gangsta

Red Hat Enterprise Linux OpenStack Platform Installer you can run this command as root to reset the password:

$ sudo foreman-rake permissions:reset Reset to user: admin, password: XXXXXXXXXX

Admin password is stored in Postgres table users inside foreman database:

id | login             | admin | password_hash | password_salt
---+-------------------+-------+---------------+---------------

gangsta

Docker, stop messing with my iptables rules!

Let's say you are using docker on a server available on the Internet. You already have an iptables based firewall configured. Personally, I'm using uif which is a very powerful perl script available in debian. Have a look at a config example.

To tell docker to never make changes to your system iptables rules, you have to set --iptables=false when the daemon starts.

For sysvinit and upstart based systems, you can edit /etc/default/docker. For systemd, you can do that:

mkdir /etc/systemd/system/docker.service.d
cat << EOF > /etc/systemd/system/docker.service.d/noiptables.conf

gangsta

This is how we might use the defined type in a Puppet manifest:

apache::vhost { 'foo.example.com':
      port          => '80',
      docroot       => '/var/www/foo.example.com',
      docroot_owner => 'foo',
      docroot_group => 'foo',
      options       => ['Indexes','FollowSymLinks','MultiViews'],
      proxy_pass    => [ { 'path' => '/a', 'url' => 'http://backend-a/' } ],
}

gangsta

Error

systemctl restart httpd

(98)Address already in use: AH00072: make_sock: could not bind to address [::]:443

Solution

gangsta

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

# 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.
  # For a complete reference, please see the online documentation at

gangsta

Docker CE for Centos 7

yum install -y yum-utils device-mapper-persistent-data lvm2
yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
yum install docker-ce -y
systemctl start docker

Adding Docker compose

gangsta

Execute shell

Command

#!/bin/bash

echo -e ""
echo -e "************************************************************************************************"
echo -e "Parsing Puppet Environment"
echo -e "************************************************************************************************"

gangsta

Execute shell script on remote host using ssh

SSH site	root@k8s.mydomain.com
Command

echo -e ""
echo -e "**************************************************************"
echo -e " Generate YAML for Kubernetes"
echo -e "**************************************************************"
echo -e ""

gangsta

echo '
#! /bin/bash


####### yum update is optional #####
#yum -y update
yum install firewalld -y
systemctl start firewalld
firewall-cmd  --add-port=8300/tcp --add-port=8301/tcp --add-port=8302/tcp --add-port=8400/tcp --add-port=8500/tcp --add-port=80/tcp --add-port=443/tcp --permanent

gangsta

How to Setting Up a Comodo SSL Cert

• I advice you to buy SSL Certs from officially Comodo only , or some SSL reseller whose you trust.

These are the steps I went through to set up an SSL cert. Purchase the cert

Prior to purchasing a cert, you need to generate a private key, and a CSR file (Certificate Signing Request). You’ll be asked for the content of the CSR file when ordering the certificate:

openssl req -new -newkey rsa:2048 -nodes -keyout example_com.key -out example_com.csr