Initial implementation using kustomize and envsubst

[thobens]

This PR provides the initial implementation of the capi-provider-cloudscale component. It utilizes kustomize to build the manifests from the upstream provider repository and then substitutes variables on the generated output. It does so using https://github.com/a8m/envsubst, which will be included in the commodore image used for CI/CD. This simulates the behavior of clusterctl so we can use project syn to set up CAPI.

See also:

• capi-core PR for initial implementation: Basic implementation of the capi-core component component-capi-core#1
• PR to add envsubst dependency to commodore image: Add envsubst dependency to commodore image commodore#1419

Checklist

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[github-actions]

🚀 This PR has been released as v0.1.0

Triggering workflows Release

🛠️ Auto tagging enabled with label bump:minor

[github-actions]

🚀 Merging this PR will release v0.0.1

Merging will trigger workflows Release

🛠️ Auto tagging enabled with label bump:patch

[simu]

Also why is this component in https://github.com/vshn? Afaict, there's nothing in here that would prevent it from being in https://github.com/projectsyn

[thobens]

Also why is this component in https://github.com/vshn? Afaict, there's nothing in here that would prevent it from being in https://github.com/projectsyn

Move is prepared, will do as soon as this review is complete

[simu]

We should probably configure the ArgoCD app to use server-side apply, since the component deploys CRDs (probably also applies to capi-core). This can be done by adding the following in component/app.jsonnet:

local app = argocd.App('capi-provider-cloudscale', params.namespace) {
  spec+: {
    syncOptions+: [
      'ServerSideApply=true',
    ],
  }
};