mirror of
https://github.com/arangodb/kube-arangodb.git
synced 2024-12-14 11:57:37 +00:00
111 lines
2.5 KiB
Go
111 lines
2.5 KiB
Go
//
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// DISCLAIMER
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//
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// Copyright 2016-2023 ArangoDB GmbH, Cologne, Germany
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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// Copyright holder is ArangoDB GmbH, Cologne, Germany
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//
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package rotation
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import (
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"reflect"
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core "k8s.io/api/core/v1"
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api "github.com/arangodb/kube-arangodb/pkg/apis/deployment/v1"
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shared "github.com/arangodb/kube-arangodb/pkg/apis/shared"
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"github.com/arangodb/kube-arangodb/pkg/util/compare"
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)
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type volumeDiff struct {
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a, b *core.Volume
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}
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func comparePodVolumes(ds api.DeploymentSpec, g api.ServerGroup, spec, status *core.PodTemplateSpec) compare.Func {
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return func(builder api.ActionBuilder) (mode compare.Mode, plan api.Plan, err error) {
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specV := mapVolumes(spec.Spec)
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statusV := mapVolumes(status.Spec)
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diff := getVolumesDiffFromPods(specV, statusV)
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if len(diff) == 0 {
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return compare.SkippedRotation, nil, nil
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}
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for k, v := range diff {
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switch k {
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case shared.ArangoDTimezoneVolumeName:
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// We are fine, should be just replaced
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if v.a == nil {
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// we remove volume
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return compare.GracefulRotation, nil, nil
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}
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if ds.Mode.Get().ServingGroup() == g {
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// Always enforce on serving group
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return compare.GracefulRotation, nil, nil
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}
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default:
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return compare.GracefulRotation, nil, nil
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}
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}
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status.Spec.Volumes = spec.Spec.Volumes
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return compare.SilentRotation, nil, nil
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}
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}
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func getVolumesDiffFromPods(a, b map[string]*core.Volume) map[string]volumeDiff {
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d := map[string]volumeDiff{}
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for k := range a {
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if z, ok := b[k]; ok {
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if !reflect.DeepEqual(a[k], z) {
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d[k] = volumeDiff{
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a: a[k],
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b: z,
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}
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}
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} else {
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d[k] = volumeDiff{
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a: a[k],
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b: nil,
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}
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}
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}
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for k := range b {
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if _, ok := a[k]; !ok {
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d[k] = volumeDiff{
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a: nil,
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b: b[k],
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}
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}
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}
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return d
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}
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func mapVolumes(a core.PodSpec) map[string]*core.Volume {
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n := make(map[string]*core.Volume, len(a.Volumes))
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for id := range a.Volumes {
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v := &a.Volumes[id]
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n[v.Name] = v
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}
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return n
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}
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