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https://github.com/kubevela/kubevela.git
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55 lines
2.0 KiB
Go
55 lines
2.0 KiB
Go
/*
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Copyright 2021 The KubeVela 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 workloads
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import (
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"fmt"
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"k8s.io/apimachinery/pkg/util/intstr"
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"github.com/oam-dev/kubevela/apis/standard.oam.dev/v1alpha1"
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)
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// VerifySumOfBatchSizes verifies that the the sum of all the batch replicas is valid given the total replica
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// each batch replica can be absolute or a percentage
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func VerifySumOfBatchSizes(rolloutSpec *v1alpha1.RolloutPlan, totalReplicas int32) error {
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// if not set, the sum of all the batch sizes minus the last batch cannot be more than the totalReplicas
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totalRollout := 0
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for i := 0; i < len(rolloutSpec.RolloutBatches)-1; i++ {
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rb := rolloutSpec.RolloutBatches[i]
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batchSize, _ := intstr.GetValueFromIntOrPercent(&rb.Replicas, int(totalReplicas), true)
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totalRollout += batchSize
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}
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if totalRollout >= int(totalReplicas) {
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return fmt.Errorf("the rollout plan batch size mismatch, total batch size = %d, totalReplicas size = %d",
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totalRollout, totalReplicas)
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}
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// include the last batch if it has an int value
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// we ignore the last batch percentage since it is very likely to cause rounding errors
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lastBatch := rolloutSpec.RolloutBatches[len(rolloutSpec.RolloutBatches)-1]
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if lastBatch.Replicas.Type == intstr.Int {
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totalRollout += int(lastBatch.Replicas.IntVal)
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// now that they should be the same
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if totalRollout != int(totalReplicas) {
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return fmt.Errorf("the rollout plan batch size mismatch, total batch size = %d, totalReplicas size = %d",
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totalRollout, totalReplicas)
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}
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}
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return nil
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}
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