mirror of https://github.com/kubernetes/kops.git
79 lines
2.5 KiB
Go
79 lines
2.5 KiB
Go
/*
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Copyright 2022 The Kubernetes Authors.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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package applyset
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import (
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"k8s.io/apimachinery/pkg/runtime/schema"
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"k8s.io/apimachinery/pkg/types"
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"k8s.io/klog/v2"
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)
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// ApplyResults contains the results of an Apply operation.
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type ApplyResults struct {
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total int
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applySuccessCount int
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applyFailCount int
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healthyCount int
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unhealthyCount int
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}
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// AllApplied is true if the desired state has been successfully applied for all objects.
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// Note: you likely also want to check AllHealthy, if you want to be sure the objects are "ready".
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func (r *ApplyResults) AllApplied() bool {
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r.checkInvariants()
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return r.applyFailCount == 0
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}
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// AllHealthy is true if all the objects have been applied and have converged to a "ready" state.
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// Note that this is only meaningful if AllApplied is true.
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func (r *ApplyResults) AllHealthy() bool {
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r.checkInvariants()
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return r.unhealthyCount == 0
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}
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// checkInvariants is an internal function that warns if the object doesn't match the expected invariants.
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func (r *ApplyResults) checkInvariants() {
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if r.total != (r.applySuccessCount + r.applyFailCount) {
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klog.Warningf("consistency error (apply counts): %#v", r)
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} else if r.total != (r.healthyCount + r.unhealthyCount) {
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// This "invariant" only holds when all objects could be applied
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klog.Warningf("consistency error (healthy counts): %#v", r)
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}
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}
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// applyError records that the apply of an object failed with an error.
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func (r *ApplyResults) applyError(gvk schema.GroupVersionKind, nn types.NamespacedName, err error) {
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r.applyFailCount++
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klog.Warningf("error from apply on %s %s: %v", gvk, nn, err)
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}
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// applySuccess records that an object was applied and this succeeded.
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func (r *ApplyResults) applySuccess(gvk schema.GroupVersionKind, nn types.NamespacedName) {
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r.applySuccessCount++
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}
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// reportHealth records the health of an object.
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func (r *ApplyResults) reportHealth(gvk schema.GroupVersionKind, nn types.NamespacedName, isHealthy bool) {
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if isHealthy {
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r.healthyCount++
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} else {
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r.unhealthyCount++
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}
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}
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