFSGVOEBNFOUBMSFTUBSU/FWFS CBTIJM EFCVH ࡞ͨ͠4FSWJDFʹରͯ͠)5513FRVFTU EFCVHDVSMIUUQTJNQMFFDIP )FMMP%PDLFS LVCFDUMMPHTGTJNQMFFDIPTQSJOHGCCDUDDFDIP TUBSUTFSWFS
SFDFJWFESFRVFTU LVCFDUMMPHTGTJNQMFFDIPTVNNFSHWWDFDIP TUBSUTFSWFS ˞ϦΫΤετ͕དྷΔͷTQSJOH͚ͩ -
SFMFBTFϥϕϧΛม͑Δ BQJ7FSTJPOW LJOE4FSWJDF NFUBEBUB OBNFTJNQMFFDIP MBCFMT BQQFDIP TQFD TFMFDUPS BQQFDIP
SFMFBTFTVNNFS QPSUT OBNFIUUQ QPSU TQSJOH͔ΒTVNNFSʹม͑Δ -
*OHSFTTͷϚχϑΣετ BQJ7FSTJPOFYUFOTJPOTWCFUB LJOE*OHSFTT NFUBEBUB OBNFTJNQMFFDIP MBCFMT BQQFDIP TQFD SVMFT IPTUFDIPHJIZPMPDBM
IUUQ QBUIT QBUI CBDLFOE TFSWJDF/BNFTJNQMFFDIP TFSWJDF1PSU ϦΫΤετΛड͚ΔυϝΠϯ όοΫΤϯυͷઃఆ -
8FCΞϓϦέʔγϣϯͷجຊతͳྲྀΕ ‣ ΞϓϦέʔγϣϯΛίϯςφԽ͢Δ ‣ %FQMPZNFOUΛͭ͘Δ ‣ ΞϓϦέʔγϣϯͷڍಈڥมͰ ‣ ඞཁʹԠͯ͡$POGJH.BQ ‣
4FSWJDFΛͭ͘Δ ‣ *OHSFTTΛͭ͘Δ -
͠ෳڥ͋Δ߹ʁ EFQMPZNFOUZBNM TFSWJDFZBNM JOHSFTTZBNM EFWFMPQNFOU TUBHJOH QSPEVDUJPO EFQMPZNFOUZBNM TFSWJDFZBNM JOHSFTTZBNM
EFQMPZNFOUZBNM TFSWJDFZBNM JOHSFTTZBNM -
)FMNηοτΞοϓ )PNFCSFXͳΒ CSFXJOTUBMMLVCFSOFUFTIFMN όΠφϦμϯϩʔυͳΒ IUUQTHJUIVCDPNIFMNIFMNSFMFBTFTUBHW IFMNॳظԽʢ5JMMFSͱ͍͏1PE͕σϓϩΠ͞ΕΔʣ IFMNJOJUXBJU IFMN֬ೝ IFMNWFSTJPO $MJFOUWFSTJPO7FSTJPO\4FN7FSW
(JU$PNNJUzBDz (JU5SFF4UBUFDMFBO^ 4FSWFSWFSTJPO7FSTJPO\4FN7FSW (JU$PNNJUzBDz (JU5SFF4UBUFDMFBO^ -
$IBSUͷߏ USFF ᵓᴷᴷ$IBSUZBNM ᵓᴷᴷ08/&34 ᵓᴷᴷ3&"%.&NE ᵓᴷᴷSFRVJSFNFOUTMPDL ᵓᴷᴷSFRVJSFNFOUTZBNM ᵓᴷᴷUFNQMBUFT ᴹᵓᴷᴷ/05&4UYU ᴹᵓᴷᴷ@IFMQFSTUQM
ᴹᵓᴷᴷEFQMPZNFOUZBNM ᴹᵓᴷᴷJOHSFTTZBNM ᴹᵓᴷᴷQECZBNM ᴹᵓᴷᴷQWDZBNM ᴹᵓᴷᴷTFDSFUTZBNM ᴹᵋᴷᴷTWDZBNM ᵋᴷᴷWBMVFTZBNM σϑΥϧτWBMVFϑΝΠϧ -
SFENJOFσϓϩΠ σϑΥϧτΛ্ॻ͖ͯ͠σϓϩΠ IFMNJOTUBMMGIFMNSFENJOFSFENJOFWBMVFTZBNMOBNFSFENJOFTUBCMFSFENJOF IFMNͰ࡞ΒΕͨϦιʔεΛ֬ೝ LVCFDUMHFUJOH TWD QPEMSFMFBTFSFENJOF /".&)0454"%%3&4410354"(& JOHSFTTFYUFOTJPOTSFENJOFIBOETPOMPDBMSFENJOFSFENJOFIBOETPOMPDBMMPDBMIPTU N
