Question

我试图为我的非洲妇女论坛建立一个听众,并利用“名单名单”指挥,把我的2个目标团体附属于该听众,但有一些问题使听众与这2个目标群体一起。

在创建美国女权协会的听众和附属于这两个目标群体时,它按照预期开展工作,或者在使用上述各目标群体的硬编码收入时发挥作用:

listener=$(aws elbv2 create-listener --load-balancer-arn $lb_arn --protocol HTTP --port $http_external_port --default-actions  [{"Type": "forward", "Order": 1, "ForwardConfig": {"TargetGroups": [{"TargetGroupArn": "HARDCODED_FIRST_TG_ARN", "Weight": 50}, {"TargetGroupArn": "HARDCODED_SECOND_TG_ARN", "Weight": 50}]}}] )

然而,在将ARN作为变量(发挥作用)使用时,设定名单的指挥没有上述错误信息:

first_tg_arn=$(aws elbv2 describe-target-groups --names $first_tg_name --query "TargetGroups[*][TargetGroupArn]" --output text)
second_tg_arn=$(aws elbv2 describe-target-groups --names $second_tg_name --query "TargetGroups[*][TargetGroupArn]" --output text)

listener=$(aws elbv2 create-listener --load-balancer-arn $lb_arn --protocol HTTP --port $http_external_port --default-actions  [{"Type": "forward", "Order": 1, "ForwardConfig": {"TargetGroups": [{"TargetGroupArn": "${first_tg_arn}", "Weight": 50}, {"TargetGroupArn": "${second_tg_arn}", "Weight": 50}]}}] )

An error occurred (ValidationError) when calling the CreateListener operation: ${first_tg_arn} is not a valid target group ARN

Above attached both ways running the command (with hardcoded ARNs and using the ARNs variables).

问题是什么? 谢谢。

Answer 1

Your issue is about Linux variable expansion, not exactly about AWS CLI usage.
On your command that is failing you are using single quote , which will not expand variables to its value.
To expand variables you need to use double quote " or no quote at all, as you did in your second example.

Answer 2

以下指挥部门将开展工作:

aws elbv2 create-listener --load-balancer-arn <alb arn> --protocol HTTPS --port 443 --certificates CertificateArn=value --default-actions  Type=forward,ForwardConfig={TargetGroups=[{TargetGroupArn=value,Weight=1},{TargetGroupArn=value,Weight=1},{TargetGroupArn=value,Weight=1}]}

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