File system Download

File system Download

Certified

Download a file via SFTP

Fetches a single remote file to internal storage. Defaults: port 22, user home as root, password auth unless a PEM key is provided, host key checking disabled by default.

yaml
type: io.kestra.plugin.fs.sftp.Download
yaml
id: fs_sftp_download
namespace: company.team

tasks:
  - id: download
    type: io.kestra.plugin.fs.sftp.Download
    host: localhost
    port: "22"
    username: foo
    password: "{{ secret('SFTP_PASSWORD') }}"
    from: "/in/file.txt"
Properties

Source URI to download

Remote host

Assets this task consumes as inputs or produces as outputs, for lineage tracking and the asset graph (Enterprise Edition). A flow declaring this property on a task is rejected in the open-source edition.

Definitions
assetFailureBehaviorstring
Possible Values
IGNOREFAILWARN

Asset failure behavior

Behavior applied to the task state when a declared asset fails to render, emit, or be persisted (e.g. a lock conflict): FAIL escalates it to FAILED, WARN (default) warns it if it would otherwise succeed, IGNORE leaves the state untouched.

enableAutobooleanstring

Whether to auto-register assets referenced dynamically at runtime that are not statically declared in inputs or outputs.

inputsarray

The assets consumed as inputs.

id*string
Min length1
typestring
outputs

The assets produced as outputs.

id*string
Min length1
Max length150
type*object
descriptionstring
displayNamestring
metadataobject
Default{}
namespacestring
Min length1
Max length150
id*string
Min length1
Max length150
type*object
descriptionstring
displayNamestring
metadataobject
Default{}
namespacestring
Min length1
Max length150
id*string
Min length1
Max length150
type*object
descriptionstring
displayNamestring
metadataobject
Default{}
namespacestring
Min length1
Max length150
id*string
Min length1
Max length150
type*object
descriptionstring
displayNamestring
metadataobject
Default{}
namespacestring
Min length1
Max length150
id*string
Min length1
Max length150
type*object
descriptionstring
displayNamestring
metadataobject
Default{}
namespacestring
Min length1
Max length150
id*string
Min length1
Max length150
type*string
Min length1

Custom asset type

descriptionstring
displayNamestring
metadataobject
Default{}
namespacestring
Min length1
Max length150
DefaultSHA_256
Possible Values
MD5SHA_1SHA_256SHA_512

Checksum algorithm to use

Defaults to SHA_256. The computed checksum is always exposed on the output as checksum. MD5 and SHA_1 are deprecated and considered weak; prefer SHA_256 or SHA_512.

Expected checksum value to compare against the downloaded file

Required when validateChecksum is true. Comparison is case-insensitive.

Defaultfalse

Enable the RSA/SHA1 algorithm (disabled by default)

Key exchange algorithm

Override the KEX algorithm (e.g. diffie-hellman-group14-sha1, diffie-hellman-group-exchange-sha256).

SSH private key (PEM)

PEM-formatted private key for public key auth. Convert OpenSSH keys with ssh-keygen -m PEM.

Passphrase for the SSH key

Password

Default22

Remote port

SFTP proxy address

SFTP proxy password

SFTP proxy port

SFTP proxy type

One of SOCKS5, STREAM, or HTTP.

SFTP proxy username

Defaulttrue

Treat path as user home root

If true (default), remote paths are resolved relative to the authenticated user's home directory.

Username

Defaultfalse

Validate the downloaded file against an expected checksum

When enabled, the task fails if the computed checksum does not match checksumExpected. The downloaded file is not stored in internal storage if validation fails.

Checksum of the downloaded file

Hex-encoded digest computed with checksumAlgorithm. Populated whenever the file is downloaded successfully.

Formaturi

The fully-qualified URIs that point to source data

Formaturi

The fully-qualified URIs that point to destination path