1564 lines
61 KiB
HTML
1564 lines
61 KiB
HTML
<!DOCTYPE html>
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<html dir='ltr' xmlns='http://www.w3.org/1999/xhtml' xmlns:b='http://www.google.com/2005/gml/b' xmlns:data='http://www.google.com/2005/gml/data' xmlns:expr='http://www.google.com/2005/gml/expr'>
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<head>
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<link href='https://www.blogger.com/static/v1/widgets/4165133002-widget_css_bundle.css' rel='stylesheet' type='text/css'/>
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<meta content='text/html; charset=UTF-8' http-equiv='Content-Type'/>
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<meta content='blogger' name='generator'/>
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<link href='https://sysadvent.blogspot.com/favicon.ico' rel='icon' type='image/x-icon'/>
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<link href='https://sysadvent.blogspot.com/2021/12/reliability-as-product-feature.html' rel='canonical'/>
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<link rel="alternate" type="application/atom+xml" title="sysadvent - Atom" href="https://sysadvent.blogspot.com/feeds/posts/default" />
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<link rel="alternate" type="application/rss+xml" title="sysadvent - RSS" href="https://sysadvent.blogspot.com/feeds/posts/default?alt=rss" />
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<link rel="service.post" type="application/atom+xml" title="sysadvent - Atom" href="https://draft.blogger.com/feeds/3615332969083650973/posts/default" />
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<link rel="alternate" type="application/atom+xml" title="sysadvent - Atom" href="https://sysadvent.blogspot.com/feeds/3453013363765834694/comments/default" />
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<link href='https://lh4.googleusercontent.com/425sdbwBKobjYHRoNHZFVNag1SaP2kxrHT7vP82yphtuNUnJbge9PTz85RZjLMeL-Ut-xjbIvD24K1vdzIQm4SuZND44ZtOJSNSwmXPCQp_GQMsuZvfZpfvWZFKGq1GQFa3Xt8ri' rel='image_src'/>
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<meta content='https://sysadvent.blogspot.com/2021/12/reliability-as-product-feature.html' property='og:url'/>
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<meta content='Day 2 - Reliability as a Product Feature' property='og:title'/>
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<meta content=' By: Martin Smith ( @martinb3 ) Edited by: Jennifer Davis ( @sigje ) Abstract SRE was born out of thinking about reliabil...' property='og:description'/>
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<meta content='https://lh4.googleusercontent.com/425sdbwBKobjYHRoNHZFVNag1SaP2kxrHT7vP82yphtuNUnJbge9PTz85RZjLMeL-Ut-xjbIvD24K1vdzIQm4SuZND44ZtOJSNSwmXPCQp_GQMsuZvfZpfvWZFKGq1GQFa3Xt8ri=w1200-h630-p-k-no-nu' property='og:image'/>
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<title>
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sysadvent: Day 2 - Reliability as a Product Feature
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</title>
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<style type='text/css'>@font-face{font-family:'Allerta';font-style:normal;font-weight:400;font-display:swap;src:url(//fonts.gstatic.com/s/allerta/v19/TwMO-IAHRlkbx940YnYXSCiN9uc.woff2)format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;}@font-face{font-family:'Arimo';font-style:normal;font-weight:400;font-display:swap;src:url(//fonts.gstatic.com/s/arimo/v36/P5sfzZCDf9_T_3cV7NCUECyoxNk37cxcDRrBdwcoaaQwpBQ.woff2)format('woff2');unicode-range:U+0460-052F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F;}@font-face{font-family:'Arimo';font-style:normal;font-weight:400;font-display:swap;src:url(//fonts.gstatic.com/s/arimo/v36/P5sfzZCDf9_T_3cV7NCUECyoxNk37cxcBBrBdwcoaaQwpBQ.woff2)format('woff2');unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116;}@font-face{font-family:'Arimo';font-style:normal;font-weight:400;font-display:swap;src:url(//fonts.gstatic.com/s/arimo/v36/P5sfzZCDf9_T_3cV7NCUECyoxNk37cxcDBrBdwcoaaQwpBQ.woff2)format('woff2');unicode-range:U+1F00-1FFF;}@font-face{font-family:'Arimo';font-style:normal;font-weight:400;font-display:swap;src:url(//fonts.gstatic.com/s/arimo/v36/P5sfzZCDf9_T_3cV7NCUECyoxNk37cxcAxrBdwcoaaQwpBQ.woff2)format('woff2');unicode-range:U+0370-0377,U+037A-037F,U+0384-038A,U+038C,U+038E-03A1,U+03A3-03FF;}@font-face{font-family:'Arimo';font-style:normal;font-weight:400;font-display:swap;src:url(//fonts.gstatic.com/s/arimo/v36/P5sfzZCDf9_T_3cV7NCUECyoxNk37cxcAhrBdwcoaaQwpBQ.woff2)format('woff2');unicode-range:U+0307-0308,U+0590-05FF,U+200C-2010,U+20AA,U+25CC,U+FB1D-FB4F;}@font-face{font-family:'Arimo';font-style:normal;font-weight:400;font-display:swap;src:url(//fonts.gstatic.com/s/arimo/v36/P5sfzZCDf9_T_3cV7NCUECyoxNk37cxcDxrBdwcoaaQwpBQ.woff2)format('woff2');unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB;}@font-face{font-family:'Arimo';font-style:normal;font-weight:400;font-display:swap;src:url(//fonts.gstatic.com/s/arimo/v36/P5sfzZCDf9_T_3cV7NCUECyoxNk37cxcDhrBdwcoaaQwpBQ.woff2)format('woff2');unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF;}@font-face{font-family:'Arimo';font-style:normal;font-weight:400;font-display:swap;src:url(//fonts.gstatic.com/s/arimo/v36/P5sfzZCDf9_T_3cV7NCUECyoxNk37cxcABrBdwcoaaQw.woff2)format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;}</style>
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<style id='page-skin-1' type='text/css'><!--
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/*
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-----------------------------------------------
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Blogger Template Style
