Replace \r from json in shell - json

Question

I have below JSON in a variable name TASK_DEFINTIION
It has a \r character at the end of "image": "700707367057.dkr.ecr.us-east-1.amazonaws.com/php-demo:feature-feature01\r" under containerDefinitions
I am using TASK_DEFINITION_AFTER= 'echo $TASK_DEFINTIION | sed "s/\\r//g"' to remove the \r but seems it is removing all the hidden carriage return but not removing the one which is visible as regular character.
Any help would be highly appriciated.
{
"memory": "1024",
"networkMode": "awsvpc",
"family": "ecs-php-demo",
"placementConstraints": [],
"cpu": "512",
"executionRoleArn": "arn:aws:iam::700707367057:role/ecsTaskExecutionRole",
"volumes": [],
"requiresCompatibilities": [
"FARGATE"
],
"taskRoleArn": "arn:aws:iam::700707367057:role/ecsTaskExecutionRole",
"containerDefinitions": [
{
"memoryReservation": 256,
"environment": [],
"name": "ecs-php-demo",
"mountPoints": [],
"image": "700707367057.dkr.ecr.us-east-1.amazonaws.com/php-demo:feature-feature01\r",
"cpu": 0,
"portMappings": [
{
"protocol": "tcp",
"containerPort": 8080,
"hostPort": 8080
}
],
"logConfiguration": {
"logDriver": "awslogs",
"options": {
"awslogs-region": "us-east-1",
"awslogs-stream-prefix": "ecs",
"awslogs-group": "/ecs/ecs-php-demo"
}
},
"essential": true,
"volumesFrom": []
}
]
}

Answer 1

Using jq rtrimstr to stay conform with the JSON syntax:
#!/usr/bin/bash
TASK_DEFINTIION="$(
jq '.containerDefinitions[].image|=rtrimstr("\r")' <<<"$TASK_DEFINTIION"
)"
echo "$TASK_DEFINTIION"
man jq:
rtrimstr(str)
Outputs its input with the given suffix string removed, if it ends with it.
jq ´[.[]|rtrimstr("foo")]´
["fo", "foo", "barfoo", "foobar", "foob"]
=> ["fo","","bar","foobar","foob"]

Answer 2

In your command, first \ escapes the second \, so sed sees only one \
You need :
TASK_DEFINITION_AFTER="$(echo $TASK_DEFINTIION | sed "s/\\\\r//g")"

Answer 3

you can use jq to replace key value:
jq '.containerDefinitions[].image="700707367057.dkr.ecr.us-east-1.amazonaws.com/php-demo:feature-feature01"' file.json
but unfortunately, jq does not support in-place editing, so you must redirect to a temporary file first and then replace your original file with it, or use sponge utility from the more utils package, like that:
jq '.containerDefinitions[].image="700707367057.dkr.ecr.us-east-1.amazonaws.com/php-demo:feature-feature01"' file.json|sponge file.json
A pure jq solution to remove \r with gsub :
jq '.containerDefinitions[].image|=gsub("[\r]"; "")' file.json|sponge file.json
output sample :
{
"memory": "1024",
"networkMode": "awsvpc",
"family": "ecs-php-demo",
"placementConstraints": [],
"cpu": "512",
"executionRoleArn": "arn:aws:iam::700707367057:role/ecsTaskExecutionRole",
"volumes": [],
"requiresCompatibilities": [
"FARGATE"
],
"taskRoleArn": "arn:aws:iam::700707367057:role/ecsTaskExecutionRole",
"containerDefinitions": [
{
"memoryReservation": 256,
"environment": [],
"name": "ecs-php-demo",
"mountPoints": [],
"image": "700707367057.dkr.ecr.us-east-1.amazonaws.com/php-demo:feature-feature01",
"cpu": 0,
"portMappings": [
{
"protocol": "tcp",
"containerPort": 8080,
"hostPort": 8080
}
],
"logConfiguration": {
"logDriver": "awslogs",
"options": {
"awslogs-region": "us-east-1",
"awslogs-stream-prefix": "ecs",
"awslogs-group": "/ecs/ecs-php-demo"
}
},
"essential": true,
"volumesFrom": []
}
]
}