common

package
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 Go to latest Published: Dec 6, 2023 License: Apache-2.0 Imports: 22 Imported by: 0

Documentation

Overview

Package common provides common constants, variables and function used in both controller and node services.

Index

Constants

View Source 
const (
	// KeyAllowRoot key value to check if driver should enable root squashing for nfs volumes
	KeyAllowRoot = "allowRoot"
	// KeyNfsExportPath key value to pass in publish context
	KeyNfsExportPath = "NfsExportPath"
	// KeyHostIP key value to pass in publish context
	KeyHostIP = "HostIP"
	// KeyExportID key value to pass in publish context
	KeyExportID = "ExportID"
	// KeyNatIP key value to pass in publish context
	KeyNatIP = "NatIP"
	// KeyArrayID key value to check in request parameters for array ip
	KeyArrayID = "arrayID"
	// KeyArrayVolumeName key value to check in request parameters for volume name
	KeyArrayVolumeName = "Name"
	// KeyProtocol key value to check in request parameters for volume name
	KeyProtocol = "Protocol"
	// KeyNfsACL key value to specify NFS ACLs for NFS volume
	KeyNfsACL = "nfsAcls"
	// KeyNasName key value to specify NAS server name
	KeyNasName = "nasName"
	// KeyVolumeDescription key value to specify volume description
	KeyVolumeDescription = "csi.dell.com/description"
	// KeyApplianceID key value to specify appliance_id
	KeyApplianceID = "csi.dell.com/appliance_id"
	// KeyProtectionPolicyID key value to specify protection_policy_id
	KeyProtectionPolicyID = "csi.dell.com/protection_policy_id"
	// KeyPerformancePolicyID key value to specify performance_policy_id
	KeyPerformancePolicyID = "csi.dell.com/performance_policy_id"
	// KeyAppType key value to specify app_type
	KeyAppType = "csi.dell.com/app_type"
	// KeyAppTypeOther key value to specify app_type_other
	KeyAppTypeOther = "csi.dell.com/app_type_other"
	// KeyConfigType key value to specify volume config_type
	KeyConfigType = "csi.dell.com/config_type"
	// KeyAccessPolicy key value to specify volume access_policy
	KeyAccessPolicy = "csi.dell.com/access_policy"
	// KeyLockingPolicy key value to specify volume locking_policy
	KeyLockingPolicy = "csi.dell.com/locking_policy"
	// KeyFolderRenamePolicy key value to specify volume folder_rename_policy
	KeyFolderRenamePolicy = "csi.dell.com/folder_rename_policy"
	// KeyIsAsyncMtimeEnabled key value to specify volume is_async_mtime_enabled
	KeyIsAsyncMtimeEnabled = "csi.dell.com/is_async_mtime_enabled"
	// KeyFileEventsPublishingMode key value to specify volume file_events_publishing_mode
	KeyFileEventsPublishingMode = "csi.dell.com/file_events_publishing_mode"
	// KeyHostIoSize key value to specify volume host_io_size
	KeyHostIoSize = "csi.dell.com/host_io_size"
	// KeyVolumeGroupID key value to specify volume_group_id
	KeyVolumeGroupID = "csi.dell.com/volume_group_id"
	// KeyFlrCreateMode key value to specify flr_attributes.flr_create.mode
	KeyFlrCreateMode = "csi.dell.com/flr_attributes.flr_create.mode"
	// KeyFlrDefaultRetention key value to specify flr_attributes.flr_create.default_retention
	KeyFlrDefaultRetention = "csi.dell.com/flr_attributes.flr_create.default_retention"
	// KeyFlrMinRetention key value to specify flr_attributes.flr_create.minimum_retention
	KeyFlrMinRetention = "csi.dell.com/flr_attributes.flr_create.minimum_retention"
	// KeyFlrMaxRetention key value to specify flr_attributes.flr_create.maximum_retention
	KeyFlrMaxRetention = "csi.dell.com/flr_attributes.flr_create.maximum_retention"
	// KeyServiceTag has the service tag associated to an Appliance
	KeyServiceTag = "serviceTag"
	// VerboseName longer description of the driver
	VerboseName = "CSI Driver for Dell EMC PowerStore"
	// FcTransport indicates that FC is chosen as a SCSI transport protocol
	FcTransport TransportType = "FC"
	// ISCSITransport indicates that ISCSI is chosen as a SCSI transport protocol
	ISCSITransport TransportType = "ISCSI"
	// AutoDetectTransport indicates that SCSI transport protocol would be detected automatically
	AutoDetectTransport TransportType = "AUTO"
	// NoneTransport indicates that no SCSI transport protocol needed
	NoneTransport TransportType = "NONE"
	// PublishContextDeviceWWN indicates publish context device wwn
	PublishContextDeviceWWN = "DEVICE_WWN"
	// PublishContextLUNAddress indicates publish context LUN address
	PublishContextLUNAddress = "LUN_ADDRESS"
	// PublishContextISCSIPortalsPrefix indicates publish context iSCSI portals prefix
	PublishContextISCSIPortalsPrefix = "PORTAL"
	// PublishContextISCSITargetsPrefix indicates publish context iSCSI targets prefix
	PublishContextISCSITargetsPrefix = "TARGET"
	// PublishContextNVMETCPPortalsPrefix indicates publish context NVMeTCP portals prefix
	PublishContextNVMETCPPortalsPrefix = "NVMETCPPORTAL"
	// PublishContextNVMETCPTargetsPrefix indicates publish context NVMe targets prefix
	PublishContextNVMETCPTargetsPrefix = "NVMETCPTARGET"
	// PublishContextNVMEFCPortalsPrefix indicates publish context NVMe targets prefix
	PublishContextNVMEFCPortalsPrefix = "NVMEFCPORTAL"
	// PublishContextNVMEFCTargetsPrefix indicates publish context NVMe targets prefix
	PublishContextNVMEFCTargetsPrefix = "NVMEFCTARGET"
	// NVMETCPTransport indicates that NVMe/TCP is chosen as the transport protocol
	NVMETCPTransport TransportType = "NVMETCP"
	// NVMEFCTransport indicates that NVMe/FC is chosen as the transport protocol
	NVMEFCTransport TransportType = "NVMEFC"
	// PublishContextFCWWPNPrefix indicates publish context FC WWPN prefix
	PublishContextFCWWPNPrefix = "FCWWPN"
	// WWNPrefix indicates WWN prefix
	WWNPrefix = "naa."