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Name: Minima
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Designer: Douglas Bowman
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URL: www.stopdesign.com
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Date: 26 Feb 2004
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Updated by: Blogger Team
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----------------------------------------------- */
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/* Variable definitions
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====================
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<Variable name="bgcolor" description="Page Background Color"
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type="color" default="#fff">
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<Variable name="textcolor" description="Text Color"
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type="color" default="#333">
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<Variable name="linkcolor" description="Link Color"
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type="color" default="#58a">
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<Variable name="pagetitlecolor" description="Blog Title Color"
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type="color" default="#666">
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<Variable name="descriptioncolor" description="Blog Description Color"
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type="color" default="#999">
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<Variable name="titlecolor" description="Post Title Color"
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type="color" default="#c60">
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<Variable name="bordercolor" description="Border Color"
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type="color" default="#ccc">
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<Variable name="sidebarcolor" description="Sidebar Title Color"
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type="color" default="#999">
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<Variable name="sidebartextcolor" description="Sidebar Text Color"
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type="color" default="#666">
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<Variable name="visitedlinkcolor" description="Visited Link Color"
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type="color" default="#999">
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<Variable name="bodyfont" description="Text Font"
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type="font" default="normal normal 100% Georgia, Serif">
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<Variable name="headerfont" description="Sidebar Title Font"
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type="font"
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default="normal normal 78% 'Trebuchet MS',Trebuchet,Arial,Verdana,Sans-serif">
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<Variable name="pagetitlefont" description="Blog Title Font"
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type="font"
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default="normal normal 200% Georgia, Serif">
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<Variable name="descriptionfont" description="Blog Description Font"
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type="font"
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default="normal normal 78% 'Trebuchet MS', Trebuchet, Arial, Verdana, Sans-serif">
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<Variable name="postfooterfont" description="Post Footer Font"
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type="font"
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default="normal normal 78% 'Trebuchet MS', Trebuchet, Arial, Verdana, Sans-serif">
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<Variable name="startSide" description="Side where text starts in blog language"
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type="automatic" default="left">
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<Variable name="endSide" description="Side where text ends in blog language"
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type="automatic" default="right">
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*/
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/* Use this with templates/template-twocol.html */
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body {
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background:#ffffff;
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margin:0;
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color:#333333;
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font:x-small Georgia Serif;
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font-size/* */:/**/small;
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font-size: /**/small;
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text-align: center;
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}
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a:link {
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color:#5588aa;
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text-decoration:none;
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}
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a:visited {
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color:#999999;
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text-decoration:none;
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}
