Google Custom Search API 使う

概要

画像をたくさん集めたいのでGoogle画像検索的なものがないか調べてみた。下の「経緯」はどうでもいい話なので読み飛ばしOK

経緯

画像を検索するわけだから Google Image Search APIとかでぐぐるとそっくりそのままの名前のAPIが出て来るが、Deprecatedになっていて、現在は同機能がGoogle Custom Search APIに統合されている。

無料だと100クエリ/dayまで無料で使えるようなのと、1000クエリが$5で購入できるらしいので今回はそんなに負担にならなさそうなのでよしとした。

使い方

大体ここみればわかる -> Google Custom Search API

scalatra / playで使えるscalaデータベースライブラリ学習

概要

scalaのデータベースまわりを知る

Play

参考: ScalaDatabase - 2.4.x

用語:

• jdbc 下に示すようなDBとの接続API JDBCとは何か
• h2 H2 database
• SQLite
• PostgreSQL
• MySQL

how to install Java8 and IntelliJ IDEA with Chef

Overview

this is continuation of the entry: akzero.hatenablog.com

and you'll create project like this: basic-development-machine

we should learn:

• Chef Overview
• Chef Zero Provisioner
• Chef Solo Provisioner
• Berkshelf
• Roles

version

VirtualBox: 5.1.6 Vagrant: 1.8.5 ChefDK: 0.18.26

preparation

$ vagrant plugin install vagrant-vbguest
$ vagrant plugin install vagrant-omnibus

refer to:

• vagrant-vbguest
• vagrant-omnibus

todos

find cookbooks from Chef Supermarket

• java
• idea

$ vi Berksfile

write:

source 'https://supermarket.chef.io'

cookbook 'java'
cookbook 'idea'

download cookbooks

$ berks vendor cookbooks

specify settings

$ mkdir roles
$ cd roles
$ vi java.json
$ vi idea.json

• java.json

{
  "name":"java",
  "description":"Install Oracle Java",
  "default_attributes":{
    "java":{
      "install_flavor":"oracle",
      "jdk_version":"8",
      "oracle":{
        "accept_oracle_download_terms":true
      }
    }
  },
  "run_list":[
    "recipe[java]"
  ]
}

• idea.json

{
  "name":"idea",
  "description":"Install IntelliJ IDEA",
  "default_attributes":{
    "idea":{
      "setup_dir":"/home/vagrant",
      "user":"vagrant",
      "version":"2016.2.4"
    }
  },
  "run_list":[
    "recipe[idea::default]"
  ]
}

provisioning settings (uses xubuntu 16.04 box we created at previous entry, it's on my github repository)

$ vi Vagrantfile

write

# -*- mode: ruby -*-
# vi: set ft=ruby :

Vagrant.configure(2) do |config|
  config.vm.box = "xubuntu-16.04-desktop-amd64.box"
  config.vm.box_url = "https://github.com/akzero53/xubuntu-16.04-vagrant-box/releases/download/v1.0.0/xubuntu-16.04-desktop-amd64.box"

  config.omnibus.chef_version=:latest
  config.vm.provision "chef_solo" do |chef|
    chef.roles_path = ["roles"]
    chef.add_role("java")
    chef.add_role("idea")
  end

  config.vm.provider "virtualbox" do |vb|
    vb.gui = true
    vb.memory = "2048"
  end
end

at last

$ vagrant up --provision

how to create xubuntu 16.04 LTS vagrant base box

Overview

this is how to create vagrant base box for xubuntu 16.04.

you'll get box like: xubuntu-16.04-desktop-amd64.box after this todos.

environment

• OSX 10.11.6

preparation

• VirtualBox 5.0.18 | 5.0.26 | 5.1.6
• vagrant 1.7.4 | 1.8.5

todos

install xubuntu to virtualbox

• download: xubuntu-16.04-desktop-amd64.iso
• virtualbox: 'New'
  • Name: xubuntu-16.04-desktop-amd64
  • 'Create'
  • set maximum 'File size', see: Creating a Base Box - Disk Space if you forget this, you'll be lack of disk space.
  • disable unnecessary settings, see: Creating a Base Box - Peripherals
  • 'Start'
    • and mount iso to install
    • username, password must be "vagrant"

after installation

log in with vagrant user

install openssh-server

$ sudo apt-get install openssh-server -y

if you want to ssh to this machine from host os, configure 'Settings' -> Network -> Advanced -> 'Port Forwarding'

• Host IP: 127.0.0.1
• Host Port: 2222
• Guest IP: 10.0.2.15
• Guest Port: 22

and from Host OS

$ ssh vagrant@127.0.0.1 -p 2222

set root password vagrant

$ sudo passwd
vagrant
vagrant

sudo with no password

$ sudo visudo

and rewrite line [A] with [B]

[A] %sudo ALL=(ALL:ALL) ALL
[B] %sudo ALL=(ALL) NOPASSWD: ALL

put vagrant public key

$ cd ~
$ mkdir .ssh
$ cd .ssh
$ wget https://raw.githubusercontent.com/mitchellh/vagrant/master/keys/vagrant.pub
$ mv vagrant.pub authorized_keys
$ chmod 600 authorized_keys

configure sshd_config

$ sudo vi /etc/ssh/sshd_config

and rewrite line [A] with [B], add [C]

[A] #AuthorizedKeysFile %h/.ssh/authorized_keys
[B] AuthorizedKeysFile %h/.ssh/authorized_keys
[C] UseDNS no

if you want to get smaller box

# Zero free space to aid VM compression
dd if=/dev/zero of=/EMPTY bs=1M
rm -f /EMPTY

refer to: Making smaller base boxes #343

shut down virtual machine

package box

in the Host OS

$ vagrant package --base xubuntu-16.04-desktop-amd64

check

$ vagrant box add xubuntu-16.04-desktop-amd64.box package.box
$ vagrant init xubuntu-16.04-desktop-amd64.box

if you want to launch GUI

$ vi Vagrantfile

and configure:

  # Provider-specific configuration so you can fine-tune various
  # backing providers for Vagrant. These expose provider-specific options.
  # Example for VirtualBox:
  #
  config.vm.provider "virtualbox" do |vb|
    # Display the VirtualBox GUI when booting the machine
    vb.gui = true

    # Customize the amount of memory on the VM:
    # vb.memory = "1024"

    vb.customize ["modifyvm", :id, "--clipboard", "bidirectional"]
  end

and, you'll need vagrant-vbguest. more information: vagrant-vbguest

$ vagrant plugin install vagrant-vbguest

finally start the machine

$ vagrant up --provider virtualbox