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# aws
s
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c
a tip: to dump json use 
pulumi.Output.json_dumps
(it's python, right?). It returns 
Output
and produces string when all keys and values for the dict are ready.
E.g. my definition looks like
Copy code
pformat = pulumi.Output.format
to_json = pulumi.Output.json_dumps

            container_definitions=to_json(
                [
                    {
                        "name": service.container_name,
                        "image": pformat("{}:{}", image, service.image_tag),
                        "portMappings": [
                            {"containerPort": service.grpc_port},
                            {"containerPort": service.http_port},
                        ],
                        "environment": environment,
                        "logConfiguration": {
                            "logDriver": "awslogs",
                            "options": {
                                "awslogs-group": log_group.name,
                                "awslogs-region": get_region().name,
                                "awslogs-stream-prefix": service.image_tag,
                            },
                        },
                    }
                ]
            ),
s
Thanks. This is indeed very convenient. I did changed all that messy things with just 
pulumi.Output.json_dumps(container_properties)
, but the problem persists unfortunately
I have edited the initial message with your suggestion 👍
c
This is the second part which unfortunately I can't help with 😞 Looks like Batch doesn't replace your 
Ref::param1
so it is used literally. I didn't work with Batch 😞 I would try fixing it in web console, to make it working, then see what is the difference between web version and what Pulumi generates.
s
I'll try, thanks
c
The only difference from documentation I can see is that they use placeholders as stand-alone parameters, not as a part of a string.
s
Yeah I noticed this as well, but didn't think it was important
🤷‍♂️ 1
I have also tried to use the parameter as environment variable
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container_properties = {
        "jobRoleArn": batch_role.arn,
        "command": [
            'sh', 
            '-c',
            'echo $VAR'
        ],
        "environment": [
            {"name": "VAR", "value": "Ref::param1"},
        ],
        "image": image_uri,
        "memory": 1024*2,
        "vcpus": 1,
    }


    job_definition = aws.batch.JobDefinition("jobDefinition",
        type="container",
        container_properties=pulumi.Output.json_dumps(container_properties)
        ),
        parameters={
            "param1": "pippo",
        },
    )
but nothing, the value of 
VAR
is `Ref::param1"
c
You can try calling 
echo
directly instead of 
sh -c
(since it's usually a program rather than shell alias). like 
["echo", "Ref::param1"]
s
It worked! But the 
echo
command was just a simplification. In reality I have someting like 
sh -c python my_script.py --param Ref::param1
I found I work around defining the parameters as environment variables and then using containerOverride when firing the job. But still I do not get why it is not working with parameters
c
You can call python the same way. You don't need to prefix with 
sh
.
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