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a:hover {
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color:#cc6600;
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text-decoration:underline;
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}
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a img {
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border-width:0;
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}
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/* Header
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-----------------------------------------------
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*/
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#header-wrapper {
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width:760px;
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margin:0 auto 10px;
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/*border:1px solid #cccccc;*/
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}
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#header-inner {
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background-position: center;
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margin-left: auto;
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margin-right: auto;
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}
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#header {
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margin: 5px;
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/*border: 1px solid #cccccc;*/
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text-align: center;
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color:#666666;
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}
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#header h1 {
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margin:5px 5px 0;
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padding:15px 20px .25em;
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line-height:1.2em;
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text-transform:uppercase;
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letter-spacing:.2em;
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font: normal normal 200% Georgia, Serif;
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}
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#header a {
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color:#666666;
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text-decoration:none;
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}
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#header a:hover {
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color:#666666;
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}
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#header .description {
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margin:0 5px 5px;
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padding:0 20px 15px;
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max-width:800px;
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text-transform:uppercase;
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letter-spacing:.2em;
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line-height: 1.4em;
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font: normal normal 78% 'Trebuchet MS', Trebuchet, Arial, Verdana, Sans-serif;
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color: #999999;
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}
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#header img {
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margin-left: auto;
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margin-right: auto;
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}
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/* Outer-Wrapper
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----------------------------------------------- */
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#outer-wrapper {
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width: 760px;
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margin:0 auto;
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padding:10px;
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text-align:left;
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font: normal normal 100% Arimo;
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}
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#main-wrapper {
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width: 510px;
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float: left;
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word-wrap: break-word; /* fix for long text breaking sidebar float in IE */
|
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overflow: hidden; /* fix for long non-text content breaking IE sidebar float */
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}
|
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#sidebar-wrapper {
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width: 220px;
|
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float: right;
|
|
word-wrap: break-word; /* fix for long text breaking sidebar float in IE */
|
|
overflow: hidden; /* fix for long non-text content breaking IE sidebar float */
|
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}
|
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/* Headings
|
|
----------------------------------------------- */
|
|
h2 {
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margin:1.5em 0 .75em;
|
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font:normal normal 130% Allerta;
|
