tfenv simplifies the installation and management of various Terraform versions on a single host. With ‘tfenv use terraform-version‘ command, you can effortlessly switch between different Terraform versions based on your requirements.
Installing “tfenv” and using it to manage Terraform versions in Linux:
1) Clone the GitHub repository (https://github.com/tfutils/tfenv) to your preferred directory. Here’s an example of cloning it into the root user’s home directory
$ git clone https://github.com/tfutils/tfenv.git ~/.tfenv
2) Append the following line to either “root/.bash_profile” or “/etc/profile” file
export PATH=”$HOME/.tfenv/bin:$PATH”
3) source /root/.bash_profile
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Using “tfenv” to install/uninstall and manage different Terraform versions:
1) Install a specific version of Terraform
Syntax: tfenv install [version]
Example: tfenv install 0.12.30
2) List all Terraform versions installed
Syntax: tfenv list
3) List all installable Terraform versions
Syntax: tfenv list-remote
4) Use a specific Terraform version
Syntax: tfenv use [version]
Example: tfenv use 0.12.30
5) Uninstall a specific Terraform version
Syntax: tfenv uninstall [version]
Example: tfenv uninstall 0.11.14
NOTE:
In case, if you have encountered a situation where you ran the command for example, “tfenv use 0.11.15“, but the terraform version is NOT showing up as “0.11.15“, especially if you are running the “tfenv use” command from inside a directory that have a .tf file (Ex: version.tf) with the terraform constraint is included in it as shown below,
The solution for this is to just reinstall “tfenv” again and it worked for me.