提取aws命令的output，并使用jq赋值给bash中的一个变量

Question

按照 aws 命令输出以下 json，我想从中提取具有字符串“vm-managed-itg* 值（输出中的最后两个条目）的资源

$aws resourcegroupstaggingapi get-resources --resource-type-filters cloudwatch:alarm --profile acc | jq '.ResourceTagMappingList[] | 选择（包含（{标签：[{Key：“vm：cost：accountenv”}]}）|不）| 选择（包含（{标签：[{值：“itg”}]}）|不）'

{
  "ResourceARN": "arn:aws:cloudwatch:us-east-1:xxxx:alarm:vm-managed-uat-test",
  "Tags": []
}
{
  "ResourceARN": "arn:aws:cloudwatch:us-east-1:xxxx:alarm:vm-managed-stg-test",
  "Tags": []
}
{
  "ResourceARN": "arn:aws:cloudwatch:us-east-1:xxxx:alarm:vm-managed-uat-test3",
  "Tags": []
}
{
  "ResourceARN": "arn:aws:cloudwatch:us-east-1:xxxx:alarm:vm-managed-stg-test1",
  "Tags": []
}
{
  "ResourceARN": "arn:aws:cloudwatch:us-east-1:xxxx:alarm:vm-managed-itg-test1",
  "Tags": []
}
{
  "ResourceARN": "arn:aws:cloudwatch:us-east-1:xxxx:alarm:vm-managed-itg-test",
  "Tags": []
}

我尝试添加 jq -r '.[].ResourceARN' 但它没有用，而是抛出了这个错误

~$ aws resourcegroupstaggingapi get-resources --resource-type-filters cloudwatch:alarm --profile per-acc --output json | jq '.ResourceTagMappingList[] | select(contains({Tags: [{Key: "vm:cost:accountenv"} ]}) | not) | select(contains({Tags: [{Value: "itg"} ]}) | not)' | jq -r '.[].ResourceARN'
jq: error (at <stdin>:4): Cannot index string with string "ResourceARN"
jq: error (at <stdin>:8): Cannot index string with string "ResourceARN"
jq: error (at <stdin>:12): Cannot index string with string "ResourceARN"
jq: error (at <stdin>:16): Cannot index string with string "ResourceARN"
jq: error (at <stdin>:20): Cannot index string with string "ResourceARN"
jq: error (at <stdin>:24): Cannot index string with string "ResourceARN"

Answer 1

使用select仅在匹配条件时返回实体。 Substring 匹配项可以用contains进行测试：

select(.ResourceARN|contains("vm-managed-itg"))

Output：

{
  "ResourceARN": "arn:aws:cloudwatch:us-east-1:xxxx:alarm:vm-managed-itg-test1",
  "Tags": []
}
{
  "ResourceARN": "arn:aws:cloudwatch:us-east-1:xxxx:alarm:vm-managed-itg-test",
  "Tags": []
}

如果您只对ResourceARN的值感兴趣，没有标签和周围的对象，那么：

.ResourceARN | select(contains("vm-managed-itg"))

jq 将过滤器应用于其输入中的每个 JSON 实体（这是一个 stream 的对象）。

Output：

"arn:aws:cloudwatch:us-east-1:xxxx:alarm:vm-managed-itg-test1"
"arn:aws:cloudwatch:us-east-1:xxxx:alarm:vm-managed-itg-test"

（ jq -r对于原始 output 不带引号）。