This caching is enabled by wrapping the `secrets.Manager` returned by `DefaultSecretsProvider.OfType` in an outer `secrets.Manager` that cooperates with `stack.{Serialize,Deserialize}PropertyValue`. Ciphertext is cached on a per-secret-instance basis (i.e. not a per-plaintext-value basis). Cached ciphertext is only reused if the plaintext for the secret value has not changed. Entries are inserted into the cache upon both encryption and decryption so that values that originated from ciphertext and that have not changed can aoid re-encryption. Contributes to #3178.
58 lines
2 KiB
Go
58 lines
2 KiB
Go
// Copyright 2016-2018, Pulumi Corporation.
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package secrets
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import (
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"encoding/json"
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"github.com/pulumi/pulumi/pkg/resource/config"
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)
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// Manager provides the interface for providing stack encryption.
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type Manager interface {
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// Type retruns a string that reflects the type of this provider. This is serialized along with the state of
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// the manager into the deployment such that we can re-construct the correct manager when deserializing a
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// deployment into a snapshot.
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Type() string
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// An opaque state, which can be JSON serialized and used later to reconstruct the provider when deserializing
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// the deployment into a snapshot.
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State() interface{}
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// Encrypter returns a `config.Encrypter` that can be used to encrypt values when serializing a snapshot into a
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// deployment, or an error if one can not be constructed.
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Encrypter() (config.Encrypter, error)
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// Decrypter returns a `config.Decrypter` that can be used to decrypt values when deserializing a snapshot from a
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// deployment, or an error if one can not be constructed.
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Decrypter() (config.Decrypter, error)
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}
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// AreCompatible returns true if the two Managers are of the same type and have the same state.
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func AreCompatible(a, b Manager) bool {
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if a == nil || b == nil {
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return a == nil && b == nil
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}
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if a.Type() != b.Type() {
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return false
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}
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as, err := json.Marshal(a.State())
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if err != nil {
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return false
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}
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bs, err := json.Marshal(b.State())
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if err != nil {
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return false
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}
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return string(as) == string(bs)
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}
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