constellation/internal/deploy/helm/helm.go
Otto Bittner efcd0337b4
Microservice upgrades (#729)
Run with: constellation upgrade execute --helm.
This will only upgrade the helm charts. No config is needed.

Upgrades are implemented via helm's upgrade action, i.e. they
automatically roll back if something goes wrong. Releases could 
still be managed via helm, even after an upgrade with constellation
has been done.

Currently not user facing as CRD/CR backups are still in progress.
These backups should be automatically created and saved to the 
user's disk as updates may delete CRs. This happens implicitly 
through CRD upgrades, which are part of microservice upgrades.
2022-12-19 16:52:15 +01:00

46 lines
1.1 KiB
Go

/*
Copyright (c) Edgeless Systems GmbH
SPDX-License-Identifier: AGPL-3.0-only
*/
package helm
// Release bundles all information necessary to create a helm release.
type Release struct {
Chart []byte
Values map[string]any
ReleaseName string
Wait bool
}
// Releases bundles all helm releases to be deployed to Constellation.
type Releases struct {
Cilium Release
CertManager Release
Operators Release
ConstellationServices Release
}
// MergeMaps returns a new map that is the merger of it's inputs.
// Key colissions are resolved by taking the value of the second argument (map b).
// Taken from: https://github.com/helm/helm/blob/dbc6d8e20fe1d58d50e6ed30f09a04a77e4c68db/pkg/cli/values/options.go#L91-L108.
func MergeMaps(a, b map[string]any) map[string]any {
out := make(map[string]any, len(a))
for k, v := range a {
out[k] = v
}
for k, v := range b {
if v, ok := v.(map[string]any); ok {
if bv, ok := out[k]; ok {
if bv, ok := bv.(map[string]any); ok {
out[k] = MergeMaps(bv, v)
continue
}
}
}
out[k] = v
}
return out
}