kawanet

function readFile(path: string): Promise<Buffer> {
    return new Promise((resolve, reject) => {
        const readble = (path === "-") ? process.stdin : fs.createReadStream(path);
        readble.on("error", reject).pipe(concatStream(resolve));
    });
}

kawanet

#!/bin/bash

aws ec2 describe-tags --region ap-northeast-1 --output text \
    --query 'Tags[?Key==`Name`].Value|[0]' \
    --filter "Name=resource-id,Values=$(curl -s http://169.254.169.254/latest/meta-data/instance-id/)" | \
    xargs sudo hostnamectl set-hostname 

sudo sh -lc "echo 'preserve_hostname: true' > /etc/cloud/cloud.cfg.d/50_preserve_hostname.cfg"

kawanet

{
  "agent": {
    "metrics_collection_interval": 60,
    "logfile": "/opt/aws/amazon-cloudwatch-agent/logs/amazon-cloudwatch-agent.log",
    "region": "ap-northeast-1"
  },
  "metrics": {
    "metrics_collected": {
      "cpu": {
        "measurement": [

kawanet

#!/bin/bash

docker="$(egrep ':/docker/[0-9a-f]+$' /proc/self/cgroup | head -1)"
docker="${docker##*/}"
hostname "docker-${docker:0:8}"

kawanet

#!/bin/sh

node --max-old-space-size=1000 -e 'console.log(Math.floor(v8.getHeapStatistics().heap_size_limit/1024/1024))'
# 1049

node -e 'console.log(Math.floor(v8.getHeapStatistics().heap_size_limit/1024/1024))'
# 1456

node --max-old-space-size=2000 -e 'console.log(Math.floor(v8.getHeapStatistics().heap_size_limit/1024/1024))'
# 2066

kawanet

#!/bin/sh

# @see https://github.com/docker/for-mac/issues/770

docker run -d -v /var/run/docker.sock:/var/run/docker.sock -p 1234:1234 alpine/socat TCP-LISTEN:1234,fork UNIX-CONNECT:/var/run/docker.sock

kawanet

#!/bin/sh

# Name: aws-describe-to-md.sh
# Gist: https://gist.github.com/kawanet/5c135535d9bf49722b96cab29fa94708
# Author: 2019 Yusuke Kawasaki
# License: MIT
#
# Download:
# curl -o aws-describe-to-md.sh https://gist.githubusercontent.com/kawanet/5c135535d9bf49722b96cab29fa94708/raw/aws-describe-to-md.sh
#

kawanet

openssl aes-256-cbc -e -in /dev/null -pass pass: | base64 | cut -c 16-31

kawanet

curl https://raw.githubusercontent.com/ncopa/su-exec/master/su-exec.c | gcc -Wall -Werror -g -xc - -o su-exec

kawanet

package net.kawa.whitespacetests;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;

/**
 * @see https://developer.android.com/guide/topics/resources/string-resource
 */