aws_update/aws.py

import boto3
import base64
import os
import uuid

def create_vpc(ec2_client, prefix):
    # Create VPC
    response = ec2_client.create_vpc(
        CidrBlock='10.0.0.0/16',
        TagSpecifications=[
            {
                'ResourceType': 'vpc',
                'Tags': [{'Key': 'Name', 'Value': f"{prefix}-vpc"}]
            }
        ]
    )
    vpc_id = response['Vpc']['VpcId']
    print(f"Created VPC with ID: {vpc_id}")

    # Enable DNS support and hostnames
    ec2_client.modify_vpc_attribute(VpcId=vpc_id, EnableDnsSupport={'Value': True})
    ec2_client.modify_vpc_attribute(VpcId=vpc_id, EnableDnsHostnames={'Value': True})
    print("Enabled DNS support and hostnames.")

    return vpc_id


def create_subnet(ec2_client, vpc_id, cidr_block, availability_zone, prefix):
    # Create subnet
    response = ec2_client.create_subnet(
        VpcId=vpc_id,
        CidrBlock=cidr_block,
        AvailabilityZone=availability_zone,
        TagSpecifications=[
            {
                'ResourceType': 'subnet',
                'Tags': [{'Key': 'Name', 'Value': f"{prefix}-subnet"}]
            }
        ]
    )
    subnet_id = response['Subnet']['SubnetId']
    print(f"Created Subnet with ID: {subnet_id}")

    ec2_client.modify_subnet_attribute(SubnetId=subnet_id, MapPublicIpOnLaunch={'Value': True})
    print("Configured subnet to auto-assign public IP addresses.")

    return subnet_id


def create_internet_gateway(ec2_client, vpc_id, prefix):
    # Create Internet Gateway
    response = ec2_client.create_internet_gateway(
        TagSpecifications=[
            {
                'ResourceType': 'internet-gateway',
                'Tags': [{'Key': 'Name', 'Value': f"{prefix}-igw"}]
            }
        ]
    )
    igw_id = response['InternetGateway']['InternetGatewayId']
    print(f"Created Internet Gateway with ID: {igw_id}")

    ec2_client.attach_internet_gateway(InternetGatewayId=igw_id, VpcId=vpc_id)
    print("Attached Internet Gateway to VPC.")

    return igw_id


def create_route_table(ec2_client, vpc_id, subnet_id, igw_id, prefix):
    # Create Route Table
    response = ec2_client.create_route_table(
        VpcId=vpc_id,
        TagSpecifications=[
            {
                'ResourceType': 'route-table',
                'Tags': [{'Key': 'Name', 'Value': f"{prefix}-rt"}]
            }
        ]
    )
    route_table_id = response['RouteTable']['RouteTableId']
    print(f"Created Route Table with ID: {route_table_id}")

    ec2_client.create_route(
        RouteTableId=route_table_id,
        DestinationCidrBlock='0.0.0.0/0',
        GatewayId=igw_id
    )
    print("Added route to Internet Gateway in Route Table.")

    ec2_client.associate_route_table(RouteTableId=route_table_id, SubnetId=subnet_id)
    print("Associated Route Table with Subnet.")

    return route_table_id


def create_key_pair(ec2_client, key_name, save_to_file):
    # Create key pair
    response = ec2_client.create_key_pair(KeyName=key_name)

    private_key = response['KeyMaterial']
    with open(save_to_file, 'w') as file:
        file.write(private_key)

    print(f"Key pair '{key_name}' created and saved to '{save_to_file}'.")
    return response['KeyName']


def create_security_group(ec2_client, vpc_id, prefix):
    group_name = f"{prefix}-sg"

    # Create Security Group
    response = ec2_client.create_security_group(
        GroupName=group_name,
        Description=f"Security group for {prefix} webservices",
        VpcId=vpc_id
    )

    security_group_id = response['GroupId']
    print(f"Security group '{group_name}' created with ID: {security_group_id}")

    ec2_client.authorize_security_group_ingress(
        GroupId=security_group_id,
        IpPermissions=[
            {
                'IpProtocol': 'tcp',
                'FromPort': 22,
                'ToPort': 22,
                'IpRanges': [{'CidrIp': '0.0.0.0/0', 'Description': 'SSH access'}]
            },
            {
                'IpProtocol': 'tcp',
                'FromPort': 8080,
                'ToPort': 8080,
                'IpRanges': [{'CidrIp': '0.0.0.0/0', 'Description': 'HTTP access'}]
            },
            {
                'IpProtocol': 'tcp',
                'FromPort': 80,
                'ToPort': 80,
                'IpRanges': [{'CidrIp': '0.0.0.0/0', 'Description': 'HTTP access'}]
            }
        ]
    )

    print("Ingress rules added for SSH (22) and HTTP (80).")
    return security_group_id


def create_launch_template(ec2_client, key_name, security_group_id, instance_type, image_id, prefix, ami_id):
    user_data = f"""
    #!/bin/bash

    yum update -y
    yum install -y amazon-linux-extras
    amazon-linux-extras enable docker
    yum install -y docker

    service docker start
    usermod -a -G docker ec2-user

    docker run -d --rm -p 8080:3000 {image_id}
    echo "Aplikacja działa na porcie 8080"
    """

