lxc image list images: | grep VIRTUAL-MACHINE
 
lxc launch images:ubuntu/21.04 vm2104 --vm
lxc launch images:ubuntu/21.04/cloud vm2104c --vm

wget https://packages.microsoft.com/keys/microsoft.asc -qO-| sudo apt-key add -
sudo sh -c 'echo "deb [arch=amd64] https://packages.microsoft.com/repos/ms-teams stable main" > /etc/apt/sources.list.d/teams.list'
sudo apt update
sudo apt install -y teams

cat <<EOF> /tmp/teams.yml
---
- hosts: localhost
  tasks:
    - name: Add teams APT key
      apt_key:
        url: https://packages.microsoft.com/keys/microsoft.asc
      become: yes
 
    - name: Add teams repository
      apt_repository:
        repo: "deb [arch=amd64] https://packages.microsoft.com/repos/ms-teams stable main"
      become: yes
 
    - name: Install teams
      apt:
        update_cache: yes
        name: teams
      become: yes
EOF
 
ansible-playbook /tmp/teams.yml --ask-become-pass

sudo snap install teams

ufw status
ufw enable
 
sudo ufw allow 22/tcp
sudo ufw allow 4500/udp
ufw start
 
sudo ufw deny 41194/udp
 
ufw app list
ufw status
ufw status numbered
ufw delete 1

mkdir -p ~/.config/openstack
 
cat <<EOF> ~/.config/openstack/clouds.yaml
clouds:
  dev-foo:
    auth_type: "v3applicationcredential"
    auth:
      auth_url: https://keystone.service.dev.example.com/v3
      application_credential_id: "YOUR_CREDENTIAL_ID"
      application_credential_secret: "YOUR_CREDENTIAL_PASS"
EOF

cat <<EOF> /tmp/install-terraform.yml 
---
- hosts: localhost
  tasks:
    - name: Get latest Terraform version
      uri:
        url: https://checkpoint-api.hashicorp.com/v1/check/terraform
      register: response
 
    - set_fact:
        terraform_download_url: "{{ response.json.current_download_url }}"
        terraform_version: "{{ response.json.current_version }}"
 
    - name: Download Terraform {{ terraform_version }}
      unarchive:
        src: "{{ terraform_download_url }}terraform_{{ terraform_version }}_{{ ansible_system | lower }}_amd64.zip"
        remote_src: yes
        dest: ~/bin
        creates: ~/bin/terraform
        mode: 0550
EOF
 
ansible-playbook /tmp/install-terraform.yml

#!/bin/bash
 
source /etc/kolla/admin-openrc.sh
 
 
function show_lb_owner() {
    LB_ID=$1
 
    # show project
    PROJECT_ID=$(openstack loadbalancer show -c project_id -f value ${LB_ID})
    PROJECT_NAME=$(openstack project show -c name -f value ${PROJECT_ID})
 
    # show domain
    DOMAIN_ID=$(openstack project show -c domain_id -f value ${PROJECT_ID})
    DOMAIN_NAME=$(openstack domain show -c name -f value ${DOMAIN_ID})
 
    echo "Domain: ${DOMAIN_NAME}"
    echo "Project: ${PROJECT_NAME}"
}
 
 
EXIT_CODE=0
 
 
# list broken LB
OUTPUT="$(openstack loadbalancer amphora list --provisioning-status ERROR)"
if [ -n "${OUTPUT}" ]; then
    echo "${OUTPUT}"
 
    EXIT_CODE=1
fi
 
# search for broken LB

sudo apt install -y nvme-cli

# list devices
nvme list
 
nvme smart-log /dev/nvme0n1
 
# rescan device
for nvme in /dev/nvme[0-9]; do
    sudo nvme ns-rescan $nvme
done
 
isdct show -d DeviceStatus,Index,Firmware,FirmwareUpdateAvailable -intelssd
 
# format
https://manpages.ubuntu.com/manpages/jammy/en/man1/nvme-format.1.html
nvme format --force /dev/nvmeXn1
blkdiscard --force /dev/nvmeXn1

openstack loadbalancer listener create --name foo-lb1-tcp-80 --protocol TCP --protocol-port 80 foo-lb1
openstack loadbalancer pool create --name foo-lb1-proxy-pool --lb-algorithm ROUND_ROBIN --listener foo-lb1-tcp-80 --protocol PROXY
openstack loadbalancer member create --subnet-id foo-subnet --address 10.0.1.13 --protocol-port 80 foo-lb1-proxy-pool
 
# check whather http_realip_module is available
nginx -V 2>&1 | grep -- 'http_realip_module'
 
# configure nginx
cat /etc/nginx/sites-enabled/default 
...
server {
    listen 80 default_server proxy_protocol;
    set_real_ip_from 10.0.1.17; # incomming proxy IP
    #set_real_ip_from 192.168.1.0/24;
    real_ip_header proxy_protocol;
...
 
cat /etc/nginx/nginx.conf
...
http {
    proxy_set_header X-Real-IP       $proxy_protocol_addr;
    proxy_set_header X-Forwarded-For $proxy_protocol_addr;
...

lspci | grep Mellanox
mstconfig -y -d  18:00.1 set SRIOV_EN=1 NUM_OF_VFS=16
 
#cat /etc/modprobe.d/mlnx.conf 
#options mlx4_core num_vfs=5 probe_vf=5
 
apt install -y sysfsutils
 
cat <<EOF> /etc/sysfs.d/mlnx-sriov_numvfs.conf
class/net/ens6f0/device/sriov_numvfs = 8
class/net/ens6f1/device/sriov_numvfs = 8
class/net/ens7f0/device/sriov_numvfs = 8
class/net/ens7f1/device/sriov_numvfs = 8
EOF
 
# /boot/grub/grub.cf
intel_iommu=on
 
ll /sys/class/net/en{p,s}*
echo 8 > /sys/class/net/ens6f0/device/sriov_numvfs

# create container
lxc launch ubuntu:20.04 osc
lxc shell osc
 
# install OpenStack CLI
apt install -y python3-openstackclient python3-neutron-vpnaas python3-octaviaclient python3-barbicanclient
openstack complete | sudo tee /etc/bash_completion.d/openstack
source /etc/bash_completion
 
# configure connection
mkdir -p ~/.config/openstack
cat <<EOF> ~/.config/openstack/clouds.yaml
clouds:
  dev-foo-app:
    auth:
      auth_url: https://keystone.service.example.com/v3
      application_credential_id: "xxxxxxxx"
      application_credential_secret: "xxxxxxxx"
    region_name: "eu-fra1"
    interface: "public"
    identity_api_version: 3
    auth_type: "v3applicationcredential"
EOF
 
echo export OS_CLOUD=dev-foo-app >> .bashrc
 
# test
export OS_CLOUD=dev-foo-app
openstack image list

openstack vpn ipsec site connection list
openstack vpn endpoint group list
openstack vpn service list
openstack vpn ipsec policy list
openstack vpn ike policy list

# install
sudo apt-get install -y strongswan
 
# Left (Peer client, behind NAT)
Ubuntu Client IP: 212.8.9.10
Ubuntu net: 192.168.178.0/24
 
OpenStack VPN IP: 217.50.60.70
OpenStack Net: 10.0.1.0/24