/".&5:1&$-645&3*1&95&3/"-*11035 4 "(& TFSWJDFSFENJOFNBSJBEC$MVTUFS*1OPOF5$1N TFSWJDFSFENJOFSFENJOF-PBE#BMBODFSQFOEJOH5$1N /".&3&"%:45"5643&45"354"(& QPESFENJOFNBSJBEC3VOOJOHN QPESFENJOFSFENJOFCEYG[W3VOOJOHN -
ΧελϜ$IBSUͷ࡞ ‣ IFMNDSFBUFDIBSU໊Ͱ$IBSUͷςϯϓϨʔτΛ࡞Ͱ͖Δ ‣ EFQMPZNFOUZBNM TFSWJDFZBNM JOHSFTTZBNMσϑΥϧτͰ༻ҙ͞Εͯ Δ ‣ σϑΥϧτWBMVFϑΝΠϧσϑΥϧτͰ࡞͞ΕΔ
‣ TJNQMFFDIPͷ$IBSUΛ༻ҙͨ͠ ‣ LVCFSOFUFTIBOETPOIFMNTJNQMFFDIP -
)FMNίπ ‣ TUBCMFʹ͋Δ$IBSUσϑΥϧτWBMVFϑΝΠϧΛݟΕɺΧελϚΠζͷϙΠϯ τ͕Θ͔Δ ‣ ಈ͖Λਂ۷Γ͚ͨΕςϯϓϨʔτݟΔ ‣ ͓٬༷͕ඞཁͳιϑτΣΞ͍͍ͨͯ4UBCMFʹ͋Γ·͢Αʁ ‣ ,VCFSOFUFT্ʹ)FMNΛͬͯߏங͢ΔͱָͰ͢Ͷ
‣ ΧελϜ$IBSUςϯϓϨʔτʹཔΔ ‣ ϙʔλϏϦςΟΛߴΊΔͨΊʹɺςϯϓϨʔτύϥϝʔλͷຒΊࠐΈɺσϑΥ ϧτWBMVFΛඋ͢Δ ‣ IFMNMJOU׆༻͠Α͏ -
,VCFSOFUFTͷ։ൃΛճ͢جຊϑϩʔ ‣ ίʔυΛॻ͘ ‣ %PDLFSΠϝʔδϏϧυ ‣ $*·Θ͢PSϩʔΧϧϏϧυ ‣ %FQMPZNFOUߋ৽ ‣
৽͍͠1PEʹϩʔϦϯάΞοϓσʔτ ͦͦ͜͜μϧ͍ τϥΠΞϯυΤϥʔ͕໘ɹ -
4LBGGPMEͱ ‣ IUUQTHJUIVCDPN(PPHMF$POUBJOFS5PPMTTLBGGPME ‣ CSFXJOTUBMMTLBGGPME ‣ (PPHMFۘ ‣ ,VCFSOFUFTΞϓϦέʔγϣϯͷϏϧυɾσϓϩΠͱ͍ͬͨ܁Γฦ͠ߦΘ ΕΔجຊϫʔΫϑϩʔΛαϙʔτ͢ΔͨΊͷπʔϧ
‣ ,VTUPNJ[F )FMN #B[FM +JC %PDLFS$PNQPTFͱ࿈ܞՄೳ -
,VTUPNJ[F ‣ ϚχϑΣετϑΝΠϧΛύοέʔδϯά͢ΔͨΊͷπʔϧ ‣ )FMNͱͷҧ͍ɹ ‣ )FMNΫϥελʹ5JMMFS͕ඞཁͰɺIFMNίϚϯυΛͬͯσϓϩΠ͢Δ ‣ ,VTUPNJ[FɺϚχϑΣετϑΝΠϧ܈ͷܗΛ࡞Δ͜ͱ͚͕ͩతɻσϓϩ ΠLVCFDUMBQQMZΛͬͯߦ͏
‣ LVCFDUMʹऔΓࠐ·ΕΔʢ༧ఆͩͬͨʣ ‣ ݄ʹϚʔδ ‣ ݄ʹSFWFSU͞ΕΔ͆͆͆ ‣ LVCFDUMʹೖΕΔͷͪΐͬͱҧ͏ΑͶ -
TLBGGPMELVTUPNJ[FLVTUPNJ[BUJPOZBNM ‣ ϚχϑΣετ܈ΛͲͷΑ͏ʹߏ͠ɺύοέʔδ͢Δ͔Λఆٛ͢ΔϑΝΠ ϧ ‣ ؆୯ʹݴ͏ͱɺϚχϑΣετΛ্ॻ͖ͯ͠ɺผͷϚχϑΣετΛ࡞Δ ‣ %FQMPZNFOU 4FSWJDF *OHSFTTΛ·ͱΊͨͭͷϑΝΠϧΛ࡞ΓɺLVCFDUM
ʹ৯ΘͤΔ SFTPVSDFT EFQMPZNFOUZBNM QBUDIFT QBUDIZBNM -
TLBGGPMELVTUPNJ[FEFQMPZNFOUZBNM BQJ7FSTJPOBQQTW LJOE%FQMPZNFOU NFUBEBUB OBNFLVTUPNJ[FUFTU MBCFMT BQQLVTUPNJ[FUFTU TQFD SFQMJDBT TFMFDUPS
NBUDI-BCFMT BQQLVTUPNJ[FUFTU UFNQMBUF NFUBEBUB MBCFMT BQQLVTUPNJ[FUFTU TQFD DPOUBJOFST OBNFLVTUPNJ[FUFTU JNBHFHDSJPLTTLB⒎PMEOPUBWBMJEJNBHF ˞IFMNͱҧ͍ɺςϯϓϨʔτͰͳ͍ ଘࡏ͠ͳ͍దͳΠϝʔδΛࢦఆ -
