kian

Keybase proof

I hereby claim:

• I am kian on github.
• I am kian (https://keybase.io/kian) on keybase.
• I have a public key ASD6LfcUUNFAkK_n0Yu1vBWJOI7GrPvfHhBn4m2tzhewcAo

To claim this, I am signing this object:

kian

resource "aws_cloudwatch_metric_alarm" "www-production-high-alb-5xx" {
  alarm_name                = "www-production-high-alb-5xx"
  comparison_operator       = "GreaterThanThreshold"
  evaluation_periods        = "1"
  metric_name               = "HTTPCode_ELB_5XX_Count"
  namespace                 = "AWS/ApplicationELB"
  period                    = "60"
  statistic                 = "Sum"
  threshold                 = "30"
  alarm_actions             = ["arn:aws:sns:us-east-1:1234567:slack-alerts"]

kian

Profiling with Xdebug/Webgrind

One of the important steps in improving application performance is profiling. Xdebug produces information for each request. Webgrind is a web interface which ingests this data for analysis.

Setup

The Xdebug extension is already installed for you. On production, it can be enabled as needed.

1. Open public_html/.htaccess
2. Set xdebug.profiler_enable to 1 and save. Alternatively, edit the next line instead to profile select requests.

kian

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Sid": "PapertrailLogArchive",
            "Effect": "Allow",
            "Principal": {
                "AWS": ["arn:aws:iam::719734659904:root"]
            },
            "Action": [

kian

kian@zergtrap ~/src/puppet-placelocal $ yarn --help

  Usage: yarn install [flags]

  Options:

    -h, --help                  output usage information
    -V, --version               output the version number
    --offline                   
    --prefer-offline            

kian

kian@zergtrap ~/src/puppet-placelocal $ yarn add user-home
yarn add v0.15.1
info No lockfile found.
[1/4] Resolving packages...
[2/4] Fetching packages...
[3/4] Linking dependencies...
[4/4] Building fresh packages...
success Saved lockfile.
success Saved 2 new dependencies.
├─ os-homedir@1.0.2

kian

dependencies:
  override:
    - sudo -H pip install awsebcli --upgrade --ignore-installed

test:
  override:
    - echo 'we run the tests after deploy'

deployment:
  stage:

kian

    <script>
            // BEAT MESSAGE
    try {
        window.wixBiSession = {
            initialTimestamp : Date.now(),
            viewerSessionId: 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c)
                    { var r = Math.random()*16|0, v = c == 'x' ? r : (r&0x3|0x8); return v.toString(16); }
            )
        };
        (new Image()).src = 'http://frog.wix.com/bt?src=29&evid=3&pn=1&et=1&v=3.0&vsi=' + wixBiSession.viewerSessionId +

kian

<?php

    private function predictQualityForFilesize($width, $height, $bytes)
    {
        /*
         * There's apparently some overhead in the JPEG file format that
         * scales with the square root of the file's size. Accounting for it
         * causes the bpp-to-quality curves for the different dimensions to
         * line up better.
         *

kian

###
### start nginx container with syslog driver
###

[ec2-user@ip-172-31-48-33 ~]$ sudo docker run -d --name testing2 -P --log-driver=syslog nginx
eef985214f466aaa84c4d969c8843c00ff13e38ecbf4377519c1a15290e6a4d0
[ec2-user@ip-172-31-48-33 ~]$ sudo docker ps
CONTAINER ID        IMAGE               COMMAND                CREATED             STATUS              PORTS                                           NAMES
eef985214f46        nginx               "nginx -g 'daemon of   7 seconds ago       Up 6 seconds        0.0.0.0:32770->80/tcp, 0.0.0.0:32769->443/tcp   testing2