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store.go
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package store
import (
"context"
"crypto/tls"
"errors"
"fmt"
"github.com/coreos/etcd/clientv3"
jwt "github.com/dgrijalva/jwt-go"
corev2 "github.com/sensu/sensu-go/api/core/v2"
"github.com/sensu/sensu-go/types"
)
// ErrAlreadyExists is returned when an object already exists
type ErrAlreadyExists struct {
Key string
}
func (e *ErrAlreadyExists) Error() string {
return fmt.Sprintf("could not create the key %s", e.Key)
}
// ErrDecode is returned when an object could not be decoded
type ErrDecode struct {
Key string
Err error
}
func (e *ErrDecode) Error() string {
return fmt.Sprintf("could not decode the key %s: %s", e.Key, e.Err.Error())
}
// ErrEncode is returned when an object could not be decoded
type ErrEncode struct {
Key string
Err error
}
func (e *ErrEncode) Error() string {
return fmt.Sprintf("could not encode the key %s: %s", e.Key, e.Err.Error())
}
// ErrNamespaceMissing is returned when the user tries to manipulate a resource
// within a namespace that does not exist
type ErrNamespaceMissing struct {
Namespace string
}
func (e *ErrNamespaceMissing) Error() string {
return fmt.Sprintf("the namespace %s does not exist", e.Namespace)
}
// ErrNotFound is returned when a key is not found in the store
type ErrNotFound struct {
Key string
}
func (e *ErrNotFound) Error() string {
return fmt.Sprintf("key %s not found", e.Key)
}
// ErrNotValid is returned when an object failed validation
type ErrNotValid struct {
Err error
}
func (e *ErrNotValid) Error() string {
return fmt.Sprintf("resource is invalid: %s", e.Err.Error())
}
// ErrInternal is returned when something generally bad happened while
// interacting with the store. Other, more specific errors should preferably be
// returned when appropriate.
type ErrInternal struct {
Message string
}
func (e *ErrInternal) Error() string {
return fmt.Sprintf("internal error: %s", e.Message)
}
// SelectionPredicate represents the way to select resources from storage
type SelectionPredicate struct {
// Continue provides the key from which the selection should start. If
// returned empty from the store, it indicates that there's no additional
// resources available
Continue string
// Limit indicates the number of resources to retrieve
Limit int64
// Subcollection represents a sub-collection of the primary collection
Subcollection string
}
// A WatchEventCheckConfig contains the modified store object and the action that occured
// during the modification.
type WatchEventCheckConfig struct {
CheckConfig *types.CheckConfig
Action WatchActionType
}
// A WatchEventHookConfig contains the modified asset object and the action that occurred
// during the modification.
type WatchEventHookConfig struct {
HookConfig *types.HookConfig
Action WatchActionType
}
// WatchEventEntity is a notification that the entity store has been updated.
type WatchEventEntity struct {
Entity *corev2.Entity
Action WatchActionType
}
// WatchEventTessenConfig is a notification that the tessen config store has been updated.
type WatchEventTessenConfig struct {
TessenConfig *corev2.TessenConfig
Action WatchActionType
}
// Store is used to abstract the durable storage used by the Sensu backend
// processses. Each Sensu resources is represented by its own interface. A
// MockStore is available in order to mock a store implementation
type Store interface {
// AssetStore provides an interface for managing checks assets
AssetStore
// AuthenticationStore provides an interface for managing the JWT secret
AuthenticationStore
// CheckConfigStore provides an interface for managing checks configuration
CheckConfigStore
// ClusterIDStore provides an interface for managing the sensu cluster id
ClusterIDStore
// EntityStore provides an interface for managing entities
EntityStore
// EventStore provides an interface for managing events
EventStore
// EventFilterStore provides an interface for managing events filters
EventFilterStore
// HandlerStore provides an interface for managing events handlers
HandlerStore
// HealthStore provides an interface for getting cluster health information
HealthStore
// HookConfigStore provides an interface for managing hooks configuration
HookConfigStore
// KeepaliveStore provides an interface for managing entities keepalives
KeepaliveStore
// MutatorStore provides an interface for managing events mutators
MutatorStore
// NamespaceStore provides an interface for managing namespaces
NamespaceStore
// ClusterRoleStore provides an interface for managing cluster roles
ClusterRoleStore
// ClusterRoleBindingStore provides an interface for managing cluster role bindings
ClusterRoleBindingStore
// RoleStore provides an interface for managing roles
RoleStore
// RoleBindingStore provides an interface for managing role bindings
RoleBindingStore
// SilencedStore provides an interface for managing silenced entries,
// consisting of entities, subscriptions and/or checks
SilencedStore
// TessenConfigStore provides an interface for managing the tessen configuration
TessenConfigStore
// TokenStore provides an interface for managing the JWT access list
TokenStore
// UserStore provides an interface for managing users
UserStore
// ExtensionRegistry tracks third-party extensions.
