Skaffoldを使ってKubernetes してみた/skaffold_k8s

by KOYAMA Tetsuji

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PHPΧϯϑΝϨϯε෱Ԭ2018 2018-06-16 4LB⒎PMEΛ࢖ͬͯ ,VCFSOFUFTͯ͠Έͨ খࢁ఩ࢤ !LPZIPHF

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ࣗݾ঺հ খࢁ఩ࢤ ͜΍·ͯͭ͡ ߹ಉձࣾ΄ٕ͛ݚ Ϣʔβձ͍͔ͭ͘ ೔ຊ6/*9Ϣʔβձ ೔ຊ1PTUHSF42-Ϣʔβձ ೔ຊ1)1Ϣʔβձ SBLVNPגࣜձࣾΤϯδχΞ !LPZIPHF LPZIPHF

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w (4VJUF (NBJM (PPHMFΧϨϯμʔͳͲ ʹػೳ௥Ճ͠ ͯൢച w ಋೖ ࣾҎ্ w IUUQTSBLVNPDPN w ࡢ೥(PPHMF$MPVE1MBUGPSN ($1 ͷύʔτφʔʹ

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ࠓճͷ಺༰ w ,VCFSOFUFTͷྺ࢙ w ,VCFSOFUFTͷಛ௃ w 4LB⒎PMEͷಛ௃ w 4LB⒎PMEͷ࢖͍ํ

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,VCFSOFUFT w IUUQTLVCFSOFUFTJP w LTͱུ͞ΕΔ w ಡΈ͸ʮ͘ʔ͹Ͷͯ͌͢ʯ w %PDLFS޲͚ΦʔέετϨʔγϣϯπʔϧ

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ࠓճͷ಺༰ w ,VCFSOFUFTͷྺ࢙ w ,VCFSOFUFTͷಛ௃ w 4LB⒎PMEͷಛ௃ w 4LB⒎PMEͷ࢖͍ํ

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LTIJTUPSZ w ೥(PPHMFͷࣾ಺πʔϧͱͯ͠։ൃ։࢝ w (PPHMFͷ#PSH͔Βڧ͍ӨڹΛड͚ͨ1SPKFDU4FWFO w 4FWFO͸4UBS5SFL7PZBHFSͷ4FWFOPG/JOF͔Β w ϩΰͷຊεϙʔΫͷ଩ͷ༝དྷ w ʹWϦϦʔε w ͦͷޙ$/$'ʹҠ؅ #Z4PVSDF 81/'$$ 'BJSVTF IUUQTFOXJLJQFEJBPSHXJOEFYQIQ DVSJE

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LT%PDLFS w %PDLFS$PO&6 w LTͷ%PDLFSͱ౷߹Λൃද w ࣄ্࣮ͷඪ४ΦʔέετϨʔγϣϯπʔϧʹ w ͦͷޙΫϥ΢υք۾͕૽͕͘͠ͳΔ

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w (PPHMF$POUBJOFS&OHJOF w ($1ͷ%PDLFSίϯςφӡ༻ϚωʔδυαʔϏε w ུশ͸(,& ($&͸$PNQVUF&OHJOFʹ࢖ΘΕ͍ͯ ͨ w (PPHMF,VCFSOFUFT&OHJOF (,& ʹվ໊ LTPO($1

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w "[VSF$POUBJOFS4FSWJDF "$4 w ࠷ॳ͸"QBDIF.FTPTϕʔε w ෳ਺ͷΦʔέετϨʔγϣϯπʔϧΛαϙʔτ w "[VSF$POUBJOFS4FSWJDF ",4 w ,VCFSOFUFTϕʔε w "[VSF,VCFSOFUFT4FSWJDF ",4 ʹվ໊ LTPO"[VSF

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w &MBTUJD$POUBJOFS4FSWJDFGPS,VSCFSOFUFT &,4 w &$4ͱ͍͏ಠࣗϚωʔδυαʔϏεΛ͢Ͱʹ΋͍ͬͯ ͨ w LTඪ४ͷྲྀΕΛड͚ͯαʔϏε௥Ճ LTPO"84

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ࠓճͷ಺༰ w ,VCFSOFUFTͷྺ࢙ w ,VCFSOFUFTͷಛ௃ w 4LB⒎PMEͷಛ௃ w 4LB⒎PMEͷ࢖͍ํ

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w ʮγεςϜΛߏ੒͢ΔϓϥοτϑΥʔϜ΍ϛυϧ΢ΣΞɺ αʔϏεɺΞϓϦέʔγϣϯɺ؅ཧπʔϧͳͲͷઃఆ΍؅ ཧΛࣗ཯తʹ࿈ܞͤ͞Δ͜ͱɻʯ  ;%/FU+BQBOΩʔϫʔυղઆΑΓ w ΦʔέετϨʔγϣϯͱ͸ͳʹ͔