	// DefaultPodmonAPIPortNumber is the port number in default to expose internal health APIs
	DefaultPodmonAPIPortNumber = "8083"

	// DefaultPodmonPollRate is the default polling frequency to check for array connectivity
	DefaultPodmonPollRate = 60

	// Timeout for making http requests
	Timeout = time.Second * 5

	// ArrayStatus is the endPoint for polling to check array status
	ArrayStatus = "/array-status"
)
View Source 
const (
	// EnvDriverName is the name of the csi driver (provisioner)
	EnvDriverName = "X_CSI_DRIVER_NAME"

	// EnvNodeIDFilePath is the name of the environment variable used to
	// specify the file with the node ID
	EnvNodeIDFilePath = "X_CSI_POWERSTORE_NODE_ID_PATH"

	// EnvKubeNodeName is the name of the environment variable which stores current kubernetes
	// node name
	EnvKubeNodeName = "X_CSI_POWERSTORE_KUBE_NODE_NAME"

	//EnvKubeConfigPath indicates kubernetes configuration path that has to be used by CSI Driver
	EnvKubeConfigPath = "KUBECONFIG"

	// EnvNodeNamePrefix is the name of the environment variable which stores prefix which will be
	// used when registering node on PowerStore array
	EnvNodeNamePrefix = "X_CSI_POWERSTORE_NODE_NAME_PREFIX"

	// EnvMaxVolumesPerNode specifies maximum number of volumes that controller can publish to the node
	EnvMaxVolumesPerNode = "X_CSI_POWERSTORE_MAX_VOLUMES_PER_NODE"

	// EnvNodeChrootPath is the name of the environment variable which store path to chroot where
	// to execute iSCSI commands
	EnvNodeChrootPath = "X_CSI_POWERSTORE_NODE_CHROOT_PATH"

	// EnvCtrlRootPath is the name of the environment variable which store path to directory where
	// the host root is mounted
	EnvCtrlRootPath = "X_CSI_POWERSTORE_CTRL_ROOT_PATH"

	// EnvTmpDir is the name of the environment variable which store path to the folder which will be used
	// for csi-powerstore temporary files
	EnvTmpDir = "X_CSI_POWERSTORE_TMP_DIR" // #nosec G101