ExtensionRegistry
// ResourceStore ...
ResourceStore
// NewInitializer returns the Initializer interfaces, which provides the
// required mechanism to verify if a store is initialized
NewInitializer() (Initializer, error)
}
// AssetStore provides methods for managing checks assets
type AssetStore interface {
// DeleteAssetByName deletes an asset using the given name and the
// namespace stored in ctx.
DeleteAssetByName(ctx context.Context, name string) error
// GetAssets returns all assets in the given ctx's namespace. A nil
// slice with no error is returned if none were found.
GetAssets(ctx context.Context, pred *SelectionPredicate) ([]*types.Asset, error)
// GetAssetByName returns an asset using the given name and the namespace
// stored in ctx. The resulting asset is nil if none was found.
GetAssetByName(ctx context.Context, name string) (*types.Asset, error)
// UpdateAsset creates or updates a given asset.
UpdateAsset(ctx context.Context, asset *types.Asset) error
}
// AuthenticationStore provides methods for managing the JWT secret
type AuthenticationStore interface {
// CreateJWTSecret create the given JWT secret and returns an error if it was
// unsuccessful or if a secret already exists.
CreateJWTSecret(secret []byte) error
// GetJWTSecret returns the JWT secret.
GetJWTSecret() ([]byte, error)
// UpdateJWTSecret updates the JWT secret with the given secret.
UpdateJWTSecret(secret []byte) error
}
// CheckConfigStore provides methods for managing checks configuration
type CheckConfigStore interface {
// DeleteCheckConfigByName deletes a check's configuration using the given name
// and the namespace stored in ctx.
DeleteCheckConfigByName(ctx context.Context, name string) error
// GetCheckConfigs returns all checks configurations in the given ctx's
// namespace. A nil slice with no error is returned if none
// were found.
GetCheckConfigs(ctx context.Context, pred *SelectionPredicate) ([]*types.CheckConfig, error)
// GetCheckConfigByName returns a check's configuration using the given name
// and the namespace stored in ctx. The resulting check is
// nil if none was found.
GetCheckConfigByName(ctx context.Context, name string) (*types.CheckConfig, error)
// UpdateCheckConfig creates or updates a given check's configuration.
UpdateCheckConfig(ctx context.Context, check *types.CheckConfig) error
// GetCheckConfigWatcher returns a channel that emits CheckConfigWatchEvents notifying
// the caller that a CheckConfig was updated. If the watcher runs into a terminal error
// or the context passed is cancelled, then the channel will be closed. The caller must
// restart the watcher, if needed.
GetCheckConfigWatcher(ctx context.Context) <-chan WatchEventCheckConfig
}
// ClusterIDStore provides methods for managing the sensu cluster id
type ClusterIDStore interface {
// CreateClusterID creates a sensu cluster id
CreateClusterID(context.Context, string) error
// GetClusterID gets the sensu cluster id
GetClusterID(context.Context) (string, error)
}
// ClusterRoleBindingStore provides methods for managing RBAC cluster role
// bindings
type ClusterRoleBindingStore interface {
// Create a given cluster role binding
CreateClusterRoleBinding(ctx context.Context, clusterRoleBinding *types.ClusterRoleBinding) error
// CreateOrUpdateRole overwrites the given cluster role binding
CreateOrUpdateClusterRoleBinding(ctx context.Context, clusterRoleBinding *types.ClusterRoleBinding) error
// DeleteRole deletes a cluster role binding using the given name.
