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ack-ram-tool

A command line utility and library for using RAM in Alibaba Cloud Container Service For Kubernetes (ACK).

中文文档

Installation

You can download the latest release from Releases page.

Credential

You can use ~/.alibabacloud/credentials file(this path can be overridden using the --profile-file flag):

$ cat ~/.alibabacloud/credentials

[default]
type = access_key
access_key_id = foo
access_key_secret = bar

Or environment variables:

$ export ALIBABA_CLOUD_ACCESS_KEY_ID=foo
$ export ALIBABA_CLOUD_ACCESS_KEY_SECRET=bar

Usage

RAM Roles for Service Accounts (RRSA)

Enable RRSA feature:

$ ack-ram-tool rrsa enable -c <clusterId>

? Are you sure you want to enable RRSA feature? Yes
Enable RRSA feature for cluster c86fdd*** successfully

Check status of RRSA feature:

$ ack-ram-tool rrsa status -c <clusterId>

RRSA feature:          enabled
OIDC Provider Name:    ack-rrsa-c86fdd***
OIDC Provider Arn:     acs:ram::18***:oidc-provider/ack-rrsa-c86fdd***
OIDC Token Issuer:     https://oidc-ack-***/c86fdd***

Disable RRSA feature:

$ ack-ram-tool rrsa disable -c <clusterId>

? Are you sure you want to disable RRSA feature? Yes
Disable RRSA feature for cluster c86fdd*** successfully

Associate an RAM Role to a service account (use the --create-role-if-not-exist flag to auto create an RAM Role when it doesn't exist):

$ ack-ram-tool rrsa associate-role --create-role-if-not-exist -c <clusterId> -r <roleName> -n <namespace> -s <serviceAccount>

? Are you sure you want to associate RAM Role test-rrsa to service account test-serviceaccount (namespace: test-namespace)? Yes
Will change the assumeRolePolicyDocument of RAM Role test-rrsa with blow content:
{
  "Statement": [
   {
    "Action": "sts:AssumeRole",
    "Effect": "Allow",
    "Principal": {
     "RAM": [
      "acs:ram::18***:root"
     ]
    }
   },
   {
    "Action": "sts:AssumeRole",
    "Condition": {
     "StringEquals": {
      "oidc:aud": "sts.aliyuncs.com",
      "oidc:iss": "https://oidc-ack-**/c86fdd***",
      "oidc:sub": "system:serviceaccount:test-namespace:test-serviceaccount"
     }
    },
    "Effect": "Allow",
    "Principal": {
     "Federated": [
      "acs:ram::18***:oidc-provider/ack-rrsa-c86fdd***"
     ]
    }
   }
  ],
  "Version": "1"
 }
? Are you sure you want to associate RAM Role test-rrsa to service account test-serviceaccount (namespace: test-namespace)? Yes
Associate RAM Role test-rrsa to service account test-serviceaccount (namespace: test-namespace) successfully

Testing assume role with give OIDC token:

$ ack-ram-tool rrsa assume-role -r <roleArn> -p <oidcProviderArn> -t <oidcTokenFile>

Retrieved a STS token:
AccessKeyId:       STS.***
AccessKeySecret:   7UVy***
SecurityToken:     CAIS***
Expiration:        2021-12-03T05:51:37Z