embark-docker/README.md

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# Embark for Docker
## Quick start
In a Bash shell:
``` shell
source <(curl 'https://raw.githubusercontent.com/embark-framework/embark-docker/master/run.sh')
run_embark demo
cd embark_demo
run_embark
```
With overrides:
``` shell
export EMBARK_DOCKER_EXTRA_RUN_OPTS='--rm'
export EMBARK_DOCKER_IMAGE=statusim/embark
export EMBARK_DOCKER_TAG=custom
export EMBARK_DOCKERFILE='https://github.com/embark-framework/embark-docker.git#some/branch'
export EMBARK_VERSION='embark-framework/embark#features/branch'
export NODE_TAG=10.7.0
export RUNNER='https://raw.githubusercontent.com/embark-framework/embark-docker/some/branch/run.sh'
docker build \
--build-arg EMBARK_VERSION=$EMBARK_VERSION \
--build-arg NODE_TAG=$NODE_TAG \
-t $EMBARK_DOCKER_IMAGE:$EMBARK_DOCKER_TAG \
$EMBARK_DOCKERFILE
source <(curl $RUNNER)
run_embark demo
cd embark_demo
run_embark
```
Review the [Dockerfile](https://github.com/embark-framework/embark-docker/blob/master/Dockerfile) and [run.sh](https://github.com/embark-framework/embark-docker/blob/master/run.sh#L66-L70) for all possible overrides.
### Shortcuts
These are equivlent:
``` shell
run_embark
```
``` shell
run_embark run
```
``` shell
run_embark embark run
```
The following are also equivalent:
``` shell
run_embark demo
```
``` shell
run_embark embark demo
```
The same is true for the rest of the `embark` commands. To see the full list:
``` shell
run_embark --help
```
### Compound commands
A single command with options can be supplied directly:
``` shell
run_embark bash
```
``` shell
run_embark ps -ef
```
Compound commands should be passed to `bash -[i]c`:
``` shell
run_embark bash -c 'exec bash << "SCRIPT"
simple_nodeenv 10.7.0 my_node
node --version
echo $(which node)
npm i -g http-server
exec http-server -p 10000
SCRIPT
'
```
When executing compound commands via `docer exec` in a running embark
container, `su-exec` and `bash -ic` can be used together:
``` shell
docker exec -it <container-id> su-exec embark \
bash -ic 'exec bash << "SCRIPT"
simple_nodeenv 10.7.0 my_other_node
npm i -g http-server
exec http-server -p 10001
SCRIPT
'
```
Alternatively, to go non-interactive, manually source the embark user's
`.bash_env`:
``` shell
docker exec -it <container-id> su-exec embark \
bash -c 'exec bash << "SCRIPT"
. ~/.bash_env
simple_nodeenv 10.7.0 more_nodez
npm i -g http-server
exec http-server -p 10002
SCRIPT
'
```
## 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
```