Xeoncross

Articles

• https://medium.com/@Martynas/golang-docker-and-databases-125a5c1894a8
• https://medium.freecodecamp.org/how-to-set-up-continuous-deployment-in-your-home-project-the-easy-way-41b84a467eed
• https://docs.docker.com/samples/library/python/

Dockerfile

• Example Go Dockerfile's: https://gist.github.com/Xeoncross/862d659e48b05d684dddad0ceaf36029

Xeoncross

package main

import (
	"fmt"
	"io/ioutil"
	"log"
	"os"
	"path/filepath"
)

Xeoncross

type TrimReader2 struct{ io.Reader }

var trailingws = regexp.MustCompile(` *\r?\n`)

func (tr TrimReader2) Read(bs []byte) (int, error) {
	// Perform the requested read on the given reader.
	n, err := tr.Reader.Read(bs)
	if err != nil {
		return n, err

Xeoncross

package main

import (
	"fmt"
	"log"
	"net/http"
	"os"
	"os/exec"
	"strconv"
	"strings"

Xeoncross

package main


func countOpenFiles() int {
	out, err := exec.Command("/bin/sh", "-c", fmt.Sprintf("lsof -p %v | wc -l", os.Getpid())).Output()
	if err != nil {
		// log.Println("count files", err)
		return 0
	}
	n, err := strconv.Atoi(strings.TrimSpace(string(out)))

Xeoncross

package main

import (
	"fmt"
	"net/http"
	"sync/atomic"
	"time"
)

var requestsPerMinute uint64

Xeoncross

package main

import (
	"bufio"
	"bytes"
	"encoding/hex"
	"fmt"
	"io"
	"os"

Xeoncross

Hyperpad

Shared, encrypted, synced live WebRTC document editor

You have to run a signalhub server (or some other WebRTC signaling server you modify hyperpad to use). Then just serve up hyperpad using any HTTP server.

# 1. Download and run hyperpad
$ git clone git@github.com:noffle/hyperpad
$ cd hyperpad

Xeoncross

package main

import (
	"encoding/base64"
	"io"
	"os"
	"strings"
)

// MimeWrapWriter adds a newline pair (CRLF) every 76 bytes

Xeoncross

/*
https://play.golang.org/p/iWDGHj_-X_

This programs generates 32 random bytes formatted à la "hexdump -C".

It does it in just 2 lines of code using the power of the standard library
and a trick to convert a func Read([]byte) (int, error) into an io.Reader.

Inspiration: see HandlerFunc in net/http