Terraform crashes on "terraform get" when pulling a new tag from a repository

[skenmy]

Terraform Version

Terraform v0.10.6

Terraform Configuration Files

https://www.dropbox.com/s/k3k4b9hi7330klo/tfbug.tar.gz.gpg?dl=0
Encrypted using the HashiCorp public key

Debug Output

Available as console.output.log in the tarball above

Crash Output

Available as crash.log in the tarball above

Expected Behavior

Modules should download

Actual Behavior

Terraform crashed

Steps to Reproduce

1. Update source version tag in module
2. terraform get -update=true

Important Factoids

Module is being imported from a remote repo.

References

N/A

[skenmy]

For a little context - in the base_network module in main.tf inside one of the local modules, I updated the source from source = "git@github.com:org/repo//base_network?ref=v0.1.0-alpha" to source = "git@github.com:org/repo//base_network?ref=v0.1.1-alpha"

The remote module is verified as working.

[skenmy]

Found the source of the issue:

$ brew switch terraform 0.10.5
Cleaning /usr/local/Cellar/terraform/0.10.0
Cleaning /usr/local/Cellar/terraform/0.10.2
Cleaning /usr/local/Cellar/terraform/0.10.3
Cleaning /usr/local/Cellar/terraform/0.10.4
Cleaning /usr/local/Cellar/terraform/0.10.5
Cleaning /usr/local/Cellar/terraform/0.10.6
2 links created for /usr/local/Cellar/terraform/0.10.5

$ terraform get -update=true
Get: file:///Users/paul/Project/1234567-aws-123456789012-Live-Production/eu-central-1 (update)
Get: file:///Users/paul/Project/1234567-aws-123456789012-Live-Production/eu-west-1 (update)
Get: git::ssh://git@github.com/org/repo2 (update)
Error loading modules: error downloading 'ssh://git@github.com/org/repo2': /usr/local/bin/git exited with 1: From ssh://github.com/org/repo2
   b34c764..813b8a4  master     -> origin/master
error: Your local changes to the following files would be overwritten by merge:
	iam/main.tf
Please commit your changes or stash them before you merge.
Aborting
Updating b34c764..813b8a4

Looks like the locally cached module under modules became modified somehow.

In addition - I found the following, after rm -rf .terraform in the root module:

$ terraform init -get=true -upgrade=true
Upgrading modules...
Get: file:///Users/paul/Project/1234567-aws-123456789012-Live-Production/eu-central-1 (update)
Get: file:///Users/paul/Project/1234567-aws-123456789012-Live-Production/eu-west-1 (update)
Get: git::ssh://git@github.com/org/repo2 (update)
Get: git::ssh://git@github.com/org/repo?ref=v0.1.1-alpha (update)
Error downloading modules: Error loading modules: module base_network: open .terraform/modules/eed93336955ac9feb02fb28bfcc80f44/base_network: no such file or directory

Turns out that org/repo had been moved. Thus Git was following the redirect, but no directory called base_network was in the new repo. I am unsure which of these two issues is the cause of the crash.

After rectifying these issues, v0.10.6 runs cleanly.

[jbardin]

Closed via 16161

[ghost]

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