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

sudo apt install -y wireguard
 
cd /etc/wireguard
umask 077;
wg genkey | tee privatekey | wg pubkey > publickey
 
/etc/wireguard/wg0.conf
[Interface]
Address = 192.168.6.1/24
ListenPort = 1194
PrivateKey = qz3LQkTEA8tOJEORyUxT2w2SIwdXwCLcO7joKq58tUs=
PostUp = iptables -A FORWARD -i %i -j ACCEPT; iptables -A FORWARD -o %i -j ACCEPT; iptables -t nat -A POSTROUTING -o ens3 -j MASQUERADE
PostDown = iptables -D FORWARD -i %i -j ACCEPT; iptables -D FORWARD -o %i -j ACCEPT; iptables -t nat -D POSTROUTING -o ens3 -j MASQUERADE     
 
[Peer]
PublicKey = wL+h2EqxaQpcWgwO8SIXPGqhHgssvj9xqjHAPjYLJ28=
AllowedIPs = 192.168.6.2/32
 
sudo ufw allow 1194/udp
sudo ufw status
 
sudo systemctl enable wg-quick@wg0
sudo systemctl start wg-quick@wg0
sudo systemctl status wg-quick@wg0
 
# watch connections
watch -n1 wg

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
 
isdct show -d DeviceStatus,Index,Firmware,FirmwareUpdateAvailable -intelssd

# dmesg | grep nvme
[    2.546620] nvme nvme0: pci function 0000:5e:00.0
[    2.552447] nvme nvme1: pci function 0000:5f:00.0
[    2.768347] nvme nvme1: ignoring ctrl due to duplicate subnqn (nqn.2017-12.org.nvmexpress:uuid:11111111-2222-3333-4444-555555555555).
[    2.775422] nvme nvme1: Removing after probe failure status: -22
[    2.779813]  nvme0n1: p1 p2

nvme format --ses=1 /dev/nvme1

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
 
# 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;
...

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
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

FRITZBOX_WAN_IP=111.1.2.3
FRITZBOX_CIDR=192.168.178.0/24
PSK=PASS1234
 
openstack vpn ike policy create ikepolicy \
  --encryption-algorithm aes-256 \
  --auth-algorithm sha512 \
  --pfs group2
 
openstack vpn ipsec policy create ipsecpolicy \
  --encryption-algorithm aes-256 \
  --auth-algorithm sha512 \
  --pfs group2
 
ROUTER_ID=$(openstack router list -c ID -f value)
openstack vpn service create vpn \
  --router ${ROUTER_ID}
 
SUBNET_ID=$(openstack subnet list -c ID -f value)
openstack vpn endpoint group create ep_subnet \
  --type subnet \
  --value ${SUBNET_ID}
 
openstack vpn endpoint group create ep_cidr \
  --type cidr \
  --value ${FRITZBOX_CIDR}
 
openstack vpn ipsec site connection create conn \
  --vpnservice vpn \
  --ikepolicy ikepolicy \
  --ipsecpolicy ipsecpolicy \
  --peer-address ${FRITZBOX_WAN_IP} \
  --peer-id ${FRITZBOX_WAN_IP} \
  --psk ${PSK} \
  --local-endpoint-group ep_subnet \
  --peer-endpoint-group ep_cidr

openstack security group rule create default \
  --protocol tcp \
  --dst-port 22 \
  --remote-ip 192.168.178.0/24