AWS: Create instance

aws ec2 describe-vpcs --filters "Name=isDefault,Values=true" --query "Vpcs[0].VpcId" --output text

DEFAULTVPCID=$(aws ec2 describe-vpcs --filters "Name=isDefault,Values=true" --query "Vpcs[0].VpcId" --output text)

echo Your VPC is $DEFAULTVPCID.




aws ec2 describe-subnets --filters "Name=vpc-id,Values=$DEFAULTVPCID" --query "Subnets[0].SubnetId" --output text

SUBNETID=$(aws ec2 describe-subnets --filters "Name=vpc-id,Values=$DEFAULTVPCID" --query "Subnets[0].SubnetId" --output text)

echo Your subnet is $SUBNETID.




SG=$(aws ec2 create-security-group \
    --group-name AppSG\
    --description "The security group of the application." \
    --vpc-id $DEFAULTVPCID\
    --query 'GroupId' \
    --output text)
echo The security group is $SG.

aws ec2 authorize-security-group-ingress \
    --group-id $SG \
    --protocol tcp \
    --port 8080 \
    --cidr 0.0.0.0/0



AMI=$(aws ec2 describe-images \
    --owners 099720109477 \
    --filters 'Name=name,Values=ubuntu/images/hvm-ssd/ubuntu-*-22.04-amd64-server-*' 'Name=state,Values=available' \
    --query 'sort_by(Images, &CreationDate)[-1].[ImageId]' \
    --output text)
echo The AMI is going to be $AMI.

cat << EOF > pokemon.sh
#!/bin/sh

sudo apt update
sudo apt install openjdk-17-jre-headless -y
wget https://github.com/ciberado/pokemon-java/releases/download/v2.0.0/pokemon-2.0.0.jar
java -jar pokemon-2.0.0.jar
EOF


cat pokemon.sh




aws ec2 run-instances \
    --subnet-id $SUBNETID\
    --image-id $AMI \
    --security-group-ids $SG \
    --instance-type t3.nano \
    --block-device-mapping DeviceName=/dev/sda1,Ebs={VolumeSize=8} \
    --user-data file://pokemon.sh \
    --tag-specifications "ResourceType=instance,Tags=[{Key=Name,Value=PokemonServer},{Key=App,Value=Pokemon}]"




IP=$(aws ec2 describe-instances \
    --filters "Name=tag:Name,Values=PokemonServer" \
    --query 'Reservations[*].Instances[*].PublicIpAddress' \
    --output text)
echo Your application is at http://$IP:8080

echo And your Pokémon is $(curl -s http://$IP:8080/ | jq .name -r).