    # Create Launch Template
    response = ec2_client.create_launch_template(
        LaunchTemplateName=f"{prefix}-lt",
        LaunchTemplateData={
            'ImageId': ami_id,
            'InstanceType': instance_type,
            'SecurityGroupIds': [security_group_id],
            'KeyName': key_name,
            'UserData': base64.b64encode(user_data.encode('utf-8')).decode('utf-8')
        }
    )

    print(f"Launch Template created with ID: {response['LaunchTemplate']['LaunchTemplateId']}")
    return response['LaunchTemplate']['LaunchTemplateId']


def run_instance(ec2_client, launch_template_id, subnet_id, docker_image_name):
    name = f"{docker_image_name}-{uuid.uuid4()}"

    # Run EC2 instances
    response = ec2_client.run_instances(
        LaunchTemplate={
            'LaunchTemplateId': launch_template_id
        },
        MaxCount=1,
        MinCount=1,
        SubnetId=subnet_id,
        TagSpecifications=[
            {
                'ResourceType': 'instance',
                'Tags': [
                    {'Key': 'Name', 'Value': name}
                ]
            }
        ]
    )

    instance_id = response['Instances'][0]['InstanceId']
    print(f"Instance {instance_id} is running.")

    ec2_client.get_waiter('instance_running').wait(InstanceIds=[instance_id])
    instance_info = ec2_client.describe_instances(InstanceIds=[instance_id])
    public_ip = instance_info['Reservations'][0]['Instances'][0].get('PublicIpAddress')
    public_dns = instance_info['Reservations'][0]['Instances'][0].get('PublicDnsName')

    if public_ip:
        print(f"Public IP: {public_ip}")
    if public_dns:
        print(f"Public DNS: {public_dns}")

    print(f"Instance {instance_id} is running.")
    print(f"Name: {name}")

    return {
        "instance_id": instance_id,
        "name": name,
        "public_ip": public_ip,
        "public_dns": public_dns
    }

def get_matching_instance_type(ec2_client, cpu, ram, ami_id):
    # Get the architecture of the specified AMI
    ami_response = ec2_client.describe_images(ImageIds=[ami_id])
    ami_architecture = ami_response['Images'][0]['Architecture']

    best_match = None
    best_match_vcpu = float('inf')
    best_match_ram = float('inf')

    # Describe all available instance types
    paginator = ec2_client.get_paginator('describe_instance_types')
    for page in paginator.paginate():
        for instance_type in page['InstanceTypes']:
            instance_architectures = instance_type['ProcessorInfo']['SupportedArchitectures']
            instance_vcpu = instance_type['VCpuInfo']['DefaultVCpus']
            instance_ram = instance_type['MemoryInfo']['SizeInMiB'] / 1024  # Convert MiB to GiB

            # Check if the instance meets or exceeds the requirements and matches the AMI architecture
            if (ami_architecture in instance_architectures and
                    instance_vcpu >= cpu and instance_ram >= ram):
                # Update best match if it's closer to the requirements
                if (instance_vcpu < best_match_vcpu or
                        (instance_vcpu == best_match_vcpu and instance_ram < best_match_ram)):
                    best_match = instance_type['InstanceType']
                    best_match_vcpu = instance_vcpu
                    best_match_ram = instance_ram

    print(best_match)
    return best_match

def run_container(docker_image_name, ram, cpu):
    aws_region = os.getenv("AWS_REGION", "us-east-1")

    prefix = "454353"
    ami_id = "ami-0b5eea76982371e91"

    ec2_client = boto3.client('ec2', region_name=aws_region)

    instance_type = get_matching_instance_type(ec2_client, cpu, ram, ami_id)

    # Create VPC
    print("Creating VPC...")
    vpc_id = create_vpc(ec2_client, prefix)

    # Create subnet
    print("Creating subnet...")
    subnet = create_subnet(ec2_client, vpc_id, cidr_block='10.0.1.0/24', availability_zone='us-east-1a', prefix=prefix)

    # Create Internet Gateway
    print("Creating Internet Gateway...")
    igw_id = create_internet_gateway(ec2_client, vpc_id, prefix)

    # Create Route Table
    print("Creating Route Table...")
    route_table_id = create_route_table(ec2_client, vpc_id, subnet, igw_id, prefix)

    # Create Key Pair
    print("Creating Key Pair...")
    key_name = create_key_pair(ec2_client, f"{prefix}-key", f"{prefix}-key.pem")

    # Create Security Group
    print("Creating Security Group...")
    security_group_id = create_security_group(ec2_client, vpc_id, prefix)

    # Create Launch Template
    print("Creating Launch Template...")
    launch_template_id = create_launch_template(ec2_client, key_name, security_group_id, instance_type, docker_image_name, prefix, ami_id)

    # Run EC2 instance
    print("Running EC2 instance...")

    return run_instance(ec2_client, launch_template_id, subnet, docker_image_name)

def find_containers(name):
    pass

def delete_container(container_id):
    pass

def main():
    run_container("nmatsui/hello-world-api", 2, 1)


if __name__ == '__main__':
    main()