gregolsky / whales-names

Simplistic solution of "Why can't I reach my docker containers by name?" problem. Continuously update hosts file (/etc/hosts) with docker container names and aliases and watch for changes.

Whales' names 🐋

Simplistic solution of why can't I reach my docker containers by name? problem. Continuously update hosts file (/etc/hosts) with docker container names and aliases and watch for changes.

Installation 🔨

$ npm install -g whales-names

Usage 📘

$ whales-names
Synchronizing docker container hostnames in hosts file.

Afterwards you are going to see a new section in the end of your /etc/hosts file:

...

# whales-names begin
172.21.88.220	dfbf5d96df3e node1 
172.21.94.104	79468a158d1e node2
172.21.89.244	0c9b251458f4 db
# whales-names end

You can end it with simple Ctrl+C. Errors, if any are going to be printed on the console.

Elevated privileges ⚠️

Due to file permissions of /etc/hosts file you need to use elevated privileges (run as Administrator, if you will) for running it.

Rae: You like whales?

Jesse: I like him.

Rae: Well, he doesn't like anybody, so stay away from him. You see, Willy's a case. A very special case.

Jesse: So? Who isn't?

Free Willy (1993) 🐳

whales-names's Issues

SyntaxError: Unexpected token function

With the latest 0.1.4 version I get a "SyntaxError: Unexpected token function" error message when running whales-names. I don't get this error with version 0.1.3.

Detailed information about the error:

C:\Users\user01\AppData\Roaming\nvm\v6.17.1\node_modules\whales-names\src\index.js:10
(async function main() {
       ^^^^^^^^

SyntaxError: Unexpected token function
    at createScript (vm.js:56:10)
    at Object.runInThisContext (vm.js:97:10)
    at Module._compile (module.js:549:28)
    at Object.Module._extensions..js (module.js:586:10)
    at Module.load (module.js:494:32)
    at tryModuleLoad (module.js:453:12)
    at Function.Module._load (module.js:445:3)
    at Module.require (module.js:504:17)
    at require (internal/module.js:20:19)
    at Object.<anonymous> (C:\Users\cheem\AppData\Roaming\nvm\v6.17.1\node_modules\whales-names\bin\whales-names:2:1)

Whales-names is losing the original hostnames

Hi,
When I'm using the whales-names sometimes it loses all the content of the hosts file and replaces it exclusively with the Docker hostnames.

Did anyone had same issue?
Don't have exact steps to reproduce but it's really annoying to be happening.

Cheers,
Jack Spektor