Zero downtime development with Elixir and Kubernetes

Zero downtime development with Elixir and Kubernetes by Bartosz Górka

Transcript

1. ZERO DOWNTIME DEVELOPMENT BartoszGorka96
2. Common issues Downtimes cost money Downtimes are risky and unpredictable BartoszGorka96
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4. Development Database Application BartoszGorka96
5. Our focus We are most focused on deployment stage and often ignore data migration BartoszGorka96
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7. - Task 1 - The risks of data migration BartoszGorka96
8. Risks - data migration process 1. Underestimating time and effort 2. Doing all at once 3. Performance limitations 5. No rollback plan 4. Poor testing and migrating BartoszGorka96
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10. - Task 2 - Actions which we can do to prevent bugs BartoszGorka96
11. Risks - data migration process 1. Underestimating time and effort 2. Doing all at once 3. Performance limitations 5. No rollback plan 4. Poor testing and migrating R E
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12. We can use 1. down and up instead only change 2. raw sql instead structures 3. step by step - to be able to rollback changes 5. concurrently index build 4. drop only when confirmed BartoszGorka96
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14. Example Add new column with NOT NULL constant* * with default value also BartoszGorka96
15. Summary Always be careful with database migration. It’s is surely safe to take a backup before execute migration. Always think of backward compatibility usually without reverting migration. BartoszGorka96
16. BartoszGorka96 Please give me a feedback