Skip to content

Home Lab

Notes from my learning sessions

Menu
Menu

Openstack – Train : Create networks, router, flavor and launch an instance

Posted on October 22, 2020August 20, 2022 by sandeep

<<< Cinder

As admin user

1. Create Flavors as required

. admin-openrc
openstack flavor create m1.nano --ram 512 --vcpus 1 --disk 10
openstack flavor create m1.micro --ram 1024 --vcpus 1 --disk 10
openstack flavor create m1.mini --ram 1024 --vcpus 2 --disk 10
openstack flavor create m1.small --ram 2048 --vcpus 2 --disk 20
openstack flavor create m1.medium --ram 4096 --vcpus 2 --disk 40
openstack flavor create m1.large --ram 8192 --vcpus 2 --disk 40
openstack flavor create m1.xlarge --ram 16384 --vcpus 8 --disk 80

2. Create a provider network “External-Network”

openstack network create --share --external --provider-physical-network provider --provider-network-type flat External-Network

3. Create a subnet associated with provider network

openstack subnet create --network External-Network --allocation-pool start=10.99.1.193,end=10.99.1.253 --dns-nameserver 10.99.0.1 --gateway 10.99.0.1 --subnet-range 10.99.0.0/16 External-Subnet

As ‘homeuser’

1. Create a network for homelab use

. user-openrc
openstack network create Internal

openstack subnet create --network Internal --dns-nameserver 10.99.0.1 --gateway 172.168.1.1 --subnet-range 172.168.1.0/24 Internal-Subnet

2. Create a router to route traffic between homelab subnet and External-Network

openstack router create Router

openstack router add subnet Router Internal-Subnet

openstack router set Router --external-gateway External-Network

3. Enable SSH and ICMP traffic – Update rule for default security group.

openstack security group rule create --remote-ip 0.0.0.0/0 --dst-port 22 --protocol tcp --ingress --ethertype ipv4 --description "Allow SSH" default
openstack security group rule create --remote-ip 0.0.0.0/0 --protocol icmp --ingress --ethertype ipv4 --description "Allow ICMP" default

Get the network id of the ‘Internal’ network and launch a VM

# openstack network list
+--------------------------------------+------------------+--------------------------------------+
| ID | Name | Subnets |
+--------------------------------------+------------------+--------------------------------------+
| 2c6b1d67-f608-4665-ba78-fad21831d957 | External-Network | 49e7f440-002b-4bf2-9d9a-e6ea70ccec88 |
| b5eea23f-25e2-43fc-b680-b7bb346a5a98 | Internal | a963a89e-544b-47d7-be77-2244ac792613 |
+--------------------------------------+------------------+--------------------------------------+

# openstack server create --image cirros --flavor m1.micro --nic net-id=b5eea23f-25e2-43fc-b680-b7bb346a5a98 TestVM

Login to horizon and ping external site from the console of Cirros VM.  (http://controller/horizon/auth/login/)

 

 

 

<<< Cinder

Recent Posts

  • Ceph + KVM: 4. Orchestrating Ceph RBD backed VMs on KVM Hosts
  • Rabbit MQ Cluster + HAProxy + Keepalived
  • Install and configure MariaDB / Galera cluster
  • Ceph + KVM : 3. Installing KVM, cutsomized monitoring scripts
  • Ceph + KVM : 5. Service checks and CLI commands
  • Ceph + KVM : 2. Installation – Ceph Storage
  • Ceph + KVM : 1. Planning and preparing for Ceph Storage
  • Openstack Xena on Ubuntu 20.04 – Cinder
  • Preparing custom Debian 11 MATE image
  • Setup Ubuntu 20.04 repository mirror server

Archives

  • April 2025
  • March 2025
  • October 2024
  • September 2024
  • April 2022
  • March 2022
  • February 2022
  • December 2021
  • October 2021
  • September 2021
  • October 2020
  • February 2020
  • January 2020
  • December 2019
© 2025 Home Lab | Powered by Minimalist Blog WordPress Theme