	// EnvFCPortsFilterFilePath is the name of the environment variable which store path to the file which
	// provide list of WWPN which should be used by the driver for FC connection on this node
	// example:
	// content of the file:
	//   21:00:00:29:ff:48:9f:6e,21:00:00:29:ff:48:9f:6e
	// If file not exist or empty or in invalid format, then the driver will use all available FC ports
	EnvFCPortsFilterFilePath = "X_CSI_FC_PORTS_FILTER_FILE_PATH"

	// EnvThrottlingRateLimit sets a number of concurrent requests to APi
	EnvThrottlingRateLimit = "X_CSI_POWERSTORE_THROTTLING_RATE_LIMIT"

	// EnvEnableCHAP is the flag which determines if the driver is going
	// to set the CHAP credentials in the ISCSI node database at the time
	// of node plugin boot
	EnvEnableCHAP = "X_CSI_POWERSTORE_ENABLE_CHAP"

	// EnvExternalAccess is the IP of an additional router you wish to add for nfs export
	// Used to provide NFS volumes behind NAT
	EnvExternalAccess = "X_CSI_POWERSTORE_EXTERNAL_ACCESS" // #nosec G101

	// EnvArrayConfigFilePath is filepath to powerstore arrays config file
	EnvArrayConfigFilePath = "X_CSI_POWERSTORE_CONFIG_PATH"

	// EnvConfigParamsFilePath is filepath to powerstore driver params config file
	EnvConfigParamsFilePath = "X_CSI_POWERSTORE_CONFIG_PARAMS_PATH"

	// EnvDebugEnableTracing allow to enable tracing in driver
	EnvDebugEnableTracing = "ENABLE_TRACING"

	// EnvReplicationContextPrefix enables sidecars to read required information from volume context
	EnvReplicationContextPrefix = "X_CSI_REPLICATION_CONTEXT_PREFIX"

	// EnvReplicationPrefix is used as a prefix to find out if replication is enabled
	EnvReplicationPrefix = "X_CSI_REPLICATION_PREFIX" // #nosec G101

	// EnvGOCSIDebug indicates whether to print REQUESTs and RESPONSEs of all CSI method calls(from gocsi)
	EnvGOCSIDebug = "X_CSI_DEBUG"

	// EnvIsHealthMonitorEnabled specifies if health monitor is enabled.
	EnvIsHealthMonitorEnabled = "X_CSI_HEALTH_MONITOR_ENABLED"

	// EnvNfsAcls specifies acls to be set on NFS mount directory
	EnvNfsAcls = "X_CSI_NFS_ACLS"

	// EnvK8sVisibilityAutoRegistration specifies if k8s cluster should be automatically registered to PowerStore Array
	EnvK8sVisibilityAutoRegistration = "X_CSI_K8S_VISIBILITY_AUTO_REGISTRATION"

	// EnvMetadataRetrieverEndpoint specifies the endpoint address for csi-metadata-retriever sidecar
	EnvMetadataRetrieverEndpoint = "CSI_RETRIEVER_ENDPOINT"

	// EnvAllowAutoRoundOffFilesystemSize specifies if auto round off minimum filesystem size is enabled
	EnvAllowAutoRoundOffFilesystemSize = "CSI_AUTO_ROUND_OFF_FILESYSTEM_SIZE"

	//EnvPodmonEnabled indicates that podmon is enabled
	EnvPodmonEnabled = "X_CSI_PODMON_ENABLED"

	//EnvPodmonAPIPORT indicates the port to be used for exposing podmon API health, ToDo: Rename to var EnvPodmonArrayConnectivityAPIPORT
	EnvPodmonAPIPORT = "X_CSI_PODMON_API_PORT"

	//EnvPodmonArrayConnectivityPollRate indicates the polling frequency to check array connectivity
	EnvPodmonArrayConnectivityPollRate = "X_CSI_PODMON_ARRAY_CONNECTIVITY_POLL_RATE"
)

Variables

View Source 
var APIPort string

APIPort port for API calls

View Source 
var Manifest = map[string]string{
	"url":    "https://github.com/dell/csi-powerstore",
	"semver": core.SemVer,
	"commit": core.CommitSha32,
	"formed": core.CommitTime.Format(time.RFC1123),
}

Manifest contains additional information about the driver

View Source 
var Name = "csi-powerstore.dellemc.com"

Name contains default name of the driver, can be overridden

Functions

func Contains 

func Contains(slice []string, element string) bool

Contains return true if element is present in the slice

func ExternalAccessAlreadyAdded 

func ExternalAccessAlreadyAdded(export gopowerstore.NFSExport, externalAccess string) bool

