datastore

package
v0.0.0-...-3c0cf66 Latest Latest
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 Go to latest Published: Nov 9, 2016 License: Apache-2.0 Imports: 20 Imported by: 0

Documentation

Overview

Package datastore retrieves stores data for the ciao controller. This package caches most data in memory, and uses a sql database as persistent storage.

Index

Constants

This section is empty.

Variables

View Source 
var (
	ErrNoTenant            = errors.New("Tenant not found")
	ErrNoBlockData         = errors.New("Block Device not found")
	ErrNoStorageAttachment = errors.New("No Volume Attached")
)

custom errors

Functions

This section is empty.

Types

type Config 

type Config struct {
	PersistentURI     string
	TransientURI      string
	InitTablesPath    string
	InitWorkloadsPath string
}

Config contains configuration information for the datastore.

type Datastore 

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

Datastore provides context for the datastore package.

func (*Datastore) AddBlockDevice 

func (ds *Datastore) AddBlockDevice(device types.BlockData) error

AddBlockDevice will store information about new BlockData into the datastore.

func (*Datastore) AddCNCIIP 

func (ds *Datastore) AddCNCIIP(cnciMAC string, ip string) error

AddCNCIIP will associate a new IP address with an existing CNCI via the mac address

func (*Datastore) AddInstance 

func (ds *Datastore) AddInstance(instance *types.Instance) error

AddInstance will store a new instance in the datastore. The instance will be updated both in the cache and in the database

func (*Datastore) AddLimit 

func (ds *Datastore) AddLimit(tenantID string, resourceID int, limit int) error

AddLimit allows the caller to store a limt for a specific resource for a tenant.

func (*Datastore) AddTenant 

func (ds *Datastore) AddTenant(id string) (*types.Tenant, error)

AddTenant stores information about a tenant into the datastore. it creates a MAC address for the tenant network and makes sure that this new tenant is cached.

func (*Datastore) AddTenantCNCI 

func (ds *Datastore) AddTenantCNCI(tenantID string, instanceID string, mac string) error

AddTenantCNCI will associate a new CNCI instance with a specific tenant. The instanceID of the new CNCI instance and the MAC address of the new instance are stored in the sql database and updated in the cache.

func (*Datastore) AddTenantChan 

func (ds *Datastore) AddTenantChan(c chan bool, tenantID string)

AddTenantChan allows a caller to pass in a channel for CNCI Launch status. When a CNCI has been added to the datastore and a channel exists, success will be indicated on the channel. If a CNCI failure occurred and a channel exists, failure will be indicated on the channel.

func (*Datastore) AllocateTenantIP 

func (ds *Datastore) AllocateTenantIP(tenantID string) (net.IP, error)

AllocateTenantIP will find a free IP address within a tenant network. For now we make each tenant have unique subnets even though it isn't actually needed because of a docker issue.

func (*Datastore) AttachVolumeFailure 

func (ds *Datastore) AttachVolumeFailure(instanceID string, volumeID string, reason payloads.AttachVolumeFailureReason)

AttachVolumeFailure will clean up after a failure to attach a volume. The volume state will be changed back to available, and an error message will be logged.

func (*Datastore) ClearLog 

func (ds *Datastore) ClearLog() error

ClearLog will remove all the event entries from the event log

func (*Datastore) CreateStorageAttachment 

func (ds *Datastore) CreateStorageAttachment(instanceID string, blockID string, ephemeral bool) (types.StorageAttachment, error)

CreateStorageAttachment will associate an instance with a block device in the datastore

func (*Datastore) DeleteBlockDevice 

func (ds *Datastore) DeleteBlockDevice(ID string) error

DeleteBlockDevice will delete a volume from the datastore. It also deletes it from the tenant's list of devices.

func (*Datastore) DeleteInstance 

func (ds *Datastore) DeleteInstance(instanceID string) error

DeleteInstance removes an instance from the datastore.

func (*Datastore) DeleteNode 

func (ds *Datastore) DeleteNode(nodeID string) error

DeleteNode removes a node from the node cache.

func (*Datastore) DeleteStorageAttachment 

func (ds *Datastore) DeleteStorageAttachment(ID string) error

DeleteStorageAttachment will delete the attachment with the associated ID from the datastore.

func (*Datastore) DetachVolumeFailure 

func (ds *Datastore) DetachVolumeFailure(instanceID string, volumeID string, reason payloads.DetachVolumeFailureReason)

DetachVolumeFailure will clean up after a failure to detach a volume. The volume state will be changed back to available, and an error message will be logged.

func (*Datastore) Exit 

func (ds *Datastore) Exit()

Exit will disconnect the backing database.

func (*Datastore) GetAllInstances 

func (ds *Datastore) GetAllInstances() ([]*types.Instance, error)

GetAllInstances retrieves all instances out of the datastore.

func (*Datastore) GetAllInstancesByNode 

func (ds *Datastore) GetAllInstancesByNode(nodeID string) ([]*types.Instance, error)

GetAllInstancesByNode will retrieve all the instances running on a specific compute Node.

func (*Datastore) GetAllInstancesFromTenant 

func (ds *Datastore) GetAllInstancesFromTenant(tenantID string) ([]*types.Instance, error)

GetAllInstancesFromTenant will retrieve all instances belonging to a specific tenant

func (*Datastore) GetAllTenants 

func (ds *Datastore) GetAllTenants() ([]*types.Tenant, error)

GetAllTenants returns all the tenants from the datastore.

