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kube-arangodb/pkg/deployment/reconcile/action_runtime_sync_tolerations.go
2022-12-19 19:35:25 +01:00

100 lines
3 KiB
Go

//
// DISCLAIMER
//
// Copyright 2016-2022 ArangoDB GmbH, Cologne, Germany
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// Copyright holder is ArangoDB GmbH, Cologne, Germany
//
package reconcile
import (
"context"
"reflect"
"github.com/pkg/errors"
meta "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/types"
api "github.com/arangodb/kube-arangodb/pkg/apis/deployment/v1"
"github.com/arangodb/kube-arangodb/pkg/deployment/patch"
"github.com/arangodb/kube-arangodb/pkg/util/globals"
"github.com/arangodb/kube-arangodb/pkg/util/k8sutil/tolerations"
)
func newRuntimeContainerSyncTolerationsAction(action api.Action, actionCtx ActionContext) Action {
a := &actionRuntimeContainerSyncTolerations{}
a.actionImpl = newActionImplDefRef(action, actionCtx)
return a
}
type actionRuntimeContainerSyncTolerations struct {
// actionImpl implement timeout and member id functions
actionImpl
actionEmptyCheckProgress
}
// Start starts the action for changing conditions on the provided member.
func (a actionRuntimeContainerSyncTolerations) Start(ctx context.Context) (bool, error) {
m, ok := a.actionCtx.GetMemberStatusByID(a.action.MemberID)
if !ok {
a.log.Info("member is gone already")
return true, nil
}
cache, ok := a.actionCtx.ACS().ClusterCache(m.ClusterID)
if !ok {
return true, errors.Errorf("Client is not ready")
}
memberName := m.ArangoMemberName(a.actionCtx.GetName(), a.action.Group)
member, ok := cache.ArangoMember().V1().GetSimple(memberName)
if !ok {
return false, errors.Errorf("ArangoMember %s not found", memberName)
}
pod, ok := cache.Pod().V1().GetSimple(m.Pod.GetName())
if !ok {
a.log.Str("podName", m.Pod.GetName()).Info("pod is not present")
return true, nil
}
currentTolerations := pod.Spec.Tolerations
expectedTolerations := member.Spec.Template.PodSpec.Spec.Tolerations
calculatedTolerations := tolerations.MergeTolerationsIfNotFound(currentTolerations, expectedTolerations)
if reflect.DeepEqual(currentTolerations, calculatedTolerations) {
return true, nil
}
p, err := patch.NewPatch(patch.ItemReplace(patch.NewPath("spec", "tolerations"), calculatedTolerations)).Marshal()
if err != nil {
return false, errors.Wrapf(err, "Unable to create patch")
}
nctx, c := globals.GetGlobalTimeouts().Kubernetes().WithTimeout(ctx)
defer c()
if _, err := a.actionCtx.ACS().CurrentClusterCache().PodsModInterface().V1().Patch(nctx, pod.GetName(), types.JSONPatchType, p, meta.PatchOptions{}); err != nil {
return false, errors.Wrapf(err, "Unable to apply patch")
}
return true, nil
}