[SOLVED] Replacing values in yml file using yq - invalid key reference

Issue

I am currently working with editing/modifying yml files. I am a bit new using yq and unsure if I am going overboard using the tool. I am trying to replace two values in the yaml file with two environment values(linux system) as shown below. I am getting an invalid key reference error just simply trying to read the fields of that field using yq. What will be the best approach for modifying the fields the yml file? Would it be better to use sed or awk?

Environment Variables

$APP_KEY="DSDedfwerer02"
$APP_NAME="Test1"

test.yml

common: &default_settings
  app_key: ""
  app_name: ""
  some_key1: "test"
  some_key2: "onetwo"
  some_key3: "filename"
  another_key_n: "somevalue"

Desired result: test.yml

common: &default_settings
  app_key: "DSDedfwerer02"
  app_name: "Test1"

Solution

With mikefarah/yq, it is relatively straightforward to just import the environment variables to the local context and update the required YAML elements

k="$APP_KEY" n="$APP_NAME" yq '.common |= ( . + {"app_key": strenv(k), "app_name": strenv(n)} ) | ..style="double"' yaml

Use the -i or --inplace flag to update the file inplace. Tested on version v4.25.3

Answered By - Inian

Answer Checked By - Willingham (WPSolving Volunteer)