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84 lines
2.6 KiB
Markdown
84 lines
2.6 KiB
Markdown
3 years ago
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# Flux Diagrams
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## Cluster sync from Git
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```mermaid
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sequenceDiagram
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actor me
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participant git as Git<br><br>repository
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participant sc as Flux<br><br>source-controller
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participant kc as Flux<br><br>kustomize-controller
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participant kube as Kubernetes<br><br>api-server
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participant nc as Flux<br><br>notification-controller
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me->>git: 1. git push
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sc->>git: 2. git pull
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sc->>sc: 3. build artifact for revision
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sc->>kube: 4. update status for revision
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sc-->>nc: 5. emit events
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kube->>kc: 6. notify about new revision
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kc->>sc: 7. fetch artifact for revision
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kc->>kc: 8. build manifests to objects
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kc-->>kc: 9. decrypt secrets
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kc->>kube: 10. validate objects
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kc->>kube: 11. apply objects
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kc-->>kube: 12. delete objects
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kc-->>kube: 13. wait for readiness
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kc->>kube: 14. update status for revision
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kc-->>nc: 15. emit events
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nc-->>me: 16. send alerts for revision
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```
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## Helm release upgrade from Git
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```mermaid
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sequenceDiagram
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actor me
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participant git as Git<br><br>repository
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participant sc as Flux<br><br>source-controller
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participant hc as Flux<br><br>helm-controller
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participant kube as Kubernetes<br><br>api-server
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participant nc as Flux<br><br>notification-controller
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me->>git: 1. git push
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sc->>git: 2. git pull
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sc->>sc: 3. build chart for revision
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sc->>kube: 4. update chart status
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sc-->>nc: 5. emit events
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kube->>hc: 6. notify about new revision
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hc->>sc: 7. fetch chart
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hc->>kube: 8. get values
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hc->>hc: 9. render and customize manifests
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hc-->>kube: 10. apply CRDs
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hc->>kube: 11. upgrade release
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hc-->>kube: 12. run tests
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hc-->>kube: 13. wait for readiness
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hc->>kube: 14. update status
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hc-->>nc: 15. emit events
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nc-->>me: 16. send alerts
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```
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## Image update to Git
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```mermaid
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sequenceDiagram
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actor me
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participant oci as Image<br><br>repository
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participant irc as Flux<br><br>image-reflector-controller
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participant iac as Flux<br><br>image-automation-controller
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participant kube as Kubernetes<br><br>api-server
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participant nc as Flux<br><br>notification-controller
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participant git as Git<br><br>repository
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me->>oci: 1. docker push
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irc->>oci: 2. list tags
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irc->>irc: 3. match tags to policies
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irc->>kube: 4. update status
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irc-->>nc: 5. emit events
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kube->>iac: 6. notify about new tags
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iac->>git: 7. git clone
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iac->>iac: 8. patch manifests with new tags
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iac->>git: 9. git push
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iac->>kube: 10. update status
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iac-->>nc: 11. emit events
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nc-->>me: 12. send alerts
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```
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