driver

package
v3.5.0-fk2 Latest Latest
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 Go to latest Published: Sep 16, 2021 License: Apache-2.0 Imports: 24 Imported by: 0

Documentation

Index

Constants

View Source 
const ConfigMapsDriverName = "ConfigMap"

ConfigMapsDriverName is the string name of the driver.

View Source 
const (
	// MemoryDriverName is the string name of this driver.
	MemoryDriverName = "Memory"
)
View Source 
const SQLDriverName = "SQL"

SQLDriverName is the string name of this driver.

View Source 
const SecretsDriverName = "Secret"

SecretsDriverName is the string name of the driver.

Variables

View Source 
var (
	// ErrReleaseNotFound indicates that a release is not found.
	ErrReleaseNotFound = errors.New("release: not found")
	// ErrReleaseExists indicates that a release already exists.
	ErrReleaseExists = errors.New("release: already exists")
	// ErrInvalidKey indicates that a release key could not be parsed.
	ErrInvalidKey = errors.New("release: invalid key")
	// ErrNoDeployedReleases indicates that there are no releases with the given key in the deployed state
	ErrNoDeployedReleases = errors.New("has no deployed releases")
)

Functions

func NewErrNoDeployedReleases 

func NewErrNoDeployedReleases(releaseName string) error

Types

type ConfigMaps 

type ConfigMaps struct {
	Log func(string, ...interface{})
	// contains filtered or unexported fields
}

ConfigMaps is a wrapper around an implementation of a kubernetes ConfigMapsInterface.

func NewConfigMaps 

func NewConfigMaps(impl corev1.ConfigMapInterface) *ConfigMaps

NewConfigMaps initializes a new ConfigMaps wrapping an implementation of the kubernetes ConfigMapsInterface.

func (*ConfigMaps) Create 

func (cfgmaps *ConfigMaps) Create(key string, rls *rspb.Release) error

Create creates a new ConfigMap holding the release. If the ConfigMap already exists, ErrReleaseExists is returned.

func (*ConfigMaps) Delete 

func (cfgmaps *ConfigMaps) Delete(key string) (rls *rspb.Release, err error)

Delete deletes the ConfigMap holding the release named by key.

func (*ConfigMaps) Get 

func (cfgmaps *ConfigMaps) Get(key string) (*rspb.Release, error)

Get fetches the release named by key. The corresponding release is returned or error if not found.

func (*ConfigMaps) List 

func (cfgmaps *ConfigMaps) List(filter func(*rspb.Release) bool) ([]*rspb.Release, error)

List fetches all releases and returns the list releases such that filter(release) == true. An error is returned if the configmap fails to retrieve the releases.

func (*ConfigMaps) Name 

func (cfgmaps *ConfigMaps) Name() string

Name returns the name of the driver.

func (*ConfigMaps) Query 

func (cfgmaps *ConfigMaps) Query(labels map[string]string) ([]*rspb.Release, error)

Query fetches all releases that match the provided map of labels. An error is returned if the configmap fails to retrieve the releases.

func (*ConfigMaps) Update 

func (cfgmaps *ConfigMaps) Update(key string, rls *rspb.Release) error

Update updates the ConfigMap holding the release. If not found the ConfigMap is created to hold the release.

type Creator 

type Creator interface {
	Create(key string, rls *rspb.Release) error
}

Creator is the interface that wraps the Create method.

Create stores the release or returns ErrReleaseExists if an identical release already exists.

type Deletor 

type Deletor interface {
	Delete(key string) (*rspb.Release, error)
}

Deletor is the interface that wraps the Delete method.

Delete deletes the release named by key or returns ErrReleaseNotFound if the release does not exist.

type Driver 

type Driver interface {
	Creator
	Updator
	Deletor
	Queryor
	Name() string
}

Driver is the interface composed of Creator, Updator, Deletor, and Queryor interfaces. It defines the behavior for storing, updating, deleted, and retrieving Helm releases from some underlying storage mechanism, e.g. memory, configmaps.

type Memory 

type Memory struct {
	sync.RWMutex
	// contains filtered or unexported fields
}

Memory is the in-memory storage driver implementation.

func NewMemory 

func NewMemory() *Memory

NewMemory initializes a new memory driver.

func (*Memory) Create 

func (mem *Memory) Create(key string, rls *rspb.Release) error

Create creates a new release or returns ErrReleaseExists.

func (*Memory) Delete 

func (mem *Memory) Delete(key string) (*rspb.Release, error)

Delete deletes a release or returns ErrReleaseNotFound.

func (*Memory) Get 

func (mem *Memory) Get(key string) (*rspb.Release, error)

Get returns the release named by key or returns ErrReleaseNotFound.

func (*Memory) List 

func (mem *Memory) List(filter func(*rspb.Release) bool) ([]*rspb.Release, error)

List returns the list of all releases such that filter(release) == true

func (*Memory) Name 

func (mem *Memory) Name() string

Name returns the name of the driver.

func (*Memory) Query 

func (mem *Memory) Query(keyvals map[string]string) ([]*rspb.Release, error)

Query returns the set of releases that match the provided set of labels

func (*Memory) SetNamespace 

func (mem *Memory) SetNamespace(ns string)

SetNamespace sets a specific namespace in which releases will be accessed. An empty string indicates all namespaces (for the list operation)

func (*Memory) Update 

func (mem *Memory) Update(key string, rls *rspb.Release) error

Update updates a release or returns ErrReleaseNotFound.

type Queryor 

type Queryor interface {
	Get(key string) (*rspb.Release, error)
	List(filter func(*rspb.Release) bool) ([]*rspb.Release, error)
	Query(labels map[string]string) ([]*rspb.Release, error)
}

Queryor is the interface that wraps the Get and List methods.

