cyantarek

• Kubernetes
  • Kubernetes: Up and Running, 2nd Edition
  • Production Kubernetes
  • Managing Kubernetes
  • Cloud Native Infrastructure
  • Container Security
• SRE
  • The Site Reliability Workbook
  • 97 Things Every SRE Should Know
• Systems Performance: Enterprise and the Cloud

cyantarek

package main

import (
	"fmt"
	"runtime"
)

// whoCalledMe is a function that returns the name, fileName, and lineNumber of the caller that called function X
// the code doesn't check for edge cases
func whoCalledMe() (callerName, callerFileName string, callerLineNumber int) {

cyantarek

Configure environment variable

export DATABASE_URL=postgres://postgres@localhost/dbname?sslmode=disable 

Run in CLI

go run main.go -page 1

cyantarek

1. Download docker-compose.yml to dir named sentry
2. Change SENTRY_SECRET_KEY to random 32 char string
3. Run docker-compose up -d
4. Run docker-compose exec sentry sentry upgrade to setup database and create admin user
5. (Optional) Run docker-compose exec sentry pip install sentry-slack if you want slack plugin, it can be done later
6. Run docker-compose restart sentry
7. Sentry is now running on public port 9000

• https://docs.docker.com/compose/compose-file/#env_file

cyantarek

Go (Golang) Standard Library Interfaces (Selected)

This is not an exhaustive list of all interfaces in Go's standard library. I only list those I think are important. Interfaces defined in frequently used packages (like io, fmt) are included. Interfaces that have significant importance are also included.

All of the following information is based on go version go1.8.3 darwin/amd64.

cyantarek

package main

import (
	"crypto/aes"
	"crypto/cipher"
	"crypto/rand"
	"fmt"
	"io"
	"net"
)