Installing old terraform versions fails on arm64 Mac

[Dan Weintraub]

When I try to install Terraform 0.14.10 it fails:

Downloading terraform version 0.14.10 from https://releases.hashicorp.com/terraform/0.14.10/terraform_0.14.10_darwin_arm.zip
Error: terraform version 0.14.10 not found

There isn't an arm release of this version so naturally the download fails, but if it downloaded the amd64 version I could run it under Rosetta 2.

[Dan Weintraub]

I now see the README describes support for an environmental variable to work around this problem, but perhaps it shouldn't require finding this repo and reading that to make it work.

[CJ Horton]

I've been meaning to add help scripts to output information on the plugin configuration options via the CLI, which should help with this problem.

I suppose that's not very visible in the moment, though, since it requires running a separate command - do you think it would be worth adding some extra help text in the error handling here to suggest that the user may want to investigate the plugin's configuration options?

[Dan Weintraub]

It probably would have helped in my case, but maybe that's just because I was new to the software and plugin config via environmental variables is particularly hard to discover.

[Maycon Ritzmann]

Hey everyone,

I had racked my brains and figured it out when reading the function and using a set -x

To works:

ASDF_HASHICORP_OVERWRITE_ARCH_terraform=amd64 asdf install terraform x.x.x

Not Works:

ASDF_HASHICORP_OVERWRITE_ARCH_TERRAFORM=amd64 asdf install terraform 0.14.10
ASDF_HASHICORP_OVERWRITE_ARCH=amd64 asdf install terraform 0.14.10

As mentioned when defining only the variable ASDF_HASHICORP_OVERWRITE_ARCH it is ignored and it is always false due to the function

$HOME/.asdf/plugins/terraform/bin/install
get_arch() {
  local -r machine="$(uname -m)"
  local -r upper_toolname=$(echo "${toolname}" | tr '[:upper:]' '[:lower:]')
  local -r tool_specific_arch_override="ASDF_HASHICORP_OVERWRITE_ARCH_${upper_toolname}"

  OVERWRITE_ARCH_TOOL=${!tool_specific_arch_override:-"false"}
  OVERWRITE_ARCH=${OVERWRITE_ARCH_TOOL:-$(ASDF_HASHICORP_OVERWRITE_ARCH)}

  if [[ $OVERWRITE_ARCH != "false" ]]; then
    echo "$OVERWRITE_ARCH"
  elif [[ $machine == "arm64" ]] || [[ $machine == "aarch64" ]]; then
    echo "arm64"
  elif [[ $machine == *"arm"* ]] || [[ $machine == *"aarch"* ]]; then
    echo "arm"
  elif [[ $machine == *"386"* ]]; then
    echo "386"
  else
    echo "amd64"
  fi
}

[Nadiia Kotelnikova]

Only ASDF_HASHICORP_OVERWRITE_ARCH_TERRAFORM=amd64 asdf install terraform 0.12.31 worked for me. @mayconritzmann Thanks for the hint

[Ryan Schneider]

FWIW you can also run asdf under Rosetta 2 using arch -x86_64 asdf install terraform 0.12.31 for the same basic effect.

[civitas-erick]

Only ASDF_HASHICORP_OVERWRITE_ARCH_TERRAFORM=amd64 asdf install terraform 0.12.31 worked for me. @mayconritzmann Thanks for the hint

This totally works, thank you!

[Adeel Ahmad]

Incase you using terraform with terragrunt, you can install it like;

ASDF_HASHICORP_OVERWRITE_ARCH_TERRAFORM=amd64 asdf install terraform `version`
ASDF_TERRAGRUNT_OVERWRITE_ARCH=amd64 asdf install terragrunt `version`