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@enisozgen
enisozgen / ansible-nested-variable.yml
Last active November 4, 2023 10:21
Ansible example which shows how to reach nested variable with dynamic elements
# Example which shows how to reach nested ansible variable which is partially different.
# Run that plabook with ansible-playbook -e "env=test" ansible-nested-variable.yml
---
#
- hosts: localhost
connection : ssh
gather_facts: no
vars:
cidr_blocks:
vpc_production_cidr_block: "10.10.0.0/28"
@Informatic
Informatic / README.md
Last active June 20, 2024 14:31
cloud-init "nocloud" networking setup

cloud-init is absolute cancer. Its code is horrible. It has no documentation at all.

It took me 5 fucking hours to figure out how to properly configure networking on recent cloud-init (Ubuntu 16.04 cloud image) with local datasource.

It's not mentioned anywhere you need to provide dsmode: local. (but only if you need network-config, besides that everything is fine; someone below noted that -m flag does the same thing, good to know) Of course nobody needs documentation for network-config format either. (cloudinit/net/__init__.py is a protip, enjoy the feces dive)

Oh, and by the way - no, it's not possible to provide network-config to uvt-kvm without patching shit.

@mpasternacki
mpasternacki / docker-compile.pl
Last active March 23, 2020 14:05
Perl script to build a Docker image from Dockerfile that creates the image in a single layer, without any intermediate images. Needs JSON CPAN module (available as `libjson-perl` Debian/Ubuntu package). Usage: run the script in the directory that contains a Dockerfile. More details in a blog post: http://3ofcoins.net/2013/09/22/flat-docker-images/
#!/usr/bin/env perl
use feature 'switch';
use strict;
use warnings;
use Data::Dumper;
use File::Basename;
use File::Copy;
use File::Path qw/make_path/;
@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 <jakub@jirutka.cz>.
#
# 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