aespinosa

curl --silent http://nixos.org/nix/install | sed 's,https://nixos.org,http://proxy.dev:3142/nixos.org,' | bash

aespinosa

with import <nixpkgs> {};

let 
niximage = dockerTools.buildImage {
  name = "nix";
  tag = "1.11.2";
  contents = [ nix cacert bash ];
};
nixpkgs = import /nix/store/xxxxx-nixpkgs.drv;

aespinosa

       Recipe: chef-server::default
         * ruby_block[ensure node can resolve API FQDN] action run (skipped due to not_if)
         * chef_ingredient[chef-server] action install
         Recipe: <Dynamically Defined Resource>
           * chef_gem[mixlib-install] action install (up to date)
           * ruby_block[stop chef run] action nothing (skipped due to action :nothing)
           * apt_package[chef-server] action install (up to date)
            (up to date)
       Recipe: chef-server::default
         * file[/tmp/kitchen/cache/chef-server-core.firstrun] action create (up to date)

aespinosa

error: while evaluating the attribute ‘nativeBuildInputs’ of the derivation ‘haskell-environment’ at /home/user/Documents/website/default.nix:4:3:
while evaluating ‘ghcWithPackages’ at /home/user/nixpkgs/pkgs/development/haskell-modules/default.nix:60:27, called from /home/user/Documents/website/default.nix:6:6:
while evaluating ‘withPackages’ at /home/user/nixpkgs/pkgs/development/haskell-modules/default.nix:49:22, called from /home/user/nixpkgs/pkgs/development/haskell-modules/default.nix:60:39:
while evaluating ‘callPackage’ at /home/user/nixpkgs/pkgs/development/haskell-modules/default.nix:47:26, called from /home/user/nixpkgs/pkgs/development/haskell-modules/default.nix:49:32:
while evaluating ‘callPackageWithScope’ at /home/user/nixpkgs/pkgs/development/haskell-modules/default.nix:41:42, called from /home/user/nixpkgs/pkgs/development/haskell-modules/default.nix:47:32:
while evaluating ‘callPackageWith’ at /home/user/nixpkgs/lib/customisation.nix:93:35, called from /home/user/nixpkgs/pkgs/development/ha

aespinosa

Deepening DevOps with Math

DevOps is a young but fast evolving discipline. Like other young practices, the community may still be discovering itself. As more people learn from their experience or incorporate experiences from other backgrounds, DevOps continues to mature.

DevOpsDays is one of those events where the DevOps community gathers together and share experiences. This year, there's a lot of topics where people start stepping back and build a model around the practice of DevOps. There were a lot of DevOps talks that started using math to describe the practice this year.

aespinosa

with import <nixpkgs> {};


stdenv.mkDerivation {
  name = "cpu-app";
  enableSharedExecutables = false;
  buildInputs = [
    (haskellPackages.ghcWithPackages (p: [p.yesod ]))
  ];
}

aespinosa

with import <nixpkgs> {};


stdenv.mkDerivation {
  name = "cpu-app";
  enableSharedExecutables = false;
  buildInputs = [
    (haskellPackages.ghcWithPackages (p: [p.yesod ]))
  ];

aespinosa

# To build on macOS
# NIX_CURRENT_LOAD=`pwd` NIX_REMOTE_SYSTEMS=`pwd`/remotes.conf \
# NIX_BUILD_HOOK=$HOME/.nix-profile/libexec/nix/build-remote.pl \
# nix-build  --argstr system x86_64-linux
#
# remotes.conf
# vagrant@<ip> x86_64-linux $HOME/.vagrant.sh/insecure_private_key 1
{ system ? builtins.currentSystem }:
with import <nixpkgs> {
  system = system;

aespinosa

irb> require 'image_science'
/tmp/ccLnaq6a.o: In function `raise_error': 
Inline_ImageScience_20a6c1167e26493622aab915959b49d1.c:(.text+0xd): undefined reference to `rb_thread_current' 
Inline_ImageScience_20a6c1167e26493622aab915959b49d1.c:(.text+0x18): undefined reference to `rb_thread_local_aref' 
Inline_ImageScience_20a6c1167e26493622aab915959b49d1.c:(.text+0x2f): undefined reference to `rb_thread_current' 
Inline_ImageScience_20a6c1167e26493622aab915959b49d1.c:(.text+0x3f): undefined reference to `rb_thread_local_aset' 
Inline_ImageScience_20a6c1167e26493622aab915959b49d1.c:(.text+0x49): undefined reference to `rb_string_value_cstr' 
Inline_ImageScience_20a6c1167e26493622aab915959b49d1.c:(.text+0x53): undefined reference to `rb_eRuntimeError' 
Inline_ImageScience_20a6c1167e26493622aab915959b49d1.c:(.text+0x64): undefined reference to `rb_raise' 
Inline_ImageScience_20a6c1167e26493622aab915959b49d1.c:(.text+0x6b): undefined reference to `rb_eRuntimeError' 

aespinosa

require 'chef/resource'
require 'kramdown'
require 'minitest/autorun'
DOC = DATA.read
class SomeResource < Chef::Resource
  property :base_properties

  def self.use_version(version)
    if version == '1.6.1'
      load_kube_16