Build Private Cloud with OpenStack Kolla-ansible Step by Step Guide 1.0 -Part 2 -OS Preparation

Index

Part 1 Preparation

Part 2 OS Preparation

Part 3 Prepare Docker Registry

Part 4-Install Ceph Cluster

Part 5-Ceph Cluster Troubleshooting

Part 6-Deploy Openstack with Kolla-ansible

Part 7-Openstack Cluster Post Installation

Part 8-Openstack Upload Image

Part 9-Openstack Create Network

Part 10-Openstack Create VM

Ubuntu Configuration

In this guide, I am not going to repeat on how to install Ubuntu 20.04, there are plenty of guides there, I will focus on packages preparation after you have Ubuntu 20.04 been installed.

The following task running on all of the nodes

apt update

Configure hostname

sudo hostnamectl set-hostname openstack-controller01
sudo hostnamectl set-hostname openstack-controller02
sudo hostnamectl set-hostname openstack-controller03
sudo hostnamectl set-hostname openstack-ceph01
sudo hostnamectl set-hostname openstack-ceph02
sudo hostnamectl set-hostname openstack-ceph03
sudo hostnamectl set-hostname openstack-compute01
sudo hostnamectl set-hostname openstack-compute02
sudo hostnamectl set-hostname openstack-staging

Configure /etc/hosts

root@openstack-controller01:~# cat /etc/hosts
127.0.0.1 localhost
192.168.0.1    openstack-controller01
192.168.0.2    openstack-controller02
192.168.0.3    openstack-controller03
192.168.0.4    openstack-ceph01
192.168.0.5    openstack-ceph02
192.168.0.6    openstack-ceph03
192.168.0.7    openstack-compute01
192.168.0.8    openstack-compute02
192.168.0.9    openstack-staging
192.168.0.254    openstack-int.your-domain.com   ##<< make sure this match with global.yml file VIP FQDN.
10.196.24.221    openstack-vip.your-domain.com

SSH Configuration

sudo vim /etc/ssh/sshd_config
# Change the following lines：
Line 100 #ClientAliveInterval 0
Line 101 #ClientAliveCountMax 3
# Change to 
ClientAliveInterval 60
ClientAliveCountMax 60

Restart SSH service

sudo systemctl restart sshd && systemctl status sshd

Configure SSH allow root login

sed -i '/PermitRootLogin/d' /etc/ssh/sshd_config
echo "PermitRootLogin yes" >> /etc/ssh/sshd_config
service sshd reload

SSH password-less login, openstack-staging machine only

ssh-keygen
ssh-copy-id -o StrictHostKeyChecking=no root@openstack-controller01
ssh-copy-id -o StrictHostKeyChecking=no root@openstack-controller02
ssh-copy-id -o StrictHostKeyChecking=no root@openstack-controller03
ssh-copy-id -o StrictHostKeyChecking=no root@openstack-ceph01
ssh-copy-id -o StrictHostKeyChecking=no root@openstack-ceph02
ssh-copy-id -o StrictHostKeyChecking=no root@openstack-ceph03
ssh-copy-id -o StrictHostKeyChecking=no root@openstack-compute01
ssh-copy-id -o StrictHostKeyChecking=no root@openstack-compute02

Install git gcc and python3-pip

sudo apt-get install git gcc python3-pip sshpass -y

Install Dependencies

sudo apt-get install python3-dev libffi-dev libssl-dev -y

Install Docker Dependencies

sudo apt-get install apt-transport-https ca-certificates curl gnupg2 software-properties-common -y

Add Docker’s official GPG key:

curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg

Setup Docker Repo

sudo apt-get install \
    apt-transport-https \
    ca-certificates \
    curl \
    gnupg \
    lsb-release
echo \
  "deb [arch=amd64 signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/ubuntu \
  $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

Install Docker Engine

sudo apt-get update
sudo apt-get install docker-ce docker-ce-cli containerd.io

Configure docker auto-start

sudo systemctl enable docker && systemctl start docker && sudo systemctl status docker

Install pip

sudo apt install python3-pip
sudo pip3 install -U pip

Install ansible

sudo apt install ansible

Install kolla-ansible on staging machine only

sudo pip3 install kolla-ansible==12.0.0.0rc1

Create /etc/kolla directory

sudo mkdir -p /etc/kolla
sudo chown $USER:$USER /etc/kolla

Copy globals.yml and passwords.yml to the new you created in previous step /etc/kolla

cp -r /usr/local/share/kolla-ansible/etc_examples/kolla/* /etc/kolla

Copy all-in-one and multinode file into /root directory

cp /usr/local/share/kolla-ansible/ansible/inventory/* .

Download kolla-ansible on staging machine

Git clone kolla and kolla-ansible repo

git clone https://github.com/openstack/kolla
git clone https://github.com/openstack/kolla-ansible
cd kolla
git checkout stable/wallaby
cd ../kolla-ansible
git checkout stable/wallaby

Install kolla-ansible

pip install ./kolla
pip install ./kolla-ansible

Create the /etc/kolla directory.

sudo mkdir -p /etc/kolla
sudo chown $USER:$USER /etc/kolla

Copy the configuration files to /etc/kolla directory. kolla-ansible holds the configuration files ( globals.yml and passwords.yml) in etc/kolla.

cp -r kolla-ansible/etc/kolla/* /etc/kolla

Copy the inventory files to the current directory. kolla-ansible holds inventory files ( all-in-one and multinode) in the ansible/inventory directory.

cp kolla-ansible/ansible/inventory/* .

Configure ansible

For best results, Ansible configuration should be tuned for your environment. For example, add the following options to the Ansible configuration file /etc/ansible/ansible.cfg:

[defaults]
host_key_checking=False
pipelining=True
forks=100

Now, we have every ready on Host OS packages, in next session, we will start init-install preparation.