file function argument interpolation error

[buth]

I'm attempting to load the value of the user_data attribute of an AWS instance resource from a local file. I've run into some strange behavior regarding the argument passed to the file function.

user_data = "${file("user-data/ssh-gateway.yml")}"

... throws a syntax error.

user_data = "${file(\"user-data/ssh-gateway.yml\")}"

... also throws a syntax error.

user_data = "${file('user-data/ssh-gateway.yml')}"

... sets the user data to the uninterpolated string, ${file('user-data/ssh-gateway.yml')}.

user_data = "${file(user-data/ssh-gateway.yml)}"

... sets the user data to the uninterpolated string, ${file(user-data/ssh-gateway.yml)}.

[mitchellh]

Interesting, I'm not sure yet where this is happening but its certainly a bug somewhere. Tagged.

[buth]

Which syntax should be correct?

[mitchellh]

The first/top one should work. The rest should be invalid.

[mitchellh]

Fixed: 4a3dff2

[buth]

I'm still actually getting a syntax error with the top entry. Seems to happen regardless of whether or not the path is valid, points to an empty file, contains sub-directories, etc. The error also seems mention the wrong line number.

[mitchellh]

Are you sure you compiled with my fix? I just used it in a real TF file without isuse.

[buth]

I'm using the master branch at 5b620b7 and still having the issue. It's reporting:

Error loading config: Error parsing 50-ssh-gateway.tf: Line 22, column 1: syntax error

Oddly, there is no line 22 in that file. If I remove this statement:

user_data = "${file("user-data/ssh-gateway.yml")}"

It works.

[buth]

Of note, in just HCL, attempting to decode this line:

foo = "${func("foo/bar")}"

Results in a syntax error as well. Perhaps it's something lower level than Terraform? Thanks for your help with this!

[mitchellh]

That could be possible, let me see.

[mitchellh]

Ah you're right, I was testing with a bad branch. Errr. I know whats going on here.

[mitchellh]

Fixed upstream, please try again!

[ghost]

how to use user_data in terraform :
I ahve to pass clustername , number of nodes etc. in the user data

[ghost]

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