terraform init/apply kills Macbook Pro M1 Network connection #349

[jeff-auth0]

Problem

Apple M1 Macbook pro network connection dies when run terraform init. I also used [tfenv](https://github.com/tfutils/tfenv) to manage different terraform versions. I tried all different terraform ARM versions from the latest to 1.1.0. Nothing worked.

The only way I could get the network connection back was to restart the laptop.

Temporary workaround

Install the terraform AMD version, and it works.

ARM Version tried

1.2.5, 1.1.0, 1.3.0-alpha

[kmoe]

Thanks for the issue. This is certainly quite concerning, though I'm glad you can use the AMD binaries as a workaround.

We haven't been able to reproduce this issue on M1 laptops, so there could be something about your system that causes this to happen. Perhaps there is some security software installed, a proxy, or some other customisation? Does this problem happen only with Terraform, or with other programs (especially other Go binaries)?

[jeff-auth0]

Hi @kmoe
Thank you for your quick response. It only happens with terraform. My laptop is brand new and it has same software as other older Macbook pro laptop (Intel based) which does not have any issues with terraform.

[crw]

Hi @jeff-auth0, you might consider posting this in the Community Forum as well as on the Apple Forums. This is unlikely to be a bug in Terraform, as this is the first report in the 19 months since the release of the M1 chipset. However, I will leave this open for now just in case others have this same issue and can offer a reproducible use case.

Out of curiosity, did you use Migration Assistant to go from Intel to M1? I initially used Migration Assistant, which I had been using on Intel Macs since 2007, and it caused bizarre, inexplicable problems. I had to reinstall MacOS from scratch and manually move my data and reinstall my applications. You may not have that issue, that was just my personal experience.

[jeff-auth0]

Hi folks,
After fiddling and searching for a few days, the solution was to disable IPv6 in your macOS system settings and then terraform worked.

Thanks for help
Jeff

[thebriankeys]

@jeff-auth0 thanks for sharing this issue and the workaround. I had been stuck on this same issue for several days and disabling IPv6 also resolved it for me. I am also on Macbook Pro M1

[ryankearney]

Can we get this issue opened again? Disabling IPv6 is not a fix. When I run terraform init it completely breaks the system networking. ifconfig hangs in the terminal, opening networking hangs system preferences, and a reboot is required to restore networking.

[jeff-auth0]

@ryankearney As far as i know this is not terraform issue. Try restarting laptop after disabling IPv6. Just curious how did you disable IPv6 ?

[ryankearney]

@jeff-auth0 I changed "Configure IPv6" to "Link-local only" on my primary/active adapter. Only then did terraform plan (or running VS Code with the HashiCorp Terraform extension installed) not break networking.

I just installed terraform today on a M1 MacBook Pro and had this issue and a Google search led me here. I will reformat my laptop in the future and only install homebrew and terraform to test, but either the terraform binary is breaking networking, or it's triggering something else installed which is causing networking to break.

Some network level apps I have installed are Little Snitch, PaloAlto Global Protect VPN Client, ProtonVPN, and Docker.

[jeff-auth0]

@ryankearney VPN's and firewall can block terraform connections. As long as you can use terraform init/plan and other commands now then you don't need to format your laptop.

[ryankearney]

@jeff-auth0 I understand how VPNs and firewalls work, thanks though.

Disabling IPv6 is not a solution.