Useful Ubuntu 22.04/24.04 VM Commands

[havardthom]

Copied from original post: tteck/Proxmox#2072

Setting up Cloud-Init

1. Set user to root
2. Give root user a password
3. Set to no (not enough storage, yet)
4. Set network settings
5. Regenerate Image

Now you can start the VM

Select xterm.js under the Console pull down for copy/paste functions

Resize the Bootdisk (/dev/sda)

Hardware > Hard Disk (scsi0) > Disk Action > Resize

Expand VM Disk using parted (/dev/sda1)

parted /dev/sda
resizepart 1
Fix/Ignore? Fix
Partition number? 1
Yes/No? Yes
End? [2146MB]? -0
(parted) quit
reboot

Get SSH Going

sed -i -e 's/#PermitRootLogin prohibit-password/PermitRootLogin yes/g' -e 's/^PasswordAuthentication.*/PasswordAuthentication yes/' /etc/ssh/sshd_config
rm /etc/ssh/sshd_config.d/60-cloudimg-settings.conf
systemctl restart sshd

Add Guest Agent

apt-get update && apt-get -y upgrade
apt-get install -y qemu-guest-agent

reboot

Install Docker

sh <(curl -sSL https://get.docker.com)

Install Docker Compose

LATEST=$(curl -sL https://api.github.com/repos/docker/compose/releases/latest | grep '"tag_name":' | cut -d'"' -f4)
DOCKER_CONFIG=${DOCKER_CONFIG:-$HOME/.docker}
mkdir -p $DOCKER_CONFIG/cli-plugins
curl -sSL https://github.com/docker/compose/releases/download/$LATEST/docker-compose-linux-x86_64 -o ~/.docker/cli-plugins/docker-compose
chmod +x $DOCKER_CONFIG/cli-plugins/docker-compose
docker compose version

Add Dockge

• Install Docker Compose first

mkdir -p /opt/{dockge,stacks}
wget -q -O /opt/dockge/compose.yaml https://raw.githubusercontent.com/louislam/dockge/master/compose.yaml
cd /opt/dockge
docker compose up -d

Dockge GUI, https:// IP:5001

Add Portainer

• Docker run

docker volume create portainer_data
docker run -d \
  -p 8000:8000 \
  -p 9443:9443 \
  --name=portainer \
  --restart=always \
  -v /var/run/docker.sock:/var/run/docker.sock \
  -v portainer_data:/data \
  portainer/portainer-ce:latest

Portainer GUI, https:// IP:9443

[wulungnet]

Using the Ubuntu 24.04 script.
In Get SSH Going, sshd service were named ssh.service now, invoked by ssh.socket [controlled by systemd init].
Additional info : port change can be applied multiple ways but not just by modified sshd_config file only, because init were took control of the start-up. Here you can pick which to choose : How to change the SSH server port on Ubuntu?

[syl779]

systemctl restart ssh

[Braekpo1nt]

Just putting this here in case someone else has this problem. I had to set Cloud-Init IP Config (net0) to DHCP, otherwise I was getting network connectivity issues in the VM. This might be specific to me, but it took me an hour to figure out. In the end, before I clicked "Regenerate image", IP Config (net0) was set to "ip=DHCP" in the UI.

[TimoWolle]

+1 had the same issue, after switching it to DHCP it worked for me it