DeleteClusterRoleBinding(ctx context.Context, name string) error
// GetRole returns a cluster role binding using the given name. An error is
// returned if no binding was found
GetClusterRoleBinding(ctx context.Context, name string) (*types.ClusterRoleBinding, error)
// ListRoles returns all cluster role binding. An error is returned if no
// binding were found
ListClusterRoleBindings(ctx context.Context, pred *SelectionPredicate) (clusterRoleBindings []*types.ClusterRoleBinding, err error)
// UpdateRole creates or updates a given cluster role binding.
UpdateClusterRoleBinding(ctx context.Context, clusterRoleBinding *types.ClusterRoleBinding) error
}
// ClusterRoleStore provides methods for managing RBAC cluster roles and rules
type ClusterRoleStore interface {
// Create a given cluster role
CreateClusterRole(ctx context.Context, clusterRole *types.ClusterRole) error
// CreateOrUpdateClusterRole overwrites the given cluster role
CreateOrUpdateClusterRole(ctx context.Context, clusterRole *types.ClusterRole) error
// DeleteClusterRole deletes a cluster role using the given name.
DeleteClusterRole(ctx context.Context, name string) error
// GetClusterRole returns a cluster role using the given name. An error is
// returned if no role was found
GetClusterRole(ctx context.Context, name string) (*types.ClusterRole, error)
// ListClusterRoles returns all cluster roles. An error is returned if no
// roles were found
ListClusterRoles(ctx context.Context, pred *SelectionPredicate) (clusterRoles []*types.ClusterRole, err error)
// UpdateClusterRole creates or updates a given cluster role.
UpdateClusterRole(ctx context.Context, clusterRole *types.ClusterRole) error
}
// HookConfigStore provides methods for managing hooks configuration
type HookConfigStore interface {
// DeleteHookConfigByName deletes a hook's configuration using the given name
// and the namespace stored in ctx.
DeleteHookConfigByName(ctx context.Context, name string) error
// GetHookConfigs returns all hooks configurations in the given ctx's
// namespace. A nil slice with no error is returned if none
// were found.
GetHookConfigs(ctx context.Context, pred *SelectionPredicate) ([]*types.HookConfig, error)
// GetHookConfigByName returns a hook's configuration using the given name and
// the namespace stored in ctx. The resulting hook is nil if none was found.
GetHookConfigByName(ctx context.Context, name string) (*types.HookConfig, error)
// UpdateHookConfig creates or updates a given hook's configuration.
UpdateHookConfig(ctx context.Context, check *types.HookConfig) error
}
// EntityStore provides methods for managing entities
type EntityStore interface {
// DeleteEntity deletes an entity using the given entity struct.
DeleteEntity(ctx context.Context, entity *types.Entity) error
// DeleteEntityByName deletes an entity using the given name and the
// namespace stored in ctx.
DeleteEntityByName(ctx context.Context, name string) error
// GetEntities returns all entities in the given ctx's namespace. A nil slice
// with no error is returned if none were found.
GetEntities(ctx context.Context, pred *SelectionPredicate) ([]*types.Entity, error)
// GetEntityByName returns an entity using the given name and the namespace stored
// in ctx. The resulting entity is nil if none was found.
GetEntityByName(ctx context.Context, name string) (*types.Entity, error)
// UpdateEntity creates or updates a given entity.
UpdateEntity(ctx context.Context, entity *types.Entity) error
GetEntityWatcher(context.Context) <-chan WatchEventEntity
}
// EventStore provides methods for managing events
type EventStore interface {
// DeleteEventByEntityCheck deletes an event using the given entity and check,
// within the namespace stored in ctx.
