ybogdanov

Привет. Меня зовут Дима Унковский, я – ведущий разработчик в команде Platform в Grammarly, и я ищу хороших DevOps ребят в нашу команду.

Что делает ваша команда?

Наша область ответственности – облачная инфраструктура, сопутствующие инструменты и инфраструктурные сервисы. Улучшая их, мы делаем все, чтобы продуктовым командам было удобнее разрабатывать и поддерживать продукт Grammarly.

Что делает компания? Как вы работаете?

ybogdanov

namespace: nginx
containers:

  # "shared" is the data volume container that holds nginx config files and static html files for
  # the "nginx" container. It is empty from the beginning, but once "configs" container is started
  # files are copied to the "shared" container with rsync(1)
  # 
  # This container is designed to be persistent across deploys of both "nginx" and "configs"
  # containers.
  # 

ybogdanov

# This is an example of a high-level application (service) that can run along with
# platform agents, write metrics and logs to them.
namespace: example
containers:

  app:
    image: alpine:3.2
    # We wrote a simple program that on every tick prints the iterator,
    # increments a metric in StatsD and writes a line to the log file
    cmd: |-

ybogdanov

# This is a manifest that describes "platform" agents that we run on every instance.
# It includes auxilary services that work alongside with the application containers 
# to provide logging and monitoring.
#
# This file looks a bit tough, but that's what happens when you meet the reality.
# We have also pruned it a bit to remove our company specifics.
# 
# You may notice "env", "role" and "track" variables. We specify them as EC2 instance
# tags and pass them to rocker-compose on every run. This allows us to distinguish
# instances and do basic service discovery and A/B testing.

ybogdanov

# Build stage: will start from google/golang:1.4 and compile app.go
FROM google/golang:1.4
ADD . /src
WORKDIR /src
# Will result in putting app.o to the working directory /src
RUN CGO_ENABLED=0 go build -a -installsuffix cgo -v -o app.o app.go
# Will make app.o available in the following FROM
EXPORT app.o

# Describe "run" image based on "busybox", weights 4.3MB

ybogdanov

// ==UserScript==
// @name       OLX Previews
// @namespace  http://use.i.E.your.homepage/
// @version    0.1
// @description  Makes OLX (slando) render large image previews
// @match      http://kiev.ko.olx.ua/nedvizhimost*
// @copyright  2015+, Yuriy Bogdanov
// ==/UserScript==

;(function(){

ybogdanov

-module(brute).
-export([brute/1]).

brute_(N, M, _, O) when N == M ->
    O;
brute_(N, M, L, O) ->
    [string:right(integer_to_list(N), L, $0) | brute_(N + 1, M, L, O)].
    
brute(N) ->
    brute_(0, math:pow(10, N), N, []).

ybogdanov

// Заюзай node-sync v0.1.9beta2, в ней есть .asyncMiddleware()
// это маленькая магия, которая позволяет писать "синхронные" функции типа function(req, res, next)
// еще не знаю, как ее лучше назвать...

app.post('/q/register', function(req, res) {
    
  var mysql = database.spawnConnection();
    
  // А можно реализацию beginSync?
  mysql.beginSync();

ybogdanov

    createEdge : function(e, callback)
    {
        var self = this, tryNum = 0,
            isolateRetryAttempts = 20,
            isolateRetryInterval = 1000;

        callback = callback || function(){};

        if (!(e instanceof Edge) || !e.isValid()) {
            return callback(new Error("Invalid edge passed"));

ybogdanov

function getUserSummary(userId, callback)
{
    async.parallel({
        
        user : function(callback) {
            db.users.findUserById(userId, callback)
        },
        
        tweets : function(callback) {
            db.users.getTweets(userId, callback)