Pierre pfrayer

Updated on medium

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Complete solution for websites hosting

This gist contains example of how you can configure nginx reverse-proxy with autmatic container discovery, SSL certificates generation (using Let's Encrypt) and auto updates.

Features:

Automatically detect new containers and reconfigure nginx reverse-proxy
Automatically generate/update SSL certificates for all specified containers.
Watch for new docker images and update them.
Ban bots and hackers who are trying to bruteforce your website or do anything suspicious.

>>> docker exec -it CONTAINERID /bin/sh
/app # telnet
/bin/sh: telnet: not found

/app # apk update
fetch http://dl-cdn.alpinelinux.org/alpine/v3.7/main/x86_64/APKINDEX.tar.gz
fetch http://dl-cdn.alpinelinux.org/alpine/v3.7/community/x86_64/APKINDEX.tar.gz
v3.7.0-243-gf26e75a186 [http://dl-cdn.alpinelinux.org/alpine/v3.7/main]
v3.7.0-229-g087f28e29d [http://dl-cdn.alpinelinux.org/alpine/v3.7/community]

How to get a fancier bash prompt PS1 inside a docker container

Today I wanted to make a recording of me running some commands inside a docker-container.

❯ docker-compose run app bash
root@e9bb2af4dc11:/usr/local/go/src/example.com/dev/project#

Needless to say it looked a bit bland with no colors and a long prompt that prevents me from recording a small terminal and show the full commands I'm

Using Python to check if remote port is open and accessible.

Taken from http://snipplr.com/view/19639/test-if-an-ipport-is-open/

Usage:

Open a Python prompt
Run the script in is_port_open.py
Call isOpen with a host and a port parameter. Example: isOpen("www.google.com", 80)

	---
	- hosts: docker-nodes
	become: true
	vars:
	docker_swarm_addr: "{{ hostvars[inventory_hostname]['ansible_' + docker_swarm_interface]['ipv4']['address'] }}"
	docker_swarm_cert_expiry: '2160h0m0s' # Validity period for node certificates (default 2160h0m0s)
	docker_swarm_dispatcher_heartbeat_duration: '5s' # Dispatcher heartbeat period (default 5s)
	docker_swarm_interface: "enp0s8"
	# docker_swarm_managers_ansible_group: 'docker-swarm-managers'
	docker_swarm_networks:

	# Copy and self modified from ys.zsh-theme, the one of default themes in master repository
	# Clean, simple, compatible and meaningful.
	# Tested on Linux, Unix and Windows under ANSI colors.
	# It is recommended to use with a dark background and the font Inconsolata.
	# Colors: black, red, green, yellow, *blue, magenta, cyan, and white.
	# http://xiaofan.at
	# 2 Jul 2015 - Xiaofan

	# Machine name.
	function box_name {

	# Copyright 2016-2022 Paul Durivage
	#
	# 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
	# distributed under the License is distributed on an "AS IS" BASIS,

	#!/bin/bash
	##################################################################################################################
	#Gatling scale out/cluster run script:
	#Before running this script some assumptions are made:
	#1) Public keys were exchange inorder to ssh with no password promot (ssh-copy-id on all remotes)
	#2) Check read/write permissions on all folders declared in this script.
	#3) Gatling installation (GATLING_HOME variable) is the same on all hosts
	#4) Assuming all hosts has the same user name (if not change in script)
	##################################################################################################################

	# to generate your dhparam.pem file, run in the terminal
	openssl dhparam -out /etc/nginx/ssl/dhparam.pem 2048