What is DevOps? - Speaker Deck

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What is DevOps? Björn Andersson

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(Hi Björn)

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What is DevOps?

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What is DevOps? • Culture

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What is DevOps? • Culture • Collaboration between disciplines

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What is DevOps? • Culture • Collaboration between disciplines • Developers, operations, business, QA, and so on…

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What is DevOps? • Culture • Collaboration between disciplines • Developers, operations, business, QA, and so on… • Getting your code into production

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What is DevOps? • Culture • Collaboration between disciplines • Developers, operations, business, QA, and so on… • Getting your code into production • As quickly as possible

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What is DevOps? • Culture • Collaboration between disciplines • Developers, operations, business, QA, and so on… • Getting your code into production • As quickly as possible • With as high a quality as possible

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But how do you do that?

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But how do you do that? • Tests

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But how do you do that? • Tests • Automated provisioning

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But how do you do that? • Tests • Automated provisioning • Get servers up, register Function as a Service handlers (FaaS), create databases

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But how do you do that? • Tests • Automated provisioning • Get servers up, register Function as a Service handlers (FaaS), create databases • Database migrations

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But how do you do that? • Tests • Automated provisioning • Get servers up, register Function as a Service handlers (FaaS), create databases • Database migrations • etc.

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But how do you do that? • Tests • Automated provisioning • Get servers up, register Function as a Service handlers (FaaS), create databases • Database migrations • etc. • Package deploy artefacts (containers, JAR ﬁles, FaaS zip archives, etc.)

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And how do we do that?

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Tools

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Tools • Ansible / Chef / Puppet (server conﬁguration)

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Tools • Ansible / Chef / Puppet (server conﬁguration) • TerraForm (infrastructure provisioning)

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Tools • Ansible / Chef / Puppet (server conﬁguration) • TerraForm (infrastructure provisioning) • Container orchestration (Kubernetes / Nomad / AWS ECS)

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Tools • Ansible / Chef / Puppet (server conﬁguration) • TerraForm (infrastructure provisioning) • Container orchestration (Kubernetes / Nomad / AWS ECS) • Cloud provider APIs (Azure, AWS, Google, etc.)

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How do I know if I need a tool? • Did it take a lot of manual eﬀort to do something? • I documented all the steps with screenshots and commands to run! • Why not as runnable code? • Do you want to make sure everyone does it the same way? • Checklist! • Why not as runnable code? • Can you start over if the worst happens? • Two weeks of downtime as we manually conﬁgure everything • Not as runnable code (just, you know, make sure it still works every so often)

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You need tools

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You need tools …maybe they’re just your own scripts

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Example deploy process

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Example deploy process • bin/run-all-tests

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Example deploy process • bin/run-all-tests • ENV=staging bin/build-and-deploy vessels__predictor --new-version

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Example deploy process • bin/run-all-tests • ENV=staging bin/build-and-deploy vessels__predictor --new-version • Builds a deploy package

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Example deploy process • bin/run-all-tests • ENV=staging bin/build-and-deploy vessels__predictor --new-version • Builds a deploy package • Queries a central database for the next deploy number to use • Uploads package to a repository for archiving • Deploys that version using that package

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Recap

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Recap • DevOps is a culture about

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Recap • DevOps is a culture about • collaboration with other stakeholders

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Recap • DevOps is a culture about • collaboration with other stakeholders • getting your code running as fast as possible,   with as high a quality as possible

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Recap • DevOps is a culture about • collaboration with other stakeholders • getting your code running as fast as possible,   with as high a quality as possible • DevOps is not

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Recap • DevOps is a culture about • collaboration with other stakeholders • getting your code running as fast as possible,   with as high a quality as possible • DevOps is not • tools (not even Microsoft Azure DevOps )

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–Mark Fewster “It is far better to improve the effectiveness of testing ﬁrst than to improve the efﬁciency of poor testing. Automating chaos just gives faster chaos.”