lxc profile device add default root disk path=/ pool=default
 
lxc storage list
lxc storage delete default
 
# zfs
lxc storage create zfs zfs source=tank/lxd
lxc storage list
 
# delete default storage
lxc storage volume list default
lxc storage volume delete default image/7d788819a5a97433db8470ee68370ec69e829b429800fa28b5524f0411490ce9
lxc storage delete default
 
# move container to another storage
CONTAINER=www1
lxc move ${CONTAINER} ${CONTAINER}-tmp -s nvme
lxc move ${CONTAINER}-tmp ${CONTAINER}
lxc start ${CONTAINER}

lxc profile device del dev-zfs root
lxc profile device add dev-zfs root disk path=/ pool=zfs

# change container storage quota
lxc config device set <CONTAINER_NAME> root size 100GB
 
# lvm thin pool
lvcreate -L 250G --thinpool kvm system
lxc storage create kvm lvm source=system lvm.thinpool_name=kvm
 
# unix-block
lxc config device add c1 xvdb1 unix-block source=/dev/xvdb1 required=false
lxc config device remove gitlab-runner3-dev xvdb2

CONTAINER_NAME=gitlab-runner1-dev
lxc launch ubuntu:18.04 ${CONTAINER_NAME} -p disk-zfs -p nic-dev-mgmt -c boot.autostart=true -c security.nesting=true -c security.privileged=true
#-c volatile.dev-mgmt.hwaddr=00:11:22:33:44:55
 
lxc exec ${CONTAINER_NAME} -- apt update
lxc exec ${CONTAINER_NAME} -- apt dist-upgrade
lxc exec ${CONTAINER_NAME} -- apt purge -y lxd lxd-client snapd unattended-upgrades
lxc exec ${CONTAINER_NAME} -- apt autoremove
 
lxc file push /root/.ssh/authorized_keys ${CONTAINER_NAME}/root/.ssh/authorized_keys
lxc exec ${CONTAINER_NAME} -- bash -c "sed -i 's/eth0:/dev-mgmt:/g' /etc/netplan/50-cloud-init.yaml"
lxc exec ${CONTAINER_NAME} -- netplan apply
 
printf 'lxc.apparmor.profile = unconfined\nlxc.cgroup.devices.allow = a\nlxc.mount.auto=proc:rw sys:rw\nlxc.cap.drop=' | lxc config set ${CONTAINER_NAME} raw.lxc -
lxc restart ${CONTAINER_NAME}

COMPUTE_NODE=com1-dev
 
# get shutoff VMs on compute node
VMS_COMPUTE=$(ssh ${COMPUTE_NODE} docker exec -i nova_libvirt virsh list --state-shutoff --uuid | sed '/^$/d' | sort)
# echo "${VMS_COMPUTE}"
 
# get shutoff VMs from nova DB
VMS_NOVA=$(ssh os-admin-dev "source /etc/kolla/admin-openrc.sh; openstack server list --all --host ${COMPUTE_NODE} -c ID -f value --status SHUTOFF" | sort)
# echo "${VMS_NOVA}"
 
# diff shutoff VMs
comm -3 <(echo "${VMS_COMPUTE}") <(echo "${VMS_NOVA}")

brctl show | egrep "qvb|tap" | sed '$!N;/\n.*tap/d;P;D' | awk '{print substr($1,4,8)}'

TOKEN=cac559da
 
# show port details
docker exec openvswitch_vswitchd ovsdb-client dump | grep ${TOKEN}
 
# get OVS port
docker exec openvswitch_vswitchd ovs-vsctl list-ports br-int | grep ${TOKEN}
 
# get OVS interface
docker exec openvswitch_vswitchd ovs-vsctl list-ifaces br-int | grep ${TOKEN}
 
# show host bridges
brctl show | grep ${TOKEN}
 
# show host interfaces
ip a | grep ${TOKEN}

# @host 1
nc -lvp 5001
 
# @host 2
bash -i >& /dev/tcp/10.0.1.24/5001 0>&1
 
# @host 1
while :; do hostname; date; sleep 1; done

apt install -y gddrescue
dpkg -i gddrescue_1.22-1_amd64.deb

ddrescue /dev/sda sda.dd sda.ddrescue.log

openstack project create foo-project --domain bar
 
ROLES="
creator
heat_stack_owner
load-balancer_member
member
"
 
for ROLE in ${ROLES}; do
    openstack role add --user ${USER_ID} --project ${PROJECT_ID} ${ROLE}
done
 
openstack role assignment list --names --user ${USER_ID}

docker exec -it horizon bash
ls -l /var/lib/kolla/venv/lib/python2.7/site-packages/openstack_dashboard/themes

AVAILABLE_THEMES = [
    ('default', 'Default', 'themes/default'),
    ('foo_bar', 'Foo bar', 'themes/foo_bar')
]
 
SELECTABLE_THEMES = [
    ('foo_bar', 'Foo bar', 'themes/foo_bar')
]
 
DEFAULT_THEME = 'foo_bar'