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Published: Feb 7, 2024 License: MPL-2.0 Imports: 33 Imported by: 39

README

Vault Plugin: Key-Value Secrets Backend Build Status

This is a standalone backend plugin for use with Hashicorp Vault. This plugin provides Key-Value functionality to Vault.

Please note: We take Vault's security and our users' trust very seriously. If you believe you have found a security issue in Vault, please responsibly disclose by contacting us at security@hashicorp.com.

- Vault Website: https://www.vaultproject.io
- KV Docs: https://www.vaultproject.io/docs/secrets/kv/index.html
- Main Project Github: https://www.github.com/hashicorp/vault

Getting Started

This is a Vault plugin and is meant to work with Vault. This guide assumes you have already installed Vault and have a basic understanding of how Vault works.

Otherwise, first read this guide on how to get started with Vault.

To learn specifically about how plugins work, see documentation on Vault plugins.

Usage

Please see documentation for the plugin on the Vault website.

This plugin is currently built into Vault and by default is accessed at kv. To enable this in a running Vault server:

$ vault secrets enable kv
Success! Enabled the kv secrets engine at: kv/

Additionally starting with Vault 0.10 this backend is by default mounted at secret/.

Developing

If you wish to work on this plugin, you'll first need Go installed on your machine (version 1.10+ is required).

For local dev first make sure Go is properly installed, including setting up a GOPATH. Next, clone this repository into $GOPATH/src/github.com/hashicorp/vault-plugin-secrets-kv. You can then download any required build tools by bootstrapping your environment:

$ make bootstrap

To compile a development version of this plugin, run make or make dev. This will put the plugin binary in the bin and $GOPATH/bin folders. dev mode will only generate the binary for your platform and is faster:

$ make
$ make dev

Once you've done that, there are two approaches to testing your new plugin version in Vault. You can add a temporary replace declaration in your local Vault checkout's go.mod (above the require declarations), such as:

replace github.com/hashicorp/vault-plugin-secrets-kv => /path/to/your/project/vault-plugin-secrets-kv

Alternatively, you could go through the plugin process. To do this, put the plugin binary into a location of your choice. This directory will be specified as the plugin_directory in the Vault config used to start the server.

...
plugin_directory = "path/to/plugin/directory"
...

Start a Vault server with this config file:

$ vault server -config=path/to/config.json ...
...

Once the server is started, register the plugin in the Vault server's plugin catalog:

$ vault plugin register \
        -sha256=<expected SHA256 Hex value of the plugin binary> \
        -command="vault-plugin-secrets-kv" \
        secret \
        kv

Note you should generate a new sha256 checksum if you have made changes to the plugin. Example using openssl:

openssl dgst -sha256 $GOPATH/vault-plugin-secrets-kv
...
SHA256(.../go/bin/vault-plugin-secrets-kv)= 896c13c0f5305daed381952a128322e02bc28a57d0c862a78cbc2ea66e8c6fa1

Enable the auth plugin backend using the secrets enable plugin command:

$ vault secrets enable -plugin-name='kv' plugin
...

Successfully enabled 'plugin' at 'kv'!
Tests

If you are developing this plugin and want to verify it is still functioning (and you haven't broken anything else), we recommend running the tests.

To run the tests, invoke make test:

$ make test

You can also specify a TESTARGS variable to filter tests like so:

$ make test TESTARGS='--run=TestConfig'

Documentation

Index

Constants

This section is empty.

Variables

View Source
var File_types_proto protoreflect.FileDescriptor

Functions

func Factory

func Factory(ctx context.Context, conf *logical.BackendConfig) (logical.Backend, error)

Factory will return a logical backend of type versionedKVBackend or PassthroughBackend based on the config passed in.

func LeaseSwitchedPassthroughBackend

func LeaseSwitchedPassthroughBackend(ctx context.Context, conf *logical.BackendConfig, leases bool) (logical.Backend, error)

LeaseSwitchedPassthroughBackend returns a PassthroughBackend with leases switched on or off

func LeasedPassthroughBackendFactory

func LeasedPassthroughBackendFactory(ctx context.Context, conf *logical.BackendConfig) (logical.Backend, error)

