JSON から AWS CLI でインスタンス起動

自分使いのスクリプト

バージョン

$  aws --version
aws-cli/1.7.3 Python/2.7.6 Darwin/14.0.0

スクリプト

ホスト名を引数にして実行。 --cli-input-json オプションを使う。

#!/bin/sh

role=$1
host=$2

cd `(dirname $0)`

AWS="/usr/local/bin/aws --region ap-northeast-1"

JSON_FILE="file://./${role}/${host}.json"
USER_DATA="file://./${role}/user-data"

INSTANCE_ID=`${AWS} ec2 run-instances \
         --cli-input-json ${JSON_FILE} \
        | jq -r '.Instances[].InstanceId'`

${AWS} ec2 create-tags \
         --resources ${INSTANCE_ID} \
         --tags Key=Name,Value=$1

IP_ADDR=`${AWS} ec2 describe-instances --instance-id ${INSTANCE_ID} \
        | jq -r '.Reservations[].Instances[].PrivateIpAddress'`

echo "started instance. Name => $1 IP => ${IP_ADDR}  InstanceId => ${INSTANCE_ID}"

json

--cli-input-json オプションを流し込むためのひな形を下記コマンドで取得する。

aws ec2 run-instances --generate-cli-skeleton

以下の様なひな形ができる。
値のない key は削除しないとエラーになる。

{
    "DryRun": true,
    "ImageId": "",
    "MinCount": 0,
    "MaxCount": 0,
    "KeyName": "",
    "SecurityGroups": [
        ""
    ],
    "SecurityGroupIds": [
        ""
    ],
    "UserData": "",
    "InstanceType": "",
    "Placement": {
        "AvailabilityZone": "",
        "GroupName": "",
        "Tenancy": ""
    },
    "KernelId": "",
    "RamdiskId": "",
    "BlockDeviceMappings": [
        {
            "VirtualName": "",
            "DeviceName": "",
            "Ebs": {
                "SnapshotId": "",
                "VolumeSize": 0,
                "DeleteOnTermination": true,
                "VolumeType": "",
                "Iops": 0,
                "Encrypted": true
            },
            "NoDevice": ""
        }
    ],
    "Monitoring": {
        "Enabled": true
    },
    "SubnetId": "",
    "DisableApiTermination": true,
    "InstanceInitiatedShutdownBehavior": "",
    "PrivateIpAddress": "",
    "ClientToken": "",
    "AdditionalInfo": "",
    "NetworkInterfaces": [
        {
            "NetworkInterfaceId": "",
            "DeviceIndex": 0,
            "SubnetId": "",
            "Description": "",
            "PrivateIpAddress": "",
            "Groups": [
                ""
            ],
            "DeleteOnTermination": true,
            "PrivateIpAddresses": [
                {
                    "PrivateIpAddress": "",
                    "Primary": true
                }
            ],
            "SecondaryPrivateIpAddressCount": 0,
            "AssociatePublicIpAddress": true
        }
    ],
    "IamInstanceProfile": {
        "Arn": "",
        "Name": ""
    },
    "EbsOptimized": true
}

• host.json とかそんな風にして以下の様に編集。

{
    "DryRun": false,
    "ImageId": "ami-*******",
    "KeyName": "*****",
    "SecurityGroupIds": [
        "sg-**********"
    ],
    "InstanceType": "t2.small",
    "Placement": {
        "AvailabilityZone": "ap-northeast-1b",
        "Tenancy": "default"
    },
    "BlockDeviceMappings": [
        {
            "VirtualName": "root-device",
            "DeviceName": "/dev/sda1",
            "Ebs": {
                "VolumeSize": 30,
                "DeleteOnTermination": true,
                "VolumeType": "standard"
            },
            "NoDevice": ""
        }
    ],
    "Monitoring": {
        "Enabled": true
    },
    "SubnetId": "subnet-********",
    "DisableApiTermination": false,
    "PrivateIpAddress": "10.0.0.10",
    "IamInstanceProfile": {
        "Name": "web_servers"
    },
    "EbsOptimized": false
}

IamInstanceProfile は IAM Role の名前だけでよい。 ドキュメントには Arn と Name を指定するように書かれていたが、
上記以外では下記のようなエラーが出力された。

A client error (InvalidParameterCombination) occurred when calling the RunInstances operation: The parameter 'iamInstanceProfile.name' may not be used in combination with 'iamInstanceProfile.arn'