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This is a deployment tool for uploading static websites to S3. If CloudFront is used for hosting the website, the uploaded files can be automatically invalidated in the CloudFront distribution. A prefix tree is used to minimize the number of invalidations since only a limited number of free invalidations are available per month.

The configuration is stored in a YAML file like this:

.. code-block:: yaml

site: _site
s3_bucket: example.com
cloudfront_distribution_id: XXXXXXXXXXX

cache_rules:
  - match: "/assets/*"
    maxage: 30 days

  - match_regexp: '^assets/image-\d{3}-.*\.png$'
    maxage: 90 days

  - match: "/css/*"
    maxage: 30 days

  - match: "*"
    maxage: 1 hour

The site is the directory of the static website relative to the location of the configuration file. For example, Jekyll will generate the static site in the _site directory as specified above. If you save the configuration file as .s3_website.yaml you can simply run s3-deploy-website from the same directory:

.. code-block:: shell

$ cd jekyll-site/
$ ls .s3_website.yaml
.s3_website.yaml
$ s3-deploy-website

Credentials

AWS credentials can be provided through the environment variables AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY.

.. code-block:: shell

$ export AWS_ACCESS_KEY_ID=XXXXXX
$ export AWS_SECRET_ACCESS_KEY=XXXXXX
$ s3-deploy-website

They can also be provided through the various configuration files that boto_ reads.

.. _boto: https://boto3.readthedocs.io/en/latest/guide/configuration.html

Configuration file

site The directory of the static content to be uploaded (relative to the location of the configuration file (e.g. _site for Jekyll sites).

s3_bucket The name of the S3 bucket to upload the files to. You have to allow the actions s3:GetObject, s3:PutObject, s3:DeleteObject and s3:ListBucket on the bucket and the keys e.g. arn:aws:s3:::example.com and arn:aws:s3:::example.com/*.

s3_reduced_redundancy An optional boolean to indicate whether the files should be uploaded to reduced redundancy_ storage.

cloudfront_distribution_id The CloudFront distribution to invalidate after uploading new files. Only files that were changed will be invalidated. You have to allow the action cloudfront:CreateInvalidation.

cache_rules A list of rules to determine the cache configuration of the uploaded files. The match key specifies a pattern that the rule applies to. This uses glob-style matching (with * and ?). Matching can also be performed with regular expressions by using match_regexp. Only the first rule to match a given key will be used. The maxage key specifies the time to cache the file. The value should be either a number of seconds or a string like 30 days, 5 minutes, 30 seconds, etc.

endpoint_url (Optional) For setting custom endpoint for boto3: Boto3 Session reference_

.. _reduced redundancy: https://aws.amazon.com/s3/reduced-redundancy/ .. _Boto3 Session reference: https://boto3.amazonaws.com/v1/documentation/api/latest/reference/core/session.html#boto3.session.Session.resource

Similar software

The configuration in .s3_website.yaml was inspired by s3_website_ although the options supported by s3_website are slightly different.

.. _s3_website: https://github.com/laurilehmijoki/s3_website

Licence

MIT.

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