mc put

The mc put command uploads objects from a local filesystem to an AIStor deployment.

You can also use mc put to upload objects to S3-compatible services.

Syntax

Example Syntax

The mc put command has the following syntax:

mc [GLOBALFLAGS] put                      \
                 TARGET                   \
                 [--checksum value]       \
                 [--disable-multipart]    \
                 [--enc-kms value]        \
                 [--enc-s3 value]         \
                 [--enc-c value]          \
                 [--if-not-exists]        \
                 [--parallel, -P integer] \
                 [--part-size, -s string]

Brackets [] indicate optional parameters.
Parameters sharing a line are mutually dependent.
Parameters separated using the pipe | operator are mutually exclusive.

Copy the example to a text editor and modify as-needed before running the command in the terminal/shell.

Parameters

TARGET

Required

The full path to the alias or prefix where the command should run. The TARGET must contain an alias and bucket name.

The TARGET may also contain the following optional components:

PREFIX where the object should upload to
OBJECT-NAME to use in place of the file names

Valid TARGETs could take any of the following forms:

ALIAS/BUCKET
ALIAS/BUCKET/PREFIX
ALIAS/BUCKET/OBJECT-NAME
ALIAS/BUCKET/PREFIX/OBJECT-NAME

--checksum

Optional

Add a checksum to an uploaded object.

Valid values are:

MD5
CRC32
CRC32C
SHA1
SHA256

The flag requires server trailing headers and works with AWS or AIStor targets.

--disable-multipart

Optional

Disables multipart uploads and directs mc to send the object in a single PUT operation.

--enc-kms

Encrypt or decrypt objects using server-side SSE-KMS encryption with client-managed keys.

The parameter accepts a key-value pair formatted as KEY=VALUE

KEY- The full path to the object as alias/bucket/path/object.ext. You can specify only the top-level path to use a single encryption key for all operations in that path.
VALUE - Specify an existing data key on the external KMS. See the mc admin kms key create reference for creating data keys.

For example:

--enc-kms "myminio/mybucket/prefix/object.obj=mybucketencryptionkey"

You can specify multiple encryption keys by repeating the parameter.

Specify the path to a prefix to apply encryption to all matching objects at that path:

--enc-kms "myminio/mybucket/prefix/=mybucketencryptionkey"

--enc-s3

Optional

Encrypt or decrypt objects using server-side SSE-S3 encryption with KMS-managed keys. Specify the full path to the object as alias/bucket/prefix/object.

For example:

--enc-s3 "myminio/mybucket/prefix/object.obj"

You can specify the parameter multiple times to denote different object(s) to encrypt:

--enc-s3 "myminio/mybucket/foo/fooobject.obj" --enc-s3 "myminio/mybucket/bar/barobject.obj"

Specify the path to a prefix to apply encryption to all matching objects at that path:

--enc-s3 "myminio/mybucket/foo"

--enc-c

Optional

Encrypt or decrypt objects using server-side SSE-C encryption with client-managed keys.

AIStor strongly recommends against using SSE-C encryption in production workloads. Use --enc-kms instead.

The parameter accepts a key-value pair formatted as KEY=VALUE

KEY: The full path to the object as alias/bucket/path/object.ext. You can specify only the top-level path to use a single encryption key for all operations in that path.
VALUE: Specify either a 32-byte RawBase64-encoded key or a 64-byte hex-encoded key for use with SSE-C encryption. Raw Base64 encoding rejects =-padded keys. Omit the padding or use a Base64 encoder that supports RAW formatting.

For example:

# RawBase64-Encoded string "mybucket32byteencryptionkeyssec"
--enc-c "myminio/mybucket/prefix/object.obj=bXlidWNrZXQzMmJ5dGVlbmNyeXB0aW9ua2V5c3NlYwo"

You can specify multiple encryption keys by repeating the parameter.

Specify the path to a prefix to apply encryption to all matching objects at that path:

--enc-c "myminio/mybucket/prefix/=bXlidWNrZXQzMmJ5dGVlbmNyeXB0aW9ua2V5c3NlYwo"

--parallel

Alias: --P

Optional

For multi-part uploads, specify the number of parts of the object to upload in parallel.

If not defined, defaults to a value of 4.

--part-size

Alias: -s

Optional

Specify the size to use for each part of a multi-part upload.

If not defined, defaults to a value of 16MiB.

Global Flags

This command supports any of the global flags.

Examples

Upload a File and Specify the Object Name

The following command uploads the file logo.png from the local file system to the business bucket on the minio deployment, uploading it on the destination as company-logo.png.

mc put images/collateral/logo.png minio/business/company-logo.png

Upload a Multipart Object in Parallel with a Specified Part Size

The following command uploads a file in chunks of 20MiB each and uploads 8 parts of the file in parallel. 8 parts are uploaded in succession until all parts of the object have uploaded.

mc put ~/videos/collateral/splash-page.mp4 minio/business --parallel 8 --part-size 20MiB