/
operations_iwc_d4.html
424 lines (375 loc) · 17.2 KB
/
operations_iwc_d4.html
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
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
<!doctype html>
<html lang="en">
<style>
.row{
display: flex;
}
.column{
flex: 1;
}
</style>
<head>
<meta charset="utf-8">
<title>Operational Excellence</title>
<meta name="description" content="A set of ideas around r-thinking and re-shaping operations">
<meta name="author" content="Martin Sumner">
<meta name="apple-mobile-web-app-capable" content="yes" />
<meta name="apple-mobile-web-app-status-bar-style" content="black-translucent" />
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no, minimal-ui">
<link rel="stylesheet" href="css/reveal.css">
<link rel="stylesheet" href="css/theme/black.css" id="theme">
<!-- Code syntax highlighting -->
<link rel="stylesheet" href="lib/css/zenburn.css">
<!-- Printing and PDF exports -->
<script>
var link = document.createElement( 'link' );
link.rel = 'stylesheet';
link.type = 'text/css';
link.href = window.location.search.match( /print-pdf/gi ) ? 'css/print/pdf.css' : 'css/print/paper.css';
document.getElementsByTagName( 'head' )[0].appendChild( link );
</script>
<!--[if lt IE 9]>
<script src="lib/js/html5shiv.js"></script>
<![endif]-->
</head>
<body>
<div class="reveal">
<!-- Any section element inside of this container is displayed as a slide -->
<div class="slides">
<section>
<h2>Operational Excellence - Day 4</h2>
</section>
<section>
<h2>Today we will cover ....</h2>
<p align="left">Day 3 Review</p>
<p align="left">Bibliography</p>
<p align="left">Patterns</p>
<p align="left">Example Model</p>
<p></p>
<p><small>http://martinsumner.github.io/presentations/operations_iwc_d4.html#/</small></p>
</section>
<section>
<h2>On The First Day ....</h2>
<p align="left">Parallels from Agile for Improvement</p>
<p align="left">Terminology is simplistic</p>
<p align="left">Needs are user-driven and evolving</p>
<p align="left">Measuring flow is important</p>
<p align="left">Adaptability to confusing and unexpected events</p>
<p align="left">Unavailability - process, organisation and bias</p>
<p align="left">Direct communication with users</p>
<p></p>
<p><small>http://martinsumner.github.io/presentations/operations_iwc_d1.html#/</small></p>
</section>
<section>
<h2>On The Second Day ....</h2>
<p align="left">Human behaviour and Organisation</p>
<p align="left">Confidence and Perception</p>
<p align="left">Service introduction</p>
<p align="left">Technical debt</p>
<p align="left">Feedback loops</p>
<p></p>
<p><small>http://martinsumner.github.io/presentations/operations_iwc_d2.html#/</small></p>
</section>
<section>
<h2>On The Third Day ....</h2>
<p align="left">Human reaction to observations</p>
<p align="left">What makes a good dashboard</p>
<p align="left">Obervability patterns</p>
<p></p>
<p><small>http://martinsumner.github.io/presentations/operations_iwc_d3.html#/</small></p>
</section>
<section>
<h2>Maps</h2>
<img width="700" height="400" data-src="images/XKCD_Map.png" alt="XKCD" cite="https://xkcd.com/1138/">
</section>
<section>
<h2>Maps</h2>
<img width="700" height="400" data-src="images/GoodMap.png" alt="FiveThirtyEight" cite="https://projects.fivethirtyeight.com/2016-election-forecast/">
</section>
<section>
<h2>Maps</h2>
<img width="700" height="300" data-src="images/BadMap.png" alt="PHE" cite="https://www.gov.uk/government/publications/covid-19-track-coronavirus-cases">
</section>
<section data-background="#A3C2FF">
<h2>Bibliography</h2>
<div class="row">
<div class="column">
<img width="200" height="300" data-src="images/BookMistakes.png">
</div>
<div class="column">
<img width="200" height="300" data-src="images/BookWetware.png">
</div>
<div class="column">
<img width="200" height="300" data-src="images/BookRisk.png">
</div>
</div>
</section>
<section data-background="#A3C2FF">
<h2>Bibliography</h2>
<div class="row">
<div class="column">
<img width="200" height="300" data-src="images/BookDeming.png">
</div>
<div class="column">
<img width="200" height="300" data-src="images/BookOhno.png">
</div>
<div class="column">
<img width="200" height="300" data-src="images/BookPoppiendeck.png">
</div>
</div>
</section>
<section data-background="#A3C2FF">
<h2>Bibliography</h2>
<div class="row">
<div class="column">
<img width="200" height="300" data-src="images/BookNygard.png">
</div>
<div class="column">
<img width="200" height="300" data-src="images/BookScalability.png">
</div>
<div class="column">
<img width="200" height="300" data-src="images/BookErlang.png">
</div>
</div>
</section>
<section data-background="#A3C2FF">
<h2>Bibliography</h2>
<div class="row">
<div class="column">
