Step-by-Step Guide to Deploying OpenStack on VMware: From Single Node to Dual Node

OpenStack Detailed Deployment Steps

1. Single‑Node Deployment

1.1 Configure VM NAT network

Check the default NAT network in VMware (vmnet10) with subnet 172.25.2.0/24 and gateway 172.25.2.2.

1.2 Set VM network adapters

Add a new network adapter in VMware, select “Custom” → “VMnet10” (NAT mode).

1.3 Configure Linux network

# cd /etc/sysconfig/network-scripts
vi ifcfg-ens33
BOOTPROTO=static
ONBOOT=yes
IPADDR=172.25.2.101
NETMASK=255.255.255.0
GATEWAY=172.25.2.2
DNS=8.8.8.8
systemctl stop firewalld
systemctl disable firewalld
systemctl restart network
ping www.baidu.com

1.4 Yum repository configuration

Disable NetworkManager and SELinux, add Alibaba Cloud mirrors, install openstack-packstack and required packages.

# yum install -y centos-release-openstack-queens
# yum install -y openstack-packstack
# packstack --allinone
# yum downgrade leatherman   # fix shared‑library error

2. Dual‑Node (Controller + Compute) Deployment

2.1 Prepare VMs

Create two CentOS 7 VMs with one NIC in host‑only mode (192.168.16.10) and another in NAT mode (192.168.16.20).

2.2 Network interfaces

Configure static IPs for controller (192.168.16.10) and compute (192.168.16.20) nodes.

2.3 Mount installation images

# mount -o loop CentOS-7-x86_64-DVD-1511.iso /mnt
cp -rvf /mnt/* /opt/centos7.2/
umount /mnt

2.4 Local yum repositories

Create /etc/yum.repos.d/local.repo on both nodes pointing to the mounted directories.

2.5 Install OpenStack services

Run the provided iaas-*.sh scripts to install MySQL, Keystone, Glance, Nova, Neutron, Dashboard, etc.

3. Using the OpenStack Platform

3.1 Create an image

Upload a QCOW2 image to Glance.

3.2 Create networks, router and security group

Use the Horizon UI to create external network net‑gre, internal network int‑gre, router, and allow all ICMP/TCP/UDP in the default security group.

3.3 Launch a VM

Boot a server with the created image, flavor, network and security group, then associate a floating IP.

4. Keystone Administration

Commands to create users, projects, roles and assign permissions (e.g., openstack user create, openstack role add).

5. Nova Component Details

Explanation of Nova architecture, flavor management, instance lifecycle commands (boot, stop, start, reboot, pause, delete), floating‑IP operations and key‑pair handling.

6. Neutron Network Service

List, create, update and delete networks using openstack network commands, including GRE segmentation IDs.