https://github.com/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.
https://github.com/gregolsky/whales-names

containers dns docker hostname hostnames hosts

Last synced: about 1 year ago
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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.

• Host: GitHub
• URL: https://github.com/gregolsky/whales-names
• Owner: gregolsky
• License: mit
• Created: 2017-10-13T21:46:30.000Z (over 8 years ago)
• Default Branch: master
• Last Pushed: 2023-03-02T21:27:34.000Z (over 3 years ago)
• Last Synced: 2025-03-20T02:53:00.661Z (about 1 year ago)
• Topics: containers, dns, docker, hostname, hostnames, hosts
• Language: JavaScript
• Homepage:
• Size: 610 KB
• Stars: 9
• Watchers: 1
• Forks: 4
• Open Issues: 4
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# 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.

[![npm version](https://badge.fury.io/js/whales-names.svg)](https://badge.fury.io/js/whales-names) [![Known Vulnerabilities](https://snyk.io/test/github/gregolsky/whales-names/badge.svg)](https://snyk.io/test/github/gregolsky/whales-names) [![Build Status](https://travis-ci.org/gregolsky/whales-names.svg?branch=master)](https://travis-ci.org/gregolsky/whales-names)

## 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) 🐳