The apex-shell(1) command allows you to execute commands in an AWS Lambda function via an interactive shell.
Grab a binary release, or install via go-get:
$ go get github.com/apex/apex-shell
Why on earth would you want to do this? Running arbitrary commands in AWS Lambda allows you to do things such as verify that AWS roles have adequate permissions to interact with other resources, inspecting what environment variables are presented by AWS, or simply taking a peek at the file structure of a Lambda container.
First thing to note is that apex-shell(1) requires that you run it in an Apex project directory, aka one with a ./project.json. This is
because apex-shell(1) currently utilizes many Apex features and configuration information to do its thing.
You should have your AWS profile set via export AWS_PROFILE=name, unless the "default" profile is to be used. Then execute:
$ apex-shell
You should see the following prompt, after which all commands are executing in an AWS Lambda container.
Use ^C or ^D to shut down the shell and remove the function.
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