Trigger

yaml

type: "io.kestra.plugin.aws.s3.Trigger"

Wait for files on S3 bucket.

This trigger will poll every interval s3 bucket. You can search for all files in a bucket or directory in from or you can filter the files with a regExp. The detection is atomic, internally we do a list and interact only with files listed. Once a file is detected, we download the file on internal storage and processed with declared action in order to move or delete the files from the bucket (to avoid double detection on new poll).

Examples

Wait for a list of files on a s3 bucket and iterate through the files.

yaml

id: s3_listen
namespace: company.team

tasks:
  - id: each
    type: io.kestra.plugin.core.flow.EachSequential
    tasks:
      - id: return
        type: io.kestra.plugin.core.debug.Return
        format: "{{ taskrun.value }}"
    value: "{{ trigger.objects | jq('.[].uri') }}"

triggers:
  - id: watch
    type: io.kestra.plugin.aws.s3.Trigger
    interval: "PT5M"
    accessKeyId: "<access-key>"
    secretKeyId: "<secret-key>"
    region: "eu-central-1"
    bucket: "my-bucket"
    prefix: "sub-dir"
    action: MOVE
    moveTo:
      key: archive
      bucket: "new-bucket"

Wait for a list of files on a s3 bucket and iterate through the files. Delete files manually after processing to prevent infinite triggering.

yaml

    id: s3_listen
    namespace: company.team

    tasks:
      - id: each
        type: io.kestra.plugin.core.flow.EachSequential
        tasks:
          - id: return
            type: io.kestra.plugin.core.debug.Return
            format: "{{ taskrun.value }}"

          - id: delete
            type: io.kestra.plugin.aws.s3.Delete
            accessKeyId: "<access-key>"
            secretKeyId: "<secret-key>"
            region: "eu-central-1"
            bucket: "my-bucket"
            key: "{{ taskrun.value }}"
        value: "{{ trigger.objects | jq('.[].key') }}"

    triggers:
      - id: watch
        type: io.kestra.plugin.aws.s3.Trigger
        interval: "PT5M"
        accessKeyId: "<access-key>"
        secretKeyId: "<secret-key>"
        region: "eu-central-1"
        bucket: "my-bucket"
        prefix: "sub-dir"
        action: NONE

Properties

`action`

Type: string
Dynamic: ✔️
Required: ✔️
Possible Values:
- MOVE
- DELETE
- NONE

The action to perform on the retrieved files. If using 'NONE' make sure to handle the files inside your flow to avoid infinite triggering.

`bucket`

Type: string
Dynamic: ✔️
Required: ✔️

The S3 bucket where to download the file.

`accessKeyId`

Type: string
Dynamic: ✔️
Required: ❌

Access Key Id in order to connect to AWS.

If no credentials are defined, we will use the default credentials provider chain to fetch credentials.

`conditions`

Type: array
SubType: Condition
Dynamic: ❌
Required: ❌

List of conditions in order to limit the flow trigger.

`delimiter`

Type: string
Dynamic: ✔️
Required: ❌

A delimiter is a character you use to group keys.

`encodingType`

Type: string
Dynamic: ✔️
Required: ❌

The EncodingType property for this object.

`endpointOverride`

Type: string
Dynamic: ✔️
Required: ❌

The endpoint with which the SDK should communicate.

This property allows you to use a different S3 compatible storage backend.

`expectedBucketOwner`

Type: string
Dynamic: ✔️
Required: ❌

The account ID of the expected bucket owner.

If the bucket is owned by a different account, the request fails with the HTTP status code 403 Forbidden (access denied).

`filter`

Type: string
Dynamic: ❌
Required: ❌
Default: BOTH
Possible Values:
- FILES
- DIRECTORY
- BOTH

The type of objects to filter: files, directory, or both.

`interval`

Type: string
Dynamic: ❌
Required: ❌
Default: 60.000000000
Format: duration

Interval between polling.

The interval between 2 different polls of schedule, this can avoid to overload the remote system with too many calls. For most of the triggers that depend on external systems, a minimal interval must be at least PT30S. See ISO_8601 Durations for more information of available interval values.

