diff options
Diffstat (limited to 'content/post/2015-08-22-deployment-on-friday.md')
| -rw-r--r-- | content/post/2015-08-22-deployment-on-friday.md | 36 |
1 files changed, 0 insertions, 36 deletions
diff --git a/content/post/2015-08-22-deployment-on-friday.md b/content/post/2015-08-22-deployment-on-friday.md deleted file mode 100644 index eba7786..0000000 --- a/content/post/2015-08-22-deployment-on-friday.md +++ /dev/null @@ -1,36 +0,0 @@ ---- -date: 2015-08-22T00:00:00Z -summary: In which we deploy our code on a Friday afternoon. -title: Deploying to production on a Friday ---- - -There's a lot of reasons to not deploy code to production on a Friday. If something goes wrong, you -might end up spending your Friday night, or worst, your entire weekend, fixing some issue. But -there's no reasons Friday should be different from any other day. It's not OK to spend a night -during the week fixing an issue in production. - -To be in a place where you can deploy code at any time requires a few things: tools, automation and -culture. - -In my team, every body is on call: SWEs and SREs. We all share the same responsibilities. There's no -rule saying that deploying on Friday is forbidden. We don't do continuous deployment, and we also -don't have a schedule saying which days of the week we deploy. - -Artifacts are build by our build system and pushed to some archives. We don't deploy artifacts that -we build on a developer laptop. - -Before deploying an artifact to production, we usually run it as a a canary on some shards. -Depending of the service, it can be for a few hours up to a couple of weeks. Once we are confident -in this artifact, after reviewing our dashboards, we know it's going to be safe to deploy it. - -We communicate with the team (and outside the team) before doing a deployment. A deploy starts with -a ticket in Jira, saying what we are going to deploy, how long it will take, and what are the steps -to validate, and do a rollback. At least one another person need to review the ticket and give his -consent. If that person has some concerns, the deploy is pushed back, and we figure out what's -wrong. On-call has to ACK the procedure before starting too. - -Our deployments are hooked with our alerts. If something goes wrong, the deployment is paused, or -roll backed. - -Once it becomes easy to build test deploy and rollback, then there's no reasons to not deploy code on -Friday. |