https://github.com/rgolangh/migration-cluster-day2

https://github.com/rgolangh/migration-cluster-day2

Last synced: 29 days ago
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• Host: GitHub
• URL: https://github.com/rgolangh/migration-cluster-day2
• Owner: rgolangh
• License: apache-2.0
• Created: 2024-09-19T15:45:27.000Z (4 months ago)
• Default Branch: main
• Last Pushed: 2024-11-13T12:46:32.000Z (2 months ago)
• Last Synced: 2024-11-13T13:46:49.750Z (2 months ago)
• Language: HTML
• Size: 96.7 KB
• Stars: 0
• Watchers: 1
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# migration-cluster-day-2

The Day-2 configuration of a cluster for migration is setup using an ArgoCD application.

See the installation instruction in charts/migration-cluster-day-2/README.md

This repo maintains 2 components:

- the ArgoCD helm application in charts/migration-cluster-day-2

- the mtv-init application

> [!Note]

> 2 things that must be set for the argo application to deploy properly:

> 1. an annotation on resources which need their CRD by prior waves. For example

>    the LVMCluster have this:

>     ```

>     annotations:

>       argocd.argoproj.io/sync-wave: "2"

>       argocd.argoproj.io/sync-options: SkipDryRunOnMissingResource=true

>     ```

>

>     This makes sure the wave is after the operator is deployed so the CRD is there

>     and that the CRD is okay to be missing in the dry run check

>    

> 2. Every target namespace we create needs this label so ArgoCD will have permissions to create resources there:

>  ```

>  labels:

>    argocd.argoproj.io/managed-by: openshift-gitops

>  ```

# Architecture

> [!Note]

> Needs an update

```mermaid

architecture-beta

    group srcDC[VSPhere]

    group agent(cloud)[Agent VM] in srcDC

    service agentd(server)[Agent] in agent

    

    group amservice(cloud)[Assisted Migration Service]

    service amserviced(server)[AMService] in amservice

    service db1(database)[Database] in amservice

    group targetcluster[Target Cluster]

    group mta(server)[MTA] in targetcluster

    service mtaAPI[migration CRD] in mta

```

```mermaid

architecture-beta

        MA[mtv-init Service] 

        MA --> MB[HTTP API: /, /upload, /vmware, /vmware/done]

        

        MB --> MC[vddk-task Job]

        MC --> MD[Download vddk.tar.gz]

        MC --> ME[Trigger vddk build config
to build image]

        ME --> MF[vddk build config]

        MC --> MG[Update MTV Operator Resource
with vddk Image URL]

        MG --> MH[mtv-operator Resource]

```