debug setup to find AWS Batch executor

[John Kern]

Hello,

I want to investigate this issue.

Nextflow 20.10 doesn't recognize AWS China credential?

https://github.com/nextflow-io/nextflow/issues/1952

The initial test case effectively a hello world process.

$ cat ~/src/sleep.nf

process sayHello {

"""

sleep 300

"""

}

I checkout the source code.

* make compile

* ./launch.sh ~/src/sleep.nf

$ ./launch.sh ~/src/sleep.nf

N E X T F L O W ~ version 21.09.0-edge

Launching `/home/jkern/src/sleep.nf` [magical_spence] - revision: bd690f3715

executor > local (1)

[5e/ef523e] process > sayHello [100%] 1 of 1 ✔

Completed at: 14-Oct-2021 00:26:06

Duration : 5m 1s

CPU hours : 0.1

Succeeded : 1

On the local machine it works fine but if it define the AWS Batch executor, it fails

$ ./launch.sh ~/src/testcase-cn.nf

N E X T F L O W ~ version 21.09.0-edge

Launching `/home/jkern/src/testcase-cn.nf` [compassionate_curran] - revision: bfa880bcf4

Unknown executor name: awsbatch

The process is the same as sleep.nf except I define process.executor, process.queue and process.container

$ cat ~/src/testcase-cn.nf

process sayHello {

executor = "awsbatch"

queue = "compute_3"

container = "...omitted..."

"""

sleep 300

"""

}

Do i need to download AWS batch dependencies or augment my environment to find the plugins? 

Thanks for your time and consideration.

Sincerely,

John

[Paolo Di Tommaso]

Since the execution is not defined in the nextflow config file, NF cannot infer the need for the plugin. Either run it adding the `-plugins nf-amazon` option or add in the config 

```

process.executor = 'awsbatch` 

```

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