crossplane

package
v0.2.0 Latest Latest
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 Go to latest Published: Mar 31, 2021 License: BSD-3-Clause Imports: 30 Imported by: 2

Documentation

Index

Constants

View Source 
const (
	// SynToolsBase is the base domain
	SynToolsBase = "service.syn.tools"

	// DescriptionAnnotation of the instance
	DescriptionAnnotation = SynToolsBase + "/description"
	// MetadataAnnotation of the instance
	MetadataAnnotation = SynToolsBase + "/metadata"
	// DeletionTimestampAnnotation marks when an object got deleted
	DeletionTimestampAnnotation = SynToolsBase + "/deletionTimestamp"
	// TagsAnnotation of the instance
	TagsAnnotation = SynToolsBase + "/tags"
)
View Source 
const (
	// ServiceNameLabel of the instance
	ServiceNameLabel = SynToolsBase + "/name"
	// ServiceIDLabel of the instance
	ServiceIDLabel = SynToolsBase + "/id"
	// PlanNameLabel of the instance
	PlanNameLabel = SynToolsBase + "/plan"
	// ClusterLabel name of the cluster this instance is deployed to
	ClusterLabel = SynToolsBase + "/cluster"
	// SLALabel SLA level for this instance
	SLALabel = SynToolsBase + "/sla"
	// InstanceIDLabel of the instance
	InstanceIDLabel = SynToolsBase + "/instance"
	// ParentIDLabel of the instance
	ParentIDLabel = SynToolsBase + "/parent"
	// BindableLabel of the instance
	BindableLabel = SynToolsBase + "/bindable"
	// UpdatableLabel of the instance
	UpdatableLabel = SynToolsBase + "/updatable"
	// DeletedLabel marks an object as deleted to clean up
	DeletedLabel = SynToolsBase + "/deleted"

	// SLAPremium represents the string for the premium SLA
	SLAPremium = "premium"
	// SLAStandard represents the string for the standard SLA
	SLAStandard = "standard"
)

Variables

View Source 
var ErrInstanceNotReady = errors.New("instance not ready")

ErrInstanceNotReady is returned if credentials are fetched for an instance which is still provisioning.

Functions

func Register 

func Register(scheme *runtime.Scheme) error

Register configures the given runtime.Scheme with all required resources

Types

type Credentials 

type Credentials map[string]interface{}

Credentials contain connection information for accessing a service.

type Crossplane 

type Crossplane struct {
	// contains filtered or unexported fields
}

Crossplane client to access crossplane resources.

func New 

func New(serviceIDs []string, namespace string, config *rest.Config) (*Crossplane, error)

New instantiates a crossplane client.

func (Crossplane) CreateInstance 

func (cp Crossplane) CreateInstance(rctx *reqcontext.ReqContext, id string, plan *Plan, params map[string]interface{}) error

CreateInstance sets a new composite with assigned plan and params up.

func (*Crossplane) DeleteInstance 

func (cp *Crossplane) DeleteInstance(rctx *reqcontext.ReqContext, instanceName string, plan *Plan) error

DeleteInstance deletes a service instance

func (Crossplane) FindInstanceWithoutPlan 

func (cp Crossplane) FindInstanceWithoutPlan(rctx *reqcontext.ReqContext, id string) (inst *Instance, p *Plan, ok bool, err error)

FindInstanceWithoutPlan is used for retrieving an instance when the plan is unknown. It needs to iterate through all plans and fetch the instance using the supplied GVK. There's probably an optimization to be done here, as this seems fairly shitty, but for now it works.

func (*Crossplane) GetConnectionDetails added in v0.2.0 

func (cp *Crossplane) GetConnectionDetails(ctx context.Context, instance *composite.Unstructured) (*corev1.Secret, error)

GetConnectionDetails returns the connection details of an instance

func (Crossplane) Instance 

func (cp Crossplane) Instance(rctx *reqcontext.ReqContext, id string, plan *Plan) (inst *Instance, ok bool, err error)

Instance retrieves an instance based on the given instanceID and plan. Besides the instanceID, the planName has to match. The `ok` parameter is *only* set to true if no error is returned and the instance already exists. Normal errors are returned as-is. FIXME(mw): is it correct to return `false, errInstanceNotFound` if PlanNameLabel does not match? And how should that be handled? 

