scmrus

version: "3.8"

services:
  traefik:
    image: traefik:v2.4.9
    deploy:
      replicas: 1      
      placement:
        constraints: [node.role == manager]
    ports:

scmrus

version: "3.9"

services:
  traefik:
    # Use the latest v3.0.x Traefik image available
    image: traefik:v3.0
    ports:
      # Listen on port 80, default for HTTP, necessary to redirect to HTTPS
      - target: 80
        published: 80

scmrus

Get Public IP

DNS

Google

dig o-o.myaddr.l.google.com txt @ns1.google.com +short
# OR
nslookup -type=txt o-o.myaddr.l.google.com ns1.google.com

scmrus

UPDATE (March 2020, thanks @ic): I don't know the exact AMI version but yum install docker now works on the latest Amazon Linux 2. The instructions below may still be relevant depending on the vintage AMI you are using.

Amazon changed the install in Linux 2. One no-longer using 'yum' See: https://aws.amazon.com/amazon-linux-2/release-notes/

Docker CE Install

sudo amazon-linux-extras install docker
sudo service docker start

scmrus

<?php
/**
 * @link http://stackoverflow.com/questions/13865149/speeding-up-xml-schema-validations-of-a-batch-of-xml-files-against-the-same-xml
 */

$mapping = [
    'http://www.w3.org/2002/08/xhtml/xhtml1-transitional.xsd' => 'schema/xhtml1-transitional.xsd',
    'http://www.w3.org/2001/xml.xsd'                          => 'schema/xml.xsd',
];

scmrus

#!/usr/bin/env bash
# fork from https://gist.github.com/jakemhiller/d342ad51505addf78ec628a16fd3280f

changed_files="$(git diff-tree -r --name-only --no-commit-id $1 $2)"

check_run() {
	echo "$changed_files" | grep --quiet "$1" && eval "$2"
}

check_run package.json "npm prune && npm install"

scmrus

https://kubernetes.io/docs/reference/kubectl/cheatsheet/

Setting Up kubectl

export KUBECONFIG={cert-file} 
kubectl config use-context {context}

Discover

scmrus

#!/bin/bash

# Copyright © 2017 Google Inc.
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software

scmrus

# Quick debug network traffic between nginx and php-fpm
# Got from:
# http://systembash.com/content/simple-sysadmin-trick-using-tcpdump-to-sniff-web-server-traffic/

# Just a flow of everything looking like a string
tcpdump -nl -w - -i eth0 -c 500 port 9090 | strings
# Request heads
sudo tcpdump -nl -w - -i eth0 -c 500 port 9090 | strings | grep -E -A5 "^(GET|PUT|POST) "

# strace processes/sub-processes 

scmrus

sudo su -
mkdir -p /opt/bin
curl -L https://github.com/docker/compose/releases/download/1.12.0/docker-compose-`uname -s`-`uname -m` >/opt/bin/docker-compose
chmod +x /opt/bin/docker-compose