appherd

CLI to start & watch a bunch of local app servers:

• Scans for open ports and passes them to the app servers through the PORT environment variable
• Will restart a server if the process dies
• Opens a HTTP endpoint which returns server to port mappings for service discovery
• Each app's output goes straight to stdout/stderr, therefore each app is responsible for identifying itself in its loglines

Usage

The directory where you run appherd must have a configuration file called appherd.json:

{
  "port": 7000,
  "apps": {
    "server1": {
      "command": "node",
      "args": ["server1/index.js"]
    },
    "server2": {
      "command": "node",
      "args": ["server2/index.js"]
    }
  }
}

Once that's set up, run appherd.

Open http://localhost:7000. Given port 7001 and 7002 are free, you should get the following JSON response with the above configuration:

{
  "server1": 7001,
  "server2": 7002
}