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https://github.com/drnic/etcd-service-buildpack


https://github.com/drnic/etcd-service-buildpack

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README 

        
# Buildpack to run Etcd Server



This project is primarily a buildpack to run a Etcd Server; but also includes an internal asset-buildpack for compiling Etcd source into executables.



Currently the buildpack includes etcd 0.3.0.



## Demo Usage



Create a new project with a `etcd-version` file containing either `0.3.0`:



```

mkdir -p /tmp/`whoami`-etcd-service

cd /tmp/`whoami`-etcd-service

echo "0.3.0" > etcd-version

```



Now deploy to your favourite buildpack-supporting PaaS.



For Cloud Foundry:



```

cf push `whoami`-etcd-service -b https://github.com/drnic/etcd-service-buildpack.git

```



And later delete with:



```

cf delete `whoami`-etcd-service

```



For Heroku:



```

git init

git add .

git commit -m "v0.3.0 etcd service"

heroku create `whoami`-etcd-service -b https://github.com/drnic/etcd-service-buildpack.git

git push heroku master

```



And later destroy with:



```

heroku apps:destroy `whoami`-etcd-service --confirm `whoami`-etcd-service

```



## Development



There are two stages of development:



* Adding & compiling new versions of Etcd

* Developing the buildpack (`bin/compile`, `bin/detect`, `bin/release`)



For each new version of Etcd supported, the `config/slugs` file is updated with the accessible URL of the pre-compiled version of etcd.



### Adding & compiling new versions of Etcd



Extend the `bin/fetch_assets` script to fetch the new etcd src asset. Then run it to fetch it (and all other etcd versions):



```

./bin/fetch_assets

```



Now modify `etcd-compiler/bin/compile` for the new version Etcd (in future this will be beautifully automated) in the blobs folder.



To create the pre-compiled slugs:



```

gem install anvil-cli

anvil build . -b etcd-compiler -p

```



The last line is the published slug URL.



Now add this into `config/slugs` so buildpack users will have access to the pre-compiled version of Etcd.



### Developing the buildpack



You can also use `anvil` to do some basic development/test of the buildpack itself (the files `bin/compile`, `bin/detect`, `bin/release`).



```

anvil build testapp -b . -p

...

https://api.anvilworks.org/slugs/93f4b978-6187-4ce4-affa-64ffea110c14.tgz

```



The last line will be the slug URL. If you download and unpack it, you will see something like:



```

$ tree

.

├── Procfile

├── bin

│   ├── configure-and-run

│   ├── fetch_blobs

│   ├── etcd-benchmark

│   ├── etcd-check-aof

│   ├── etcd-check-dump

│   ├── etcd-cli

│   └── etcd-server

├── etc

│   └── etcd.conf

├── etcd-compiler

│   └── bin

│       ├── compile

│       └── detect

└── etcd-version

```



The `etcd-version` file comes from the built-in `testapp` used above. Everything else is included from the buildpack. `bin/etcd-server` contains the compiled Etcd server.



### Run locally



If you're not in Ubuntu 10.04, the use Vagrant:



```

vagrant box add lucid64 http://files.vagrantup.com/lucid64.box

vagrant init lucid64

vagrant up

vagrant ssh

```



Inside vagrant:



```

mkdir /tmp/app

cd /tmp/app

wget https://api.anvilworks.org/slugs/93f4b978-6187-4ce4-affa-64ffea110c14.tgz

tar xfz 93f4b978-6187-4ce4-affa-64ffea110c14.tgz

cat Procfile

```



Either run the process with foreman/goreman or try manually:



```

export PORT=5656

bin/etcd -name etcd-test -addr 0.0.0.0:$PORT -peer-addr 0.0.0.0:7001 -data-dir data -snapshot true

```



## Credits



The buildpack portion was based on 

Based on https://github.com/dpiddy/heroku-buildpack-etcd