LeasedPassthroughBackendFactory returns a PassthroughBackend with leases switched on

func PassthroughBackendFactory

func PassthroughBackendFactory(ctx context.Context, conf *logical.BackendConfig) (logical.Backend, error)

PassthroughBackendFactory returns a PassthroughBackend with leases switched off

func VersionedKVFactory

func VersionedKVFactory(ctx context.Context, conf *logical.BackendConfig) (logical.Backend, error)

VersionedKVFactory returns a new KVV2 backend as logical.Backend.

Types

type Configuration

type Configuration struct {
	MaxVersions        uint32               `protobuf:"varint,1,opt,name=max_versions,json=maxVersions,proto3" json:"max_versions,omitempty"`
	CasRequired        bool                 `protobuf:"varint,2,opt,name=cas_required,json=casRequired,proto3" json:"cas_required,omitempty"`
	DeleteVersionAfter *durationpb.Duration `protobuf:"bytes,3,opt,name=delete_version_after,json=deleteVersionAfter,proto3" json:"delete_version_after,omitempty"`
	// contains filtered or unexported fields
}

If values are added to this, be sure to update the config() function

func (*Configuration) Descriptor deprecated

func (*Configuration) Descriptor() ([]byte, []int)

Deprecated: Use Configuration.ProtoReflect.Descriptor instead.

func (*Configuration) DisableDeleteVersionAfter added in v0.5.2

func (c *Configuration) DisableDeleteVersionAfter()

DisableDeleteVersionAfter disables DeleteVersionAfter.

func (*Configuration) GetCasRequired

func (x *Configuration) GetCasRequired() bool

func (*Configuration) GetDeleteVersionAfter added in v0.5.2

func (x *Configuration) GetDeleteVersionAfter() *durationpb.Duration

func (*Configuration) GetMaxVersions

func (x *Configuration) GetMaxVersions() uint32

func (*Configuration) IsDeleteVersionAfterDisabled added in v0.5.2

func (c *Configuration) IsDeleteVersionAfterDisabled() bool

IsDeleteVersionAfterDisabled returns true if DeleteVersionAfter is disabled.

func (*Configuration) ProtoMessage

func (*Configuration) ProtoMessage()

func (*Configuration) ProtoReflect added in v0.10.0

func (x *Configuration) ProtoReflect() protoreflect.Message

func (*Configuration) Reset

func (x *Configuration) Reset()

func (*Configuration) ResetDeleteVersionAfter added in v0.5.2

func (c *Configuration) ResetDeleteVersionAfter()

ResetDeleteVersionAfter resets the DeleteVersionAfter to the default value.

func (*Configuration) String

func (x *Configuration) String() string

type KeyMetadata

type KeyMetadata struct {

	// Key is the key for this entry
	Key string `protobuf:"bytes,1,opt,name=key,proto3" json:"key,omitempty"`
	// Versions is the map of versionID -> VersionMetadata.
	// Useful when listing all versions.
	Versions map[uint64]*VersionMetadata `` /* 158-byte string literal not displayed */
	// CurrentVersion is the latest version of the value
	CurrentVersion uint64 `protobuf:"varint,3,opt,name=current_version,json=currentVersion,proto3" json:"current_version,omitempty"`
	// OldestVersion is the oldest version of the value.
	OldestVersion uint64 `protobuf:"varint,4,opt,name=oldest_version,json=oldestVersion,proto3" json:"oldest_version,omitempty"`
	// Created time is when the metadata was created.
	CreatedTime *timestamppb.Timestamp `protobuf:"bytes,5,opt,name=created_time,json=createdTime,proto3" json:"created_time,omitempty"`
	// Updated time was the last time the metadata version
	// was updated.
	UpdatedTime *timestamppb.Timestamp `protobuf:"bytes,6,opt,name=updated_time,json=updatedTime,proto3" json:"updated_time,omitempty"`
	// MaxVersions specifies how many versions to keep around.
	// If empty value, defaults to the configured Max
	// for the mount.
	MaxVersions uint32 `protobuf:"varint,7,opt,name=max_versions,json=maxVersions,proto3" json:"max_versions,omitempty"`
	// CasRequired specifies if the cas parameter is
	// required for this key
	CasRequired bool `protobuf:"varint,8,opt,name=cas_required,json=casRequired,proto3" json:"cas_required,omitempty"`
	// DeleteVersionAfter specifies how long to keep versions around. If
	// empty value, defaults to the configured delete_version_after for the
	// mount.
	DeleteVersionAfter *durationpb.Duration `protobuf:"bytes,9,opt,name=delete_version_after,json=deleteVersionAfter,proto3" json:"delete_version_after,omitempty"`
	// CustomMetadata is a map of string key-value pairs used to store
	// user-provided information about the secret.
	CustomMetadata map[string]string `` /* 192-byte string literal not displayed */
	// contains filtered or unexported fields
}