<img width="200" height="300" data-src="images/BookNormalAccidents.png">
</div>
<div class="column">
<img width="200" height="300" data-src="images/BookHumanError.png">
</div>
<div class="column">
<img width="200" height="300" data-src="images/BookSRE.png">
</div>
</div>
</section>
<section data-background="#A3C2FF">
<h2>What can we do better</h2>
</section>
<section data-background="#A3C2FF">
<h2>Build</h2>
</section>
<section data-background="#A3C2FF">
<h2>Relative non-functional priorities</h2>
<img width="600" height="400" data-src="images/AmblerRequirements.png" alt="CHAOS survery" cite="http://www.agilemodeling.com/essays/examiningBRUF.htm">
</section>
<section data-background="#A3C2FF">
<h2>Relative non-functional priorities</h2>
<p align="left">Balance required - must still fail cheaply</p>
<p align="left">Balance required - complexity trade-off</p>
<p align="left">Balance required - perception and trade-offs</p>
</section>
<section data-background="#A3C2FF">
<h2>Relative non-functional priorities</h2>
<img width="700" height="400" data-src="images/SpineIRelativePriority.png" alt="Spine I relative priorities - Spine II SAD">
</section>
<section data-background="#A3C2FF">
<h2>Relative non-functional priorities</h2>
<img width="700" height="400" data-src="images/SpineIIRelativePriorityp1.png" alt="Spine II relative priorities - Spine II SAD">
</section>
<section data-background="#A3C2FF">
<h2>Relative non-functional priorities</h2>
<img width="700" height="400" data-src="images/SpineIIRelativePriorityp2.png" alt="Spine II relative priorities - Spine II SAD">
</section>
<section data-background="#A3C2FF">
<h2>Minimum Viable Standards</h2>
<p align="left">Automated tests</p>
<p align="left">Code standards and peer review</p>
<p align="left">A mechanism for consistent deployment</p>
<p align="left">Minimalist building blocks</p>
<p align="left">... To determine debt not success</p>
</section>
<section data-background="#A3C2FF">
<h2>Trade-offs in development</h2>
<p align="left">Log-driven development</p>
<p align="left">Intermittently failing system tests</p>
<p align="left">Functionally complex volume tests</p>
</section>
<section data-background="#A3C2FF">
<h2>Trade-offs in development</h2>
<p align="left">Building blocks, not magic boxes</p>
<p align="left">Async message patterns, the actor model</p>
<p align="left">Eventual consistency</p>
<p align="left">Nygard patterns</p>
</section>
<section data-background="#A3C2FF">
<h2>Trade-offs in development</h2>
<p align="left">Standardise a communication framework</p>
<p align="left">Build the framework into continuous delivery</p>
<p align="left">Apply security within the framework</p>
<p align="left">Add diagnostics to the framework</p>
</section>
<section data-background="#A3C2FF">
<h2>Invest in simplicity</h2>
<blockquote cite="https://en.wikipedia.org/wiki/No_Silver_Bullet"><small>
<p>“Whereas the difference between poor conceptual designs and good ones may lie in the soundness of design method, the difference between good designs and great ones surely does not.</p>
<p>Great designs come from great designers.</p>
<p>... very best designers produce structures that are faster, smaller, simpler, cleaner, and produced with less effort. ”</p>
</blockquote>
<p><small>Fred Brooks, No Silver Bullet, 1986</small></p></small>
</section>
<section data-background="#A3C2FF">
<h2>Invest in simplicity</h2>
<p align="left">Finding the simplest path to most destinations</p>
<img width="700" height="400" data-src="images/ChooseBoringTech.png" alt="Map Problems to Few Solutions" cite="http://mcfunley.com/choose-boring-technology">
</section>
<section data-background="#A3C2FF">
<h2>Design-in a Sanctuary Process</h2>
<img width="800" height="350" data-src="images/datacenter_scale.png" alt="XKCD 1737" cite="https://xkcd.com/1737">
</section>
<section data-background="#A3C2FF">
<h2>Manage a Service Model as an uncertain requirement</h2>
<p align="left">Team size must be part of the target</p>
<p align="left">Constraints may pre-exist</p>
<p align="left">Infrastructure choices should not be abstract</p>
</section>
<section data-background="#A3C2FF">
<h2>Avoid too much sunk cost</h2>
<p align="left">Use open source</p>
</section>
<section data-background="#A3C2FF">
<h2>Avoid too much sunk cost</h2>
<p align="left">Defer user research</p>
</section>
<section data-background="#A3C2FF">
<h2>Introduction</h2>
</section>
<section data-background="#A3C2FF">
<h2>Documentation quality matters</h2>
<p align="left">SAD + KADs</p>
<p align="left">Service Model</p>
<p align="left">Security Policy</p>
<p align="left">KOPs</p>
</section>
<section data-background="#A3C2FF">
<h2>Preparing for live</h2>
