Author Archives: bullgare

How go code is being compiled to assembler code

https://go.godbolt.org/z/31FyJ3 I was interested in comparing line 15 vs line 17 of the following code:

E2E tests in go

I tried it via ginkgo and gomega. It has Agouti with WebDriver support out of the box, but I didn’t use it as we have grpc API. That’s the example (table tests):

What is teamlead’s first duty

Sarah Mei «We think awful code is written by awful devs. But in reality, it’s written by reasonable devs in awful circumstances.» (source) So, teamlead is there to improve circumstances.

ORM for go

https://github.com/Masterminds/squirrel Never used it as we always write SQL queries manually. But looks okay for ORM (well, actually a query-builder).

Kubernetes’ cronjobs

That’s what it is — https://kubernetes.io/docs/concepts/workloads/controllers/cron-jobs/ Get all cronjobs in env:

Get info on exact cronjob:

Get pods with this cronjob:

Get logs of cronjob

you can add -f for live updating logs and -p for watching logs of previous pod.

Crontab time format

That’s about it: min hour day/month month day/week Execution time 30 0 1 1,6,12 * — 00:30 Hrs  on 1st of Jan, June & Dec. 0 20 * 10 1-5 –8.00 PM every weekday (Mon-Fri) only in Oct. 0 0 1,10,15 * * — midnight on 1st ,10th & 15th of month 5,10 0 10 …

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How to make grpc call from shell

1 https://github.com/grpc/grpc/blob/master/doc/command_line_tool.md

2 https://github.com/fullstorydev/grpcurl

How to analyze the performance of your go application in production

You should definitely use chi’s middleware for running pprof and stuff in your admin panel. That’s the repo — https://github.com/go-chi/chi That’s the profiler — https://github.com/go-chi/chi/blob/master/middleware/profiler.go

Using GOPROXY with go mod

PostgreSQL: TOP slow queries