yogeek

version: "3.4"

services:

  elasticsearch:
    # Remember to "sysctl -w vm.max_map_count=262144" on swarm nodes
    image: docker.elastic.co/elasticsearch/elasticsearch:5.6.5
    environment:
      network.host: 0.0.0.0
      discovery.zen.ping.unicast.hosts: elasticsearch

yogeek

if [ -z "${VAR}" ]; then
    echo "VAR is unset or set to the empty string"
fi
if [ -z "${VAR+set}" ]; then
    echo "VAR is unset"
fi
if [ -z "${VAR-unset}" ]; then
    echo "VAR is set to the empty string"
fi
if [ -n "${VAR}" ]; then

yogeek

# /etc/docker/daemon.json 
# (stop docker before editing et start after)
{
    "data-root": "/data/docker", 
    "hosts": [
        "unix:///var/run/docker.sock", 
        "tcp://0.0.0.0:2376"
    ], 
    "insecure-registries": [
        "registry-host:5000"

yogeek

# Interdire les utilisateurs d'installer des extensions

HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Google\Chrome\ExtensionInstallBlacklist
  ValueName = 1
  Value Type = 	REG_SZ
  Value = *

# Autoriser certaines extensions

HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Google\Chrome\EnabledPlugin

yogeek

# List of top processes ordered by RAM and CPU use in descendant form
ps -eo pid,ppid,cmd,%mem,%cpu --sort=-%mem | head

yogeek

---

- hosts: localhost
  vars:
    docker_machine_version: v0.14.0
  tasks:

    - name: Install Docker Machine
      get_url:
        url: "https://github.com/docker/machine/releases/download/{{ docker_machine_version }}/docker-machine-linux-x86_64"

yogeek

# Example : waiting for DB and Elasticsearch to be ready before launching a service
# The svc docker image must contain the start-when-ready.sh script

services:

  svc:
    image: svc
    environment:
      READINESS_CONDITION: '[ $$(curl --write-out %{http_code} --silent --output /dev/null http://elasticsearch:9200/_cat/health?h=st) = 200 ] && nc -w 1 -z $$DB_HOST $$DB_PORT 2>/dev/null'
      READINESS_SLEEP: 5

yogeek

# Adapted from <https://superuser.com/questions/332252/creating-and-formating-a-partition-using-a-bash-script> 

(
echo d # Delete sda2 partition table
echo 2 # Default = sda2 
echo n # Add a new sda2 partition
echo p # Primary partition
echo 2 # Partition number
echo    # First sector (Accept default: 2099200)
echo    # Last sector (Accept default: varies, e.g 104857599)

yogeek

# Script to switch between HTTP and SSH git remote URL

gitswitch () {
  if [[ "$(git remote -v)" == "" ]]
  then
    echo "No remote configured. Use 'git remote add' to set one"
    return
  fi

  remoteRoot=$(git remote -v | head -1 | grep root)

yogeek

./ansible.sh -i inventories/dev -c local -m template -a "src=file.j2 dest=file.txt" 127.0.0.1

 # Online tool
 https://cryptic-cliffs-32040.herokuapp.com/
 
 # https://stackoverflow.com/questions/35407822/how-can-i-test-jinja2-templates-in-ansible