DeleteEventByEntityCheck(ctx context.Context, entity, check string) error
// GetEvents returns all events in the given ctx's namespace. A nil slice with
// no error is returned if none were found.
GetEvents(ctx context.Context, pred *SelectionPredicate) ([]*corev2.Event, error)
// GetEventsByEntity returns all events for the given entity within the ctx's
// namespace. A nil slice with no error is returned if none were found.
GetEventsByEntity(ctx context.Context, entity string, pred *SelectionPredicate) ([]*corev2.Event, error)
// GetEventByEntityCheck returns an event using the given entity and check,
// within the namespace stored in ctx. The resulting event
// is nil if none was found.
GetEventByEntityCheck(ctx context.Context, entity, check string) (*types.Event, error)
// UpdateEvent creates or updates a given event. It returns the updated
// event, which may be the same as the event that was passed in, and the
// previous event, if one existed, as well as any error that occurred.
UpdateEvent(ctx context.Context, event *types.Event) (old, new *types.Event, err error)
}
// EventFilterStore provides methods for managing events filters
type EventFilterStore interface {
// DeleteEventFilterByName deletes an event filter using the given name and the
// namespace stored in ctx.
DeleteEventFilterByName(ctx context.Context, name string) error
// GetEventFilters returns all filters in the given ctx's namespace. A nil
// slice with no error is returned if none were found.
GetEventFilters(ctx context.Context, pred *SelectionPredicate) ([]*types.EventFilter, error)
// GetEventFilterByName returns a filter using the given name and the
// namespace stored in ctx. The resulting filter is nil if none was found.
GetEventFilterByName(ctx context.Context, name string) (*types.EventFilter, error)
// UpdateEventFilter creates or updates a given filter.
UpdateEventFilter(ctx context.Context, filter *types.EventFilter) error
}
// HandlerStore provides methods for managing events handlers
type HandlerStore interface {
// DeleteHandlerByName deletes a handler using the given name and the
// namespace stored in ctx.
DeleteHandlerByName(ctx context.Context, name string) error
// GetHandlers returns all handlers in the given ctx's namespace. A nil slice
// with no error is returned if none were found.
GetHandlers(ctx context.Context, pred *SelectionPredicate) ([]*types.Handler, error)
// GetHandlerByName returns a handler using the given name and the namespace
// stored in ctx. The resulting handler is nil if none was found.
GetHandlerByName(ctx context.Context, name string) (*types.Handler, error)
// UpdateHandler creates or updates a given handler.
UpdateHandler(ctx context.Context, handler *types.Handler) error
}
// HealthStore provides methods for cluster health
type HealthStore interface {
GetClusterHealth(ctx context.Context, cluster clientv3.Cluster, etcdClientTLSConfig *tls.Config) *types.HealthResponse
}
// KeepaliveStore provides methods for managing entities keepalives
type KeepaliveStore interface {
// DeleteFailingKeepalive deletes a failing keepalive record for a given entity.
DeleteFailingKeepalive(ctx context.Context, entity *types.Entity) error
// GetFailingKeepalives returns a slice of failing keepalives.
GetFailingKeepalives(ctx context.Context) ([]*types.KeepaliveRecord, error)
// UpdateFailingKeepalive updates the given entity keepalive with the given expiration
// in unix timestamp format
UpdateFailingKeepalive(ctx context.Context, entity *types.Entity, expiration int64) error
}
// MutatorStore provides methods for managing events mutators
type MutatorStore interface {
// DeleteMutatorByName deletes a mutator using the given name and the
// namespace stored in ctx.
DeleteMutatorByName(ctx context.Context, name string) error
// GetMutators returns all mutators in the given ctx's namespace. A nil slice
// with no error is returned if none were found.
GetMutators(ctx context.Context, pred *SelectionPredicate) ([]*types.Mutator, error)
// GetMutatorByName returns a mutator using the given name and the
// namespace stored in ctx. The resulting mutator is nil if
// none was found.
