MinIO / S3

Upload, download, delete, and assert on objects in MinIO or any S3-compatible store.

The minio native plugin provides object storage operations against MinIO or any S3-compatible API. No installation needed.

Connection fields

All four actions share the same connection config:

Field	Required	Default	Description
`endpoint`	no	`localhost:9000`	Host:port of MinIO/S3
`access_key`	no	`minioadmin`	Access key ID
`secret_key`	no	`minioadmin`	Secret access key
`use_ssl`	no	`false`	Enable TLS

minio.put

Uploads an object.

- id: store_report
  action: minio.put
  config:
    endpoint: minio:9000
    access_key: minioadmin
    secret_key: minioadmin
    bucket: testmesh               # required
    object: reports/run-001.json   # required
    data: "{{response_body}}"      # required — string or base64 bytes
    content_type: application/json # optional
  output:
    etag: $.etag

Output: { "etag": "abc123", "size": 1024, "bucket": "testmesh", "object": "reports/run-001.json" }

minio.get

Downloads an object.

- id: fetch_artifact
  action: minio.get
  config:
    endpoint: minio:9000
    access_key: minioadmin
    secret_key: minioadmin
    bucket: testmesh
    object: reports/run-001.json
    as: json    # text | base64 | json
  output:
    artifact: $.body

Output: { "body": {...}, "content_type": "application/json", "size": 1024, "etag": "abc123" }

minio.delete

Deletes an object.

- id: cleanup
  action: minio.delete
  config:
    endpoint: minio:9000
    access_key: minioadmin
    secret_key: minioadmin
    bucket: testmesh
    object: reports/run-001.json
  assert:
    - "deleted == true"

minio.assert

Asserts an object exists (or doesn't), optionally checking content type and size.

- id: verify_upload
  action: minio.assert
  config:
    endpoint: minio:9000
    access_key: minioadmin
    secret_key: minioadmin
    bucket: testmesh
    object: reports/run-001.json
    exists: true                    # required
    content_type: application/json  # optional
    size_gte: 100                   # optional: assert size >= N bytes

Output: { "exists": true, "content_type": "application/json", "size": 1024 }

MinIO is included in the local dev stack. Start it with ./infra.sh up — available at localhost:9000 (console at localhost:9001, login: minioadmin/minioadmin).