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API for cognitect.aws.credentials - aws-api


Full namespace name: cognitect.aws.credentials

Overview

Contains credentials providers and helpers for discovering credentials.

Alpha. Subject to change.

Public Variables and Functions


auto-refreshing-credentials

function
Usage: (auto-refreshing-credentials provider)
       (auto-refreshing-credentials provider scheduler)

Deprecated. Use cached-credentials-with-auto-refresh
Deprecated since aws-api version true

basic-credentials-provider

function
Usage: (basic-credentials-provider {:keys [access-key-id secret-access-key]})

Given a map with :access-key-id and :secret-access-key,
returns an implementation of CredentialsProvider which returns
those credentials on fetch.

Alpha. Subject to change.

cached-credentials-with-auto-refresh

function
Usage: (cached-credentials-with-auto-refresh provider)
       (cached-credentials-with-auto-refresh provider scheduler)

Returns a CredentialsProvider which wraps `provider`, caching
credentials returned by `fetch`, and auto-refreshing the cached
credentials in a background thread when the credentials include a
::ttl.

Call `stop` to cancel future auto-refreshes.

The default ScheduledExecutorService uses a ThreadFactory that
spawns daemon threads. You can override this by providing your own
ScheduledExecutorService.

Alpha. Subject to change.

calculate-ttl

function
Usage: (calculate-ttl {:keys [Expiration]})

Primarily for internal use, returns time to live (ttl, in seconds),
based on `:Expiration` in credentials.  If `credentials` contains no
`:Expiration`, defaults to 3600.

`:Expiration` can be a string parsable by java.time.Instant/parse
(returned by ec2/ecs instance credentials), a java.util.Date
(returned from :AssumeRole on aws sts client), a numeric value
representing milliseconds since the epoch of 1970-01-01T00:00:00Z,
or an Instant object.

chain-credentials-provider

function
Usage: (chain-credentials-provider providers)

Returns a credentials-provider which chains together multiple
credentials providers.

`fetch` calls each provider in order until one returns a non-nil
result. This provider is then cached for future calls to `fetch`.

`fetch` returns nil if none of the providers return credentials.

Alpha. Subject to change.

container-credentials-provider

function
Usage: (container-credentials-provider http-client)

For internal use. Do not call directly.

Return credentials from ECS iff one of
AWS_CONTAINER_CREDENTIALS_RELATIVE_URI or
AWS_CONTAINER_CREDENTIALS_FULL_URI is set.

Alpha. Subject to change.

default-credentials-provider

function
Usage: (default-credentials-provider http-client)

Returns a chain-credentials-provider with (in order):

  environment-credentials-provider
  system-property-credentials-provider
  profile-credentials-provider
  container-credentials-provider
  instance-profile-credentials-provider

Alpha. Subject to change.

environment-credentials-provider

function
Usage: (environment-credentials-provider)

Return the credentials from the environment variables.

Look at the following variables:
* AWS_ACCESS_KEY_ID      required
* AWS_SECRET_ACCESS_KEY  required
* AWS_SESSION_TOKEN      optional

Returns nil if any of the required variables is blank.

Logs error if one required variable is blank but the other
is not.

Alpha. Subject to change.

fetch

function
Usage: (fetch provider)

Return the credentials found by this provider, or nil.

Credentials should be a map with the following keys:

:aws/access-key-id                      string  required
:aws/secret-access-key                  string  required
:aws/session-token                      string  optional
:cognitect.aws.credentials/ttl          number  optional  Time-to-live in seconds

fetch-async

function
Usage: (fetch-async provider)

Returns a channel that will produce the result of calling fetch on
the provider.

Alpha. Subject to change.

instance-profile-credentials-provider

function
Usage: (instance-profile-credentials-provider http-client)

For internal use. Do not call directly.

Return credentials from EC2 metadata service iff neither of
AWS_CONTAINER_CREDENTIALS_RELATIVE_URI or
AWS_CONTAINER_CREDENTIALS_FULL_URI
is set.

Alpha. Subject to change.

profile-credentials-provider

function
Usage: (profile-credentials-provider)
       (profile-credentials-provider profile-name)
       (profile-credentials-provider profile-name f)

Return credentials in an AWS configuration profile.

Arguments:

profile-name  string  The name of the profile in the file. (default: default)
f             File    The profile configuration file. (default: ~/.aws/credentials)

https://docs.aws.amazon.com/sdk-for-java/v1/developer-guide/credentials.html
  Parsed properties:

  aws_access_key        required
  aws_secret_access_key required
  aws_session_token     optional

Alpha. Subject to change.

stop

function
Usage: (stop credentials)

Stop auto-refreshing the credentials.

Alpha. Subject to change.

system-property-credentials-provider

function
Usage: (system-property-credentials-provider)

Return the credentials from the system properties.

Look at the following properties:
* aws.accessKeyId  required
* aws.secretKey    required

Returns nil if any of the required properties is blank.

Logs error if one of the required properties is blank but
the other is not.

Alpha. Subject to change.
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