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Get the latest AMI ID for Amazon Linux 2.
aws ec2 describe-images \
--owners amazon \
--filters "Name=name,Values=amzn2-ami-hvm-2.0.*-x86_64-gp2" \
--query 'sort_by(Images, &CreationDate)[-1].ImageId' \
--output textoutput
ami-0ce3d93513d1506e7by anonymous
Get the latest AMI ID for Amazon Linux 2023.
aws ec2 describe-images \
--owners amazon \
--filters "Name=name,Values=al2023-ami-20*-kernel-6.1-x86_64" \
--query 'sort_by(Images, &CreationDate)[-1].ImageId' \
--output textoutput
ami-0ab3794db9457b60aby anonymous
Create a security group
aws ec2 create-security-group \
--group-name my-sg \
--description "My security group" \
--vpc-id vpc-1a2b3c4doutput
{
"GroupId": "sg-903004f8"
}by anonymous
[Security Group] Create a rule to allow HTTP from any source
aws ec2 authorize-security-group-ingress \
--group-id sg-903004f8 \
--protocol tcp \
--port 80 \
--cidr "0.0.0.0/0"output
{
"Return": true,
"SecurityGroupRules": [
{
"SecurityGroupRuleId": "sgr-abcdefghi01234561",
"GroupId": "sg-903004f8",
"GroupOwnerId": "6800000000003",
"IsEgress": false,
"IpProtocol": "tcp",
"FromPort": 80,
"ToPort": 80,
"CidrIpv4": "0.0.0.0/0"
}
]
}by anonymous
[Security Group] Create an allow all rule from your public IP address
myip=$(curl -s https://checkip.amazonaws.com)
aws ec2 authorize-security-group-ingress \
--group-id sg-903004f8 \
--protocol -1 \
--cidr "$myip/32"output
{
"Return": true,
"SecurityGroupRules": [
{
"SecurityGroupRuleId": "sgr-abcdefghi01234562",
"GroupId": "sg-903004f8",
"GroupOwnerId": "6800000000003",
"IsEgress": false,
"IpProtocol": "-1",
"FromPort": -1,
"ToPort": -1,
"CidrIpv4": "35.180.112.225/32"
}
]
}by anonymous
Launch an EC2 instance with the latest Amazon Linux 2023 AMI
ami=$(aws ec2 describe-images \
--owners amazon \
--filters "Name=name,Values=al2023-ami-20*-kernel-6.1-x86_64" \
--query 'sort_by(Images, &CreationDate)[-1].ImageId' \
--output text)
aws ec2 run-instances \
--image-id $ami \
--count 1 \
--instance-type t2.micro \
--key-name example_keypair \
--subnet-id subnet-0123456789abcde \
--security-group-ids sg-903004f8 sg-903004f9output
{
"Groups": [],
"Instances": [
{
"AmiLaunchIndex": 0,
"ImageId": "ami-0bb84b8ffd87024d8",
"InstanceId": "i-5203422c",
"InstanceType": "t2.micro",
"KeyName": "example_keypair",
"LaunchTime": "2013-07-19T02:42:39+00:00",
"Monitoring": {
"State": "disabled"
},
"Placement": {
"AvailabilityZone": "us-east-1c",
"GroupName": "",
"Tenancy": "default"
},
"PrivateDnsName": "ip-10-0-1-114.ec2.internal",
"PrivateIpAddress": "10.0.1.114",
"ProductCodes": [],
"PublicDnsName": "",
"State": {
"Code": 0,
"Name": "pending"
},
"StateTransitionReason": "",
"SubnetId": "subnet-0123456789abcde",
"VpcId": "vpc-1a2b3c4d",
"Architecture": "x86_64",
"BlockDeviceMappings": [],
"ClientToken": "a1234567-1111-2222-3333-a1b2c3d4e5f6",
"EbsOptimized": false,
"EnaSupport": true,
"Hypervisor": "xen",
"NetworkInterfaces": [
{
"Attachment": {
"AttachTime": "2013-07-19T02:42:39+00:00",
"AttachmentId": "eni-attach-52193138",
"DeleteOnTermination": true,
"DeviceIndex": 0,
"Status": "attaching",
"NetworkCardIndex": 0
},
"Description": "",
"Groups": [
{
"GroupName": "default",
"GroupId": "sg-903004f9"
},
{
"GroupName": "my-sg",
"GroupId": "sg-903004f8"
}
],
"Ipv6Addresses": [],
"MacAddress": "01:2e:3e:4e:5e:6e",
"NetworkInterfaceId": "eni-a7edb1c9",
"OwnerId": "6800000000003",
"PrivateDnsName": "ip-10-0-1-114.ec2.internal",
"PrivateIpAddress": "10.0.1.114",
"PrivateIpAddresses": [
{
"Primary": true,
"PrivateDnsName": "ip-10-0-1-114.ec2.internal",
"PrivateIpAddress": "10.0.1.114"
}
],
"SourceDestCheck": true,
"Status": "in-use",
"SubnetId": "subnet-0123456789abcde",
"VpcId": "vpc-1a2b3c4d",
"InterfaceType": "interface"
}
],
"RootDeviceName": "/dev/xvda",
"RootDeviceType": "ebs",
"SecurityGroups": [
{
"GroupName": "default",
"GroupId": "sg-903004f9"
},
{
"GroupName": "my-sg",
"GroupId": "sg-903004f8"
}
],
"SourceDestCheck": true,
"StateReason": {
"Code": "pending",
"Message": "pending"
},
"VirtualizationType": "hvm",
"CpuOptions": {
"CoreCount": 1,
"ThreadsPerCore": 1
},
"CapacityReservationSpecification": {
"CapacityReservationPreference": "open"
},
"MetadataOptions": {
"State": "pending",
"HttpTokens": "required",
"HttpPutResponseHopLimit": 2,
"HttpEndpoint": "enabled",
"HttpProtocolIpv6": "disabled",
"InstanceMetadataTags": "disabled"
},
"EnclaveOptions": {
"Enabled": false
},
"BootMode": "uefi-preferred",
"PrivateDnsNameOptions": {
"HostnameType": "ip-name",
