CODEWITHSUNDEEP
shellamazon-web-servicesforeachjq
Thiago
Thiago

Reputation: 1

jq key, value for each shell script

I'm trying to use every Key,Value of an output and pipe it to another command. Here is what I'm trying to use:

INSTANCE_ID=$(curl http://169.254.169.254/latest/meta-data/instance-id)
aws ec2 describe-tags --filters "Name=resource-id,Values=$INSTANCE_ID"

With the above command, I have the following output:

{
"Tags": [
    {
        "ResourceType": "instance",
        "ResourceId": "i-0342a609edf80001a",
        "Value": "A-VALUE",
        "Key": "A-KEY"
    },
    {
        "ResourceType": "instance",
        "ResourceId": "i-0342a609edf80001a",
        "Value": "B-VALUE",
        "Key": "B-KEY"
    },
    {
        "ResourceType": "instance",
        "ResourceId": "i-0342a609edf80001a",
        "Value": "C-VALUE",
        "Key": "C-KEY"
    },
    {
        "ResourceType": "instance",
        "ResourceId": "i-0342a609edf80001a",
        "Value": "D-VALUE",
        "Key": "D-KEY"
    },
    {
        "ResourceType": "instance",
        "ResourceId": "i-0342a609edf80001a",
        "Value": "E-VALUE",
        "Key": "E-KEY"
    },
    {
        "ResourceType": "instance",
        "ResourceId": "i-0342a609edf80001a",
        "Value": "F-VALUE",
        "Key": "G-KEY"
    },
    {

Now I want to pipe each Key,Value to the following command:

aws ec2 create-tags --resources XXXXX --tags Key=H-KEY,Value=H-VALUE

Where the quantity and values of Key,Value are variable. So I believe I need a "for each".

May you help me?

It's like: For each Key,Value, do:

aws ec2 create-tags --resources XXXXX --tags Key=A-KEY,Value=A-VALUE
aws ec2 create-tags --resources XXXXX --tags Key=B-KEY,Value=B-VALUE
aws ec2 create-tags --resources XXXXX --tags Key=C-KEY,Value=C-VALUE
aws ec2 create-tags --resources XXXXX --tags Key=N...-KEY,Value=N...-VALUE

Upvotes: 0

Views: 307

Answers (1)

glenn jackman
glenn jackman

Reputation: 247012

has a @sh directive to output values properly quoted for the shell:

aws ec2 describe-tags --filters "Name=resource-id,Values=$INSTANCE_ID" \
| jq -r '.Tags[] | @sh "aws ec2 create-tags --resources XXXXX --tags Key=\(.Key),Value=\(.Value)"'

Given your input, this outputs

aws ec2 create-tags --resources XXXXX --tags Key='A-KEY',Value='A-VALUE'
aws ec2 create-tags --resources XXXXX --tags Key='B-KEY',Value='B-VALUE'
aws ec2 create-tags --resources XXXXX --tags Key='C-KEY',Value='C-VALUE'
aws ec2 create-tags --resources XXXXX --tags Key='D-KEY',Value='D-VALUE'
aws ec2 create-tags --resources XXXXX --tags Key='E-KEY',Value='E-VALUE'
aws ec2 create-tags --resources XXXXX --tags Key='G-KEY',Value='F-VALUE'

To execute those as commands pipe into sh:

aws ec2 describe-tags ... | jq -r ... | sh

jq is quite an adventure. You need to add a "select" filter to remove keys that start with "aws:"

jq -r '
    .Tags[] | 
    select(.Key | test("^aws:") | not) |
    @sh "aws ... --tags Key=\(.Key),Value=\(.Value)"
'

Upvotes: 5

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