[2020.01 Meetup] [TALK 1] SRE is Devops or Devops is SRE? - Julia Lamenza

I will help you to understand this buzzword and show my SRE routine inside HostelWorld, let's go!

1. SRE is DevOps or DevOps is SRE? @jlamenza18
2. @jlamenza18 ➔ Brazilian ➔ +8 years of experience ➔ I worked mostly on Ops team ➔ Became SRE | DevOps almost 5 year ago ➔ I love to travel ➔ I believe DevOps is more culture than role ➔ In favor of gender equity and pro diversity ➔ Work at Hostelworld as SRE linkedin.com/in/julialamenza/ jlamenza@gmail.com JULIA LAMENZA
3. SRE What is it ? Site reliability engineering (SRE) was born at Google in 2003, when the first team of software engineers was tasked to make Google’s already large-scale sites more reliable, efficient, and scalable. @jlamenza18
4. What they do? Site reliability engineers create a bridge between development and operations. They split their time between operations/on-call duties and developing systems and software that help increase site reliability and performance. @jlamenza18
5. ...and DevOps? The concept of DevOps is all about combining development and operations @jlamenza18
6. Is more than just fill up this “gap”, but also culture. @jlamenza18 ...and DevOps?
7. DevOps X SRE ➢ DevOps is more of a cultural aspect. You don’t do Devops buying cool tools. ➢ SRE is the practice of creating and maintaining a high availability service, you can say that SRE is the sysadmin's fashion friend. @jlamenza18
8. DevOps X SRE ➢ DevOps are more focus on automation part and SRE more on the aspects like system availability, observability, and scale considerations ensuring your service. @jlamenza18 DevOps and SRE can still be confusing at some level but it all depends on the company and your job profile interpretation.
9. @jlamenza18 SRE CREW
10. ➢ The team was created about a year ago ➢ We are more Ops than Dev ➢ 90% is inside DataCenters ➢ Migrate applications to cloud will be our main challenge ➢ We will have some changes inside our team by 2020 @jlamenza18
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12. @jlamenza18 SRE IDEA • To success you need to set a precise numerical target for system availability • Metrics are important to predict system performance gradually • To do that we need 3 targets
13. @jlamenza18 SLIs SLOs SLAs Service Level Indicator is a measurement the service provider uses for the goal. Service Level Objective is a goal that service provider wants to reach. Service Level Agreement is a contract that the service provider promises customers on service availability, performance, etc. The SLA, SLO, and SLI are based on the assumption that the service will not be available 100%. Instead, you need to determine a value for this availability, for example, 99.5%.
14. @jlamenza18 ➢ As we don't have our SLOs defined we don't have error budget ➢ We plan to define our targets this year and
15. @jlamenza18 Monitoring
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17. @jlamenza18 Metrics
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21. @jlamenza18 Class SRE implements DevOps { }
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23. @jlamenza18 Improve culture
24. @jlamenza18 ➢ Culture and Mindset can’t change overnight. ➢ You can’t expect the success in implementing SRE| DevOps in one or two days. It may take days, weeks, and months to get matured. ➢ Software no longer stays within role boundaries, shouldn't be different within companies
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