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d759a7ce99
Without explicit conversion to UTC() from Unix time the zone information is lost, this leads to XML marshallers marshaling the time into a wrong format. This PR fixes the compatibility issue with AWS STS API by keeping Expiration format close to ISO8601 or RFC3339 Fixes #8041
107 lines
6.3 KiB
Markdown
107 lines
6.3 KiB
Markdown
## AssumeRole [](https://slack.min.io)
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Returns a set of temporary security credentials that you can use to access MinIO resources. AssumeRole requires authorization credentials for an existing user on MinIO. The advantages of this API are
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- To be able to reliably use S3 multipart APIs feature of the SDKs without re-inventing the wheel of pre-signing the each URL in multipart API. This is very tedious to implement with all the scenarios of fault tolerance that's already implemented by the client SDK. The general client SDKs don't support multipart with presigned URLs.
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- To be able to easily get the temporary credentials to upload to a prefix. Make it possible for a client to upload a whole folder using the session. The server side applications need not create a presigned URL and serve to the client for each file. Since, the client would have the session it can do it by itself.
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The temporary security credentials returned by this API consists of an access key, a secret key, and a security token. Applications can use these temporary security credentials to sign calls to MinIO API operations. The policy applied to these temporary credentials is inherited from the MinIO user credentials. By default, the temporary security credentials created by AssumeRole last for one hour. However, use the optional DurationSeconds parameter to specify the duration of the credentials. This value varies from 900 seconds (15 minutes) up to the maximum session duration to 12 hours.
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### Request Parameters
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#### DurationSeconds
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The duration, in seconds. The value can range from 900 seconds (15 minutes) up to 12 hours. If value is higher than this setting, then operation fails. By default, the value is set to 3600 seconds.
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| Params | Value |
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| :-- | :-- |
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| *Type* | *Integer* |
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| *Valid Range* | *Minimum value of 900. Maximum value of 43200.* |
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| *Required* | *No* |
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#### Policy
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An IAM policy in JSON format that you want to use as an inline session policy. This parameter is optional. Passing policies to this operation returns new temporary credentials. The resulting session's permissions are the intersection of the canned policy name and the policy set here. You cannot use this policy to grant more permissions than those allowed by the canned policy name being assumed.
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| Params | Value |
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| :-- | :-- |
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| *Type* | *String* |
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| *Valid Range* | *Minimum length of 1. Maximum length of 2048.* |
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| *Required* | *No* |
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#### Version
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Indicates STS API version information, the only supported value is '2011-06-15'. This value is borrowed from AWS STS API documentation for compatibility reasons.
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| Params | Value |
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| :-- | :-- |
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| *Type* | *String* |
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| *Required* | *Yes* |
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#### AUTHPARAMS
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Indicates STS API Authorization information. If you are familiar with AWS Signature V4 Authorization header, this STS API supports signature V4 authorization as mentioned [here](https://docs.aws.amazon.com/general/latest/gr/signature-version-4.html)
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#### Response Elements
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XML response for this API is similar to [AWS STS AssumeRole](https://docs.aws.amazon.com/STS/latest/APIReference/API_AssumeRole.html#API_AssumeRole_ResponseElements)
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#### Errors
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XML error response for this API is similar to [AWS STS AssumeRole](https://docs.aws.amazon.com/STS/latest/APIReference/API_AssumeRole.html#API_AssumeRole_Errors)
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#### Sample Request
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```
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http://minio:9000/?Action=AssumeRole&DurationSeconds=3600&Version=2011-06-15&Policy={"Version":"2012-10-17","Statement":[{"Sid":"Stmt1","Effect":"Allow","Action":"s3:*","Resource":"arn:aws:s3:::*"}]}&AUTHPARAMS
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```
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#### Sample Response
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```
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<?xml version="1.0" encoding="UTF-8"?>
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<AssumeRoleResponse xmlns="https://sts.amazonaws.com/doc/2011-06-15/">
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<AssumeRoleResult>
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<AssumedRoleUser>
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<Arn/>
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<AssumeRoleId/>
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</AssumedRoleUser>
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<Credentials>
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<AccessKeyId>Y4RJU1RNFGK48LGO9I2S</AccessKeyId>
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<SecretAccessKey>sYLRKS1Z7hSjluf6gEbb9066hnx315wHTiACPAjg</SecretAccessKey>
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<Expiration>2019-08-08T20:26:12Z</Expiration>
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<SessionToken>eyJhbGciOiJIUzUxMiIsInR5cCI6IkpXVCJ9.eyJhY2Nlc3NLZXkiOiJZNFJKVTFSTkZHSzQ4TEdPOUkyUyIsImF1ZCI6IlBvRWdYUDZ1Vk80NUlzRU5SbmdEWGo1QXU1WWEiLCJhenAiOiJQb0VnWFA2dVZPNDVJc0VOUm5nRFhqNUF1NVlhIiwiZXhwIjoxNTQxODExMDcxLCJpYXQiOjE1NDE4MDc0NzEsImlzcyI6Imh0dHBzOi8vbG9jYWxob3N0Ojk0NDMvb2F1dGgyL3Rva2VuIiwianRpIjoiYTBiMjc2MjktZWUxYS00M2JmLTg3MzktZjMzNzRhNGNkYmMwIn0.ewHqKVFTaP-j_kgZrcOEKroNUjk10GEp8bqQjxBbYVovV0nHO985VnRESFbcT6XMDDKHZiWqN2vi_ETX_u3Q-w</SessionToken>
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</Credentials>
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</AssumeRoleResult>
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<ResponseMetadata>
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<RequestId>c6104cbe-af31-11e0-8154-cbc7ccf896c7</RequestId>
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</ResponseMetadata>
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</AssumeRoleResponse>
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```
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#### Testing
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```
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$ export MINIO_ACCESS_KEY=minio
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$ export MINIO_SECRET_KEY=minio123
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$ minio server ~/test
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```
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Create new users following the multi-user guide [here](https://docs.min.io/docs/minio-multi-user-quickstart-guide.html)
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Testing with an example
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> Use the same username and password created in the previous steps.
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```
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[foobar]
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region = us-east-1
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aws_access_key_id = foobar
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aws_secret_access_key = foo12345
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```
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> NOTE: In the following commands `--role-arn` and `--role-session-name` are not meaningful for MinIO and can be set to any value satisfying the command line requirements.
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```
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$ aws --profile foobar --endpoint-url http://localhost:9000 sts assume-role --policy '{"Version":"2012-10-17","Statement":[{"Sid":"Stmt1","Effect":"Allow","Action":"s3:*","Resource":"arn:aws:s3:::*"}]}' --role-arn arn:xxx:xxx:xxx:xxxx --role-session-name anything
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{
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"AssumedRoleUser": {
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"Arn": ""
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},
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"Credentials": {
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"SecretAccessKey": "xbnWUoNKgFxi+uv3RI9UgqP3tULQMdI+Hj+4psd4",
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"SessionToken": "eyJhbGciOiJIUzUxMiIsInR5cCI6IkpXVCJ9.eyJhY2Nlc3NLZXkiOiJLOURUSU1VVlpYRVhKTDNBVFVPWSIsImV4cCI6MzYwMDAwMDAwMDAwMCwicG9saWN5IjoidGVzdCJ9.PetK5wWUcnCJkMYv6TEs7HqlA4x_vViykQ8b2T_6hapFGJTO34sfTwqBnHF6lAiWxRoZXco11B0R7y58WAsrQw",
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"Expiration": "2019-02-20T19:56:59-08:00",
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"AccessKeyId": "K9DTIMUVZXEXJL3ATUOY"
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}
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}
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```
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