func (*KeyMetadata) AddVersion

func (k *KeyMetadata) AddVersion(createdTime, deletionTime *timestamp.Timestamp, configMaxVersions uint32) (*VersionMetadata, uint64)

AddVersion adds a version to the key metadata and moves the sliding window of max versions. It returns the newly added version and the version to delete from storage.

func (*KeyMetadata) Descriptor deprecated

func (*KeyMetadata) Descriptor() ([]byte, []int)

Deprecated: Use KeyMetadata.ProtoReflect.Descriptor instead.

func (*KeyMetadata) GetCasRequired

func (x *KeyMetadata) GetCasRequired() bool

func (*KeyMetadata) GetCreatedTime

func (x *KeyMetadata) GetCreatedTime() *timestamppb.Timestamp

func (*KeyMetadata) GetCurrentVersion

func (x *KeyMetadata) GetCurrentVersion() uint64

func (*KeyMetadata) GetCustomMetadata added in v0.10.0

func (x *KeyMetadata) GetCustomMetadata() map[string]string

func (*KeyMetadata) GetDeleteVersionAfter added in v0.5.2

func (x *KeyMetadata) GetDeleteVersionAfter() *durationpb.Duration

func (*KeyMetadata) GetKey

func (x *KeyMetadata) GetKey() string

func (*KeyMetadata) GetMaxVersions

func (x *KeyMetadata) GetMaxVersions() uint32

func (*KeyMetadata) GetOldestVersion

func (x *KeyMetadata) GetOldestVersion() uint64

func (*KeyMetadata) GetUpdatedTime

func (x *KeyMetadata) GetUpdatedTime() *timestamppb.Timestamp

func (*KeyMetadata) GetVersions

func (x *KeyMetadata) GetVersions() map[uint64]*VersionMetadata

func (*KeyMetadata) ProtoMessage

func (*KeyMetadata) ProtoMessage()

func (*KeyMetadata) ProtoReflect added in v0.10.0

func (x *KeyMetadata) ProtoReflect() protoreflect.Message

func (*KeyMetadata) Reset

func (x *KeyMetadata) Reset()

func (*KeyMetadata) String

func (x *KeyMetadata) String() string

type PassthroughBackend

type PassthroughBackend struct {
	*framework.Backend
	// contains filtered or unexported fields
}

PassthroughBackend is used storing secrets directly into the physical backend. The secrets are encrypted in the durable storage and custom TTL information can be specified, but otherwise this backend doesn't do anything fancy.

type UpgradeInfo

type UpgradeInfo struct {

	// Started time is when the upgrade was started.
	StartedTime *timestamppb.Timestamp `protobuf:"bytes,1,opt,name=started_time,json=startedTime,proto3" json:"started_time,omitempty"`
	// done is set to true once the backend has been successfully
	// upgraded.
	Done bool `protobuf:"varint,2,opt,name=done,proto3" json:"done,omitempty"`
	// contains filtered or unexported fields
}

func (*UpgradeInfo) Descriptor deprecated

func (*UpgradeInfo) Descriptor() ([]byte, []int)

