Boto3

by Vivek Dounde

Create a EC2 Instance using boto3 Things to Keep in Mind:- Change ImageId accordingly MaxCount=1, # Keep the max count to 1, unless you have a requirement to increase it InstanceType="t2.micro", # Change it as per your need, But use the Free tier one KeyName="ec2-key" # Change it to the name of the key you have. :return: Creates the EC2 instance.

import boto3

def create_ec2_instance():

    try:
        print ("Creating EC2 instance")
        resource_ec2 = boto3.client("ec2")
        resource_ec2.run_instances(
            ImageId="ami-0f58b397bc5c1f2e8",
            MinCount=1,
            MaxCount=1,
            InstanceType="t2.micro",
            KeyName="vickey"
        )
    except Exception as e:
        print(e)

create_ec2_instance()

Describe instance using Boto3

import boto3

def describe_ec2_instance():

    try:
        print ("Describing EC2 instance")
        resource_ec2 = boto3.client("ec2")
        print(resource_ec2.describe_instances()["Reservations"][0]["Instances"][0]["InstanceId"])
        return str(resource_ec2.describe_instances()["Reservations"][0]["Instances"][0]["InstanceId"])
    except Exception as e:
        print(e)

describe_ec2_instance()

Reboot Instance using Boto3

import boto3

def reboot_ec2_instance():

    try:
        print ("Reboot EC2 instance")
        instance_id = describe_ec2_instance()
        resource_ec2 = boto3.client("ec2")
        print(resource_ec2.reboot_instances(InstanceIds=[instance_id]))
    except Exception as e:
        print(e)

reboot_ec2_instance()

Stop Instance using Boto3

import boto3

def stop_ec2_instance():

    try:
        print ("Stop EC2 instance")
        instance_id = describe_ec2_instance()
        resource_ec2 = boto3.client("ec2")
        print(resource_ec2.stop_instances(InstanceIds=[instance_id]))
    except Exception as e:
        print(e)

stop_ec2_instance()

Start Instance using Boto3

import boto3

def start_ec2_instance():

    try:
        print ("Start EC2 instance")
        instance_id = describe_ec2_instance()
        resource_ec2 = boto3.client("ec2")
        print(resource_ec2.start_instances(InstanceIds=[instance_id]))
    except Exception as e:
        print(e)

start_ec2_instance()

Terminate Instance using Boto3

import boto3

def terminate_ec2_instance():

    try:
        print ("Terminate EC2 instance")
        instance_id = describe_ec2_instance()
        resource_ec2 = boto3.client("ec2")
        print(resource_ec2.terminate_instances(InstanceIds=[instance_id]))
    except Exception as e:
        print(e)

terminate_ec2_instance()

""" author : Pythoholic Lets Grep the VPC IDs and the Subnet IDs. Lets Create the Security Group. Lets create EC2 instances using Python BOTO3 """ import boto3 from botocore.exceptions import ClientError

class CreateInstanceEC2(object): def init(self, ec2_client): self.ec2_client = ec2_client

def grep_vpc_subnet_id(self):
    response = self.ec2_client.describe_vpcs()
    for vpc in response["Vpcs"]:
        if vpc["Tags"][0]["Value"].__contains__("Default"):
            vpc_id = vpc["VpcId"]
            break
    print("The Default VPC : ", vpc_id)
    response = self.ec2_client.describe_subnets(Filters=[{'Name': 'vpc-id', 'Values': [vpc_id]}])
    subnet_id = response["Subnets"][0]["SubnetId"]
    print("The Default Subnet : ", subnet_id)
    return vpc_id, subnet_id

def create_security_group(self):
    sg_name = "awspy_security_group"
    try:
        vpc_id, subnet_id = self.grep_vpc_subnet_id()
        response = self.ec2_client.create_security_group(
            GroupName=sg_name,
            Description="This is created using python",
            VpcId=vpc_id
        )
        sg_id = response["GroupId"]
        print(sg_id)
        sg_config = self.ec2_client.authorize_security_group_ingress(
            GroupId=sg_id,
            IpPermissions=[
                {
                    'IpProtocol':'tcp',
                    'FromPort':22,
                    'ToPort': 22,
                    'IpRanges':[{'CidrIp':'0.0.0.0/0'}]
                }
            ]
        )
        print(sg_config)
        return sg_id, sg_name
    except Exception as e:
        if str(e).__contains__("already exists"):
            response = self.ec2_client.describe_security_groups(GroupNames=[sg_name])
            sg_id = response["SecurityGroups"][0]["GroupId"]
            print(sg_id, sg_name)
            return sg_id, sg_name

def create_ec2_instance(self):
    """
    MaxCount=1, # Keep the max count to 1, unless you have a requirement to increase it
    InstanceType="t2.micro", # Change it as per your need, But use the Free tier one
    KeyName="ec2-key" # Change it to the name of the key you have.
    :return: Creates the EC2 instance.
    """
    print("Creating EC2 instance")
    sg_id, sg_name = self.create_security_group()
    vpc_id, subnet_id = self.grep_vpc_subnet_id()
    self.ec2_client.run_instances(
        ImageId="ami-08e0ca9924195beba",
        MinCount=1,
        MaxCount=1,
        InstanceType="t2.micro",
        KeyName="ec2-key",
        SecurityGroupIds=[sg_id],
        SubnetId=subnet_id,
    )

Calling Area

try: ec2_client = boto3.client('ec2') call_obj = CreateInstanceEC2(ec2_client) call_obj.grep_vpc_subnet_id() call_obj.create_security_group() call_obj.create_ec2_instance() except ClientError as e: print("There is a error in the client configuration: ", e)

VickeyDounde/Boto3

Boto3

Calling Area