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line-height: 1.4em;
|
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text-transform:uppercase;
|
|
letter-spacing:.2em;
|
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color:#999999;
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}
|
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/* Posts
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-----------------------------------------------
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*/
|
|
h2.date-header {
|
|
margin:1.5em 0 .5em;
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}
|
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.post {
|
|
margin:.5em 0 1.5em;
|
|
border-bottom:1px dotted #cccccc;
|
|
padding-bottom:1.5em;
|
|
}
|
|
.post h3 {
|
|
margin:.25em 0 0;
|
|
padding:0 0 4px;
|
|
font-size:140%;
|
|
font-weight:normal;
|
|
line-height:1.4em;
|
|
color:#cc6600;
|
|
}
|
|
.post h3 a, .post h3 a:visited, .post h3 strong {
|
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display:block;
|
|
text-decoration:none;
|
|
color:#cc6600;
|
|
font-weight:normal;
|
|
}
|
|
.post h3 strong, .post h3 a:hover {
|
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color:#333333;
|
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}
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.post-body {
|
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margin:0 0 .75em;
|
|
line-height:1.6em;
|
|
}
|
|
.post-body blockquote {
|
|
line-height:1.3em;
|
|
}
|
|
.post-footer {
|
|
margin: .75em 0;
|
|
color:#999999;
|
|
text-transform:uppercase;
|
|
letter-spacing:.1em;
|
|
font: normal normal 78% 'Trebuchet MS', Trebuchet, Arial, Verdana, Sans-serif;
|
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line-height: 1.4em;
|
|
}
|
|
.comment-link {
|
|
margin-left:.6em;
|
|
}
|
|
.post img {
|
|
padding:4px;
|
|
border:1px solid #cccccc;
|
|
}
|
|
.post blockquote {
|
|
margin:1em 20px;
|
|
}
|
|
.post blockquote p {
|
|
margin:.75em 0;
|
|
}
|
|
.post pre {
|
|
overflow: auto;
|
|
padding-left: 5px;
|
|
padding-right: 5px;
|
|
border: 1px solid #CCCCFF !important;
|
|
}
|
|
.post pre a {
|
|
text-decoration: underline;
|
|
}
|
|
/* Comments
|
|
----------------------------------------------- */
|
|
#comments h4 {
|
|
margin:1em 0;
|
|
font-weight: bold;
|
|
line-height: 1.4em;
|
|
text-transform:uppercase;
|
|
letter-spacing:.2em;
|
|
color: #999999;
|
|
}
|
|
#comments-block {
|
|
margin:1em 0 1.5em;
|
|
line-height:1.6em;
|
|
}
|
|
#comments-block .comment-author {
|
|
margin:.5em 0;
|
|
}
|
|
#comments-block .comment-body {
|
|
margin:.25em 0 0;
|
|
}
|
|
#comments-block .comment-footer {
|
|
margin:-.25em 0 2em;
|
|
line-height: 1.4em;
|
|
text-transform:uppercase;
|
|
letter-spacing:.1em;
|
|
}
|
|
#comments-block .comment-body p {
|
|
margin:0 0 .75em;
|
|
}
|
|
.deleted-comment {
|
|
font-style:italic;
|
|
color:gray;
|
|
}
|
|
#blog-pager-newer-link {
|
|
float: left;
|
|
}
|
|
#blog-pager-older-link {
|
|
float: right;
|
|
}
|
|
#blog-pager {
|
|
text-align: center;
|
|
}
|
|
.feed-links {
|
|
clear: both;
|
|
line-height: 2.5em;
|
|
}
|
|
/* Sidebar Content
|
|
----------------------------------------------- */
|
|
.sidebar {
|
|
color: #666666;
|
|
line-height: 1.5em;
|
|
}
|
|
.sidebar ul {
|
|
list-style:none;
|
|
margin:0 0 0;
|
|
padding:0 0 0;
|
|
}
|
|
.sidebar li {
|
|
margin:0;
|
|
padding-top:0;
|
|
padding-right:0;
|
|
padding-bottom:.25em;
|
|
padding-left:15px;
|
|
text-indent:-15px;
|
|
line-height:1.5em;
|
|
}
|
|
.sidebar .widget, .main .widget {
|
|
border-bottom:1px dotted #cccccc;
|
|
margin:0 0 1.5em;
|
|
padding:0 0 1.5em;
|
|
}
|
|
.main .Blog {
|
|
border-bottom-width: 0;
|
|
}
|
|
/* Profile
|
|
----------------------------------------------- */
|
|
.profile-img {
|
|
float: left;
|
|
margin-top: 0;
|
|
margin-right: 5px;
|
|
margin-bottom: 5px;
|
|
margin-left: 0;
|
|
padding: 4px;
|
|
border: 1px solid #cccccc;
|
|
}
|
|
.profile-data {
|
|
margin:0;
|
|
text-transform:uppercase;
|
|
letter-spacing:.1em;
|
|
font: normal normal 78% 'Trebuchet MS', Trebuchet, Arial, Verdana, Sans-serif;
|
|
color: #999999;
|
|
font-weight: bold;
|
|
line-height: 1.6em;
|
|
}
|
|
.profile-datablock {
|
|
margin:.5em 0 .5em;
|
|
}
|
|
.profile-textblock {
|
|
margin: 0.5em 0;
|
|
line-height: 1.6em;
|
|
}
|
|
.profile-link {
|
|
font: normal normal 78% 'Trebuchet MS', Trebuchet, Arial, Verdana, Sans-serif;
|
|
text-transform: uppercase;
|
|
letter-spacing: .1em;
|
|
}
|
|
/* Footer
|
|
----------------------------------------------- */
|
|
#footer {
|
|
width:760px;
|
|
clear:both;
|
|
margin:0 auto;
|
|
padding-top:15px;
|
|
line-height: 1.6em;
|
|
text-transform:uppercase;
|
|
letter-spacing:.1em;
|
|
text-align: center;
|
|
}
|
|
@media only screen and (max-width:480px) {
|
|
a:link {
|
|
color: #d12a39;
|
|
}
|
|
.mobile-link-button {
|
|
background-color: #d12a39;
|
|
}
|
|
.mobile-link-button a:link, .mobile-link-button a:visited {
|
|
color: #ffffff;
|
|
}
|
|
}
|
|
|
|
--></style>
|
|
<link href='https://draft.blogger.com/dyncss/3615332969083650973/authorization.css?zx=24cd04b2-38ff-45f4-a3f0-f0a07f75ec8f' media='none' onload='if(media!='all')media='all'' rel='stylesheet'/><noscript><link href='https://draft.blogger.com/dyncss/3615332969083650973/authorization.css?zx=24cd04b2-38ff-45f4-a3f0-f0a07f75ec8f' rel='stylesheet'/></noscript>
|
|
<meta name='google-adsense-platform-account' content='ca-host-pub-1556223355139109'/>
|
|
<meta name='google-adsense-platform-domain' content='blogspot.com'/>
|
|
|
|
<!-- data-ad-client=ca-pub-6194074709963145 -->
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|
|
|
</head>
|
|
<body>
|
|
<div class='navbar section' id='navbar'><div class='widget Navbar' data-version='1' id='Navbar1'><script type="text/javascript">
|
|
