Use auto scaling in Amazon

1. register an account go
Aws.amazon.com/ec2 and click sign up for Amazon ec2.

2. Download the command line tool download the command-line tools from
Auto scaling tools.

3. Set the Java path and auto scaling path, if Java is not installed, You need to first install, http://www.java.com/en/download/index.jsp

Export Path = $ path: $ java_home/bin
Export aws_auto_scaling_home =/home/admin/AutoScaling-1.0.33.1
Export Path = $ path: $ aws_auto_scaling_home/bin

4. Configure the certificate

(1) create a file namedcredential-file-path.template

The content is as follows:

Awsaccesskeyid = Your keyid
Awssecretkey = your certificate Password


5. Execute

chmod 600 [credential file name]

6. Set the certificate path

export AWS_CREDENTIAL_FILE=<PATH> 

7. Final executionAs-cmd, the following content will appear before it is successful.

Command Name                                Description                                            ------------                                -----------                                            as-create-auto-scaling-group                Create a new auto scaling group

8. Create a configuration with an AMI

Amid: ami-0606ad07
Amid: ami-e2f144e3

(1) create a config

As-create-launch-config mylc -- region ap-northeast-1 -- image-ID ami-e2f144e3 -- instance-type t1.micro

(2) Delete config

As-delete-launch-config mylc -- region ap-northeast-1

(3) view configurations

As-describe-launch-configs -- region ap-northeast-1

9. To create a group, you must specify a Server Load balancer instance. In this case, the added instance is added to this balancer instance, for example, my-load-balancer.

(1) as-create-auto-scaling-group mygroup -- launch-configuration mylc -- availability-zones ap-northeast-1a -- region ap-northeast-1 -- Min-size 1 -- Max-size 3 -- load-balancers my-Load -balancer

(2) view group

As-describe-auto-scaling-groups -- headers -- region ap-northeast-1

(3) Delete A group

As-Update-auto-scaling-group mygroup -- Min-size 0 -- Max-size 0 -- region ap-northeast-1

As-delete-auto-scaling-group mygroup -- region ap-northeast-1

(4) to reload the configuration file, you need to set the region

As-describe-launch-configs -- AWS-Credential-file/home/admin/credential-file-path.template -- region ap-northeast-1

10. Select ELB on cloudwatch on the control interface, create an alarm, and set the conditions.