"EnableResourceNameDnsARecord": false,
"EnableResourceNameDnsAAAARecord": false
},
"MaintenanceOptions": {
"AutoRecovery": "default"
},
"CurrentInstanceBootMode": "legacy-bios"
}
],
"OwnerId": "6800000000003",
"ReservationId": "r-5875ca20"
}by anonymous
Delete an EC2 instance
aws ec2 terminate-instances \
--instance-ids i-5203422coutput
{
"TerminatingInstances": [
{
"InstanceId": "i-5203422c",
"CurrentState": {
"Code": 32,
"Name": "shutting-down"
},
"PreviousState": {
"Code": 16,
"Name": "running"
}
}
]
}by anonymous
Delete a security group
aws ec2 delete-security-group --group-id sg-903004f8output
Noneby anonymous
See all EC2 instances
aws ec2 describe-instances \
--query 'Reservations[].Instances[].{InstanceId: InstanceId, PrivateIp: join(`, `, NetworkInterfaces[].PrivateIpAddress), Platform:Platform, State: State.Name, Name: Tags[?Key==`Name`].Value|[0]}' \
--output tableoutput
--------------------------------------------------------------------------
| DescribeInstances |
+----------------------+-------+-----------+-----------------+-----------+
| InstanceId | Name | Platform | PrivateIp | State |
+----------------------+-------+-----------+-----------------+-----------+
| i-1234567890abcdef1 | no1 | None | 172.31.100.101 | running |
| i-1234567890abcdef2 | no2 | None | 172.31.100.102 | stopped |
| i-1234567890abcdef3 | no3 | None | 172.31.100.103 | stopped |
| i-1234567890abcdef4 | no4 | windows | 172.31.100.104 | stopped |
+----------------------+-------+-----------+-----------------+-----------+by anonymous
See all Windows EC2 instances
aws ec2 describe-instances \
--query 'Reservations[].Instances[?Platform==`windows`][].{InstanceId: InstanceId, PrivateIp: join(`, `, NetworkInterfaces[].PrivateIpAddress), Platform:Platform, State: State.Name, Name: Tags[?Key==`Name`].Value|[0]}' \
--output tableoutput
--------------------------------------------------------------------------
| DescribeInstances |
+----------------------+-------+-----------+-----------------+-----------+
| InstanceId | Name | Platform | PrivateIp | State |
+----------------------+-------+-----------+-----------------+-----------+
| i-1234567890abcdef4 | no4 | windows | 172.31.100.104 | stopped |
+----------------------+-------+-----------+-----------------+-----------+by anonymous
See all Linux EC2 instances
aws ec2 describe-instances \
--query 'Reservations[].Instances[?Platform!=`windows`][].{InstanceId: InstanceId, PrivateIp: join(`, `, NetworkInterfaces[].PrivateIpAddress), Platform:Platform, State: State.Name, Name: Tags[?Key==`Name`].Value|[0]}' \
--output tableoutput
--------------------------------------------------------------------------
| DescribeInstances |
+----------------------+-------+-----------+-----------------+-----------+
| InstanceId | Name | Platform | PrivateIp | State |
+----------------------+-------+-----------+-----------------+-----------+
| i-1234567890abcdef1 | no1 | None | 172.31.100.101 | running |
| i-1234567890abcdef2 | no2 | None | 172.31.100.102 | stopped |
| i-1234567890abcdef3 | no3 | None | 172.31.100.103 | stopped |
+----------------------+-------+-----------+-----------------+-----------+by anonymous
Allocation of Elastic IP addresses determined to be in Japan (JP) by RIR (100 attempts)
now=$(aws ec2 describe-addresses | grep '"PublicIp"' | wc -l)
quota=$(aws service-quotas list-service-quotas --service-code ec2 --query 'Quotas[?QuotaName==`EC2-VPC Elastic IPs`].Value' --output text | awk -F . '{print $1}')
vacant=$((quota - now))
k=0
array=()
for i in {1..100}; do
ip=$(aws ec2 allocate-address --query 'PublicIp' --output text)
dns=$(echo $ip | awk -F . '{print $4"."$3"."$2"."$1}')".cc.wariate.jp"
code=$(dig +short txt $dns)
echo $code $ip
let k++
array+=($ip)
if [ $code = "JP" ]; then
j=1
for v in "${array[@]}"; do
eip=$(aws ec2 describe-addresses --filters "Name=public-ip,Values=$v" --query Addresses[].AllocationId[] --output text)
if [ $j -ne $vacant ]; then
aws ec2 release-address --allocation-id $eip
fi
let j++
done
break
fi
if [ $k -eq $vacant ]; then
for v in "${array[@]}"; do
eip=$(aws ec2 describe-addresses --filters "Name=public-ip,Values=$v" --query Addresses[].AllocationId[] --output text)
aws ec2 release-address --allocation-id $eip
done
k=0
array=()
fi
sleep 2; doneoutput
"US" 54.168.131.200
"US" 54.168.131.201
"US" 54.168.131.202
"US" 54.168.131.203
"US" 54.168.131.204
"US" 54.168.131.205
"US" 54.168.131.206
...by anonymous
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