gcloud

README

Google Storage blobstore

Configuration

See https://cloud.google.com/docs/authentication/production to understand how is made the authentication against google cloud storage

Nowdays we support three different ways in order to let Temporal know where your google keyfile credentials are located

• Temporal archival deployment.yaml configuration file
• GOOGLE_APPLICATION_CREDENTIALS environment variable
• Google default credentials location

If more than one credentials location is given, then Temporal will resolve the conflicts by the following priority:

GOOGLE_APPLICATION_CREDENTIALS > Temporal archival deployment.yaml > Google default credentials

Be sure that you have created your bucket first, and have enought rights in order to read/write over your bucket.

Gcloud Archival example

Enabling archival is done by using the configuration below. credentialsPath is required but could be empty "" in order to allow a Google default credentials.

archival:
  history:
    state: "enabled"
    enableRead: true
    provider:
      gstorage:
        credentialsPath: "/tmp/keyfile.json"
  visibility:
    state: "enabled"
    enableRead: true
    provider:
      gstorage:
        credentialsPath: "/tmp/keyfile.json"

namespaceDefaults:
  archival:
    history:
      state: "enabled"
      URI: "gs://my-bucket-cad/temporal_archival/development"
    visibility:
      state: "enabled"
      URI: "gs://my-bucket-cad/temporal_archival/visibility"

Visibility query syntax

You can query the visibility store by using the tctl workflow listarchived command

The syntax for the query is based on SQL

Supported column names are

• WorkflowType String
• WorkflowID String
• StartTime Date
• CloseTime Date
• SearchPrecision String - Day, Hour, Minute, Second

One of these fields are required, StartTime or CloseTime and they are mutually exclusive and also SearchPrecision.

Searching for a record will be done in times in the UTC timezone

SearchPrecision specifies what range you want to search for records. If you use SearchPrecision = 'Day' it will search all records starting from 2020-01-21T00:00:00Z to 2020-01-21T59:59:59Z

Limitations

• The only operator supported is =
• Currently It's not possible to guarantee the resulSet order, specially if the pageSize it's fullfilled.

Example

Searches the first 20 records for a given day 2020-01-21

./tctl --ns samples-namespace workflow listarchived -ps="20" -q "StartTime = '2020-01-21T00:00:00Z' AND SearchPrecision='Day'"

Archival query syntax

Once you have a workflowId and a runId you can retrieve your workflow history.

example:

./tctl --ns samples-namespace workflow show -w workflow-id -r runId

Documentation

Overview

Package gcloud is a generated GoMock package.

Index

• Constants
• func NewHistoryArchiver(container *archiver.HistoryBootstrapContainer, config *config.GstorageArchiver) (archiver.HistoryArchiver, error)
• func NewVisibilityArchiver(container *archiver.VisibilityBootstrapContainer, ...) (archiver.VisibilityArchiver, error)
• type MockQueryParser
  • func NewMockQueryParser(ctrl *gomock.Controller) *MockQueryParser
  • func (m *MockQueryParser) EXPECT() *MockQueryParserMockRecorder
  • func (m *MockQueryParser) Parse(query string) (*parsedQuery, error)
• type MockQueryParserMockRecorder
  • func (mr *MockQueryParserMockRecorder) Parse(query interface{}) *gomock.Call
• type QueryParser
  • func NewQueryParser() QueryParser

Constants

const (
	WorkflowID      = "WorkflowId"
	RunID           = "RunId"
	WorkflowType    = "WorkflowType"
	CloseTime       = "CloseTime"
	StartTime       = "StartTime"
	SearchPrecision = "SearchPrecision"
)

All allowed fields for filtering

const (
	PrecisionDay    = "Day"
	PrecisionHour   = "Hour"
	PrecisionMinute = "Minute"
	PrecisionSecond = "Second"
)

Precision specific values

const (
	// URIScheme is the scheme for the gcloud storage implementation
	URIScheme = "gs"
)

Functions

func NewHistoryArchiver

func NewHistoryArchiver(
	container *archiver.HistoryBootstrapContainer,
	config *config.GstorageArchiver,
) (archiver.HistoryArchiver, error)

NewHistoryArchiver creates a new gcloud storage HistoryArchiver

func NewVisibilityArchiver

func NewVisibilityArchiver(container *archiver.VisibilityBootstrapContainer, config *config.GstorageArchiver) (archiver.VisibilityArchiver, error)

NewVisibilityArchiver creates a new archiver.VisibilityArchiver based on filestore

Types

type MockQueryParser

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

MockQueryParser is a mock of QueryParser interface.

func NewMockQueryParser

func NewMockQueryParser(ctrl *gomock.Controller) *MockQueryParser

NewMockQueryParser creates a new mock instance.

func (*MockQueryParser) EXPECT

func (m *MockQueryParser) EXPECT() *MockQueryParserMockRecorder

EXPECT returns an object that allows the caller to indicate expected use.

func (*MockQueryParser) Parse

func (m *MockQueryParser) Parse(query string) (*parsedQuery, error)

Parse mocks base method.

type MockQueryParserMockRecorder

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

MockQueryParserMockRecorder is the mock recorder for MockQueryParser.

func (*MockQueryParserMockRecorder) Parse

func (mr *MockQueryParserMockRecorder) Parse(query interface{}) *gomock.Call

Parse indicates an expected call of Parse.

type QueryParser

type QueryParser interface {
	Parse(query string) (*parsedQuery, error)
}

QueryParser parses a limited SQL where clause into a struct

func NewQueryParser

func NewQueryParser() QueryParser

NewQueryParser creates a new query parser for filestore