Huawei RealtimeTrigger

Huawei RealtimeTrigger
Certified
Trigger a flow for each message on a Huawei DMS for RocketMQ topic

Registers a push listener on the configured topic and fires one Kestra execution per message. The consumer is cleanly shut down when kill() or stop() is called. For batched interval-based consumption use Trigger.

yaml
type: io.kestra.plugin.huawei.dms.rocketmq.RealtimeTrigger

Examples

yaml
id: dms_rocketmq_realtime_trigger
namespace: company.team

tasks:
  - id: log
    type: io.kestra.plugin.core.log.Log
    message: "{{ trigger.body }}"

triggers:
  - id: realtime
    type: io.kestra.plugin.huawei.dms.rocketmq.RealtimeTrigger
    accessKeyId: "{{ secret('HUAWEI_AK') }}"
    secretAccessKey: "{{ secret('HUAWEI_SK') }}"
    nameServerAddr: "dms-instance-id.rocketmq.eu-west-101.myhuaweicloud.com:8100"
    topic: my-topic
    groupId: kestra-realtime-group

Properties

groupId *string

Consumer or producer group ID

Consumer group name for Consume/Trigger tasks; producer group name for Publish tasks.

nameServerAddr *string

Name server address

Address of the RocketMQ name server, e.g. dms-host: 8100. For DMS for RocketMQ, copy the name server address from the instance detail page in the Huawei Cloud console.

topic *string

Topic to publish to or consume from

accessKeyId string

Access Key (AK) used to authenticate with Huawei Cloud

Huawei Cloud access key used together with secretAccessKey to sign API requests. Required for AK/SK-based authentication; not required when providing a pre-obtained securityToken. Sensitive — always provide via {{ secret('NAME') }}.

allowConcurrent boolean

Defaultfalse

Specifies whether a trigger is allowed to start a new execution even if a previous run is still in progress.

domainId string

Huawei Cloud Account Domain ID

Identifies the Huawei Cloud account (domain). Required when authenticating against global services such as IAM, or when requesting a domain-scoped IAM token.

instanceId string

DMS instance ID

Huawei Cloud DMS for RocketMQ instance ID. Required when the instance uses instance isolation. Leave empty for shared DMS instances.

projectId string

Huawei Cloud Project ID

Identifies the region-scoped project against which most regional services authenticate. Mutually exclusive with domainId for global services such as IAM.

region string

Huawei Cloud region

Region identifier such as eu-west-101, ap-southeast-1, or cn-north-4.

secretAccessKey string

Secret Key (SK) used to authenticate with Huawei Cloud

Huawei Cloud secret key paired with accessKeyId. Required for AK/SK-based authentication. Sensitive — always provide via {{ secret('NAME') }}.

securityToken string

Pre-obtained Huawei Cloud IAM token used as bearer credential for downstream API calls

When set, downstream Huawei tasks send this value in the X-Auth-Token header instead of signing requests with AK/SK. Sensitive.

serdeType string

DefaultSTRING

Possible Values

STRINGJSON

Message body serializer/deserializer

STRING (default) or JSON.

stopAfter array

SubTypestring

Possible Values

CREATEDSUBMITTEDRUNNINGPAUSEDRESTARTEDKILLINGSUCCESSWARNINGFAILEDKILLEDCANCELLEDQUEUEDRETRYINGRETRIEDSKIPPEDBREAKPOINTRESUBMITTED

List of execution states after which a trigger should be stopped (a.k.a. disabled).

tags string

Default*

Tag filter expression

Server-side filter applied by the broker. Use * (default) to receive all tags, or a specific tag to filter messages.

temporaryCredentials string

Inline IAM credential exchange

When set, the connection layer calls the Huawei IAM STS API once per task execution and uses the returned temporary AK/SK + security token instead of the static accessKeyId and secretAccessKey properties.

Set it on each task that should exchange credentials, alongside the task's other connection properties:

temporaryCredentials: 
  authMethod: PASSWORD
  username: my-iam-user
  password: "{{ secret('HUAWEI_IAM_PASSWORD') }}"
  domainName: my-account-domain
  durationSeconds: 3600

**Long-running tasks: ** the exchange runs once at execution start. For RealtimeTrigger or long-running Consume tasks that outlive durationSeconds, credentials will expire mid-run. Use long-lived AK/SK properties or refresh externally in that case.

Definitions

io.kestra.plugin.huawei.TemporaryCredentialsConfig

authMethodstring

DefaultPASSWORD

Possible Values

PASSWORDTOKEN

Authentication method

Controls which credentials are used to obtain the session token before exchanging for temporary STS credentials.

PASSWORD (default): provide username, password, and domainName.
TOKEN: provide an existing iamToken (X-Auth-Token).

domainNamestring

Account domain name (PASSWORD method only)

The Huawei Cloud account name (domain name) that owns the IAM user. Required when authMethod is PASSWORD. Visible in the Huawei Cloud console under My Credentials → Domain Name.

durationSecondsintegerstring

Default900

Lifetime of the temporary credentials in seconds

How long the returned temporary AK/SK/security-token should remain valid. Huawei Cloud accepts values between 900 (15 minutes) and 86400 (24 hours). Defaults to 900 seconds.

endpointSuffixstring

Defaultmyhuaweicloud.com

Huawei Cloud IAM endpoint suffix

Domain suffix used to build the IAM endpoint URL when no explicit endpoint override is set. Defaults to myhuaweicloud.com. Set to myhuaweicloud.eu for the European sovereign cloud (region eu-west-101 / EU-Dublin).

iamTokenstring

IAM token to exchange (TOKEN method only)

An existing Huawei Cloud X-Auth-Token to exchange for temporary STS credentials. Required when authMethod is TOKEN. Sensitive — always provide via {{ secret('NAME') }}.

passwordstring

IAM password (PASSWORD method only)

Password for the IAM user identified by username. Required when authMethod is PASSWORD. Sensitive — always provide via {{ secret('NAME') }}.

projectNamestring

Project name for project-scoped tokens (PASSWORD method only)

Overrides the project name used for scope=PROJECT token requests. Defaults to the task's region value when omitted, which is correct for most regions.

scopestring

DefaultPROJECT

Possible Values

PROJECTDOMAIN

Token scope (PASSWORD method only)

Scope of the session token obtained during password authentication.

PROJECT (default): token is scoped to the project matching projectName (or the task's region when projectName is omitted). Use for most downstream tasks.
DOMAIN: token is scoped to the domain.

usernamestring

IAM username (PASSWORD method only)

Huawei Cloud IAM username. Required when authMethod is PASSWORD.

when string

Defaulttrue

A condition that determines whether the trigger should run.

A Pebble expression evaluated at trigger time. The trigger fires only when the expression evaluates to a truthy value (true, a non-empty string, a non-zero number). Use this to gate trigger execution on dynamic runtime values such as execution labels, flow variables, or environment conditions.

Outputs

body object

Message body, deserialized according to serdeType

bornTimestamp integer

Timestamp (milliseconds since epoch) when the message was created on the producer side

keys string

Message keys (space-separated on the wire)

messageId string

Unique message ID assigned by the RocketMQ broker

tags string

Message tags used for server-side filtering

topic string