embark-docker/README.md

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# Embark for Docker
## Updating versions
* Open `Dockerfile`
* On the `ARG` directives, update necessary versions.
## Building
Building requires Docker to be installed on your local machine.
### Scripted
If you have Ruby installed in your system, run:
```
$ ruby script/build
```
To release, add `--release` as a parameter of the build script.
### Manually
Building and releasing manually isn't too hard either, but there are a couple steps.
#### Tags
To facilitate the images being found, we tag them with the following rules (as an example, the `3.1.5` version will be used.)
- Tag with `statusim/embark:latest` if `3.1.5` is the latest version.
- Tag with `statusim/embark:3.1.5`
- Tag with `statusim/embark:3.1` if `3.1.5` is the highest patch level on `3.1`
- Tag with `statusim/embark:3` if `3.1.5` is the highest minor and patch level on `3`
#### Generating the image
To generate the image, run:
```
docker build . -t statusim/embark:<version> [...tags]
```
## Releasing
Releasing requires that you're authenticated to Docker Hub. To do so, run:
```
$ docker login
```
### Scripted
If you have Ruby installed in your system, run:
```
$ ruby script/build --release
```
### Manual
Pushing the tags manually implies that the image has been previously built. To push your local images, run:
```
docker push statusim/embark:version
```