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* Adding explicit MPL license for sub-package This directory and its subdirectories (packages) contain files licensed with the MPLv2 `LICENSE` file in this directory and are intentionally licensed separately from the BSL `LICENSE` file at the root of this repository. * Adding explicit MPL license for sub-package This directory and its subdirectories (packages) contain files licensed with the MPLv2 `LICENSE` file in this directory and are intentionally licensed separately from the BSL `LICENSE` file at the root of this repository. * Updating the license from MPL to Business Source License Going forward, this project will be licensed under the Business Source License v1.1. Please see our blog post for more details at <Blog URL>, FAQ at www.hashicorp.com/licensing-faq, and details of the license at www.hashicorp.com/bsl. * add missing license headers * Update copyright file headers to BUSL-1.1 * Update copyright file headers to BUSL-1.1 * Update copyright file headers to BUSL-1.1 * Update copyright file headers to BUSL-1.1 * Update copyright file headers to BUSL-1.1 * Update copyright file headers to BUSL-1.1 * Update copyright file headers to BUSL-1.1 * Update copyright file headers to BUSL-1.1 * Update copyright file headers to BUSL-1.1 * Update copyright file headers to BUSL-1.1 * Update copyright file headers to BUSL-1.1 * Update copyright file headers to BUSL-1.1 * Update copyright file headers to BUSL-1.1 * Update copyright file headers to BUSL-1.1 * Update copyright file headers to BUSL-1.1 --------- Co-authored-by: hashicorp-copywrite[bot] <110428419+hashicorp-copywrite[bot]@users.noreply.github.com>
86 lines
2.3 KiB
Go
86 lines
2.3 KiB
Go
// Copyright (c) HashiCorp, Inc.
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// SPDX-License-Identifier: BUSL-1.1
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package autoconf
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import (
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"fmt"
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"os"
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"path/filepath"
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"github.com/hashicorp/consul/proto/private/pbautoconf"
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"google.golang.org/protobuf/encoding/protojson"
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)
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const (
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// autoConfigFileName is the name of the file that the agent auto-config settings are
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// stored in within the data directory
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autoConfigFileName = "auto-config.json"
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)
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var (
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pbMarshaler = &protojson.MarshalOptions{
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UseProtoNames: false,
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UseEnumNumbers: false,
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Indent: " ",
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EmitUnpopulated: true,
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}
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pbUnmarshaler = &protojson.UnmarshalOptions{
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DiscardUnknown: false,
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}
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)
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func (ac *AutoConfig) readPersistedAutoConfig() (*pbautoconf.AutoConfigResponse, error) {
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if ac.config.DataDir == "" {
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// no data directory means we don't have anything to potentially load
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return nil, nil
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}
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path := filepath.Join(ac.config.DataDir, autoConfigFileName)
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ac.logger.Debug("attempting to restore any persisted configuration", "path", path)
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content, err := os.ReadFile(path)
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if err == nil {
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var resp pbautoconf.AutoConfigResponse
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if err := pbUnmarshaler.Unmarshal(content, &resp); err != nil {
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return nil, fmt.Errorf("failed to decode persisted auto-config data: %w", err)
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}
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ac.logger.Info("read persisted configuration", "path", path)
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return &resp, nil
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}
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if !os.IsNotExist(err) {
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return nil, fmt.Errorf("failed to load %s: %w", path, err)
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}
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// ignore non-existence errors as that is an indicator that we haven't
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// performed the auto configuration before
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return nil, nil
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}
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func (ac *AutoConfig) persistAutoConfig(resp *pbautoconf.AutoConfigResponse) error {
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// now that we know the configuration is generally fine including TLS certs go ahead and persist it to disk.
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if ac.config.DataDir == "" {
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ac.logger.Debug("not persisting auto-config settings because there is no data directory")
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return nil
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}
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serialized, err := pbMarshaler.Marshal(resp)
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if err != nil {
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return fmt.Errorf("failed to encode auto-config response as JSON: %w", err)
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}
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path := filepath.Join(ac.config.DataDir, autoConfigFileName)
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err = os.WriteFile(path, serialized, 0660)
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if err != nil {
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return fmt.Errorf("failed to write auto-config configurations: %w", err)
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}
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ac.logger.Debug("auto-config settings were persisted to disk")
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return nil
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}
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