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w ༷ʑͳ໾ׂͷίϯςφΛ૊Έ߹ΘͤͯαʔϏεΛ࡞Δͱ ͖ͷɺӡ༻ͷෳࡶੑΛղܾ͢Δ w (PPHMF͕#PSHΛӡ༻͖ͯͨ͠ͱ͖ͷ஌ݟ͕٧·ͬͯ ͍Δ LT͸ԿΛղܾ͢Δͷ͔

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w Πϛϡʔλϒϧ w એݴతઃఆ w ΦϯϥΠϯͰࣗݾճ෮͢Δ LTͷઃܭίϯηϓτ

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w *NNVUBCJMJUZ w Ұ౓࡞੒ͨ͠Βมߋ͞Εͳ͍ w ඞཁʹԠͯ͡ಉ͡಺༰ͷίϯςφΛ͍ͭ͘΋ىಈͰ͖Δ Πϛϡʔλϒϧ

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w ʮԿΛ͢Δ͔ʯͰ͸ͳ͘ʮͲ͏͋Δ΂͖͔ʯΛهड़͢Δ w ࠷ऴతͳ๬·͍͠ঢ়ଶΛॻ͘ એݴతઃఆ

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w ๬·͍͠ঢ়ଶ͸஌͍ͬͯΔ w ܧଓతʹ؂ࢹ͠ɺ๬·͍͠ঢ়ଶʹͳ͍ͬͯͳ͔ͬͨΒͦΕ ʹҰக͢ΔΑ͏ʹಈ͖ଓ͚Δ ࣗݾճ෮͢Δ

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apiVersion: v1 kind: Pod metadata: name: nginx spec: containers: - name: nginx image: nginx:1.7.9 ports: - containerPort: 80 nginx-pod.yml

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w Ϋϥελ w 1PE w 4FSWJDF w 3FQMJDB4FU w %BFNPO4FU w +PC w %FQMPZNFOU w $POpH.BQ LTߏ੒ཁૉ

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w Ϋϥελ w 1PE w 4FSWJDF w 3FQMJDB4FU w %BFNPO4FU w +PC w %FQMPZNFOU w $POpH.BQ LTߏ੒ཁૉ

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w LT؀ڥΛߏ੒͢ΔϚγϯ܈ w %PDLFS͕ಈ͚͹෺ཧ࿦ཧͲͪΒͰ΋ྑ͍ w Ϋϥ΢υαʔϏεͰ͸؅ཧը໘ͰϙνΔ͚ͩ Ϋϥελ

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w ϫʔΫϩʔυ ίϯςφ ͕ಈ࡞͢Δ࿦ཧϊʔυ w ෳ਺ͷϫʔΫϩʔυ͕ಈ࡞͢Δ৔߹΋͋Δ w ಉҰ1PEͷ৔߹͸ɺϑΝΠϧγεςϜͰίϯςφಉ࢜ ͕΍ΓऔΓ͢Δ͜ͱ΋Մೳ 1PE

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w ໊લղܾ w ಺෦Ͱ%/4͕ಈ͍͍ͯΔ w ֎෦΁ͷΤϯυϙΠϯτ࡞੒ 4FSWJDF

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w αʔϏεҰࣜΛ഑ஔ͢Δ࢓૊Έ w ࢮ׆؂ࢹ w ߏ੒มߋɾΦʔτεέʔϧ w %PDLFSΠϝʔδͷߋ৽ w Ξοϓσʔτઓུ %FQMPZNFOU

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w LT؅ཧίϚϯυ w جຊ͸͜ͷίϚϯυ͔Β͢΂ͯΛߦ͏ LVCFDUM

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w IPHFZNMʹαʔϏεͷ͢΂ͯΛॻ͘ํࣜ w ͍ͨ΁Μγϯϓϧ w :".-Ͱ͔͗͢໰୊ σϓϩΠ $ kubectl apply -f hoge.yml

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ࠓճͷ಺༰ w ,VCFSOFUFTͷྺ࢙ w ,VCFSOFUFTͷಛ௃ w 4LB⒎PMEͷಛ௃ w 4LB⒎PMEͷ࢖͍ํ

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w IUUQTHJUIVCDPN(PPHMF$POUBJOFS5PPMT TLB⒎PME w ϫʔΫϑϩʔͷࣗಈԽπʔϧ w ·ͩΞϧϑΝ൛Ͱ࣮ݧతͳҐஔ͚ͮ w ࠷৽൛͸ʹϦϦʔε͞Εͨ 4LB⒎PME

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w .BUU3JDLBSE͞Μ w IUUQTHJUIVCDPNSE w ($1ΤϯδχΞ w NJOJLVCFʹ΋ؔΘ͍ͬͯΔ ࡞ͬͨͷ͸͜ͷਓ

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w ίϯςφϕʔε։ൃͷ$* w %PDLFSΠϝʔδͷ࡞੒ɺϨδετϦ΁ͷొ࿥ɺσϓϩΠ ͷͦΕͧΕΛࣗಈԽ ԿΛղܾ͢Δ΋ͷ

