tmux's prefix key The default tmux prefix key is Ctrl-b, for the remainder of this article, we will refer to the prefix key as prefix. The convention prefix,key means pressing prefix and the key after the prefix is released. tmux's set-hook is my new favorite feature. It is insanely powerful, and opens up the possibilities for a new level of tmux scripting. tmux hook basics
This new Quick Start automatically deploys HTTPS endpoints and AWS Lambda functions for implementing webhooks, to enable event-driven integration between Git services and Amazon Web Services (AWS) services on the AWS Cloud. The Quick Start implements the endpoints and required code to trigger a Lambda function that zips up the code in your Git repository and places it in Amazon Simple Storage Serv
Dockerでいろいろやりたいことがあったので、いろいろ調べてました。 具体的には 設定ファイルのテンプレート化 設定の動的な管理と、変更に伴う継続的な設定の反映 要するに設定が変更されたら設定ファイルが更新されてミドルウェアがリロードされると でまあEntrykitとconfdを教えてもらったんですが、継続的な設定の更新を考えるとconfdがよかろうと。codepの機能は必要ですが、それだけならdumb-initで十分そうでした。 で、以下のようなファイルを用意。 Dockerfile FROM nginx:latest MAINTAINER Genki Sugawara <sgwr_dts@yahoo.co.jp> ENV DUMB_INIT_VERSION 1.1.3 ENV CONFD_VERSION 0.11.0 RUN apt-get update RUN apt-get in
Itamae Configuration management tool inspired by Chef, but simpler and lightweight. Formerly known as Lightchef. Simple and lightweight configuration management tool inspired by Chef. CHANGELOG Concept Chef-like DSL (but not compatible with Chef) Simpler and lighter weight than Chef Only recipes Idempotent Installation $ gem install itamae Getting Started Create a recipe file as recipe.rb: And the
WatchmanA file watching service Watches files and records, or triggers actions, when they change. Watchman exists to watch files and record when they change. It can also trigger actions (such as rebuilding assets) when matching files change. ConceptsWatchman can recursively watch one or more directory trees (we call them roots).Watchman does not follow symlinks. It knows they exist, but they show
There is not problems with SSH config format: it works for decades and is going to work for my children I guess. This utility will die, but one will update his ~/.ssh/config to access some network server. The problem with SSH that it really hard to scale. I am not quite sure about other people jobs, but on my current and previous jobs I was used to maintain quite large sets of records in SSH confi
Deliver infrastructure as codeTerraform codifies cloud APIs into declarative configuration files. AdoptCompose infrastructure as code in a Terraform file using HCL to provision resources from any infrastructure provider. BuildInfrastructure automation workflows to compose, collaborate, reuse, and provision infrastructure as code across IT operations and teams of developers. StandardizeEstablish gu
Barman - Backup and Recovery Manager for PostgreSQL by 2ndQuadrant. OmniPITR - Advanced WAL File Management Tools for PostgreSQL. pg_probackup – A fork of pg_arman, improved by @PostgresPro, supports incremental backups, backups from replica, multithreaded backup and restore, and anonymous backup without archive command. pgBackRest - Reliable PostgreSQL Backup & Restore. pg_back - pg_back is a sim
最近、TerraformやCloudFormationみたいに、JSONや独自DSLなどでかっこよくAWSを管理するツールがいろいろ出てきてます。 こういうツールは便利そうだなとは思うんですが、なんかふと、ユーザがホントに求めているものはコレなんだろうか？と思いました。 なんだかんだ言って、一番多く使われているサーバ管理ツールは『Excelサーバ一覧』なのではｗ？ じゃあExcelで同じようなことが出来ればそれが一番いいのでは？と。 というわけで、Excelは手元になくてキツイので、今回はGoogleスプレッドシートでAWSのサーバ構成管理をやってみました。 使い方 事前準備 サンプルのスプレッドシートをコピーする 『ツール』 -> 『スクリプトエディタ』 -> config.gsを編集 AWS_ACCESS_KEY_ID、AWS_SECRET_ACCESS_KEYにAWSのアクセスキーを
import org.scalameter.api._ object RangeBenchmark extends Bench.ForkedTime { val ranges = for { size <- Gen.range("size")(300000, 1500000, 300000) } yield 0 until size measure method "map" in { using(ranges) curve("Range") in { _.map(_ + 1) } } } ScalaMeter is a microbenchmarking and performance regression testing framework for the JVM platform that allows expressing performance tests in a way whi
Most web based tech startups are deploying to cloud hosted Linux machines. At the same time, only a small percentage of engineers actually run Linux on their development desktops. Enter Vagrant, an easy way to provision local Linux development environments in a virtual machine. At my current startup, we’re using Vagrant with our regular Chef recipes so that the configuration of development matches
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