LocalStackis a great tool which Simulates the AWS services on your local system. You can run theCLIcommands, Terraform scripts just as you would on Cloud.
In this quick read, I will show you how to setup LocalStack and spin up a S3 instance through CLI command and Terraform.
Setup Requirements:
- Python
- pip
- Docker
- Terraform
Installation
pip install localstack
Startup
Before you start running localstack, ensure that Docker service is up & running.
Checkout - How you can use DockerDesktop to create containers locally.
Start localstack in docker mode, from a container
Check Service status
% localstack status services
┏━━━━━━━━━━━━━━━━━━━━━━━━━━┳━━━━━━━━━━━━━┓
┃ Service ┃ Status ┃
┡━━━━━━━━━━━━━━━━━━━━━━━━━━╇━━━━━━━━━━━━━┩
│ acm │ ✔ available │
│ apigateway │ ✔ available │
│ cloudformation │ ✔ available │
│ cloudwatch │ ✔ available │
│ config │ ✔ available │
│ dynamodb │ ✔ available │
│ dynamodbstreams │ ✔ available │
│ ec2 │ ✔ available │
│ es │ ✔ available │
│ events │ ✔ available │
│ firehose │ ✔ available │
│ iam │ ✔ available │
│ kinesis │ ✔ available │
│ kms │ ✔ available │
│ lambda │ ✔ available │
│ logs │ ✔ available │
│ opensearch │ ✔ available │
│ redshift │ ✔ available │
│ resource-groups │ ✔ available │
│ resourcegroupstaggingapi │ ✔ available │
│ route53 │ ✔ available │
│ route53resolver │ ✔ available │
│ s3 │ ✔ available │
│ s3control │ ✔ available │
│ secretsmanager │ ✔ available │
│ ses │ ✔ available │
│ sns │ ✔ available │
│ sqs │ ✔ available │
│ ssm │ ✔ available │
│ stepfunctions │ ✔ available │
│ sts │ ✔ available │
│ support │ ✔ available │
│ swf │ ✔ available │
└──────────────────────────┴─────────────┘
You should now see localstack container running on DockerDesktop dashboard.
Creating S3 through AWS CLI
Let's get into the localstack container and see what services are running.
Check if the AWS CLI is running
Add AWS profile configuration
aws configure --profile default
Enter following values
Access key/Secret : test
Region: eu-west-2
profile : you can leave it blank`
Check configuration : $ aws configure list
Create s3 bucket
We will be deploying to localhost:4566
aws s3 mb s3://my-bucket --endpoint-url http://localhost:4566
make_bucket: my-bucket
Creation S3 through Terraform
Ensure, Terraform is running on your system.
% terraform --version
Terraform v1.2.2
on darwin_arm64
You can now either walk along with me or checkout this code from my repo
Deploy S3 on LocalStack with Terraform
Time for some IaC
main.tf
resource "aws_s3_bucket" "s3-localstack" {
bucket = "my-bucket-1"
}
provider.tf
provider "aws" {
access_key = "test"
secret_key = "test"
region = "us-east-1"
skip_credentials_validation = true
skip_requesting_account_id = true
skip_metadata_api_check = true
s3_use_path_style = true
endpoints {
s3 = "http://localhost:4566"
}
}
Run the regular Terraform commands
Initialise working directory : terraform init
Plan change, check : terraform plan
Apply changes : terraform apply
That's it
Check what services are running on
% localstack status services
┏━━━━━━━━━━━━━━━━━━━━━━━━━━┳━━━━━━━━━━━━━┓
┃ Service ┃ Status ┃
┡━━━━━━━━━━━━━━━━━━━━━━━━━━╇━━━━━━━━━━━━━┩
│ acm │ ✔ available │
│ apigateway │ ✔ available │
│ cloudformation │ ✔ available │
│ cloudwatch │ ✔ available │
│ config │ ✔ available │
│ dynamodb │ ✔ available │
│ dynamodbstreams │ ✔ available │
│ ec2 │ ✔ available │
│ es │ ✔ available │
│ events │ ✔ available │
│ firehose │ ✔ available │
│ iam │ ✔ available │
│ kinesis │ ✔ available │
│ kms │ ✔ available │
│ lambda │ ✔ available │
│ logs │ ✔ available │
│ opensearch │ ✔ available │
│ redshift │ ✔ available │
│ resource-groups │ ✔ available │
│ resourcegroupstaggingapi │ ✔ available │
│ route53 │ ✔ available │
│ route53resolver │ ✔ available │
│ s3 │ ✔ running │--> here we are
│ s3control │ ✔ available │
│ secretsmanager │ ✔ available │
│ ses │ ✔ available │
│ sns │ ✔ available │
│ sqs │ ✔ available │
│ ssm │ ✔ available │
│ stepfunctions │ ✔ available │
│ sts │ ✔ available │
│ support │ ✔ available │
│ swf │ ✔ available │
└──────────────────────────┴─────────────┘
Go ahead and test your scripts.
Thanks.
Top comments (1)
To check the s3 buckets list
aws s3 ls --endpoint-url=localhost:4566 --recursive --human-readable