System Operations on AWS

登陆到CommandHost实例，通过AWS CLI来管理各个资源

1. 通过Tags来管理资源

1.1 登陆到CommandHost实例

1.2 找出development实例

1.2.1 打开PowerShell窗口

1.2.2 找出所有tag名为Project，值为ERPSystem

aws ec2 describe-instances --filter "Name=tag:Project,Values=ERPSystem"

1.2.3 使用--query，减少上面命令的输出内容，只显示InstanceId

aws ec2 describe-instances --filter "Name=tag:Project,Values=ERPSystem" --query 'Reservations[*].Instances[*].InstanceId'

1.2.4 在输出内容中包含多个选定值

aws ec2 describe-instances --filter "Name=tag:Project,Values=ERPSystem" --query 'Reservations[*].Instances[*].{ID:InstanceId,AZ:Placement.AvailabilityZone}'

1.2.5 在输出内容中包含Project的tag值

aws ec2 describe-instances --filter "Name=tag:Project,Values=ERPSystem" --query 'Reservations[*].Instances[*].{ID:InstanceId,AZ:Placement.AvailabilityZone,Project:Tags[?Key==`Project`] | [0].Value}'

1.2.6 在输出内容中包含Environment和Version的tag值

aws ec2 describe-instances --filter "Name=tag:Project,Values=ERPSystem" --query 'Reservations[*].Instances[*].{ID:InstanceId,AZ:Placement.AvailabilityZone,Project:Tags[?Key==`Project`] | [0].Value,Environment:Tags[?Key==`Environment`] | [0].Value,Version:Tags[?Key==`Version`] | [0].Value}'

1.2.7 添加格外的过滤条件，只显示Environment的tag值为development的内容

aws ec2 describe-instances --filter "Name=tag:Project,Values=ERPSystem" "Name=tag:Environment,Values=development" --query 'Reservations[*].Instances[*].{ID:InstanceId,AZ:Placement.AvailabilityZone,Project:Tags[?Key==`Project`] | [0].Value,Environment:Tags[?Key==`Environment`] | [0].Value,Version:Tags[?Key==`Version`] | [0].Value}'

1.3 修改development实例的tag名为version的值

1.3.1 运行powershell脚本来修改version值

C:	empchange-resource-tags.ps1

1.3.2 检查version值是否修改

aws ec2 describe-instances --filter "Name=tag:Project,Values=ERPSystem" "Name=tag:Environment,Values=development" --query 'Reservations[*].Instances[*].{ID:InstanceId,AZ:Placement.AvailabilityZone,Project:Tags[?Key==`Project`] | [0].Value,Environment:Tags[?Key==`Environment`] | [0].Value,Version:Tags[?Key==`Version`] | [0].Value}'

2. 通过Tag停止和启动EC2实例

2.2.1 停止所有Project名为ERPSystem，Environment为development的实例

c:	empstopinator.ps1 -tags "Project=ERPSystem;Environment=development"

2.2.2 启动所有Project名为ERPSystem，Environment为development的实例

c:	empstopinator.ps1 -tags "Project=ERPSystem;Environment=development" -start

3. Terminate不符合要求的实例

3.1.1 删除Environment标签

3.1.4 运行terminate-instances.ps1脚本

c:	emp	erminate-instances.ps1 -region us-west-2 -subnetid subnet-d67568a1