austinschwartz / dockerex

Dockerex

Dockerex is a lightweight Docker Remote API Client for Elixir that supports SSL connection to a Docker Host or a Docker Swarm manager.

Dockerex is tested against latest Docker Remote API v1.24.

Installation

The package can be installed as:

1. Add dockerex to your list of dependencies in mix.exs:

```elixir
def deps do
  [{:dockerex, "~> 0.1.0"}]
end
```

2. Ensure dockerex is started before your application:

```elixir
def application do
  [applications: [:dockerex]]
end
```

3. Config your docker host in config.exs

config :dockerex,
host: "https://10.10.10.1:2376/",
options: [
  ssl:  [
    {:certfile, "/path/to/your/cert.pem"},
    {:keyfile, "/path/to/your/key.pem"}
  ]
]

You may also establish a connection to the docker engine over a unix socket. To do this, set the host variable in your config to "http+unix://PATH/". Note that PATH has to be URI-encoded, i.e. the default socket path would be %2Fvar%2Frun%2Fdocker.sock.

Usage

Dockerex is a lightweight client, which means you need to specify the endpoint and original docker params in a map format. Before making any requests, you have to start the HTTP client by calling HTTPoison.start.

Some examples:

    result = Dockerex.Client.post("containers/create", %{"Image": "nginx",
                                                         "Tty": true,
                                                         "HostConfig": %{"RestartPolicy": %{ "Name": "always"}},
                                                         "Cmd": ["start.sh"]})

    cid = result["Id"]
    Dockerex.Client.post("containers/#{cid}/start")
    
    Dockerex.Client.post("containers/#{cid}/stop")
    
    Dockerex.Client.get("containers/#{cid}/logs?stderr=1&stdout=1&timestamps=0&since=#{DateTime.to_unix(DateTime.utc_now) - 5}")
    
    Dockerex.Client.delete("containers/#{cid}")