<p align="left">Look hard for edge cases, smooth them out</p>
<p align="left">Rehearse responding to the unexpected</p>
<p align="left">Don't lump activity at the end</p>
<p align="left">Don't alienate third parties</p>
</section>
<section data-background="#A3C2FF">
<h2>Iterate if possible</h2>
<p align="left">Assess if something is better than nothing</p>
<p align="left">RO go live - lazy data migrations</p>
<p align="left">Avoid complexity at stressful time</p>
<p align="left">Don't offload planning</p>
<p align="left">Make plans dynamic</p>
</section>
<section data-background="#A3C2FF">
<h2>Keep people present</h2>
<p align="left">The project needs them</p>
<p align="left">They need to experience operations</p>
<p align="left">Prepare for the shock of live ...</p>
<p align="right">... Plan for how it will impact people</p>
<p align="right">Train and rehearse</p>
</section>
<section data-background="#A3C2FF">
<h2>Be ready to change</h2>
<p align="left">Continuously improve continuous delivery</p>
</section>
<section data-background="#A3C2FF">
<h2>Operations</h2>
</section>
<section data-background="#A3C2FF">
<h2>Documentation quality still matters</h2>
<p align="left">KOP improvement</p>
<p align="left">Capacity reviews</p>
<p align="left">SLO reports</p>
<p align="left">Incident retrospective</p>
</section>
<section data-background="#A3C2FF">
<h2>Use the sanctuary process</h2>
<p align="left"> ... even when it isn't necessary</p>
<p align="left"> ... even when it probably won't work</p>
</section>
<section data-background="#A3C2FF">
<h2>Stop guessing</h2>
<p align="left">Invert Lines</p>
<p align="left">Recover</p>
<p align="left">Five Whys</p>
<p align="left">Be the Bookie</p>
</section>
<section data-background="#A3C2FF">
<h2>Communicate directly</h2>
<p align="left">Remove distance</p>
<p align="left">Remove conflict from open discussion</p>
</section>
<section data-background="#A3C2FF">
<h2>Audit what happens</h2>
<p align="left">Universal detection is a better goal than partial prevention</h2>
</section>
<section data-background="#A3C2FF">
<h2>Enforce stop and think before action</h2>
<p align="left">... (other than sanctuary process)</p>
<p align="left">... and not just stop</p>
</section>
<section data-background="#A3C2FF">
<h2>Five whys behaviour</h2>
<p align="left">Not just technology</p>
<p align="left">Stupidity is not an explanation</p>
<p align="left">Root cause isn't helpful</p>
<p align="left">Changing the response is normally better ..</p>
<p align="right">... than changing the trigger</p>
</section>
<section data-background="#A3C2FF">
<h2>Review</h2>
<p align="left">Show and tell - incidents, problems</p>
<p align="left">Retrospectives</p>
</section>
<section data-background="#A3C2FF">
<h2>Stop starting and start finishing</h2>
<p align="left">Address technical debt in series not in parallel</p>
</section>
<section data-background="#A3C2FF">
<h2>Mine the data</h2>
<p align="left">Capacity reporting needs to find strange limits</p>
<p align="left">Collate and investigate anecdotal evidence</p>
</section>
<section data-background="#A3C2FF">
<h2>Maintain cleanliness</h2>
<p>Other errors are incident red herrings<p>
</section>
<section data-background="#E6E68A">
<h2>Example Service Model</h2>
</section>
<section data-background="#E6E68A">
<h2>What makes it anachronistic?</h2>
<p align="left">Should more testing be done in production?</p>
<p align="left">Should it be on the cloud?</p>
<p align="left">Should the TechOps role be removed?</p>
</section>
<section>
<h2>Thank-You</h2>
<img width="600" height="450" data-src="images/thank-you.jpg"/>
<p>@masleeds</p>
</section>
</div>
</div>
<script src="lib/js/head.min.js"></script>
<script src="js/reveal.js"></script>
<script>
// Full list of configuration options available at:
// https://github.com/hakimel/reveal.js#configuration
Reveal.initialize({
controls: true,
progress: true,
history: true,
center: true,
transition: 'slide', // none/fade/slide/convex/concave/zoom
// Optional reveal.js plugins
dependencies: [
{ src: 'lib/js/classList.js', condition: function() { return !document.body.classList; } },
{ src: 'plugin/markdown/marked.js', condition: function() { return !!document.querySelector( '[data-markdown]' ); } },
{ src: 'plugin/markdown/markdown.js', condition: function() { return !!document.querySelector( '[data-markdown]' ); } },
{ src: 'plugin/highlight/highlight.js', async: true, condition: function() { return !!document.querySelector( 'pre code' ); }, callback: function() { hljs.initHighlightingOnLoad(); } },
{ src: 'plugin/zoom-js/zoom.js', async: true },
{ src: 'plugin/notes/notes.js', async: true }
]
});
</script>
</body>
</html>