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GitOpsで実現するPull Request毎のプレビュー環境/Preview environment for each Pull Request by GitOps
Takuma Kume
September 28, 2021
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32 slides
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ࠓճհ͢Δͷ ΞϓϦέʔγϣϯ ϦϙδτϦ LVCFSOFUFT Ϋϥελ Branch-A Branch-B Branch-A Branch-B 13࡞
13࡞ branch-a.example.com branch-b.example.com (JU0QTͰ࣮ݱ͢Δ1VMM3FRVFTUຖͷϓϨϏϡʔڥ -
ΞϓϦέʔγϣϯ ϦϙδτϦ LVCFSOFUFT Ϋϥελ Branch-A Branch-B Branch-A Branch-B 13࡞ 13࡞
branch-a.example.com branch-b.example.com ϓϨϏϡʔڥͷղઆ -
ϓϨϏϡʔڥͷղઆɿલఏ "QQ3FQP 4ZTUFN.BOJGFTUT3FQP $POUBJOFS3FHJTUSZ ,VCFSOFUFT$MVTUFS ιʔείʔυ LVCFSOFUFTNBOJGFTUT LVCFSOFUFTNBOJGFTUT "SHP$% ֤"QQ3FQPͷ"SHP$%$POpH
*OHSFTT$POUSPMMFSʜ ArgoCD ΞϓϦͷίϯςφΠϝʔδ ArgoCD Image Updater "SHP$%ͰNBOJGFTUTͷ$%Λ͍ͯ͠Δ "SHP$%*NBHF6QEBUFSͰΠϝʔδͷ $%Λ͍ͯ͠Δ ϓϨϏϡʔڥͷղઆͷલʹɺϦϙδτϦͷߏͱ$%ʹ͍ͭͯ -
ϓϨϏϡʔڥͷղઆɿશମ૾ "QQ3FQP 4ZTUFN.BOJGFTUT3FQP $POUBJOFS3FHJTUSZ ,VCFSOFUFT$MVTUFS Github Actions branch-a Github Actions
13࡞ App Image ίϯςφΠϝʔδͷ#VJME1VTI SFQPTJUPSZ@EJTQBUDI 13τϦΨʔͰΠϝʔδͷϏϧυͱ"SHP$%ͷઃఆΛੜ͢Δ CSBODIB༻ͷ"SHP$%ͷઃఆΛੜ HJUDPNNJUQVTI -
ϓϨϏϡʔڥͷղઆɿશମ૾ "QQ3FQP 4ZTUFN.BOJGFTUT3FQP $POUBJOFS3FHJTUSZ ,VCFSOFUFT$MVTUFS Github Actions branch-a Github Actions
13࡞ App Image ίϯςφΠϝʔδͷ#VJME1VTI SFQPTJUPSZ@EJTQBUDI CSBODIB༻ͷ"SHP$%ͷઃఆΛੜ "SHP$%͕ݕ͠ϒϥϯνͷڥΛσϓϩΠ͢Δ ArgoCD CSBODIBͷڥΛੜ BQQCSBODIB CSBODIB༻ͷ"SHP$%ͷઃఆΛ"QQMZ CSBODIBͷNBOJGFTUTͷಉظΛ։࢝ %FQMPZNFOU 4FSWJDFʜ มߋΛݕ HJUDPNNJUQVTI -
ϓϨϏϡʔڥͷղઆɿશମ૾ "QQ3FQP 4ZTUFN.BOJGFTUT3FQP $POUBJOFS3FHJTUSZ ,VCFSOFUFT$MVTUFS Github Actions branch-a Github Actions
13࡞ App Image ίϯςφΠϝʔδͷ#VJME1VTI SFQPTJUPSZ@EJTQBUDI CSBODIB༻ͷ"SHP$%ͷઃఆΛੜ "SHP$%*NBHF6QEBUFSͰ࠷৽ͷΠϝʔδΛద༻͢Δ ArgoCD มߋΛݕ CSBODIBͷڥΛੜ BQQCSBODIB CSBODIB༻ͷ"SHP$%ͷઃఆΛ"QQMZ CSBODIBͷNBOJGFTUTͷಉظΛ։࢝ %FQMPZNFOU 4FSWJDFʜ ArgoCD Image Updater ࠷৽ͷΠϝʔδΛద༻͢Δ มߋΛݕ ίϯςφΠϝʔδͷ#VJME1VTI ϒϥϯν1VTI͢Δʹ࣮ߦ HJUDPNNJUQVTI -
ϓϨϏϡʔڥͷղઆɿશମ૾ "QQ3FQP 4ZTUFN.BOJGFTUT3FQP $POUBJOFS3FHJTUSZ ,VCFSOFUFT$MVTUFS Github Actions branch-a Github Actions
13࡞ App Image ίϯςφΠϝʔδͷ#VJME1VTI SFQPTJUPSZ@EJTQBUDI CSBODIB༻ͷ"SHP$%ͷઃఆΛੜ ArgoCD มߋΛݕ CSBODIBͷڥΛੜ BQQCSBODIB CSBODIB༻ͷ"SHP$%ͷઃఆΛ"QQMZ CSBODIBͷNBOJGFTUTͷಉظΛ։࢝ %FQMPZNFOU 4FSWJDFʜ ArgoCD Image Updater ࠷৽ͷΠϝʔδΛద༻͢Δ มߋΛݕ ίϯςφΠϝʔδͷ#VJME1VTI HJUDPNNJUQVTI -