TLBGGPMELVTUPNJ[FQBUDIZBNM BQJ7FSTJPOBQQTW LJOE%FQMPZNFOU NFUBEBUB OBNFLVTUPNJ[FUFTU TQFD UFNQMBUF TQFD DPOUBJOFST OBNFLVTUPNJ[FUFTU
JNBHFJOEFYEPDLFSJPMJCSBSZCVTZCPY DPNNBOE TMFFQ ˞ͭલͷEFQMPZNFOUZBNMΛ্ॻ͖͢ΔͨΊͷϚχϑΣετ ͜ͷϑΝΠϧࣗମϚχϑΣετϑΝΠϧͱཱͯ͠ ͜͜ͷ༰Ͱ্ॻ͖͞ΕΔɹ -
LVTUPNJ[FͰϚχϑΣετ࡞ ϚχϑΣετϑΝΠϧΛߏங LVTUPNJ[FCVJMETLB⒎PMELVTUPNJ[F BQJ7FSTJPOBQQTW LJOE%FQMPZNFOU NFUBEBUB MBCFMT BQQLVTUPNJ[FUFTU OBNFLVTUPNJ[FUFTU TQFD
SFQMJDBT TFMFDUPS NBUDI-BCFMT BQQLVTUPNJ[FUFTU UFNQMBUF NFUBEBUB MBCFMT BQQLVTUPNJ[FUFTU TQFD DPOUBJOFST DPNNBOE TMFFQ -
LVTUPNJ[F LVCFDUM ϚχϑΣετΛߏஙͯ͠ඪ४ग़ྗʹදࣔ LVTUPNJ[FCVJMETLB⒎PMELVTUPNJ[F BQJ7FSTJPOBQQTW LJOE%FQMPZNFOU NFUBEBUB MBCFMT BQQLVTUPNJ[FUFTU
ҰؾʹσϓϩΠ LVTUPNJ[FCVJMETLB⒎PMELVTUPNJ[FcLVCFDUMBQQMZG EFQMPZNFOUBQQTLVTUPNJ[FUFTUDSFBUFE Ұؾʹআ LVTUPNJ[FCVJMETLB⒎PMELVTUPNJ[FcLVCFDUMEFMFUFG -
LVTUPNJ[FͱTLBGGPMEΈ߹Θͤ EFWίϚϯυͰɺσϓϩΠͱมߋݕͷػ TLB⒎PMEEFW 4UBSUJOHCVJME 'PVOE<EPDLFSGPSEFTLUPQ>DPOUFYU VTJOHMPDBMEPDLFSEBFNPO #VJMEDPNQMFUFJOT 4UBSUJOHUFTU 5FTUDPNQMFUFJOT 4UBSUJOHEFQMPZ
EFQMPZNFOUBQQTLVTUPNJ[FUFTUDSFBUFE %FQMPZDPNQMFUFJONT 8BUDIJOHGPSDIBOHFTFWFSZT ͜ͷঢ়ଶͰϚχϑΣετϑΝΠϧΛมߋͯ͠ΈΑ͏ -
)1"ͷϚχϑΣετ apiVersion: autoscaling/v2beta1 kind: HorizontalPodAutoscaler metadata: name: echo spec: scaleTargetRef:
apiVersion: apps/v1 kind: Deployment name: echo minReplicas: 1 maxReplicas: 3 metrics: - type: Resource resource: name: cpu targetAverageUtilization: 40 -
,VCFSOFUFT"VUPTDBMFS ‣ IUUQTHJUIVCDPNLVCFSOFUFTBVUPTDBMFS ‣ ඞཁͳͷ1PEΛஔͰ͖Δ͚ͩͷϚγϯϦιʔε͕ແ͍߹ʹɺϊʔυ Λ૿͢Έ ‣ ϚωʔδυͰجຊతʹඪ४ରԠ ‣ ඇϚωʔδυͰ)FMNͰೖΕ·͠ΐ͏
‣ IFMNJOTUBMMOBNFTQBDFLVCFTZTUFNOBNFDMVTUFSBVUPTDBMFS TUBCMFDMVTUFSBVUPTDBMFS ‣ "84ͩͱ"VUP4DBMJOH(SPVQͷ3BUF-JNJUى͘͜͢͠ͳΔͷͰҙ -
ͦͷଞࡉ͔͍ͷ ‣ LVCFDUY ‣ IUUQTHJUIVCDPNBINFUCLVCFDUY ‣ ૢ࡞ରͷΫϥελΛΓସ͑͘͢͢Δπʔϧ ‣ LVCFQSPNQU ‣
IUUQTHJUIVCDPNDCBUBLVCFQSPNQU ‣ ΦʔτίϯϓϦʔτͰ͖ΔLVCFDUMతͳ