Downloading files from s3 with aws cli - does not
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You will need to install and configure the package in order to access objects in S3.
Install the AWS CLI
The AWS CLI is available through the pip installer:
If you have administrator privileges type
Otherwise use
The project is open source, so you can also download the source at www.cronistalascolonias.com.ar
Rivanna Users - Install the to your user directory:
Authenticate the CLI to Amazon Web Services
Once the package is installed, you will need to configure it:
You will be prompted to enter four values:
- Your AWS access keys: / : These can be obtained from within your AWS account. See this AWS documentation for how to retrieve these two keys. If you are the root account owner, go to your account security settings to retrieve these. It is highly advised NOT to use root credentials for access in this way.
- Your default AWS region: Unless you know your S3 bucket is scoped to another region, enter .
- Your default output format: Your options are , and output.
The AWS account you enter in these steps must have at least read permissions to access the resources you want to download.
- List Buckets
- Make a new bucket
Remember that S3 bucket names must be globally unique from all other AWS customers.
- Remove a bucket
Remember that S3 buckets must be emptied of all contents before they can be removed. Once removed the bucket name is available for other users.
- List the contents of a bucket
FOLDERS IN S3 - Contrary to how it appears, S3 is not a file system in the ordinary sense. Instead, it is a web-based, API-driven object storage service containing KEYS and VALUES. The key (name) of a file (object) is arbitrary after the name of the bucket itself, but must obey certain rules such as using no unusual characters. The typical form of grouping objects under “subfolders” uses the same naming convention as regular filesystems with a “key” such as:
The value (contents) of that key are the actual contents of the file itself. But it is important to remember that folders as they appear in the path of an S3 object are simply a mental convenience.
- Download a file
- Upload a file
To upload a file and make it publicly available via HTTPS, add an property to it:
- Synchronize to/from an S3 bucket
You can synchronize between any source/destination so long as at least one of them is S3:
- Sync from local workstation to S3
- Sync from S3 to local workstation
- Sync from S3 bucket to another S3 bucket
- Remove a file from S3
- Move a file within S3
- Presign an S3 URL
In some cases users want to share a file with a remote party without creating access keys or for a limited amount of time. The feature is useful in this case since it creates a unique signed URL that expires after a set amount of time.
To set the expiry time, calculate the length of time you want the signature to last in seconds. This value will be used with the flag.
The package is the standard library enabling programmatic access to AWS using Python. can access all AWS services and is helpful for creating, managing, or removing remote resources and infrastructure dynamically. The steps below refer to using for working with files in S3.
Install
will obtain its credentials from one of a few various locations:
- Hard-coded credentials within the application code itself. This is not recommended.
- Inherited credentials from the directory within your home directory. This is common for remote development.
- Injected as environment variables of the environment in which your code is running.
- Inherited credentials from the IAM role of the EC2 instance running your code. This is a best practice for production systems in AWS.
Use
Import the library as you would for any other Python package, and set up a client or resource for the AWS service:
Upload a file to S3
Download a file from S3
More Information about
Documentation is available here.
| howto, storage aws, boto3, cli, cloud, curl, howto, storage
Источник: /userinfo/howtos/storage/aws-s3/
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