Cloud Compute (OpenStack)

1# Requirements: Ubuntu 22.04, 16GB+ RAM, 100GB disk
2sudo useradd -s /bin/bash -d /opt/stack -m stack
3echo "stack ALL=(ALL) NOPASSWD: ALL" | sudo tee /etc/sudoers.d/stack
4 
5sudo -u stack git clone https://opendev.org/openstack/devstack /opt/stack/devstack
6sudo -u stack cp /opt/stack/devstack/samples/local.conf /opt/stack/devstack/local.conf
7 
8# Edit local.conf — set ADMIN_PASSWORD, DATABASE_PASSWORD, etc.
9cd /opt/stack/devstack && sudo -u stack ./stack.sh

1pip install python-openstackclient
2openstack --version
3 
4# Source credentials after DevStack:
5source /opt/stack/devstack/openrc

1# Source admin credentials
2source /opt/stack/devstack/openrc
3 
4# Create network
5openstack network create private-net
6openstack subnet create --network private-net --subnet-range 10.0.0.0/24 private-subnet
7 
8# Create router (if needed)
9openstack router create router1
10openstack router add subnet router1 private-subnet
11 
12# Upload image
13openstack image create "Ubuntu-22.04" --file jammy-server-cloudimg-amd64.img --disk-format qcow2
14 
15# Create flavor and keypair
16openstack flavor create --ram 2048 --disk 10 --vcpus 2 m1.small
17openstack keypair create --public-key ~/.ssh/id_ed25519.pub mykey
18 
19# Launch instance
20openstack server create --flavor m1.small --image Ubuntu-22.04 --network private-net --key-name mykey my-instance

1# After DevStack install, access Horizon:
2# http://<server-ip>/dashboard
3# Login: admin / ADMIN_PASSWORD from local.conf
4 
5openstack server list
6openstack console log show my-instance

1openstack service list
2openstack endpoint list
3openstack compute service list
4openstack network agent list

1openstack server list
2openstack server stop my-instance
3openstack server start my-instance
4openstack server delete my-instance
5 
6# Floating IP
7openstack floating ip create public
8openstack server add floating ip my-instance <floating-ip>