function setAttributeOnload(object, attribute, val) {
|
|
if(window.addEventListener) {
|
|
window.addEventListener('load',
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|
function(){ object[attribute] = val; }, false);
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|
} else {
|
|
window.attachEvent('onload', function(){ object[attribute] = val; });
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}
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}
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</script>
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|
<div id="navbar-iframe-container"></div>
|
|
<script type="text/javascript" src="https://apis.google.com/js/platform.js"></script>
|
|
<script type="text/javascript">
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<h2 class='date-header'>
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<span>
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December 2, 2021
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</h2>
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<div class="date-posts">
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<div class='post-outer'>
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<a name='3453013363765834694'></a>
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<h3 class='post-title entry-title'>
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<a href='https://sysadvent.blogspot.com/2021/12/reliability-as-product-feature.html'>
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Day 2 - Reliability as a Product Feature
|
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</a>
|
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</h3>
|
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<div class='post-header-line-1'></div>
|
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<div class='post-body entry-content'>
|
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<p>
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By: Martin Smith (<a href="https://twitter.com/martinb3">@martinb3</a>)<br />
|
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Edited by: Jennifer Davis (<a href="https://twitter.com/sigje">@sigje</a>)
|
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</p>
|
|
|
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<h2>Abstract</h2>
|
|
<p>
|
|
SRE was born out of thinking about reliability as a product feature. However,
|
|
all of the industry focus in the last few years on things like SLOs and Error
|
|
Budgets and Production Engineering teams, and others, that constitute "doing
|
|
SRE," sometimes means teams don’t take advantage of a product-centric approach
|
|
to reliability these days. And they lose some of the advantages of doing so as a
|
|
result. This post covers some project maturity levels, some suggestions for
|
|
thinking about reliability as an SRE engaged in those kinds of projects, as well
|
|
as what kinds of collaboration might be most successful in driving
|
|
reliability-as-product-feature in each phase.
|
|
</p>
|
|
<h2>A brief history</h2>
|
|
<p>
|
|
Site Reliability Engineering, or SRE for short, was <a href="https://www.oreilly.com/content/site-reliability-engineering-sre-a-simple-overview/">born
|
|
in 2003</a> out of a need to improve service reliability at <a href="https://sre.google/">Google</a>. Often described as, “an implementation of
|
|
<a href="https://aws.amazon.com/devops/what-is-devops/">DevOps</a>,” the
|
|
practice of SRE aims to <strong>treat operations as a software problem</strong>
|
|
that can be addressed through software engineering techniques.
|
|
</p>
|
|
<p>
|
|
And according to <a href="https://insights.devopsinstitute.com/hubfs/Automation%20Downloads/Upskilling%202021-Enterprise%20DevOps%20Skills%20Report.pdf">a
|
|
survey by the DevOps Institute</a>, SRE has truly taken off. This approach has
|
|
been widely adopted, with <strong>22% of organizations saying they have an SRE
|
|
team in 2021</strong>. This shift can also be seen with the rise of conferences
|
|
like USENIX’s SREcon which began in 2014, or the release of the popular, “Google
|
|
SRE book,” a few years later in 2016.
|
|
</p>
|
|
<p>
|
|
Whether or not your organization has an SRE team that plans work using SLOs and
|
|
Error Budgets, regularly reduces toil through automation, or has adopted one of
|
|
the <a href="https://www.oreilly.com/content/site-reliability-engineering-sre-a-simple-overview/">many
|
|
SRE rules of thumb</a>, the basic premise of <strong>what impact SRE can have
|
|
sometimes gets lost</strong> -- that operations is a software problem. Or,
|
|
shifting the focus back to the customer perspective, that <strong>reliability is
|
|
a product feature</strong> that we build.
|
|
</p>
|
|
<p>
|
|
Having held <em>DevOps Engineer</em> and <em>Site Reliability Engineer</em>
|
|
roles in the past, and having been a technical lead for SRE teams, I’ve had many
|
|
opportunities to define the role, activities, and most importantly, the
|
|
<strong>impact of an SRE team</strong>. In each case, I’ve found that
|
|
<strong>focusing back on our customers’ experience of reliability</strong> has
|
|
been the most useful framing when speaking to company leaders about SRE team’s,
|
|
“<a href="https://simonsinek.com/product/find-your-why/">why</a>,” instead of
|
|
reciting a long, confusing list of things SREs might do in a quarter. I’ve also
|
|
found that it’s an easy litmus test for myself to ensure I’m working on the
|
|
right things at the right time. If I can’t explain how my work affects customer
|
|
reliability, keeping in mind that <strong>reliability for operators usually
|
|
leads to reliability for customers, </strong>it might be a sign that I need to
|
|
work on something else.
