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@developerinlondon
developerinlondon / docker.md
Last active April 11, 2025 18:01
Docker saving and loading images

Here's how to save and load docker images:

Example scenario: To save a docker image from a docker repository and save it as a tar file locally.

  1. Save the image as a tarball

docker save repositoryname:tag > repotag.tar

  1. Zip the image
@samwize
samwize / mocha-guide-to-testing.js
Created February 8, 2014 05:53
Explain Mocha's testing framework - describe(), it() and before()/etc hooks
// # Mocha Guide to Testing
// Objective is to explain describe(), it(), and before()/etc hooks
// 1. `describe()` is merely for grouping, which you can nest as deep
// 2. `it()` is a test case
// 3. `before()`, `beforeEach()`, `after()`, `afterEach()` are hooks to run
// before/after first/each it() or describe().
//
// Which means, `before()` is run before first it()/describe()
@jirutka
jirutka / rules-both.iptables
Created September 18, 2012 12:42
Basic iptables template for ordinary servers (both IPv4 and IPv6)
###############################################################################
# The MIT License
#
# Copyright 2012-2014 Jakub Jirutka <[email protected]>.
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is