GetMutatorByName(ctx context.Context, name string) (*types.Mutator, error)
// UpdateMutator creates or updates a given mutator.
UpdateMutator(ctx context.Context, mutator *types.Mutator) error
}
// NamespaceStore provides methods for managing namespaces
type NamespaceStore interface {
// CreateNamespace creates a given namespace
CreateNamespace(ctx context.Context, namespace *types.Namespace) error
// DeleteNamespace deletes a namespace using the given name.
DeleteNamespace(ctx context.Context, name string) error
// ListNamespaces returns all namespaces. A nil slice with no error is
// returned if none were found.
ListNamespaces(ctx context.Context, pred *SelectionPredicate) ([]*types.Namespace, error)
// GetNamespace returns a namespace using the given name. The
// result is nil if none was found.
GetNamespace(ctx context.Context, name string) (*types.Namespace, error)
// UpdateNamespace updates an existing namespace.
UpdateNamespace(ctx context.Context, org *types.Namespace) error
}
// ResourceStore ...
type ResourceStore interface {
CreateResource(ctx context.Context, resource corev2.Resource) error
CreateOrUpdateResource(ctx context.Context, resource corev2.Resource) error
DeleteResource(ctx context.Context, kind, name string) error
GetResource(ctx context.Context, name string, resource corev2.Resource) error
ListResources(ctx context.Context, kind string, resources interface{}, pred *SelectionPredicate) error
}
// RoleBindingStore provides methods for managing RBAC role bindings
type RoleBindingStore interface {
// Create a given role binding
CreateRoleBinding(ctx context.Context, roleBinding *types.RoleBinding) error
// CreateOrUpdateRole overwrites the given role binding
CreateOrUpdateRoleBinding(ctx context.Context, roleBinding *types.RoleBinding) error
// DeleteRole deletes a role binding using the given name.
DeleteRoleBinding(ctx context.Context, name string) error
// GetRole returns a role binding using the given name. An error is returned
// if no binding was found
GetRoleBinding(ctx context.Context, name string) (*types.RoleBinding, error)
// ListRoles returns all role binding. An error is returned if no binding were
// found
ListRoleBindings(ctx context.Context, pred *SelectionPredicate) (roleBindings []*types.RoleBinding, err error)
// UpdateRole creates or updates a given role binding.
UpdateRoleBinding(ctx context.Context, roleBinding *types.RoleBinding) error
}
// RoleStore provides methods for managing RBAC roles and rules
type RoleStore interface {
// Create a given role
CreateRole(ctx context.Context, role *types.Role) error
// CreateOrUpdateRole overwrites the given role
CreateOrUpdateRole(ctx context.Context, role *types.Role) error
// DeleteRole deletes a role using the given name.
DeleteRole(ctx context.Context, name string) error
// GetRole returns a role using the given name. An error is returned if no
// role was found
GetRole(ctx context.Context, name string) (*types.Role, error)
// ListRoles returns all roles. An error is returned if no roles were found
ListRoles(ctx context.Context, pred *SelectionPredicate) (roles []*types.Role, err error)
// UpdateRole creates or updates a given role.
UpdateRole(ctx context.Context, role *types.Role) error
}
// SilencedStore provides methods for managing silenced entries,
// consisting of entities, subscriptions and/or checks
type SilencedStore interface {
// DeleteSilencedEntryByName deletes an entry using the given id.
DeleteSilencedEntryByName(ctx context.Context, id ...string) error
// GetSilencedEntries returns all entries. A nil slice with no error is
// returned if none were found.
GetSilencedEntries(ctx context.Context) ([]*types.Silenced, error)
// GetSilencedEntriesByCheckName returns all entries for the given check
// within the ctx's namespace. A nil slice with no error is
// returned if none were found.
GetSilencedEntriesByCheckName(ctx context.Context, check string) ([]*types.Silenced, error)
// GetSilencedEntriesByCheckName returns all entries for the given subscription
// within the ctx's namespace. A nil slice with no error is
// returned if none were found.
