julianobarbosa

Question:
. How to run Ansible without specifying the inventory but the host directly?
. Run a playbook or command with arbitrary host not in the inventory hosts list?
. run ansible with arbitrary host/ip without inventory?

Answer:
Surprisingly, the trick is to append a ,
The host parameter preceding the , can be either a hostname or an IPv4/v6 address.

ansible all -i example.com,

julianobarbosa

# -*- mode: ruby -*- 2 # vi: set ft = ruby : 3 4 VAGRANTFILE_API_VERSION = "2" 5 6 Vagrant.configure( VAGRANTFILE_API_VERSION) do | config | 7 # General Vagrant VM configuration. 8 config.vm.box = "geerlingguy/ centos7" 9 config.ssh.insert_key = false 10 config.vm.synced_folder ".", "/vagrant", disabled: true 11 config.vm.provider :virtualbox do | v | 12 v.memory = 256 13 v.linked_clone = true 14 end 15 16 # Application server 1. 17 config.vm.define "app1" do | app | 18 app.vm.hostname = "orc-app1. test" 19 app.vm.network :private_network, ip: "192.168.60.4" 20 end 21 22 # Application server 2. 23 config.vm.define "app2" do | app | 24 app.vm.hostname = "orc-app2. test" 25 app.vm.network :private_network, ip: "192.168.60.5" 26 end 27 28 # Database server. 29 config.vm.define "db" do | db
db.vm.hostname = "orc-db.test" 31 db.vm.network :private_network, ip: "192.168.60.6" 32 end 33 end This Vagrantfile

julianobarbosa

#!/usr/bin/env python
# -*- coding: utf-8 -*-

import socket
import re
import sys
def check_server(address, port):
	# Create a TCP socket
	s = socket.socket()
	print "Attempting to connect to %s on port %s" % (address, port)

julianobarbosa

import socket

sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.settimeout(2)                                      #2 Second Timeout
result = sock.connect_ex(('127.0.0.1',80))
if result == 0:
  print 'port OPEN'
else:
  print 'port CLOSED, connect_ex returned: '+str(result)

julianobarbosa

for i in `python -m pip list -o | cut -d ' ' -f 1`
do
  python -m pip install -U $i
done

julianobarbosa

// To view the default settings, hold "alt" while clicking on the "Settings" button.
// For documentation on these settings, see: https://aka.ms/terminal-documentation
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    "defaultProfile": "{61c54bbd-c2c6-5271-96e7-009a87ff44bf}",
    "profiles": [
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            "hidden": false,
            "name": "PowerShell 7 Preview",

julianobarbosa

# -*- mode: ruby -*-
# vi: set ft=ruby :

NAME = "zabbix-5-lts"
# All Vagrant configuration is done below. The "2" in Vagrant.configure
# configures the configuration version (we support older styles for
# backwards compatibility). Please don't change it unless you know what
# you're doing.
Vagrant.configure("2") do |config|
  # The most common configuration options are documented and commented below.

julianobarbosa

# DOCKER
alias dstopcont='sudo docker stop $(docker ps -a -q)'
alias dstopall='sudo docker stop $(sudo docker ps -aq)'
alias drmcont='sudo docker rm $(docker ps -a -q)'
alias dvolprune='sudo docker volume prune'
alias dsysprune='sudo docker system prune -a'
alias ddelimages='sudo docker rmi $(docker images -q)'
alias docerase='dstopcont ; drmcont ; ddelimages ; dvolprune ; dsysprune'
alias docprune='ddelimages ; dvolprune ; dsysprune'
alias dexec='sudo docker exec -ti'

julianobarbosa

#1 Add them directly to you code

import pdb; pdb.set_trace()
# or
import ipdb; ipdb.set_trace()

#2: Set them interactively

python -m pdb hello.py

julianobarbosa

Screen Quick Reference

Basic

Description	Command
Start a new session with session name	screen -S <session_name>
List running sessions / screens	screen -ls
Attach to a running session	screen -x
Attach to a running session with name	screen -r