1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
|
#+TITLE: Practical, verifiable software freedom with GuixSD
#+AUTHOR: David Thompson
#+EMAIL: dthompson2@worcester.edu
#+DATE: Sunday, March 25th, 2018
#+DESCRIPTION:
#+KEYWORDS:
#+LANGUAGE: en
#+OPTIONS: H:1 num:t toc:nil \n:nil @:t ::t |:t ^:t -:t f:t *:t <:t
#+OPTIONS: TeX:t LaTeX:t skip:nil d:nil todo:t pri:nil tags:not-in-toc
#+INFOJS_OPT: view:nil toc:nil ltoc:t mouse:underline buttons:0 path:http://orgmode.org/org-info.js
#+EXPORT_SELECT_TAGS: export
#+EXPORT_EXCLUDE_TAGS: noexport
#+LINK_UP:
#+LINK_HOME:
#+startup: beamer
#+LaTeX_CLASS: beamer
#+LaTeX_CLASS_OPTIONS: [bigger]
#+COLUMNS: %40ITEM %10BEAMER_env(Env) %9BEAMER_envargs(Env Args) %4BEAMER_col(Col) %10BEAMER_extra(Extra)
#+LATEX_HEADER: \beamertemplatenavigationsymbolsempty
#+BEAMER_THEME: metropolis
* about me
GNU Guix contributor since 2013
GNU Guile user and contributor since 2012
Day job: DevOps (AWS, Ruby)
* the four freedoms
0: The freedom to run the program as you wish, for any purpose
* the four freedoms
1: The freedom to study how the program works, and change it so it
does your computing as you wish
* the four freedoms
2: The freedom to redistribute copies so you can help your neighbor
* the four freedoms
3: The freedom to distribute copies of your modified versions to
others
* the four freedoms
a wonderful set of rights, but often *difficult to exercise in
practice*
* common issues
figuring out how to view the exact source for a running program is
tricky
- ??
* common issues
building from source is difficult or sometimes impossible
- non-standard build system
- build scripts make assumptions that aren't true for your system
* common issues
sharing source or binaries has many pitfalls
- dependency hell
- incompatible libraries between systems
- high barrier to entry for common package managers
* common issues
trying out new stuff can lead to sadness
- ever upgrade your distro, reboot, and get an unusable system?
* freedom: embedded
GuixSD removes many of the common barriers that prevent users from
exercising their four freedoms
* what is guixsd?
<logo>
fully-free GNU/Linux distribution with an advanced package
manager and system upgrade mechanism
* what is guix?
GuixSD's package manager
“functional” package manager
atomic updates and rollbacks
* unprivileged package management
Users can build and install software *without root privileges*
tired: =sudo apt install emacs=
wired: =guix package -i emacs=
* unprivileged package management
Each user may have one or more “profiles”, a union of many packages.
Use cases:
- Alyssa and Ben use different versions of Emacs
- Alyssa hacks on 2 Ruby projects that require different versions
* experiment without fear
=guix package --upgrade emacs=
oh no, the new version of Emacs is broken!
=guix package --roll-back=
* experiment without fear
=guix system reconfigure=
oh no, the latest GuixSD updates broke my system!
<image of grub menu with older generations?>
* inspecting source code
quickly grab the source code for a package
=guix build --source gimp=
* inspecting dependency graph
=guix graph=
<small dependency graph image>
* sharing system configurations
<minimal code example here>
* sharing packages
=guix build -L ~/daves-packages foo=
<minimal package example>
* sharing development environments
#+BEGIN_SRC scheme
(use-modules (guix profiles)
(gnu packages base)
(gnu packages guile))
(packages->manifest
(list gnu-make
guile-2.2
guile-syntax-highlight
haunt))
#+END_SRC
use it:
=guix environment --manifest=guix.scm=
* sharing binaries
start a server to share your builds:
#+BEGIN_SRC sh
guix publish
#+END_SRC
have a friend download them:
#+BEGIN_SRC sh
guix build \
--substitute-urls=http://guix.example.com:8080 \
hello
#+END_SRC
* reproducible builds
reproducible builds produce *bit-identical binaries* when performed
multiple times under the same conditions.
requires fixing issues in upstream build systems that are
nondeterministic.
* reproducible builds
this is a *cross-distro effort*, but Guix facilitates
reproducibility more than others
see Chris Lamb's talk /You think you're not a target? A tale of
three developers.../ from yesterday for more perspective
* reproducible builds
is this build reproducible on my machine?
=guix build --rounds=3 hello=
* challenge authority
is this build reproducible on many machines?
is this build compromised?
=guix challenge=
* customize packages
show me how Ruby is built:
#+BEGIN_SRC sh
export EDITOR=emacs
guix edit ruby
#+END_SRC
* customize packages
let's make some changes!
#+BEGIN_SRC sh
git clone https://git.savannah.gnu.org/git/guix.git
cd guix
guix environment guix
./configure
make
guix build ruby
#+END_SRC
* interoperate with other systems
need a Docker image?
=guix pack --format=docker guile emacs geiser=
\tiny(see /Solving the deployment crisis with GNU Guix/ from
LibrePlanet 2016 for reasons why Docker may not be so great)
* extending guix
GuixSD is essentially a big Scheme library
easy to write new tools that use the exact same APIs that the core
Guix tools use
* literally: embedded
GuixSD now runs on the Beaglebone Black single-board computer!
* the freedom to contribute
GNU Guix is a welcoming community:
- we have a *code of conduct* and *enforce* it
- we have started seeking new contributors via *Outreachy*
- we participate in *Google Summer of Code* every year
- oh, and no copyright assignment (in case you were wondering)
join us!
* thanks!
\begin{center}
docs, past talks, source code, mailing list/IRC info, etc.:
\huge{\textbf{https://gnu.org/s/guix}}
\end{center}
* credits
Copyright 2018 David Thompson
Licensed under Creative Commons Attribution Share-Alike 4.0
|
