/
regeneration_context.go
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/
regeneration_context.go
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// Copyright 2016-2019 Authors of Cilium
//
// 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.
package regeneration
import (
"context"
)
// DatapathRegenerationLevel determines what is expected of the datapath when
// a regeneration event is processed.
type DatapathRegenerationLevel int
const (
// Invalid is the default level to enforce explicit setting of
// the regeneration level.
Invalid DatapathRegenerationLevel = iota
// RegenerateWithoutDatapath indicates that datapath rebuild or reload
// is not required to implement this regeneration.
RegenerateWithoutDatapath
// RegenerateWithDatapathLoad indicates that the datapath must be
// reloaded but not recompiled to implement this regeneration.
RegenerateWithDatapathLoad
// RegenerateWithDatapathRewrite indicates that the datapath must be
// recompiled and reloaded to implement this regeneration.
RegenerateWithDatapathRewrite
// RegenerateWithDatapathRebuild indicates that the datapath must be
// fully recompiled and reloaded without using any cached templates.
RegenerateWithDatapathRebuild
)
// String converts a DatapathRegenerationLevel into a human-readable string.
func (r DatapathRegenerationLevel) String() string {
switch r {
case Invalid:
return "invalid"
case RegenerateWithoutDatapath:
return "no-rebuild"
case RegenerateWithDatapathLoad:
return "reload"
case RegenerateWithDatapathRewrite:
return "rewrite+load"
case RegenerateWithDatapathRebuild:
return "compile+load"
default:
break
}
return "BUG: Unknown DatapathRegenerationLevel"
}
// ExternalRegenerationMetadata contains any information about a regeneration that
// the endpoint subsystem should be made aware of for a given endpoint.
type ExternalRegenerationMetadata struct {
// Reason provides context to source for the regeneration, which is
// used to generate useful log messages.
Reason string
// RegenerationLevel forces datapath regeneration according to the
// levels defined in the DatapathRegenerationLevel description.
RegenerationLevel DatapathRegenerationLevel
ParentContext context.Context
}