func (*Datastore) GetBatchFrameStatistics 

func (ds *Datastore) GetBatchFrameStatistics(label string) ([]types.BatchFrameStat, error)

GetBatchFrameStatistics will show individual trace data per instance for a batch of trace data. The batch is identified by the label.

func (*Datastore) GetBatchFrameSummary 

func (ds *Datastore) GetBatchFrameSummary() ([]types.BatchFrameSummary, error)

GetBatchFrameSummary will retieve the count of traces we have for a specific label

func (*Datastore) GetBlockDevice 

func (ds *Datastore) GetBlockDevice(ID string) (types.BlockData, error)

GetBlockDevice will return information about a block device from the datastore.

func (*Datastore) GetBlockDevices 

func (ds *Datastore) GetBlockDevices(tenant string) ([]types.BlockData, error)

GetBlockDevices will return all the BlockDevices associated with a tenant.

func (*Datastore) GetCNCIWorkloadID 

func (ds *Datastore) GetCNCIWorkloadID() (string, error)

GetCNCIWorkloadID returns the UUID of the workload template for the CNCI workload

func (*Datastore) GetEventLog 

func (ds *Datastore) GetEventLog() ([]*types.LogEntry, error)

GetEventLog retrieves all the log entries stored in the datastore.

func (*Datastore) GetInstance 

func (ds *Datastore) GetInstance(id string) (*types.Instance, error)

GetInstance retrieves an instance out of the datastore.

func (*Datastore) GetInstanceLastStats 

func (ds *Datastore) GetInstanceLastStats(nodeID string) types.CiaoServersStats

GetInstanceLastStats retrieves the last instances stats received for this node. It returns it in a format suitable for the compute API.

func (*Datastore) GetNodeLastStats 

func (ds *Datastore) GetNodeLastStats() types.CiaoComputeNodes

GetNodeLastStats retrieves the last nodes stats received for this node. It returns it in a format suitable for the compute API.

func (*Datastore) GetNodeSummary 

func (ds *Datastore) GetNodeSummary() ([]*types.NodeSummary, error)

GetNodeSummary provides a summary the state and count of instances running per node.

func (*Datastore) GetStorageAttachments 

func (ds *Datastore) GetStorageAttachments(instanceID string) ([]types.StorageAttachment, error)

GetStorageAttachments returns a list of volumes associated with this instance.

func (*Datastore) GetTenant 

func (ds *Datastore) GetTenant(id string) (*types.Tenant, error)

GetTenant returns details about a tenant referenced by the uuid

func (*Datastore) GetTenantCNCISummary 

func (ds *Datastore) GetTenantCNCISummary(cnci string) ([]types.TenantCNCI, error)

GetTenantCNCISummary retrieves information about a given CNCI id, or all CNCIs If the cnci string is the null string, then this function will retrieve all tenants. If cnci is not null, it will only provide information about a specific cnci.

func (*Datastore) GetTenantUsage 

func (ds *Datastore) GetTenantUsage(tenantID string, start time.Time, end time.Time) ([]types.CiaoUsage, error)

GetTenantUsage provides statistics on actual resource usage. Usage is provided between a specified time period.

func (*Datastore) GetVolumeAttachments 

func (ds *Datastore) GetVolumeAttachments(volume string) ([]types.StorageAttachment, error)

GetVolumeAttachments will return a list of attachments associated with this volume ID.

func (*Datastore) GetWorkload 

func (ds *Datastore) GetWorkload(id string) (*types.Workload, error)

GetWorkload returns details about a specific workload referenced by id

func (*Datastore) GetWorkloads 

func (ds *Datastore) GetWorkloads() ([]*types.Workload, error)

GetWorkloads returns all known tenant workloads

func (*Datastore) HandleStats 

func (ds *Datastore) HandleStats(stat payloads.Stat) error

HandleStats makes sure that the data from the stat payload is stored.

func (*Datastore) HandleTraceReport 

func (ds *Datastore) HandleTraceReport(trace payloads.Trace) error

HandleTraceReport stores the provided trace data in the datastore.

func (*Datastore) Init 

func (ds *Datastore) Init(config Config) error

Init initializes the private data for the Datastore object. The sql tables are populated with initial data from csv files if this is the first time the database has been created. The datastore caches are also filled.

func (*Datastore) ReleaseTenantIP 

func (ds *Datastore) ReleaseTenantIP(tenantID string, ip string) error

ReleaseTenantIP will return an IP address previously allocated to the pool. Once a tenant IP address is released, it can be reassigned to another instance.

func (*Datastore) RestartFailure 

func (ds *Datastore) RestartFailure(instanceID string, reason payloads.RestartFailureReason) error

RestartFailure logs a RestartFailure in the datastore

func (*Datastore) StartFailure 

func (ds *Datastore) StartFailure(instanceID string, reason payloads.StartFailureReason) error

StartFailure will clean up after a failure to start an instance. If an instance was a CNCI, this function will remove the CNCI instance for this tenant. If the instance was a normal tenant instance, the IP address will be released and the instance will be deleted from the datastore.

func (*Datastore) StopFailure 

func (ds *Datastore) StopFailure(instanceID string, reason payloads.StopFailureReason) error

StopFailure logs a StopFailure in the datastore

func (*Datastore) UpdateBlockDevice 

func (ds *Datastore) UpdateBlockDevice(data types.BlockData) error

UpdateBlockDevice will replace existing information about a block device in the datastore.

Source Files

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