Single-node quickstart

MicroStack Documentation
#1

This tutorial shows how to install MicroStack in the simplest way possible. It will deploy an OpenStack 2023.1 (Antelope) cloud.

The cloud will only allow access to its VMs from the local host. To enable access from any host on your network, follow the Single-node guided tutorial instead.

Requirements

You will need a single machine whose requirements are:

  • physical or virtual machine running Ubuntu 22.04 LTS
  • a multi-core amd64 processor ideally with 4+ cores
  • a minimum of 16 GiB of free memory

Caution: Any change in IP address of the local host will be detrimental to the deployment. A virtual host will generally have a more stable address.

Deploy the cloud

Install the openstack snap

Begin by installing the openstack snap:

sudo snap install openstack --channel 2023.1

Prepare the machine

Sunbeam can generate a script to ensure that the machine has all of the required dependencies installed and is configured correctly for use in MicroStack - you can review this script using:

sunbeam prepare-node-script

or the script can be directly executed in this way:

sunbeam prepare-node-script | bash -x && newgrp snap_daemon

The script will ensure some software requirements are satisfied on the host. In particular, it will:

  • install openssh-server if it is not found
  • configure passwordless sudo for all commands for the current user (NOPASSWD:ALL)

Bootstrap the cloud

Deploy the OpenStack cloud using the cluster bootstrap command and accept software defaults:

sunbeam cluster bootstrap --accept-defaults

Configure the cloud and obtain credentials

Now configure the deployed cloud using the configure command:

sunbeam configure --accept-defaults --openrc demo-openrc

The above command provides normal user credentials (file demo-openrc). Admin credentials can be obtained in this way (file admin-openrc):

sunbeam openrc > admin-openrc

Launch a VM

Verify the cloud by launching a VM called ‘test’ based on the ‘ubuntu’ image (Ubuntu 22.04 LTS). The launch command is used:

sunbeam launch ubuntu --name test

Sample output:

Launching an OpenStack instance ...
Access instance with `ssh -i /home/ubuntu/.config/openstack/sunbeam ubuntu@10.20.20.200`

Connect to the VM over SSH using the provided command. Note that the VM will not be ready instantaneously; waiting time is mostly determined by the cloud’s available resources.

Related howtos

Now that OpenStack is set up, be sure to check out the following howto guides:

MicroStack Documentation
#2

This direction could be confusing especially for people new to OpenStack. The SSH command actually fails because it takes some time until the VM actually gets ready and the SSH service is ready to accept the connection on top of OpenStack.

$ ssh -i /home/ubuntu/snap/openstack/223/sunbeam ubuntu@10.20.20.53                                                                                                          
(no response)
^C


$ ssh -v -i /home/ubuntu/snap/openstack/223/sunbeam ubuntu@10.20.20.53
OpenSSH_8.9p1 Ubuntu-3ubuntu0.1, OpenSSL 3.0.2 15 Mar 2022
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: include /etc/ssh/ssh_config.d/*.conf matched no files
debug1: /etc/ssh/ssh_config line 21: Applying options for *
debug1: Connecting to 10.20.20.53 [10.20.20.53] port 22.
debug1: connect to address 10.20.20.53 port 22: Connection refused
ssh: connect to host 10.20.20.53 port 22: Connection refused
#3

Thank you Nobuto. I added a sentence.