`marker`

Type: string
Dynamic: ✔️
Required: ❌

Marker is where you want Amazon S3 to start listing from.

Amazon S3 starts listing after this specified key. Marker can be any key in the bucket.

`maxKeys`

Type: integer
Dynamic: ✔️
Required: ❌
Default: 1000

Sets the maximum number of keys returned in the response.

By default, the action returns up to 1,000 key names. The response might contain fewer keys but will never contain more.

`moveTo`

Type: Copy-CopyObject
Dynamic: ✔️
Required: ❌

The destination bucket and key for MOVE action.

`prefix`

Type: string
Dynamic: ✔️
Required: ❌

Limits the response to keys that begin with the specified prefix.

`regexp`

Type: string
Dynamic: ✔️
Required: ❌

A regexp to filter on full key.

ex: regExp: .* to match all files regExp: .*2020-01-0.\\.csv to match files between 01 and 09 of january ending with .csv

`region`

Type: string
Dynamic: ✔️
Required: ❌

AWS region with which the SDK should communicate.

`requestPayer`

Type: string
Dynamic: ✔️
Required: ❌

Sets the value of the RequestPayer property for this object.

`secretKeyId`

Type: string
Dynamic: ✔️
Required: ❌

Secret Key Id in order to connect to AWS.

If no credentials are defined, we will use the default credentials provider chain to fetch credentials.

`sessionToken`

Type: string
Dynamic: ✔️
Required: ❌

AWS session token, retrieved from an AWS token service, used for authenticating that this user has received temporary permissions to access a given resource.

If no credentials are defined, we will use the default credentials provider chain to fetch credentials.

`stopAfter`

Type: array
SubType: string
Dynamic: ❌
Required: ❌

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

`stsEndpointOverride`

Type: string
Dynamic: ✔️
Required: ❌

The AWS STS endpoint with which the SDKClient should communicate.

`stsRoleArn`

Type: string
Dynamic: ✔️
Required: ❌

AWS STS Role.

The Amazon Resource Name (ARN) of the role to assume. If set the task will use the StsAssumeRoleCredentialsProvider. If no credentials are defined, we will use the default credentials provider chain to fetch credentials.

`stsRoleExternalId`

Type: string
Dynamic: ✔️
Required: ❌

AWS STS External Id.

A unique identifier that might be required when you assume a role in another account. This property is only used when an stsRoleArn is defined.

`stsRoleSessionDuration`

Type: string
Dynamic: ❌
Required: ❌
Default: 900.000000000
Format: duration

AWS STS Session duration.

The duration of the role session (default: 15 minutes, i.e., PT15M). This property is only used when an stsRoleArn is defined.

`stsRoleSessionName`

Type: string
Dynamic: ✔️
Required: ❌

AWS STS Session name.

This property is only used when an stsRoleArn is defined.

Outputs

`objects`

Type: array
SubType: S3Object
Required: ❌

The list of S3 objects.

`etag`

Type: string
Dynamic: ❓
Required: ❓

`key`

Type: string
Dynamic: ❓
Required: ❓

`lastModified`

Type: string
Dynamic: ❓
Required: ❓
Format: date-time

`owner`

Type: Owner
Dynamic: ❓
Required: ❓

`size`

Type: integer
Dynamic: ❓
Required: ❓

`uri`

Type: string
Dynamic: ❓
Required: ❓
Format: uri

`io.kestra.plugin.aws.s3.models.Owner`

Properties

`displayName`

Type: string
Dynamic: ❓
Required: ❓

`id`

Type: string
Dynamic: ❓
Required: ❓

`io.kestra.plugin.aws.s3.Copy-CopyObject`

Properties

`bucket`

Type: string
Dynamic: ✔️
Required: ✔️

The bucket name

`key`

Type: string
Dynamic: ✔️
Required: ✔️

The bucket key

Was this page helpful?

​Trigger

Trigger

etag

key

lastModified

owner

size

uri

displayName

id

bucket

key

Trigger

`etag`

`key`

`lastModified`

`owner`

`size`

`uri`

`displayName`

`id`

`bucket`

`key`