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w ։ൃ࣌ w ϏϧυϩʔΧϧͷEPDLFSCVJME w ొ࿥ͳ͠ w σϓϩΠNJOJLVCFʹLVCFDUM w ຊ൪࣌ ($1ͷ৔߹ w Ϗϧυ(PPHMF$POUBJOFS#VJMEFSʹ౤͛Δ w ొ࿥(PPHMF$POUBJOFS3FHJTUSZʹొ࿥͢Δ w σϓϩΠ(,&ʹLVCFDUM ྆ऀͷҧ͍

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w ΠϝʔδSFQPͷλάΛࣗಈͰଧͬͯ͘ΕΔɻ w ։ൃ࣌͸ϑΝΠϧΛ؂ࢹͯ͠ɺมߋ͕͋ͬͨΒࣗಈͰσϓ ϩΠ·Ͱ΍ͬͯ͘ΕΔ ·ͩ͋Δศརػೳ

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w #B[FM w IUUQTCB[FMCVJME w )FMN w IUUQTIFMNTI w LBOJLP w IUUQTHJUIVCDPN(PPHMF$POUBJOFS5PPMTLBOJLP w LVTUPNJ[F w IUUQTHJUIVCDPNLVCFSOFUFTTJHTLVTUPNJ[F w ෳ਺ΠϝʔδͷରԠ NJDSPTFSWJDF ֤छπʔϧରԠ

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ࠓճͷ಺༰ w ,VCFSOFUFTͷྺ࢙ w ,VCFSOFUFTͷಛ௃ w 4LB⒎PMEͷಛ௃ w 4LB⒎PMEͷ࢖͍ํ

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w TLB⒎PMEίϚϯυͷΠϯετʔϧ w ඞཁͳΒ LVCFDUM NJOJLVCFͷΠϯετʔϧ w ຊ൪σϓϩΠ؀ڥͷ༻ҙ ྫ(,& Ͱ͸࢖ͬͯΈΑ͏

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w TLB⒎PME͸HP੡ w ֤ϓϥοτϑΥʔϜ༻όΠφϦΛ഑͍ͬͯΔͷͰࣗ෼Ͱ Ϗϧυ͢Δඞཁ͸ͳ͍ w .BDͳΒ TLB⒎PMEίϚϯυ curl -Lo skaffold https://storage.googleapis.com/skaffold/ releases/latest/skaffold-darwin-amd64 && chmod +x skaffold && sudo mv skaffold /usr/local/bin

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w NBJOHPΛίϯύΠϧ࣮ߦ͢Δ͚ͩͷαϯϓϧ FYBNQMFTHFUUJOHTUBSUFE

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NBJOHP package main import ( "fmt" "time" ) func main() { for { fmt.Println("Hello world!") time.Sleep(time.Second * 1) } }

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%PDLFSpMF FROM golang:1.10.1-alpine3.7 as builder COPY main.go . RUN go build -o /app main.go FROM alpine:3.7 CMD ["./app"] COPY --from=builder /app .

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TLB⒎PMEZNM apiVersion: skaffold/v1alpha2 kind: Config build: artifacts: - imageName: gcr.io/myproj-koyhoge/skaffold-gcb deploy: kubectl: manifests: - k8s-* profiles: - name: gcb build: googleCloudBuild: projectId: myproj-koyhoge

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LTQPEZNM apiVersion: v1 kind: Pod metadata: name: getting-started spec: containers: - name: getting-started image: gcr.io/myproj-koyhoge/skaffold-gcb

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TLB⒎PMEEFW Ϗϧυ ొ࿥ σϓϩΠ

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w ϑΝΠϧอଘͱಉ࣌ʹҰ࿈ͷ࡞ۀ͕࠶ͼߦΘΕΔ ͦͷ··ϑΝΠϧมߋ fmt.Println("Hello world!") Λ fmt.Println("Hello phpconfuk!") ΁

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w Ҏ্ɺऴྃ ຊ൪σϓϩΠ $ skaffold run

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w ඪ४తͳ$*$%ͱόοςΟϯά͠ͳ͍ w ͱ΋͋Ε͢΂ͯΛίϯςφͰ·͔ͳ͏ࢼΈ͸໘ന͍ w ͜͜ͰഓΘΕ͍ͯΔ஌ݟ͸ɺผͷ$*$%ͷ࢓૊ΈͰ΋׆ ͔ͤΔͩΖ͏ ࢼͯ͠ͷײ૝

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w LT͸ࠓͱͯ΋Ξπ͍ w TLB⒎PMEΛ͸͡Ίɺ͞·͟·ͳपลπʔϧ͕։ൃ͞Εɺ ৽͍͠ࢼΈ͕ߦΘΕ͍ͯΔ w αʔϏεͷ044ج൫ͱͯ͠ͷඪ४ʹͳΓͭͭ͋Δ ·ͱΊ