add text at the end of specific line

I have a yaml file like this:

spec:
  values:
    image: xxxx.dkr.ecr.eu-west-1.amazonaws.com/xxxx:mypr-ij4uhtuh3

I’m finding adding this this text: # {"$imagepolicy": "xxx:xxx-test-pr333" } at the end of the line containing the word image surprisingly hard.

I’ve tried with sed, awk and ruby but I can’t get it straight, sed is especially confusing with all those special characters and spaces.

the end result should be this:

spec:
  values:
    image: xxxx.dkr.ecr.eu-west-1.amazonaws.com/xxxx:mypr-ij4uhtuh3 # {"$imagepolicy": "xxx:xxx-test-pr333" }

thanks for any hint.

>Solution :

This might work for you (GNU sed):

sed 's/^\s*image:.*/&  # {"$imagepolicy": "xxx:xxx-test-pr333" }/' file

Match a line that following some whitespace begins image: and append # {"$imagepolicy": "xxx:xxx-test-pr333" }/ to it.