|
|
</p>
|
|
<p>
|
|
</p>
|
|
<h2>Shifting focus back to product reliability</h2>
|
|
<p>
|
|
Shifting the focus from operations and software engineering to talking about
|
|
<strong>reliability as a product feature</strong> has some major benefits.
|
|
First, it helps our organizations better understand what reliability might mean
|
|
for them and their product(s) -- whether that’s <strong>resilience</strong>
|
|
(tolerant of failure), <strong>scalability</strong> (can function with large
|
|
volumes of work), <strong>observability</strong> (understanding internal state
|
|
from outputs), or <strong>security</strong> (trust of the system). These are all
|
|
product capabilities that often aren’t well understood, but fundamentally all
|
|
matter to customers.
|
|
</p>
|
|
<p>
|
|
Reliability <strong>benefits from product management support</strong>
|
|
(communication with stakeholders, building roadmaps, helping with prioritization
|
|
and decisions, etc). For example, do you know who your internal stakeholders are
|
|
for the scalability of your product? What’s on the roadmap for observability
|
|
over the next 6 months? 2 years? And importantly, what metrics will you collect
|
|
to be sure you’ve accomplished those goals and delivered on that roadmap? How
|
|
does it align with other features’ roadmaps? As a friend and former colleague of
|
|
mine says, “reliability is a product feature whether you devote engineering time
|
|
to it or not.” If you don’t explicitly plan for that, your customers will
|
|
implicitly make their own assumptions about your reliability.
|
|
</p>
|
|
<p>
|
|
Reliability may start to sound like any other product feature, with both
|
|
internal and external stakeholders, and that’s by design. Making reliability an
|
|
explicit part of your organizational planning also has many benefits.
|
|
Thoughtworks’ <a href="https://www.thoughtworks.com/content/dam/thoughtworks/documents/radar/2021/10/tr_technology_radar_vol_25_en.pdf">Technology
|
|
Radar (Volume 25)</a> from October of this year recommends adoption of this kind
|
|
of thinking -- that even <strong>internal teams should think of themselves as
|
|
product teams</strong>. They also recommend using concepts from the popular <a href="https://teamtopologies.com/">Team Topologies</a> book to figure out how to
|
|
organize these internal teams. In reviewing examples of team structures from the
|
|
book, many organizations have adopted Simon Wardley’s <a href="https://blog.gardeviance.org/2015/03/on-pioneers-settlers-town-planners-and.html">Pioneer-Settler-Town
|
|
Planner</a> (or “PST”) framework, too.
|
|
</p>
|
|
<p>
|
|
Let’s take a look at how one might apply these two ideas (reliability as a
|
|
product feature, having a specific team profile) to improve the effectiveness of
|
|
an SRE team.
|
|
</p>
|
|
<ol>
|
|
<li>First, <strong>there’s no one-size-fits-all approach to improving
|
|
reliability</strong>; different stages of a project will benefit from different
|
|
kinds of SRE involvement. In this post, I’ll divide products/services into three
|
|
levels of maturity: <strong>beginning, growing, and established</strong>.
|
|
<li>Then, I’ll describe <strong>what kinds of SRE work could be most effective
|
|
at that maturity level</strong>, using the PST framework.
|
|
</li>
|
|
</ol>
|
|
<p>
|
|
Here’s a graphic that explains the <a href="https://leadingedgeforum.com/insights/a-lesson-from-the-past-on-pioneering-organizational-structures/">PST
|
|
framework</a>’s three kinds of roles/activities in more detail.
|
|
</p>
|
|
<img src="https://lh4.googleusercontent.com/425sdbwBKobjYHRoNHZFVNag1SaP2kxrHT7vP82yphtuNUnJbge9PTz85RZjLMeL-Ut-xjbIvD24K1vdzIQm4SuZND44ZtOJSNSwmXPCQp_GQMsuZvfZpfvWZFKGq1GQFa3Xt8ri" style="margin-left: 0px; margin-top: 0px;" width="492" />
|
|
<p>
|
|
Team Profiles, from blog post <a href="https://blog.gardeviance.org/2012/06/pioneers-settlers-and-town-planners.html">Pioneers,
|
|
Settlers and Town Planners</a> by Simon Wardley
|
|
</p>
|
|
<h2>Beginning phase (with Pioneer SREs)</h2>
|
|
<p>
|
|
In new projects, there’s <strong>often uncertainty and unanswered
|
|
questions</strong>. Small changes in direction could have large future benefits,
|
|
but experimental work may be completely discarded, too. SREs can drive
|
|
reliability at this stage by helping teams build prototypes, fail faster, and
|
|
make agile decisions, <strong>all with reliability as a top of mind
|
|
concern</strong>.