"SHP$%ͷઃఆͷੜ "QQ3FQP 4ZTUFN.BOJGFTUT3FQP $POUBJOFS3FHJTUSZ ,VCFSOFUFT$MVTUFS Github Actions branch-a Github Actions
13࡞ App Image ίϯςφΠϝʔδͷ#VJME1VTI SFQPTJUPSZ@EJTQBUDI CSBODIB༻ͷ"SHP$%ͷઃఆΛੜ ArgoCD มߋΛݕ CSBODIBͷڥΛੜ BQQCSBODIB CSBODIB༻ͷ"SHP$%ͷઃఆΛ"QQMZ CSBODIBͷNBOJGFTUTͷಉظΛ։࢝ %FQMPZNFOU 4FSWJDFʜ ArgoCD Image Updater ࠷৽ͷΠϝʔδΛద༻͢Δ มߋΛݕ ίϯςφΠϝʔδͷ#VJME1VTI HJUDPNNJUQVTI -
"SHP$%ͷઃఆͷੜ wBSHPDEBENJOBQQHFOFSBUFTQFDίϚϯυͰઃఆΛੜͯ͠Ϧ ϙδτϦʹ1VTI͍ͯ͠Δ $ argocd admin app generate-spec sample-app-pr-1 \
--dest-server https://kubernetes.default.svc \ --dest-namespace sample-app-pr-1 \ --path manifests/preview \ --repo https://github.com/takumakume/sample-app \ --revision branch-1 \ --sync-policy auto \ --sync-option Prune=true \ --sync-option CreateNamespace=true apiVersion: argoproj.io/v1alpha1 kind: Application metadata: name: sample-app-pr-1 spec: destination: namespace: sample-app-pr-1 server: https://kubernetes.default.svc source: path: manifests/preview repoURL: https://github.com/takumakume/sample-app targetRevision: branch-1 syncPolicy: … wੜʹඞཁͳύϥϝʔλΛ(JUIVC"DUJPOͰ͍ͯ͠Δ sample-app-pr-1.yaml -
"SHP$%ͷઃఆͷੜ apiVersion: argoproj.io/v1alpha1 kind: Application metadata: name: sample-app-pr-1 spec: source:
path: manifests/preview repoURL: https://github.com/takumakume/sample-app targetRevision: branch-1 destination: namespace: sample-app-pr-1 server: https://kubernetes.default.svc syncPolicy: - CreateNamespace=true … ϓϨϏϡʔڥͷNBOJGFTUTͷσ ΟϨΫτϦΛ 13ຖͷ/BNFTQBDFʹల։ /BNFTQBDFࣗಈੜ w୯ҰͷNBOJGFTUTΛ֤ͬͯ13ͷڥΛએݴతʹੜͰ͖Δ sample-app-pr-1.yaml -
"QQ*NBHFͷߋ৽ "QQ3FQP 4ZTUFN.BOJGFTUT3FQP $POUBJOFS3FHJTUSZ ,VCFSOFUFT$MVTUFS Github Actions branch-a Github Actions
13࡞ App Image ίϯςφΠϝʔδͷ#VJME1VTI SFQPTJUPSZ@EJTQBUDI CSBODIB༻ͷ"SHP$%ͷઃఆΛੜ ArgoCD มߋΛݕ CSBODIBͷڥΛੜ BQQCSBODIB CSBODIB༻ͷ"SHP$%ͷઃఆΛ"QQMZ CSBODIBͷNBOJGFTUTͷಉظΛ։࢝ %FQMPZNFOU 4FSWJDFʜ ArgoCD Image Updater ࠷৽ͷΠϝʔδΛద༻͢Δ มߋΛݕ ίϯςφΠϝʔδͷ#VJME1VTI HJUDPNNJUQVTI -
"QQ*NBHFͷߋ৽ wϒϥϯνʹHJUQVTI͢Δʹɺ13൪߸ͱίϛοτϋογϡͰߏ ͞ΕΔλάΛ༩ͯ͠ΠϝʔδΛQVTI͍ͯ͠Δ wTBNQMFBQQQSFDFE w"SHP$%ͷઃఆΛੜ͢Δஈ֊Ͱ*NBHF6QEBUFSͷઃఆΛ༩ apiVersion: argoproj.io/v1alpha1 kind: Application metadata:
name: sample-app-pr-1 annotations: argocd-image-updater.argoproj.io/image-list: sample-app=takumakume/sample-app:^pr-1 argocd-image-updater.argoproj.io/sample-app.update-strategy: latest argocd-image-updater.argoproj.io/sample-app.ignore-tags: latest argocd-image-updater.argoproj.io/sample-app.allow-tags: regexp:^pr-1-[0-9a-f]{5,40}$ ... ࠷৽ͷlQSίϛοτϋογϡzͳΠϝʔδΛద༻͢Δ -
ϓϨϏϡʔڥͷղઆɿڥͷআ "QQ3FQP 4ZTUFN.BOJGFTUT3FQP ,VCFSOFUFT$MVTUFS Github Actions Pull Request Github Actions
$MPTFPS.FSHF SFQPTJUPSZ@EJTQBUDI CSBODIB༻ͷ"SHP$%ͷઃఆΛআ ArgoCD আΛݕ CSBODIBͷڥΛআ BQQCSBODIB CSBODIB༻ͷ"SHP$%ͷઃఆΛআ %FQMPZNFOU 4FSWJDFʜ HJUDPNNJUQVTI apiVersion: argoproj.io/v1alpha1 kind: Application metadata: name: sample-app-pr-1 finalizers: - resources-finalizer.argocd.argoproj.io … "QQMJDBUJPOϦιʔεআ࣌ʹͦͷڥΛআ͢Δ -
ϓϨϏϡʔڥͷղઆɿڥͷΞΫηε ΞϓϦέʔγϣϯ ϦϙδτϦ LVCFSOFUFT Ϋϥελ Branch-A Branch-B Branch-A Branch-B 13࡞
13࡞ branch-a.example.com branch-b.example.com *OHSFTTΛͬͯެ։͍ͯ͠Δ -
ϓϨϏϡʔڥͷղઆɿڥͷΞΫηε apiVersion: networking.k8s.io/v1 kind: Ingress metadata: name: app-ingress namespace: app
spec: rules: - host: staging-app.example.com http: paths: - backend: service: name: app-svc port: number: 8080 path: / pathType: Prefix tls: - hosts: - staging-app.example.com secretName: app-tls staging-app.example.com staging-app.example.com ίί ίί w*OHSFTTΛ͏߹ͷ՝ w୯ҰͷNBOJGFTUTΛෳͷϓϨϏϡʔ ڥʹར༻͢ΔͨΊɺ*OHSFTTIPTUͷ ॻ͖͕͑ඞཁ wNBOJGFTUTੜ࣌ʹεΫϦϓτͰॻ ͖͑ΔࣄͰ͖Δ͕ɺཧ͕ࡶͱ ͳΔ -
apiVersion: service-expose.../v1alpha1 kind: ServiceExpose metadata: name: example namespace: ns1 spec:
backend: service: name: example-svc port: number: 8080 domain: example.com path: / pathType: Prefix tlsEnable: true tlsSecretName: example-tls annotations: cert-manager.io/cluster-issuer: letsencrypt apiVersion: networking.k8s.io/v1 kind: Ingress metadata: name: example namespace: ns1 annotations: cert-manager.io/cluster-issuer: letsencrypt spec: rules: - host: example-svc.ns1.example.com http: paths: - backend: service: name: example-svc port: number: 8080 path: / pathType: Prefix tls: - hosts: - example-svc.ns1.example.com secretName: example-tls backend: service: name: example-svc port: number: 8080 example-svc ns1 example.com example-svc ns1 example.com example-svc ns1 example.com ެ։͢Δ4FSWJDF αʔϏεσΟεΧόϦతͳ ϗετ໊ΛࣗಈͰ༩ αʔϏε໊ namespace υϝΠϯ UBLVNBLVNFTFSWJDFFYQPTFPQFSBUPS