Ported from PoC code as-is, and errInstanceNotFound is handled as instance really not found, however as the ID exists, how
can we speak about having no instance with that name? It's a UUID after all.

func (Crossplane) Plan 

func (cp Crossplane) Plan(rctx *reqcontext.ReqContext, planID string) (*Plan, error)

Plan retrieves a single plan as deployed using a Composition. The planID corresponds to the Compositions name.

func (Crossplane) Plans 

func (cp Crossplane) Plans(rctx *reqcontext.ReqContext, serviceIDs []string) ([]*Plan, error)

Plans retrieves all plans per passed service. Plans are deployed Compositions with the ServiceIDLabel assigned. The plans are ordered by name.

func (Crossplane) ServiceXRDs 

func (cp Crossplane) ServiceXRDs(rctx *reqcontext.ReqContext) ([]*ServiceXRD, error)

ServiceXRDs retrieves all defined services (defined by XRDs with the ServiceIDLabel) on the cluster.

func (*Crossplane) UpdateInstance 

func (cp *Crossplane) UpdateInstance(rctx *reqcontext.ReqContext, instance *Instance, plan *Plan) error

UpdateInstance updates `instance` on k8s.

type Endpoint 

type Endpoint struct {
	Host     string
	Port     int32
	Protocol string
}

Endpoint describes available service endpoints.

type Instance 

type Instance struct {
	Composite *composite.Unstructured
	Labels    *Labels
}

Instance is a wrapper around a specific instance (a composite).

func (Instance) ID 

func (i Instance) ID() string

ID returns the instance name.

func (Instance) Parameters 

func (i Instance) Parameters() map[string]interface{}

Parameters returns the specified parameters if available.

func (Instance) ParentReference added in v0.2.0 

func (i Instance) ParentReference() (string, error)

ParentReference returns the parent reference

func (Instance) Ready 

func (i Instance) Ready() bool

Ready returns if the instance contains a ready = true status.

type Labels 

type Labels struct {
	ServiceName ServiceName
	ServiceID   string
	PlanName    string
	PlanSize    string
	InstanceID  string
	ParentID    string
	SLA         string
	Bindable    bool
	Updatable   bool
	Deleted     bool
}

Labels provides uniform access to parsed labels.

type MariadbDatabaseServiceBinder 

type MariadbDatabaseServiceBinder struct {
	// contains filtered or unexported fields
}

MariadbDatabaseServiceBinder defines a specific Mariadb service with enough data to retrieve connection credentials.

func NewMariadbDatabaseServiceBinder 

func NewMariadbDatabaseServiceBinder(c *Crossplane, instance *Instance, logger lager.Logger) *MariadbDatabaseServiceBinder

NewMariadbDatabaseServiceBinder instantiates a Mariadb service instance based on the given CompositeMariadbInstance.

func (MariadbDatabaseServiceBinder) Bind 

func (msb MariadbDatabaseServiceBinder) Bind(ctx context.Context, bindingID string) (Credentials, error)

Bind creates a MariaDB binding composite.

func (MariadbDatabaseServiceBinder) Deprovisionable 

func (msb MariadbDatabaseServiceBinder) Deprovisionable(_ context.Context) error

Deprovisionable always returns nil for MariadbDatabase instances.

func (MariadbDatabaseServiceBinder) GetBinding 

func (msb MariadbDatabaseServiceBinder) GetBinding(ctx context.Context, bindingID string) (Credentials, error)

GetBinding returns credentials for MariaDB

func (MariadbDatabaseServiceBinder) Unbind 

func (msb MariadbDatabaseServiceBinder) Unbind(ctx context.Context, bindingID string) error

Unbind deletes the created User and Grant.

func (MariadbDatabaseServiceBinder) ValidateProvisionParams 

func (msb MariadbDatabaseServiceBinder) ValidateProvisionParams(ctx context.Context, params json.RawMessage) (map[string]interface{}, error)

ValidateProvisionParams ensures the passed parent reference is an existing mariadb instance.

type MariadbServiceBinder 

type MariadbServiceBinder struct {
	// contains filtered or unexported fields
}

MariadbServiceBinder defines a specific Mariadb service with enough data to retrieve connection credentials.

func NewMariadbServiceBinder 

func NewMariadbServiceBinder(c *Crossplane, instance *Instance, logger lager.Logger) *MariadbServiceBinder

