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c9d398d01e
This PR unpacks the downloaded ConfigMap to a set of files on the node. This enables other config files to ride alongside the KubeletConfiguration, and the KubeletConfiguration to refer to these cohabitants with relative paths. This PR also stops storing dynamic config metadata (e.g. current, last-known-good config records) in the same directory as config checkpoints. Instead, it splits the storage into `meta` and `checkpoints` dirs.
56 lines
1.4 KiB
Go
56 lines
1.4 KiB
Go
/*
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Copyright 2017 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 checkpoint
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import (
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"fmt"
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apiv1 "k8s.io/api/core/v1"
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)
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const configMapConfigKey = "kubelet"
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// configMapPayload implements Payload, backed by a v1/ConfigMap config source object
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type configMapPayload struct {
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cm *apiv1.ConfigMap
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}
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var _ Payload = (*configMapPayload)(nil)
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// NewConfigMapPayload constructs a Payload backed by a ConfigMap, which must have a non-empty UID
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func NewConfigMapPayload(cm *apiv1.ConfigMap) (Payload, error) {
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if cm == nil {
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return nil, fmt.Errorf("ConfigMap must be non-nil to be a Payload")
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} else if len(cm.ObjectMeta.UID) == 0 {
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return nil, fmt.Errorf("ConfigMap must have a UID to be a Payload")
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}
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return &configMapPayload{cm}, nil
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}
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func (p *configMapPayload) UID() string {
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return string(p.cm.UID)
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}
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func (p *configMapPayload) Files() map[string]string {
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return p.cm.Data
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}
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func (p *configMapPayload) object() interface{} {
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return p.cm
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}
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