Turn AWS tags into a useful data structure with jq

The JSON responses from the AWS API contain tags in a data structure like this:

"Tags": [
    {
        "Value": "consul-test-jf",
        "Key": "Name"
    },
    {
        "Value": "test-jf",
        "Key": "consul-group"
    },
    {
        "Value": "server",
        "Key": "consul-role"
    }
]

This structure is awkward to query with jq, but you can map it into a normal object like this:

jq '<path to Tags> | map({"key": .Key, "value": .Value}) | from_entries'

Which returns an object that looks like this:

{
  "consul-role": "server",
  "consul-group": "test-jf",
  "Name": "consul-test-jf"
}

Written on January 27, 2017 by justinfitzsimmons