70 lines
2.5 KiB
Go
70 lines
2.5 KiB
Go
/*
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Copyright 2023 The Flux 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 action
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import (
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"github.com/opencontainers/go-digest"
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"helm.sh/helm/v3/pkg/chart"
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"helm.sh/helm/v3/pkg/chartutil"
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v2 "github.com/fluxcd/helm-controller/api/v2beta2"
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intchartutil "github.com/fluxcd/helm-controller/internal/chartutil"
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)
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const (
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differentGenerationReason = "generation differs from last attempt"
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differentRevisionReason = "chart version differs from last attempt"
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differentValuesReason = "values differ from last attempt"
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resetRequestedReason = "reset requested through annotation"
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)
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// MustResetFailures returns a reason and true if the HelmRelease's status
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// indicates that the HelmRelease failure counters must be reset.
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// This is the case if the data used to make the last (failed) attempt has
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// changed in a way that indicates that a new attempt should be made.
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// For example, a change in generation, chart version, or values.
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// If no change is detected, an empty string is returned along with false.
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func MustResetFailures(obj *v2.HelmRelease, chart *chart.Metadata, values chartutil.Values) (string, bool) {
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// Always check if a reset is requested.
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// This is done first, so that the HelmReleaseStatus.LastHandledResetAt
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// field is updated even if the reset request is not handled due to other
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// diverging data.
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resetRequested := v2.ShouldHandleResetRequest(obj)
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switch {
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case obj.Status.LastAttemptedGeneration != obj.Generation:
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return differentGenerationReason, true
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case obj.Status.GetLastAttemptedRevision() != chart.Version:
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return differentRevisionReason, true
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case obj.Status.LastAttemptedConfigDigest != "" || obj.Status.LastAttemptedValuesChecksum != "":
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d := obj.Status.LastAttemptedConfigDigest
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if d == "" {
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// TODO: remove this when the deprecated field is removed.
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d = "sha1:" + obj.Status.LastAttemptedValuesChecksum
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}
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if ok := intchartutil.VerifyValues(digest.Digest(d), values); !ok {
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return differentValuesReason, true
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}
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}
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if resetRequested {
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return resetRequestedReason, true
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}
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return "", false
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}
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