Ebrahim Moshaya Ebrahim Moshaya - 1 month ago 16
JSON Question

JSON JQ Find Replace Value

I am trying to update "image_id" value in a json structure. Using the below command, how do I update "ami-d8cf5cab" to "ami-a4df7gah" So far, I have this

cat cog.test.tfstate| jq -r '.modules[].resources[] | select(.type == "aws_launch_configuration") | select(.primary.attributes.name_prefix == "pmsadmin-lc-")'




{
"type": "aws_launch_configuration",
"primary": {
"id": "pmsadmin-lc-v47thk6rcrdgza6dujfzjatmju",
"attributes": {
"associate_public_ip_address": "false",
"ebs_block_device.#": "0",
"ebs_optimized": "false",
"enable_monitoring": "true",
"ephemeral_block_device.#": "0",
"iam_instance_profile": "cog-test-pmsadmin",
"id": "pmsadmin-lc-v47thk6rcrdgza6dujfzjatmju",
"image_id": "ami-d8cf5cab",
"instance_type": "t2.small",
"key_name": "cog-test-internal",
"name": "pmsadmin-lc-v47thk6rcrdgza6dujfzjatmju",
"name_prefix": "pmsadmin-lc-",
"root_block_device.#": "0",
"security_groups.#": "4",
"security_groups.1893851868": "sg-7ee7bf1a",
"security_groups.2774384192": "sg-e2e7bf86",
"security_groups.2825850029": "sg-86e6bee2",
"security_groups.3095009517": "sg-f4e7bf90",
"spot_price": "",
"user_data": "ed03ac6642af8c97562b065c0b37f211b58ad0a2"
}
}
}

Answer

Use the |= operator to assign to a property:

jq -r '.modules[].resources[] | select(.type == "aws_launch_configuration") | select(.primary.attributes.name_prefix == "pmsadmin-lc-")| .primary.attributes.image_id |= "ami-a4df7gah"
Comments