Engineering Enablement
Engineering Enablement Podcast
How Slack fully automates deploys and anomaly detection with Z-scores
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How Slack fully automates deploys and anomaly detection with Z-scores

Slack's Staff Site Reliability Engineer Sean Mcllroy, shares Slack's journey to fully automating their deployment process.

This week we’re joined by Sean Mcllroy from Slack’s Release Engineering team to learn about how they’ve fully automated their deployment process. This conversation covers Slack’s original release process, key changes Sean’s team has made, and the latest challenges they’re working on today.

Listen to this podcast on Spotify, Google, or Apple Podcasts.

Discussion points:

  • (1:34): The Release Engineering team

  • (2:13): How the monolith has served Slack

  • (3:24): How the deployment process used to work

  • (6:23): The complexity of the deploy itself

  • (7:39): Early ideas for improving the deployment process

  • (9:07): Why anomaly detection is challenging

  • (10:32): What a Z-score is

  • (13:23): Managing noise with Z-scores

  • (16:49): Presenting this information to people that need it

  • (19:54): Taking humans out of the process

  • (23:13): Handling rollbacks

  • (25:27): Not overloading developers with information

  • (28:26): Handling large deployments

Read the full transcript here

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