AWS Step and Batch Dynamic Command - amazon-web-services

Question

I have a batch Job with a single Job Definition that executes depending on a parameter on the environment command option.
The original value is "--param2=XXX" but I need this to be dynamic according to the Input parameters of the Step Functions.
{
"param2": "--param2=YYY"
}
I haven't been able to replace the value in the Step Function with the Input Value
{
"Step1": {
"Type": "Task",
"Resource": "arn:aws:states:::batch:submitJob.sync",
"Parameters": {
"JobDefinition": "arn:aws:batch:us-east-2:zzzzzzzzz:job-definition/XXXXXX",
"JobQueue": "arn:aws:batch:us-east-2:zzzzzzzz:job-queue/YYYYYY",
"JobName": "Step1",
"ContainerOverrides": {
"Environment": [
{
"Name": "envparam",
"Value": "0"
}
],
"Command": [
"python",
"run.py",
"--param=val",
"$.param2"
]
}
},
"Next": "Step2"
}
}

Answer 1

I found a solution adding a Parameter to Batch and it is referenced using Ref::Param2
This is the complete code
{
"Step1": {
"Type": "Task",
"Resource": "arn:aws:states:::batch:submitJob.sync",
"Parameters": {
"JobDefinition": "arn:aws:batch:us-east-2:zzzzzzzzz:job-definition/XXXXXX",
"JobQueue": "arn:aws:batch:us-east-2:zzzzzzzz:job-queue/YYYYYY",
"JobName": "Step1",
"Parameters": {
"Param2.$": "$.param2"
},
"ContainerOverrides": {
"Environment": [
{
"Name": "envparam",
"Value": "0"
}
],
"Command": [
"python",
"run.py",
"--param=val",
"Ref::Param2"
]
}
},
"Next": "Step2"
}
}