FIX: While synchronizing instance power states, found XX instances in the database and XX instances on the hypervisor

Check kibana logs for
"While synchronizing instance power states, found"

Check libvirt VMs vs. nova DB

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}")

Remove shutdown VM from libvirt

OpenVswitch: cleanup interfaces without tap device

Show bridges without tab device

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

Get interface details

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}

Delete interface

OpenStack: project

Create project

USER_ID=xxxxxxxxxx
PROJECT_ID=xxxxxxxxx
 
openstack project create foo-project --domain bar
 
ROLES="
creator
heat_stack_owner
load-balancer_member
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}

OpenStack: Horizon

List templates

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

Configure theme
/etc/kolla/horizon/custom_local_settings

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'

podman

Install

sudo apt-get install -y software-properties-common uidmap
sudo add-apt-repository -y ppa:projectatomic/ppa
sudo apt-get -y install podman

Container

podman run --name nginx -v /tmp/html:/usr/share/nginx/html:ro -d -p 8080:80 docker://nginx
 
podman run \
    -dt \
    -p 8080:8080/tcp \
    -e HTTPD_VAR_RUN=/var/run/httpd \
    -e HTTPD_MAIN_CONF_D_PATH=/etc/httpd/conf.d \
    -e HTTPD_MAIN_CONF_PATH=/etc/httpd/conf \
    -e HTTPD_CONTAINER_SCRIPTS_PATH=/usr/share/container-scripts/httpd/ \
    registry.fedoraproject.org/f27/

Links
https://podman.io/

Floating IPs 

# list all floating IPs
openstack floating ip list
openstack floating ip show 1.2.3.4
openstack floating ip list --project ${PROJECT_ID} --long
 
# Allocate floating IP
openstack floating ip create public 
 
# Allocate specific floating IP for a project (as cloud admin)
openstack floating ip create public --floating-ip-address 10.11.12.13 --project foo-project
FLOATING_IP=$(openstack floating ip create public -c floating_ip_address -f value --floating-ip-address 10.11.12.13)
 
# Associate floating IP to instance
openstack server add floating ip ${INSTANCE_NAME_OR_ID} ${FLOATING_IP}
 
# Disassociate floating IP
openstack server remove floating ip ${INSTANCE_NAME_OR_ID} ${FLOATING_IP}
 
# Release floating IP
openstack floating ip delete ${FLOATING_IP}
 
# show used floating IPs
NETWORK_ID=$(openstack subnet list --network public -c Network -f value)
openstack ip availability show -c total_ips -c used_ips ${NETWORK_ID}
 
# Add floating IP to port
openstack floating ip set --port ${PORT_ID} ${FLOATING_IP}

List reserved floating IPs per project

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