ExternalAccessAlreadyAdded return true if externalAccess is present on ARRAY in any access mode type

func GetFCTargetsInfoFromStorage 

func GetFCTargetsInfoFromStorage(client gopowerstore.Client, volumeApplianceID string) ([]gobrick.FCTargetInfo, error)

GetFCTargetsInfoFromStorage returns list of gobrick compatible FC tragets by querying PowerStore array

func GetIPListFromString 

func GetIPListFromString(input string) []string

GetIPListFromString returns list of ips in string form found in input string A return value of nil indicates no match

func GetIPListWithMaskFromString 

func GetIPListWithMaskFromString(input string) (string, error)

GetIPListWithMaskFromString returns ip and mask in string form found in input string A return value of nil indicates no match

func GetISCSITargetsInfoFromStorage 

func GetISCSITargetsInfoFromStorage(client gopowerstore.Client, volumeApplianceID string) ([]gobrick.ISCSITargetInfo, error)

GetISCSITargetsInfoFromStorage returns list of gobrick compatible iscsi tragets by querying PowerStore array

func GetLogFields 

func GetLogFields(ctx context.Context) log.Fields

GetLogFields extracts log fields from context by using contextLogFieldsKey key

func GetNVMEFCTargetInfoFromStorage 

func GetNVMEFCTargetInfoFromStorage(client gopowerstore.Client, volumeApplianceID string) ([]gobrick.NVMeTargetInfo, error)

GetNVMEFCTargetInfoFromStorage returns a list of gobrick compatible NVMeFC targets by quering Powerstore Array

func GetNfsTopology 

func GetNfsTopology(arrIP string) []*csi.Topology

GetNfsTopology Returns a topology array with only nfs

func HasRequiredTopology 

func HasRequiredTopology(topologies []*csi.Topology, arrIP string, requiredTopology string) bool

HasRequiredTopology Checks if requiredTopology is present in the topology array and is true

func IsK8sMetadataSupported 

func IsK8sMetadataSupported(client gopowerstore.Client) bool

IsK8sMetadataSupported returns info whether Metadata is supported or not

func ParseCIDR 

func ParseCIDR(externalAccessCIDR string) (string, error)

ParseCIDR parses the CIDR address to the valid start IP range with Mask

func RandomString 

func RandomString(len int) string

RandomString returns a random string of specified length. String is generated by using crypto/rand.

func ReachableEndPoint 

func ReachableEndPoint(endpoint string) bool

ReachableEndPoint checks if this endpoint is reachable or not

func RmSockFile 

func RmSockFile(f fs.Interface)

RmSockFile removes socket files that left after previous installation

func SetAPIPort 

func SetAPIPort(ctx context.Context)

SetAPIPort set the port for running server

func SetLogFields 

func SetLogFields(ctx context.Context, fields log.Fields) context.Context

SetLogFields returns modified context with fields inserted as values by using contextLogFieldsKey key

func SetPollingFrequency 

func SetPollingFrequency(ctx context.Context) int64

SetPollingFrequency reads the pollingFrequency from Env, sets default vale if ENV not found

Types

type ArrayConnectivityStatus 

type ArrayConnectivityStatus struct {
	LastSuccess int64 `json:"lastSuccess"` // connectivity status
	LastAttempt int64 `json:"lastAttempt"` // last timestamp attempted to check connectivity
}

ArrayConnectivityStatus Status of the array probe

type CustomLogger 

type CustomLogger struct{}

CustomLogger is logger wrapper that can be passed to gopowerstore, gobrick allowing to logging context fields with each call

func (*CustomLogger) Debug 

func (lg *CustomLogger) Debug(ctx context.Context, format string, args ...interface{})

Debug is a wrapper of logrus Debug method

func (*CustomLogger) Error 

func (lg *CustomLogger) Error(ctx context.Context, format string, args ...interface{})

Error is a wrapper of logrus Error method

func (*CustomLogger) Info 

func (lg *CustomLogger) Info(ctx context.Context, format string, args ...interface{})

Info is a wrapper of logrus Info method

type TransportType 

type TransportType string

TransportType differentiates different SCSI transport protocols (FC, iSCSI, Auto, None)

Source Files

View all Source files

Directories

Path Synopsis
Package fs provides wrappers for os/fs dependent operations.
 Package fs provides wrappers for os/fs dependent operations.

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