This Dockerimage is manually created and uploaded:

```
docker build -t registry.gitlab.com/cryptoadvance/specter-desktop/python-bitcoind:v0.20.1 .
```
```
docker push registry.gitlab.com/cryptoadvance/specter-desktop/python-bitcoind:v0.20.1
```
Here the version is v0.20.1 but that's just an example. This folder just explains how the image is created. Which image is USED is specified:

* In the case of tests in pytest.ini in the addopts-line (MIGHT be different in different branches)
* in the case of running 

```
python3 -m cryptoadvance.specter bitcoind #it's using "latest"
``` 

but you can override like this:

```
python3 -m cryptoadvance.specter bitcoind --docker-tag v0.19.1
```