queue

README

KubeMQ Bridges Queue Target

KubeMQ Bridges Queue target provides a queue sender for processing sources requests.

Prerequisites

The following are required to run the queue target connector:

• kubemq cluster
• kubemq-bridges deployment

Configuration

Queue target connector configuration properties:

Properties Key	Required	Description	Example
address	yes	kubemq server address (gRPC interface)	kubemq-cluster-a-grpc.kubemq.svc.cluster.local:50000
client_id	no	set client id	"client_id"
auth_token	no	set authentication token	JWT token
channels	no	set array of channels values to send the queue message	"queue.a,queue.b,queue.c"
expiration_seconds	no	set default expiration seconds for each queue message	0 - default, no expiration
delay_seconds	no	set default delay seconds for each queue message	0 - default, no delay
max_receive_count	no	set how many failed queue messages before routes to dead-letter queue	0 - default, no routes to dead-letter queue
dead_letter_queue	no	set dead-letter queue	"dead-letter.queue.a"

Example:

bindings:
  - name:  queue-binding 
    properties: 
      log_level: error
      retry_attempts: 3
      retry_delay_milliseconds: 1000
      retry_max_jitter_milliseconds: 100
      retry_delay_type: "back-off"
      rate_per_second: 100
    sources:
    .....
    targets:
      kind: target.queue # Sources kind
      name: 3-clusters-targets # targets name 
      connections: # Array of connections settings per each target kind
        - address: "kubemq-cluster-a-grpc.kubemq.svc.cluster.local:50000"
          client_id: "cluster-a-queue-connection"
          auth_token: ""
          channels: "queue.a,queue.b,queue.c"
          expiration_seconds: 0
          delay_seconds: 0
          max_receive_count: 3
          dead_letter_queue: "dead-letter.queue.a"
        - address: "kubemq-cluster-b-grpc.kubemq.svc.cluster.local:50000"
          client_id: "cluster-b-queue-connection"
          auth_token: ""
          channels: "queue.a,queue.b,queue.c"
          expiration_seconds: 0
          delay_seconds: 0
          max_receive_count: 3
          dead_letter_queue: "dead-letter.queue.b"
        - address: "kubemq-cluster-c-grpc.kubemq.svc.cluster.local:50000"
          client_id: "cluster-c-queue-connection"
          auth_token: ""
          channels: "queue.a,queue.b,queue.c"
          expiration_seconds: 0
          delay_seconds: 0
          max_receive_count: 3
          dead_letter_queue: "dead-letter.queue.c"

Documentation

Index

• type Client
  • func New() *Client
  • func (c *Client) Do(ctx context.Context, request interface{}) (interface{}, error)
  • func (c *Client) Init(ctx context.Context, connection config.Metadata, bindingName string, ...) error
  • func (c *Client) Stop() error

Types

type Client

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

func New

func New() *Client

func (*Client) Do

func (c *Client) Do(ctx context.Context, request interface{}) (interface{}, error)

func (*Client) Init

func (c *Client) Init(ctx context.Context, connection config.Metadata, bindingName string, log *logger.Logger) error

func (*Client) Stop

func (c *Client) Stop() error