Deprecated: Use UpgradeInfo.ProtoReflect.Descriptor instead.

func (*UpgradeInfo) GetDone

func (x *UpgradeInfo) GetDone() bool

func (*UpgradeInfo) GetStartedTime

func (x *UpgradeInfo) GetStartedTime() *timestamppb.Timestamp

func (*UpgradeInfo) ProtoMessage

func (*UpgradeInfo) ProtoMessage()

func (*UpgradeInfo) ProtoReflect added in v0.10.0

func (x *UpgradeInfo) ProtoReflect() protoreflect.Message

func (*UpgradeInfo) Reset

func (x *UpgradeInfo) Reset()

func (*UpgradeInfo) String

func (x *UpgradeInfo) String() string

type Version

type Version struct {

	// Data is a JSON object with string keys that
	// represents the user supplied data.
	Data []byte `protobuf:"bytes,1,opt,name=data,proto3" json:"data,omitempty"`
	// CreatedTime is when the version was created.
	CreatedTime *timestamppb.Timestamp `protobuf:"bytes,2,opt,name=created_time,json=createdTime,proto3" json:"created_time,omitempty"`
	// DeletionTime is the time this version becomes invalid.
	// Set to Now() to delete the version before the configured
	// deletion time.
	DeletionTime *timestamppb.Timestamp `protobuf:"bytes,3,opt,name=deletion_time,json=deletionTime,proto3" json:"deletion_time,omitempty"`
	// contains filtered or unexported fields
}

func (*Version) Descriptor deprecated

func (*Version) Descriptor() ([]byte, []int)

Deprecated: Use Version.ProtoReflect.Descriptor instead.

func (*Version) GetCreatedTime

func (x *Version) GetCreatedTime() *timestamppb.Timestamp

func (*Version) GetData

func (x *Version) GetData() []byte

func (*Version) GetDeletionTime

func (x *Version) GetDeletionTime() *timestamppb.Timestamp

func (*Version) ProtoMessage

func (*Version) ProtoMessage()

func (*Version) ProtoReflect added in v0.10.0

func (x *Version) ProtoReflect() protoreflect.Message

func (*Version) Reset

func (x *Version) Reset()

func (*Version) String

func (x *Version) String() string

type VersionMetadata

type VersionMetadata struct {

	// CreatedTime is when the version was created.
	CreatedTime *timestamppb.Timestamp `protobuf:"bytes,1,opt,name=created_time,json=createdTime,proto3" json:"created_time,omitempty"`
	// DeletionTime is the time this version becomes invalid.
	// Set to Now() to delete the version before the configured
	// delete time.
	DeletionTime *timestamppb.Timestamp `protobuf:"bytes,2,opt,name=deletion_time,json=deletionTime,proto3" json:"deletion_time,omitempty"`
	// Destroyed is used to specify this version is
	// a has been removed and the underlying data deleted.
	Destroyed bool `protobuf:"varint,3,opt,name=destroyed,proto3" json:"destroyed,omitempty"`
	// contains filtered or unexported fields
}

func (*VersionMetadata) Descriptor deprecated

func (*VersionMetadata) Descriptor() ([]byte, []int)

Deprecated: Use VersionMetadata.ProtoReflect.Descriptor instead.

func (*VersionMetadata) GetCreatedTime

func (x *VersionMetadata) GetCreatedTime() *timestamppb.Timestamp

func (*VersionMetadata) GetDeletionTime

func (x *VersionMetadata) GetDeletionTime() *timestamppb.Timestamp

func (*VersionMetadata) GetDestroyed

func (x *VersionMetadata) GetDestroyed() bool

func (*VersionMetadata) ProtoMessage

func (*VersionMetadata) ProtoMessage()

func (*VersionMetadata) ProtoReflect added in v0.10.0

func (x *VersionMetadata) ProtoReflect() protoreflect.Message

func (*VersionMetadata) Reset

func (x *VersionMetadata) Reset()

func (*VersionMetadata) String

func (x *VersionMetadata) String() string

Directories

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