ubuntu

Setup

# install
sudo apt-get install -y strongswan
 
# Left (Ubuntu client, behind NAT)
Ubuntu Client IP: 212.8.9.10
Ubuntu net: 192.168.178.0/24
 
# Right (OpenStack VPNaaS)
VPN_SERVICE_ID=$(openstack vpn service list -c ID -f value)
VPN_SERVICE_IP=$(openstack vpn service show ${VPN_SERVICE_ID} -c external_v4_ip -f value)
echo ${VPN_SERVICE_IP}
 
OpenStack VPN IP: 217.50.60.70
OpenStack Net: 10.0.1.0/24

Create OpenStack VPN endpoint
http://www.panticz.de/openstack/vpnaas

/etc/ipsec.secrets

echo ${VPN_SERVICE_IP} : PSK "${PSK}" | sudo tee -a /etc/ipsec.d/ipsec.openstack_vpnaas.secrets

/etc/ipsec.conf

Schedule
https://wiki.ubuntu.com/FocalFossa/ReleaseSchedule

ReleaseNotes
https://wiki.ubuntu.com/FocalFossa/ReleaseNotes

Known issues
https://wiki.ubuntu.com/FocalFossa/ReleaseNotes#Known_issues

Download
Releases: http://releases.ubuntu.com/20.04/
Cloud image (minimal): https://cloud-images.ubuntu.com/minimal/daily/focal/current/focal-minimal-cloudimg-amd64.img
Netboot: http://archive.ubuntu.com/ubuntu/dists/focal/main/installer-amd64/current/images/netboot/mini.iso
Torrent: http://releases.ubuntu.com/20.04/ubuntu-20.04-desktop-amd64.iso.torrent

Repository

# deb download
# https://code.visualstudio.com/docs/setup/linux
curl https://packages.microsoft.com/keys/microsoft.asc | gpg --dearmor > microsoft.gpg
sudo install -o root -g root -m 644 microsoft.gpg /etc/apt/trusted.gpg.d/
sudo sh -c 'echo "deb [arch=amd64] https://packages.microsoft.com/repos/vscode stable main" > /etc/apt/sources.list.d/vscode.list'

sudo apt-get install apt-transport-https
sudo apt-get update
sudo apt-get install code # or code-insiders

# manual download
wget -q https://update.code.visualstudio.com/latest/linux-deb-x64/stable -O /tmp/code.deb

Install
sudo apt install -y snapd

CLI
snap find
snap install

Configure proxy
sudo mkdir -p /etc/systemd/system/snapd.service.d/
echo -e '[Service]\nEnvironment="http_proxy=http://proxy.example.com:3128/"' | sudo tee /etc/systemd/system/snapd.service.d/http-proxy.conf
echo -e '[Service]\nEnvironment="https_proxy=http://proxy.example.com:3128/"' | sudo tee /etc/systemd/system/snapd.service.d/https-proxy.conf
sudo systemctl daemon-reload
sudo systemctl restart snapd

# debug proxy
systemctl show snapd | grep proxy

sudo apt install -y qemu-kvm cloud-image-utils
wget https://cloud-images.ubuntu.com/releases/18.04/release/ubuntu-18.04-server-cloudimg-amd64.img

# cat seed
#cloud-config
password: ubuntu
chpasswd: { expire: False }
ssh_pwauth: True
ssh_import_id: ${USER}

cloud-localds seed.img seed
sudo kvm-spice -m 2048 -drive file=ubuntu-18.04-server-cloudimg-amd64.img,if=virtio,cache=writeback -cdrom seed.img -net nic,model=virtio -net user,hostfwd=tcp::222-:22
# -balloon virtio

# login credentials:
user: ubuntu
pass: ubuntu

ssh ubuntu@localhost:2222

Install from repository
sudo apt-get install -y prometheus
# optional
sudo apt-get install -y prometheus-node-exporter
sudo apt-get install -y prometheus-alertmanager
sudo apt-get install -y prometheus-pushgateway

Ansible installation
https://github.com/panticz/ansible/tree/master/roles/prometheus
- hosts: localhost
roles:
- prometheus

Login
http://SERVER_IP:9090/

Commands
avg_over_time(node_memory_MemAvailable[5m])/1024/1024

Repositroy