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content/aws/50000100-cdk-using-different-profiles.md

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+Title: Using multiple environments AWS CLI and profiles with CDK
+Date: 2025-01-12
+Category: AWS Academy
+Series: AWS CDK
+series_index: 100
+Tags: aws, cdk, python
+Author: Rehan Haider
+Summary: How to use multiple environments, AWS Accounts and profiles with AWS CDK
+Keywords: AWS, cdk, python
+
+So far we've been using the default `cdk deploy` command that uses the default AWS CLI profile that you have configured. However, AWS CLI and AWS CDK both supports using multiple profiles and environments. This is useful when you have multiple AWS accounts and you want to deploy your CDK stacks to different accounts.
+
+
+## Environments
+
+When we intantiate a stack in CDK, we can pass an `env` parameter that specifies the environment in which the stack will be deployed. This environment contains the AWS account and region where the stack will be deployed. 
+
+E.g., working off a [new CDK app]({filename}50000020-cdk-new-app.md), we typically have the following code in the `app.py` file:
+
+```python
+import aws_cdk as cdk
+
+from cdk_app.my_stack import MyStack
+
+app = cdk.App()
+my_stack = MyStack(
+    app,
+    "MyStack",
+) #👈🏽 No env define
+
+app.synth()
+```
+
+In the above code, we are not specifying the environment in which the stack will be deployed. This means that the stack will be deployed to the default AWS CLI profile that you have configured.
+
+To specify the environment, we can pass an `env` parameter to the `MyStack` constructor:
+
+```python
+import aws_cdk as cdk
+
+from cdk_app.my_stack import MyStack
+
+
+env = {
+    "account": "123456789012",
+    "region": "us-east-1",
+} #👈🏽 Define the environment
+
+
+app = cdk.App()
+my_stack = MyStack(
+    app,
+    "MyStack",
+    env=env,
+)
+
+app.synth()
+```
+
+In the above code, we are specifying the environment in which the stack will be deployed. The `env` parameter is a dictionary that contains the `account` and `region` keys. The `account` key specifies the AWS account where the stack will be deployed, and the `region` key specifies the AWS region where the stack will be deployed.
+
+## Using multiple profiles
+
+To use multiple profiles, you can utilise `--profile`` flag to configure and use a different profile.
+
+E.g. while configuring a new profile:
+
+```bash
+aws configure --profile my_profile
+```
+
+To use this profile with CDK, you can pass the `--profile` flag to the `cdk deploy` command:
+
+```bash
+cdk deploy --profile my_profile
+```
+
+This will deploy the stack using the `my_profile` profile that you have configured.