# 2. Testing VM in Docker

If you simply want to validate the Docker image is working as expected before converting it to a Golem VM, please locate it in the flan-docker project and run the following instructions:

### Manually send params to the VM

For this, we just need to remove the comments from the Dockerfile:

```bash
COPY params.json /golem/work/params.json
```

Now we save, and continue with the process:

```bash
# build the docker image and remove any previous version
docker build --rm -t nestorbonilla/flan-image .

# access the docker image
docker run -it nestorbonilla/flan-image bash

# run the flan bash file
bash run_flan.sh
```

And ready, we can verify the Docker image is working properly going inside the VM to the **/golem/output** directory and we will see our output files that should be downloaded.

```bash
# go to the output folder
cd /golem/output

# list the files
ls -al
```

You will now see the **baci\_plot.png** generated image from the parameters.