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launchOhio.py
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launchOhio.py
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import boto3
import os
from dotenv import load_dotenv
from termcolor import colored
from terminateInstancesOhio import terminateOhio
def launchOhioInstances():
load_dotenv(verbose=True)
session = boto3.session.Session(
aws_access_key_id=os.getenv("ACCESS_KEY"),
aws_secret_access_key=os.getenv("SECRET_KEY"),
)
client = session.client("ec2", region_name="us-east-2")
ec2 = session.resource("ec2", region_name="us-east-2")
key_name = "Pedro-O-ProjetoCloud"
try:
keyPair = ec2.create_key_pair(KeyName=key_name)
with open("./{0}.pem".format(key_name), "w") as file:
file.write(keyPair.key_material)
os.system("chmod 700 {0}.pem".format(key_name))
print("Successfully created Ohio Database key pair. Continuing...")
except:
print("Ohio Database key pair already exists. Continuing...")
myInstances = ec2.instances.filter(
Filters=[
{
"Name": "tag:Owner",
"Values": ["Pedro Ramos"],
},
{
"Name": "tag:Application",
"Values": ["Database Server"],
},
{
"Name": "instance-state-name",
"Values": ["running", "pending"],
},
]
)
myInstanceList = [instance for instance in myInstances]
if len(myInstanceList) > 0:
print("Instances already running.")
resp = input("Terminate and recreate instances? [Y/N] ")
if resp == "Y" or resp == "y":
terminateOhio()
try:
security_group = client.create_security_group(
GroupName="Database-SG",
Description="Security group for the Database.",
)
client.authorize_security_group_ingress(
GroupId=security_group["GroupId"],
IpPermissions=[
{
"IpProtocol": "tcp",
"FromPort": 22,
"ToPort": 22,
"IpRanges": [{"CidrIp": "0.0.0.0/0"}],
},
{
"IpProtocol": "tcp",
"FromPort": 5432,
"ToPort": 5432,
"IpRanges": [{"CidrIp": "0.0.0.0/0"}],
},
],
)
print("Database security group successfully created. Continuing...")
except:
print("Database security group already exists. Continuing...")
try:
ec2_instances = ec2.create_instances(
TagSpecifications=[
{
"ResourceType": "instance",
"Tags": [
{"Key": "Name", "Value": "DB-Instance"},
{"Key": "Owner", "Value": "Pedro Ramos"},
{"Key": "Application", "Value": "Database Server"},
],
},
],
ImageId="ami-07efac79022b86107",
KeyName=key_name,
MinCount=1,
MaxCount=1,
InstanceType="t2.micro",
SecurityGroups=["Database-SG"],
UserData="""#!/bin/sh
sudo apt update
sudo apt install postgresql postgresql-contrib -y
sudo -u postgres psql -c "CREATE USER cloud WITH PASSWORD 'cloud';"
sudo -u postgres createdb -O cloud tasks
sed -i "59 c listen_addresses='*'" /etc/postgresql/12/main/postgresql.conf
sed -i "$ a host all all 0.0.0.0/0 trust" /etc/postgresql/12/main/pg_hba.conf
sudo ufw allow 5432/tcp
sudo systemctl restart postgresql
""",
)
print(colored("Successfully created instances!", "green"))
print(
"Number of instances created in Ohio: {0}".format(
len(ec2_instances)
)
)
for i in range(len(ec2_instances)):
# use the boto3 waiter
ec2_instances[i].wait_until_running()
# reload the instance object
ec2_instances[i].reload()
public_ip = ec2_instances[i].public_ip_address
print("{0}) Public IPv4 Address: {1}".format(i + 1, public_ip))
except:
print(colored("Failed to create Ohio instances. Try again!\n", "red"))
else:
public_ip = myInstanceList[0].public_ip_address
print("Running instances unchanged. Continuing...")
print(
colored(
"Ohio setup complete. Proceeding to North Virginia setup...\n",
"green",
)
)
return public_ip
else:
try:
security_group = client.create_security_group(
GroupName="Database-SG", Description="Security group for the Database."
)
client.authorize_security_group_ingress(
GroupId=security_group["GroupId"],
IpPermissions=[
{
"IpProtocol": "tcp",
"FromPort": 22,
"ToPort": 22,
"IpRanges": [{"CidrIp": "0.0.0.0/0"}],
},
{
"IpProtocol": "tcp",
"FromPort": 5432,
"ToPort": 5432,
"IpRanges": [{"CidrIp": "0.0.0.0/0"}],
},
],
)
print("Database security group successfully created. Continuing...")
except:
print("Database security group already exists. Continuing...")
try:
ec2_instances = ec2.create_instances(
TagSpecifications=[
{
"ResourceType": "instance",
"Tags": [
{"Key": "Name", "Value": "DB-Instance"},
{"Key": "Owner", "Value": "Pedro Ramos"},
{"Key": "Application", "Value": "Database Server"},
],
},
],
ImageId="ami-07efac79022b86107",
KeyName=key_name,
MinCount=1,
MaxCount=1,
InstanceType="t2.micro",
SecurityGroups=["Database-SG"],
UserData="""#!/bin/sh
sudo apt update
sudo apt install postgresql postgresql-contrib -y
sudo -u postgres psql -c "CREATE USER cloud WITH PASSWORD 'cloud';"
sudo -u postgres createdb -O cloud tasks
sudo sed -i "59 c listen_addresses='*'" /etc/postgresql/12/main/postgresql.conf
sudo sed -i "$ a host all all 0.0.0.0/0 trust" /etc/postgresql/12/main/pg_hba.conf
sudo ufw allow 5432/tcp
sudo systemctl restart postgresql
""",
)
print(colored("Successfully created instances!", "green"))
print("Number of instances created in Ohio: {0}".format(len(ec2_instances)))
for i in range(len(ec2_instances)):
# use the boto3 waiter
ec2_instances[i].wait_until_running()
# reload the instance object
ec2_instances[i].reload()
public_ip = ec2_instances[i].public_ip_address
print("{0}) Public IPv4 Address: {1}".format(i + 1, public_ip))
print(
colored(
"Ohio setup complete. Proceeding to North Virginia setup...\n",
"green",
)
)
return public_ip
except Exception as e:
print(e)
print(colored("Failed to create Ohio instances. Try again!\n", "red"))