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##### SUMMARY
https://github.com/ansible/ansible/blob/devel/lib/ansible/modules/cloud/misc/terraform.py#L353 expects the plan_file to be a filename not a path to a file.inside of project_path. Works with relative paths but not with absolute paths. Lucky for me I use a path inside project_path but it worked before with paths outside too.

##### ISSUE TYPE
- Bug Report

##### COMPONENT NAME
<!--- Write the short name of the module, plugin, task or feature below, use your best guess if unsure -->
terraform
##### ANSIBLE VERSION
<!--- Paste verbatim output from "ansible --version" between quotes -->
```paste below
ansible 2.8.1
  config file = /home/adam/.ansible.cfg
  configured module search path = ['/home/adam/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
  ansible python module location = /home/adam/.local/lib/python3.6/site-packages/ansible
  executable location = /home/adam/.local/bin/ansible
  python version = 3.6.8 (default, Jan 14 2019, 11:02:34) [GCC 8.0.1 20180414 (experimental) [trunk revision 259383]]
```

##### CONFIGURATION
<!--- Paste verbatim output from "ansible-config dump --only-changed" between quotes -->
```paste below

```

##### OS / ENVIRONMENT
<!--- Provide all relevant information below, e.g. target OS versions, network device firmware, etc. -->


##### STEPS TO REPRODUCE
<!--- Describe exactly how to reproduce the problem, using a minimal test-case -->

<!--- Paste example playbooks or commands between quotes below -->
```yaml
use absolute path for plan_file 
```

<!--- HINT: You can paste gist.github.com links for larger files -->

##### EXPECTED RESULTS
<!--- Describe what you expected to happen when running the steps above -->
uses the filepath provided

##### ACTUAL RESULTS
<!--- Describe what actually happened. If possible run with extra verbosity (-vvvv) -->

<!--- Paste verbatim command output between quotes -->
```paste below
TASK [run terraform apply] ***************************************************************************************************************************************************************************************************************************************************************
fatal: [localhost]: FAILED! => {"changed": false, "msg": "Could not find plan_file \"/home/.../plan.tfplan\", check the path and try again."}
```

rc, out, err = module.run_command(command, cwd=project_path)
        
        if '0 added, 0 changed' not in out and not state == "absent" or '0 destroyed' not in out:
            changed = True
        if rc != 0:
            module.fail_json(
                msg="Failure when executing Terraform command. Exited {0}.\nstdout: {1}\nstderr: {2}".format(rc, out, err),
                command=' '.join(command)
            )
    outputs_command = [command[0], 'output', '-no-color', '-json'] + _state_args(state_file)
    rc, outputs_text, outputs_err = module.run_command(outputs_command, cwd=project_path)
    if rc == 1:
        module.warn("Could not get Terraform outputs. This usually means none have been defined.\nstdout: {0}\nstderr: {1}".format(outputs_text, outputs_err))
        outputs = {}
    elif rc != 0:
        module.fail_json(
            msg="Failure when getting Terraform outputs. "
                "Exited {0}.\nstdout: {1}\nstderr: {2}".format(rc, outputs_text, outputs_err),
            command=' '.join(outputs_command))
    else:
        outputs = json.loads(outputs_text)
    
    if workspace_ctx["current"] != workspace:
        select_workspace(command[0], project_path, workspace_ctx["current"])
    if state == 'absent' and workspace != 'default' and purge_workspace is True:
        remove_workspace(command[0], project_path, workspace)
    module.exit_json(changed=changed, state=state, workspace=workspace, outputs=outputs, stdout=out, stderr=err, command=' '.join(command))
if __name__ == '__main__':
    main()