Get returns the release named by key or returns ErrReleaseNotFound if the release does not exist.

List returns the set of all releases that satisfy the filter predicate.

Query returns the set of all releases that match the provided label set.

type SQL 

type SQL struct {
	Log func(string, ...interface{})
	// contains filtered or unexported fields
}

SQL is the sql storage driver implementation.

func NewSQL 

func NewSQL(connectionString string, logger func(string, ...interface{}), namespace string) (*SQL, error)

NewSQL initializes a new sql driver.

func (*SQL) Create 

func (s *SQL) Create(key string, rls *rspb.Release) error

Create creates a new release.

func (*SQL) Delete 

func (s *SQL) Delete(key string) (*rspb.Release, error)

Delete deletes a release or returns ErrReleaseNotFound.

func (*SQL) Get 

func (s *SQL) Get(key string) (*rspb.Release, error)

Get returns the release named by key.

func (*SQL) List 

func (s *SQL) List(filter func(*rspb.Release) bool) ([]*rspb.Release, error)

List returns the list of all releases such that filter(release) == true

func (*SQL) Name 

func (s *SQL) Name() string

Name returns the name of the driver.

func (*SQL) Query 

func (s *SQL) Query(labels map[string]string) ([]*rspb.Release, error)

Query returns the set of releases that match the provided set of labels.

func (*SQL) Update 

func (s *SQL) Update(key string, rls *rspb.Release) error

Update updates a release.

type SQLReleaseWrapper 

type SQLReleaseWrapper struct {
	// The primary key, made of {release-name}.{release-version}
	Key string `db:"key"`

	// See https://github.com/helm/helm/blob/master/pkg/storage/driver/secrets.go#L236
	Type string `db:"type"`

	// The rspb.Release body, as a base64-encoded string
	Body string `db:"body"`

	// Release "labels" that can be used as filters in the storage.Query(labels map[string]string)
	// we implemented. Note that allowing Helm users to filter against new dimensions will require a
	// new migration to be added, and the Create and/or update functions to be updated accordingly.
	Name       string `db:"name"`
	Namespace  string `db:"namespace"`
	Version    int    `db:"version"`
	Status     string `db:"status"`
	Owner      string `db:"owner"`
	CreatedAt  int    `db:"createdAt"`
	ModifiedAt int    `db:"modifiedAt"`
}

SQLReleaseWrapper describes how Helm releases are stored in an SQL database

type Secrets 

type Secrets struct {
	Log func(string, ...interface{})
	// contains filtered or unexported fields
}

Secrets is a wrapper around an implementation of a kubernetes SecretsInterface.

func NewSecrets 

func NewSecrets(impl corev1.SecretInterface) *Secrets

NewSecrets initializes a new Secrets wrapping an implementation of the kubernetes SecretsInterface.

func (*Secrets) Create 

func (secrets *Secrets) Create(key string, rls *rspb.Release) error

Create creates a new Secret holding the release. If the Secret already exists, ErrReleaseExists is returned.

func (*Secrets) Delete 

func (secrets *Secrets) Delete(key string) (rls *rspb.Release, err error)

Delete deletes the Secret holding the release named by key.

func (*Secrets) Get 

func (secrets *Secrets) Get(key string) (*rspb.Release, error)

Get fetches the release named by key. The corresponding release is returned or error if not found.

func (*Secrets) List 

func (secrets *Secrets) List(filter func(*rspb.Release) bool) ([]*rspb.Release, error)

List fetches all releases and returns the list releases such that filter(release) == true. An error is returned if the secret fails to retrieve the releases.

func (*Secrets) Name 

func (secrets *Secrets) Name() string

Name returns the name of the driver.

func (*Secrets) Query 

func (secrets *Secrets) Query(labels map[string]string) ([]*rspb.Release, error)

Query fetches all releases that match the provided map of labels. An error is returned if the secret fails to retrieve the releases.

func (*Secrets) Update 

func (secrets *Secrets) Update(key string, rls *rspb.Release) error

Update updates the Secret holding the release. If not found the Secret is created to hold the release.

type StorageDriverError 

type StorageDriverError struct {
	ReleaseName string
	Err         error
}

StorageDriverError records an error and the release name that caused it

func (*StorageDriverError) Error 

func (e *StorageDriverError) Error() string

func (*StorageDriverError) Unwrap 

func (e *StorageDriverError) Unwrap() error

type Updator 

type Updator interface {
	Update(key string, rls *rspb.Release) error
}

Updator is the interface that wraps the Update method.

Update updates an existing release or returns ErrReleaseNotFound if the release does not exist.

Source Files

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