NewMariadbServiceBinder instantiates a Mariadb service instance based on the given CompositeMariadbInstance.

func (MariadbServiceBinder) Bind 

func (msb MariadbServiceBinder) Bind(_ context.Context, _ string) (Credentials, error)

Bind on a MariaDB instance is not supported - only a database referencing an instance can be bound.

func (MariadbServiceBinder) Deprovisionable 

func (msb MariadbServiceBinder) Deprovisionable(ctx context.Context) error

Deprovisionable checks if no DBs exist for this instance anymore.

func (MariadbServiceBinder) GetBinding 

func (msb MariadbServiceBinder) GetBinding(_ context.Context, _ string) (Credentials, error)

GetBinding is not implemented.

func (MariadbServiceBinder) Unbind 

func (msb MariadbServiceBinder) Unbind(_ context.Context, _ string) error

Unbind on a MariaDB instance is not supported - only a database referencing an instance can be bound.

type Plan 

type Plan struct {
	Composition *xv1.Composition
	Labels      *Labels
	Metadata    string
	Tags        string
	Description string
}

Plan is a wrapper around a Composition representing a service plan.

func (Plan) GVK 

func (p Plan) GVK() (schema.GroupVersionKind, error)

GVK returns the group, version, kind type for the composite type ref.

type ProvisionValidater 

type ProvisionValidater interface {
	// ValidateProvisionParams can be used to check the params for validity. If valid, it should return all needed parameters
	// for the composition.
	ValidateProvisionParams(ctx context.Context, params json.RawMessage) (map[string]interface{}, error)
}

ProvisionValidater enables service implementations to check required additional params.

type RedisServiceBinder 

type RedisServiceBinder struct {
	// contains filtered or unexported fields
}

RedisServiceBinder defines a specific redis service with enough data to retrieve connection credentials.

func NewRedisServiceBinder 

func NewRedisServiceBinder(c *Crossplane, instance *Instance, logger lager.Logger) *RedisServiceBinder

NewRedisServiceBinder instantiates a redis service instance based on the given CompositeRedisInstance.

func (RedisServiceBinder) Bind 

func (rsb RedisServiceBinder) Bind(ctx context.Context, bindingID string) (Credentials, error)

Bind retrieves the necessary external IP, password and ports.

func (RedisServiceBinder) Deprovisionable 

func (rsb RedisServiceBinder) Deprovisionable(ctx context.Context) error

Deprovisionable returns always nil for redis instances.

func (RedisServiceBinder) GetBinding 

func (rsb RedisServiceBinder) GetBinding(ctx context.Context, bindingID string) (Credentials, error)

GetBinding always returns the same credentials for Redis

func (RedisServiceBinder) Unbind 

func (rsb RedisServiceBinder) Unbind(_ context.Context, _ string) error

Unbind does nothing for redis bindings.

type ServiceBinder 

type ServiceBinder interface {
	Bind(ctx context.Context, bindingID string) (Credentials, error)
	Unbind(ctx context.Context, bindingID string) error
	Deprovisionable(ctx context.Context) error
	GetBinding(ctx context.Context, bindingID string) (Credentials, error)
}

ServiceBinder is an interface for service specific implementation for binding, retrieving credentials, etc.

func ServiceBinderFactory 

func ServiceBinderFactory(c *Crossplane, serviceName ServiceName, instance *Instance, logger lager.Logger) (ServiceBinder, error)

ServiceBinderFactory reads the composite's labels service name and instantiates an appropriate ServiceBinder. FIXME(mw): determine fate of this. We might not need differentiation anymore, once provider-helm is upgraded.

type ServiceName 

type ServiceName string

ServiceName contains all defined service names to handle specific implementations. 

var (
	RedisService           ServiceName = "redis-k8s"
	MariaDBService         ServiceName = "mariadb-k8s"
	MariaDBDatabaseService ServiceName = "mariadb-k8s-database"
)

Defined service names

func (ServiceName) IsValid 

func (s ServiceName) IsValid() bool

IsValid returns true if the ServiceName is one of the defined ones.

type ServiceXRD 

type ServiceXRD struct {
	XRD         xv1.CompositeResourceDefinition
	Labels      *Labels
	Metadata    string
	Tags        string
	Description string
}

ServiceXRD is a wrapper around a CompositeResourceDefinition (XRD) which represents a service.

Source Files

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