SRE: Self Isolated Edition

Transcript

1. 1.

   armakuni.com Site Reliability Engineering Self Isolated Edition Billie Thompson

2. 2.

   2 How are you keeping it together?

3. 3.

   armakuni.com Site Reliability Engineering Self Isolated Edition Billie Thompson

4. 4.

   Introductions 4 • Billie Thompson • Developer • Fav. Animal

   Capybara PurpleBooth ArmakuniHQ Getting to know you, Getting to know all about you
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   5

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   We’ve worked with these people 6

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   7 I invented a game

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   8

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   9 30 Seconds Fast Careful

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    10 I can go faster, but I’ll make more mistakes

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    11 I can go slower, but I’ll get fewer in

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    12 Middle pace is about the best

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    13 30 Seconds

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    14 1 Sprint

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    15 SRE is an implementation of DevOps

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    16 In a few months SRE will be nothing more

    than DevOps 2.0
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    17 I want to talk about the bits that will

    be lost
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    18 Great Powers

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    19 The metric you see is the metric you move

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    20 The North Star Metric is the single metric that

    best captures the core value that your product delivers to customers.
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    21 Focus on feature delivery

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    22 Focus on feature delivery I delivered 15 story points

    this week! My teams just don’t have the feature velocity
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    23 Focus on feature delivery Focus on stability I delivered

    15 story points this week! My teams just don’t have the feature velocity
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    armakuni.com How do you combat the great power of feature

    delivery Self Isolated Edition Billie Thompson
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    25 What attributes does a countering force need to have

    • Fast feedback cycle • •
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    26 What attributes does a countering force need to have

    • Fast feedback cycle • Be achievable •
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    27 What attributes does a countering force need to have

    • Fast feedback cycle • Be achievable • Have monetary impact
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    28 Focus on feature delivery Focus on stability I delivered

    15 story points this week! My teams just don’t have the feature velocity and we don’t know The Error Budget
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    29 Errors are Inevitable

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    30 100% Uptime is Impossible

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    31 100% Uptime is Impossible and undesirable

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    32 Stability-o-meter Never down Always down

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    Our customers would leave us if we had performance in

    this region 33 Stability-o-meter Never down Always down
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    If we are here we are taking as much risk

    as our customers will tolerate 34 Stability-o-meter Never down Always down
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    We need a buffer between what we aim for and

    what our customers need 35 Stability-o-meter Never down Always down
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    This is our error budget we can spend it how

    we like 36 Stability-o-meter Never down Always down
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    Maybe we release a risky feature 37 Stability-o-meter Never down

    Always down
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    Maybe we do that DB migration 38 Stability-o-meter Never down

    Always down
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    Maybe something goes really wrong and we go over 39

    Stability-o-meter Never down Always down
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    40 Stability-o-meter Never down Always down SLO Service Level Objective

    An internal team target
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    41 Stability-o-meter Never down Always down SLA Service Level Agreement

    An external promise to customers backed up with financial penalties
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    42 Stability-o-meter Never down Always down SLA An external promise

    to customers backed up with financial penalties The units of this chart are the SLI (Service Level Indicator)
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    https://cre.page.link/art-of-slos-slides Request / Response Availability Latency Quality Data Processing Coverage

    Correctness Freshness Throughput Storage Throughput Latency SLI Menu
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    44 A running organisation is a complex system in balance

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    45 What are the balancing forces in your organisation?

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    46 Are they explicit?

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    armakuni.com Thank you!

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    48 Questions?! Now or at the end More More More!

    I Have Questions?