GetSilencedEntriesBySubscription(ctx context.Context, subscriptions ...string) ([]*types.Silenced, error)
// GetSilencedEntryByName returns an entry using the given id and the
// namespace stored in ctx. The resulting entry is nil if
// none was found.
GetSilencedEntryByName(ctx context.Context, id string) (*types.Silenced, error)
// UpdateHandler creates or updates a given entry.
UpdateSilencedEntry(ctx context.Context, entry *types.Silenced) error
// GetSilencedEntriesByName gets all the named silenced entries.
GetSilencedEntriesByName(ctx context.Context, id ...string) ([]*types.Silenced, error)
}
// TessenConfigStore provides methods for managing the Tessen configuration
type TessenConfigStore interface {
// CreateOrUpdateTessenConfig creates or updates the tessen configuration
CreateOrUpdateTessenConfig(context.Context, *corev2.TessenConfig) error
// GetTessenConfig gets the tessen configuration
GetTessenConfig(context.Context) (*corev2.TessenConfig, error)
// GetTessenConfigWatcher returns a tessen config watcher
GetTessenConfigWatcher(context.Context) <-chan WatchEventTessenConfig
}
// TokenStore provides methods for managing the JWT access list
type TokenStore interface {
// AllowTokens adds the provided tokens to the JWT access list
AllowTokens(tokens ...*jwt.Token) error
// RevokeTokens removes tokens using the provided claims from the JWT access
// list
RevokeTokens(claims ...*corev2.Claims) error
// GetToken returns the claims of a given token ID, belonging to the given
// subject. An error is returned if no claims were found.
GetToken(subject, id string) (*types.Claims, error)
}
// UserStore provides methods for managing users
type UserStore interface {
// AuthenticateUser attempts to authenticate a user with the given username
// and hashed password. An error is returned if the user does not exist, is
// disabled or the given password does not match.
AuthenticateUser(ctx context.Context, username, password string) (*types.User, error)
// CreateUsern creates a new user with the given user struct.
CreateUser(user *types.User) error
// DeleteUser deletes a user using the given user struct.
DeleteUser(ctx context.Context, user *types.User) error
// GetUser returns a user using the given username.
GetUser(ctx context.Context, username string) (*types.User, error)
// GetUsers returns all enabled users. A nil slice with no error is
// returned if none were found.
GetUsers() ([]*types.User, error)
// GetUsers returns all users, including the disabled ones. A nil slice with
// no error is returned if none were found.
GetAllUsers(pred *SelectionPredicate) ([]*types.User, error)
// UpdateHandler updates a given user.
UpdateUser(user *types.User) error
}
// Initializer provides methods to verify if a store is initialized
type Initializer interface {
// Close closes the session to the store and unlock any mutex
Close() error
// FlagAsInitialized marks the store as initialized
FlagAsInitialized() error
// IsInitialized returns a boolean error that indicates if the store has been
// initialized or not
IsInitialized() (bool, error)
// Lock locks a mutex to avoid competing writes
Lock() error
}
// ErrNoExtension is returned when a named extension does not exist.
var ErrNoExtension = errors.New("the extension does not exist")
// ExtensionRegistry registers and tracks Sensu extensions.
type ExtensionRegistry interface {
// RegisterExtension registers an extension. It associates an extension type and
// name with a URL. The registry assumes that the extension provides
// a handler and a mutator named 'name'.
RegisterExtension(context.Context, *types.Extension) error
// DeregisterExtension deregisters an extension. If the extension does not exist,
// nil error is returned.
DeregisterExtension(ctx context.Context, name string) error
// GetExtension gets the address of a registered extension. If the extension does
// not exist, ErrNoExtension is returned.
GetExtension(ctx context.Context, name string) (*types.Extension, error)
// GetExtensions gets all the extensions for the namespace in ctx.
GetExtensions(ctx context.Context, pred *SelectionPredicate) ([]*types.Extension, error)
}