This is a pre-production deployment of Warehouse. Changes made here affect the production instance of PyPI (pypi.python.org).
Help us improve Python packaging - Donate today!

A simple non professional Dockerfile linter

Project Description
# whale-linter

[![PyPI](https://img.shields.io/pypi/v/whalelinter.svg?maxAge=2592000?style=flat-square)](https://pypi.python.org/pypi/whalelinter)
[![PyPI](https://img.shields.io/pypi/dm/whalelinter.svg?maxAge=2592000?style=flat-square)](https://pypi.python.org/pypi/whalelinter)
[![PyPI](https://img.shields.io/pypi/l/whalelinter.svg?maxAge=2592000?style=flat-square)](https://raw.githubusercontent.com/jeromepin/whale-linter/master/LICENSE)


**whale-linter** is a cross-platform *Dockerfile* linter.

![alt text](https://raw.githubusercontent.com/jeromepin/whale-linter/master/whale-linter.png)


## Installation

#### Tested on

* Python 3.2, 3.4, 3.5
* Debian wheezy, jessie, stretch

### PyPI : The easy way

```bash
pip install whalelinter
```

and to upgrade :

```bash
pip install --upgrade whalelinter
```


## Usage

```bash
usage: whale-linter [-h] [-i RULE] [-v] DOCKERFILE

A simple non professional Dockerfile linter

positional arguments:
DOCKERFILE The Dockerfile to lint

optional arguments:
-h, --help Show this help message and exit
-i, --ignore RULE Rule to ignore
-v, --version Print version
```


## Rules

Here is the list of all rules checked by **whale-linter**.

Do not hesitate to [create a new issue](https://github.com/jeromepin/whale-linter/issues/new) if you have an idea for a new/incomplete rule.


Rules are ordered as follows :

* *WL1xxx* : Critical errors

* *WL2xxx* : Bad practices

* *WL3xxx* : Enhancements


| Rule | Corresponding message (as template given in config.json) |
| ------ | ----------- |
| [WL1000](https://github.com/jeromepin/whale-linter/wiki/WL1000) | '{token}' is mandatory |
| [WL1001](https://github.com/jeromepin/whale-linter/wiki/WL1001) | '{token}' must be present only once |
| [WL2000](https://github.com/jeromepin/whale-linter/wiki/WL2000) | A tag should be specified for the '{image}' image |
| [WL2001](https://github.com/jeromepin/whale-linter/wiki/WL2001) | Using the 'latest' tag isn't wise, as it won't always be a reference to the same version |
| [WL2002](https://github.com/jeromepin/whale-linter/wiki/WL2002) | Use 'WORKDIR' to change directory |
| [WL2003](https://github.com/jeromepin/whale-linter/wiki/WL2003) | Some shell commands like '{command}' are pointless in containers |
| [WL2004](https://github.com/jeromepin/whale-linter/wiki/WL2004) | 'WORKDIR' path should be absolute |
| [WL2005](https://github.com/jeromepin/whale-linter/wiki/WL2005) | 'EXPOSE' port ({port}) must be in 1-65535 range |
| [WL2006](https://github.com/jeromepin/whale-linter/wiki/WL2006) | Prefer 'COPY' over 'ADD' for adding files and directories to a container. 'ADD' sounds to much magic |
| [WL2007](https://github.com/jeromepin/whale-linter/wiki/WL2007) | Be careful changing to root user |
| [WL2008](https://github.com/jeromepin/whale-linter/wiki/WL2008) | Avoid running 'apt-get upgrade' in container. Move to a newer image instead |
| [WL2009](https://github.com/jeromepin/whale-linter/wiki/WL2009) | Missing '--no-install-recommends' in your '{command}' command |
| [WL2010](https://github.com/jeromepin/whale-linter/wiki/WL2010) | Missing '-y' in your '{command}' command |
| [WL2011](https://github.com/jeromepin/whale-linter/wiki/WL2011) | Avoid running 'apt-get dist-upgrade' in container. Move to a newer image instead |
| [WL2012](https://github.com/jeromepin/whale-linter/wiki/WL2012) | There is two consecutive 'RUN'. Consider chaining them with '\' and '&&' |
| [WL3000](https://github.com/jeromepin/whale-linter/wiki/WL3000) | Consider removing APT cache : 'rm -rf /var/lib/apt/lists/*' |
| [WL3001](https://github.com/jeromepin/whale-linter/wiki/WL3001) | Using '{token}' is recommended |
| [WL3002](https://github.com/jeromepin/whale-linter/wiki/WL3002) | Consider sorting APT packages for better reading |
| [WL3003](https://github.com/jeromepin/whale-linter/wiki/WL3003) | A version should be specified for the package '{package}' in order to improve immutability |


## Author

Jerome Pin ([@jerome_pin](https://twitter.com/jerome_pin)) <<jerome@jeromepin.fr>>


## Licence

MIT. See [LICENCE](https://raw.githubusercontent.com/jeromepin/whale-linter/master/LICENSE) file.
Release History

Release History

This version
History Node

0.0.3

History Node

0.0.2

History Node

0.0.1

Download Files

Download Files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
whalelinter-0.0.3.tar.gz (8.9 kB) Copy SHA256 Checksum SHA256 Source Jun 29, 2016

Supported By

WebFaction WebFaction Technical Writing Elastic Elastic Search Pingdom Pingdom Monitoring Dyn Dyn DNS Sentry Sentry Error Logging CloudAMQP CloudAMQP RabbitMQ Heroku Heroku PaaS Kabu Creative Kabu Creative UX & Design Fastly Fastly CDN DigiCert DigiCert EV Certificate Rackspace Rackspace Cloud Servers DreamHost DreamHost Log Hosting