|
|
</p>
|
|
<p>
|
|
Have you ever had a project get close to production/release <strong>without
|
|
thinking about reliability or operational burdens</strong>? “Pioneer SREs” can
|
|
help. They should be part of the team that’s working to deliver a new product
|
|
development, evaluate vendors, build out proofs of concept, or make major
|
|
architectural changes. At this stage of a project, any work to “cover”
|
|
reliability gaps should be identified or entire directions could be changed due
|
|
to reliability concerns raised by the team.
|
|
</p>
|
|
<p>
|
|
<strong>Embedding</strong> in a team building the new product or feature is a
|
|
great way for SREs to drive reliability early on in these kinds of projects.
|
|
When teams only consult briefly on reliability or operational concerns, often
|
|
the final output doesn’t adequately reflect customer or engineering expectations
|
|
of reliability of the product or operability of the internals.
|
|
</p>
|
|
<p>
|
|
The <strong>success of Pioneer SREs</strong> can be measured by looking at how
|
|
quickly new products or features show up on the roadmap, how quickly vendor
|
|
implementations happen, or how quickly a project moves from, “exploration,” to,
|
|
“concrete proposal.”
|
|
</p>
|
|
<p>
|
|
The<strong> largest risk</strong> in this phase is having your SRE team end up
|
|
owners of the system’s reliability, since they helped design it. Hiding the
|
|
overall reliability of your system from the other developers, behind an SRE
|
|
team, will typically turn into a situation where the <strong>SRE team ends up
|
|
being treated as an operational team</strong> for any product/service problems.
|
|
Well-scoped embedding engagements can help avoid this problem by emphasizing
|
|
that embedded SREs are a <strong>training resource </strong>for the rest of the
|
|
team to learn, <strong>not coverage</strong> for the team once the embedding is
|
|
over.
|
|
</p>
|
|
<h2>Growing phase (with Settler SREs)</h2>
|
|
<p>
|
|
In this phase, projects are often working to build <strong>production-quality
|
|
infrastructure</strong>, <strong>launch</strong> to customers, or
|
|
<strong>scale</strong> to the required audience. SREs can help actually build
|
|
mature and scalable components from the initial prototypes. They could also
|
|
level up the engineering organization on how to prepare for any <strong>new
|
|
operational burdens</strong> by emphasizing best practices like automating away
|
|
toil or choosing good SLOs.
|
|
</p>
|
|
<p>
|
|
<strong>Continuing to embed</strong> with teams is a great way for SREs to have
|
|
a hand in the reliability of a nearly-launched product or feature, especially if
|
|
SREs influence the team to build for observability, scalability, and security
|
|
into the product. <strong>Consulting </strong>with teams on production
|
|
readiness, especially for brand new teams or brand new services, is another way
|
|
that SREs can ensure that everything reaching production will meet the original
|
|
reliability requirements of the product, as well as operational best practices
|
|
(e.g. automation instead of manual database migrations).
|
|
</p>
|
|
<p>
|
|
At this phase, SRE building and maintaining an idea of <strong>Production
|
|
Readiness</strong> is especially important as a product or organization scales.
|
|
This ensures a consistent approach to reliability across products or services,
|
|
as well as creates a minimum bar for reliability that must be satisfied. SREs at
|
|
this stage may even build automation into a pipeline to guarantee minimum scale
|
|
or ensure resilience on specific failures.
|
|
</p>
|
|
<p>
|
|
The <strong>success of Settler SREs</strong> can be measured by looking at how
|
|
many new services and features are safely being launched into production, as
|
|
well as examining things like ease of observability (e.g. effective logging,
|
|
metrics, or monitoring). Success in this phase is also about
|
|
<strong>establishing patterns</strong> that make projects successful (e.g.
|
|
proposal templates). <strong>Project retrospectives</strong> are a great way to
|
|
find those patterns as well as improve SRE engagement with the project.
|
|
</p>
|
|
<h3>Established phase (with Town Planner SREs)</h3>
|
|
<p>
|
|
In this most mature phase, products or services are usually already generally
|
|
available, and systemic issues like overall architecture or developer tooling
|
|
are the most likely to impact reliability.
|
|
</p>
|
|
<p>
|
|
SREs can influence reliability here by identifying and working to resolve
|
|
<strong>systemic reliability issues</strong> (e.g. repeated incidents, poor SLO
|
|
choices, lack of on-call process, etc). <strong>Driving</strong>
|
|
<strong>continuous improvement </strong>is a very common way that SREs influence
|
|
reliability at this phase.
|
|
</p>
|
|
<p>
|
|
In addition, SREs can often identify ways to <strong>reduce operational burdens
|
|
or eliminate large scale toil</strong> during this phase, whether through
|
|
technical automation or architecture changes, or through helping teams build
|
|
process, knowledge, skills, tools and techniques they need for large scale
|
|
projects to be repeatedly successful and reliable.
|
|
</p>
|
|
<p>
|
|
This can be a phase where <strong>some SREs will feel there’s a stigma
|
|
associated with doing less technical work</strong>, but the impact of this work
|
|
cannot be overstated -- it’s where SRE can act as a <strong>true
|
|
multiplier</strong> as more and more teams and products/services are launched.
|
|
<strong>Examples include</strong> running an incident management program, SLA
|
|
program, On-call Program, Disaster Recovery/Business Continuity planning, or
|
|
even a Chaos Engineering program. A strategy to address this concern is to pair
|
|
SREs with a <a href="https://blog.tryexponent.com/what-is-the-role-of-a-technical-program-manager/">technical
|
|
program management function</a> (TPM) so that SREs can focus most on the
|
|
technical aspects of improvement while TPMs can help with the organizational
|
|
changes needed to improve a process or execute a program.
|
|
</p>
|
|
<p>
|
|
Measuring the <strong>success of Town Planner SREs</strong> can be especially
|
|
tricky. You might look for simple metric improvements like fewer incidents,
|
|
reduced incident duration, reduced pages, improved SLO targets, or number of DR
|
|
tests -- but isolating the SRE impact to these kinds of metrics can be
|
|
difficult. <strong>Qualitative feedback from an SRE team’s internal
|
|
customers</strong> is also frequently used to measure success at this stage. The
|
|
most impactful SREs at this stage tend to <strong>cause paradigm shifts for the
|
|
other development teams</strong>, and often even for their own SRE teammates.
|
|
</p>
|
|
<h2>Wrapping up</h2>
|
|
<p>
|
|
<em>[PST is] how you take a highly effective company and push it [...]
|
|
towards a continuously adaptive system. </em><a href="https://twitter.com/swardley/status/1258690134725349376">May 8th, 2020</a>
|
|
<a href="https://twitter.com/swardley/">@swardley</a>
|
|
</p>
|
|
<p>
|
|
I hope that the grouping above is useful to readers for structuring work to
|
|
drive reliability at various levels of product maturity.
|
|
Reliability-as-a-product-feature isn’t a magic bullet to solve for an
|
|
organization that doesn’t understand where it fits in the market or what kind of
|
|
value it delivers, nor will it make a large difference with an unhealthy product
|
|
management practice that might not know how to develop and drive delivery of a
|
|
product and its features over time.
|
|
</p>
|
|
<p>
|
|
As mentioned earlier, there usually isn’t a, “one-size fits all,” approach to
|
|
driving reliability. You may still need to <strong>establish some best practices
|
|
for your organization</strong> such as “Limit toil to 50% of our work” or “Every
|
|
product feature that goes live must have a reliability review.” Combined with
|
|
these kinds of rules of thumb, the proposed divisions and strategies above
|
|
should help focus your team(s) to make the biggest improvement to reliability
|
|
for your products and services.
|
|
</p>
|
|
<p>
|
|
In researching this post, it was helpful to review <a href="https://github.com/upgundecha/howtheysre">how organizations “do SRE”</a>
|
|
at various organizations and companies. <a href="https://www.cnpatterns.org/organization-culture/sre-team">Continuous
|
|
improvement</a> was a clear shared trait among them. It’s also worth reviewing
|
|
the huge amount of content out there about how SRE can effectively collaborate
|
|
with other teams (e.g. <a href="https://sre.google/sre-book/operational-overload/">embedding SREs</a>); a
|
|
poor relationship or failed collaboration with another team can jeopardize all
|
|
of your efforts.
|
|
</p>
|
|
<p>
|
|
I invite and encourage you to write about and share your own experiences, both
|
|
good and bad, focusing on reliability as a first class product feature at your
|
|
organization. Special thanks to my own SRE team for the many discussions and
|
|
ideation sessions on how we can best work to drive reliability. And special
|
|
thanks to Jennifer Davis, Michael Lumsden, David Nolan, Jordan Rinke, and Kerim
|
|
Satirli for feedback and editing on this post.
|
|
</p>
|
|
<div style='clear: both;'></div>
|
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Posted by
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<span class='fn'>
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sigje
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</span>
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</span>
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