Check server 

#!/bin/bash
 
source /etc/kolla/admin-openrc.sh
 
EXIT_CODE=0
 
# search for server with status ERROR
OUTPUT="$(openstack server list --all --status=ERROR -c ID -c Name -c Status -f value)"
#openstack server show ${SERVER_ID} -c fault -f value
if [ -n "${OUTPUT}" ]; then
    echo "${OUTPUT}"
 
    EXIT_CODE=1
fi
 
# search for server with status VERIFY_RESIZE
OUTPUT="$(openstack server list --all --status=VERIFY_RESIZE -c ID -c Name -c Status -f value)"
if [ -n "${OUTPUT}" ]; then
    echo "${OUTPUT}"
 
    EXIT_CODE=1
fi
 
# search for server processes on wrong compute node
for COMPUTE_NODE in $(openstack compute service list --service nova-compute -c Host -f value); do
    for SERVER_ID in $(ssh ${COMPUTE_NODE} pgrep qemu -a | grep -o -P '(?<=-uuid ).*(?= -smbios)'); do

OpenStack: placement (resource provider)

Install CLI client
https://docs.openstack.org/releasenotes/osc-placement/

pip install openstack-placement
 
echo 3.5.6 > .python-version

resource provider allocation

RESOURCE_PROVIDER_ID=$(openstack resource provider list --name ${NODE_NAME}.$(hostname -d) -c uuid -f value)
openstack resource provider show --allocations ${RESOURCE_PROVIDER_ID} -c allocations -f json
 
 
# list hypervisor
openstack resource provider list --sort-column name
 
# show
openstack resource provider allocation show ${SERVER_ID}
 
 
 
NODE_NAME=com1-prod.example.com
RESOURCE_PROVIDER_UUID=$(openstack resource provider list --name ${NODE_NAME} -c uuid -f value)
openstack resource provider inventory list ${RESOURCE_PROVIDER_UUID}
openstack resource provider usage show ${RESOURCE_PROVIDER_UUID}
 
 
openstack allocation candidate list --resource VCPU=32  --resource DISK_GB=120 --resource MEMORY_MB=4096 --member-of 3f0d0e40-6cf4-422d-a245-ceaffb0ac037

Add resource provider to aggregate

qemu guest agent

OpenStack admin

openstack image set --property hw_qemu_guest_agent=yes ${IMAGE_ID}

Within the VM

# check whather hw_qemu_guest_agent is enabled
ls -l /dev/virtio-ports/org.qemu.guest_agent.0
 
# install qemu-guest-agent
sudo apt-get install -y qemu-guest-agent

supported_commands

docker exec -ti nova_libvirt virsh qemu-agent-command instance-000069d9 '{"execute":"guest-info"}'

Execute command

openstack server show d82ca1de-1fcd-4ca6-84db-84891ec37796 -c OS-EXT-SRV-ATTR:hypervisor_hostname -c OS-EXT-SRV-ATTR:instance_name
docker exec -ti nova_libvirt virsh qemu-agent-command instance-000069d9 '{"execute":"guest-network-get-interfaces"}'

Links
https://www.sebastien-han.fr/blog/2015/02/09/openstack-perform-consistent-snapshots-with-qemu-guest-agent/
https://www.ovh.com/blog/create-and-use-openstack-snapshots/
http://wiki.stoney-cloud.org/wiki/Qemu_Guest_Agent_Integration

Create neutron probe

Install crudini

docker exec -ti -u root neutron_l3_agent apt update
docker exec -ti -u root neutron_l3_agent apt install -y crudini

Create configuration

docker exec -ti neutron_l3_agent bash
umask 077
cat /etc/neutron/neutron.conf > /etc/neutron/debug.ini
crudini --merge /etc/neutron/debug.ini < /etc/neutron/l3_agent.ini

Export credentials

unset HISTFILE
# cat /etc/kolla/admin-openrc.sh
# paste export OS_XXX

Get network ID

SERVER_ID=074e2a72-9bd7-488f-af3d-f45f3bc0b6e7
 
PORT_ID=$(openstack port list --server ${SERVER_ID} -c id -f value)
openstack port show ${PORT_ID} -c network_id -f value

Create probe

neutron-debug --config-file /etc/neutron/debug.ini probe-create ${NETWORK_ID}

Get probe port ID

Barbican (Secret) 

# list all secrets
openstack secret list
 
# download
openstack secret get https://barbican.service.example.com/v1/secrets/d5794ec0-a86f-420f-8d03-b1b11b4251bd
  --payload_content_type application/octet-stream \
  --file /tmp/file1.out 
 
# Crate secret / certificate
openstack secret store --name=cert1 -t "application/octet-stream" -e base64 --payload="$(base64 < cert1.p12)"

ACL
https://docs.openstack.org/python-barbicanclient/latest/cli/cli_usage.html

# list allowed user
openstack acl get https://barbican.service.example.com/v1/secrets/1111111-2222-3333-4444-5555555555555
 
# allow access for user to secret
openstack acl user add -u ${USER_ID} https://barbican.service.example.com/v1/secrets/1111111-2222-3333-4444-5555555555555

Test
https://docs.citrix.com/en-us/citrix-application-delivery-management-software/13/orchestration/integrate-with-openstack-platform/openstack-configuring-lbaasv2-using-command-line.html

OpenStack: Debug VM 

export OS_ENV=dev
export SERVER_ID=$1
 
# search for VM by name
if [ ${#SERVER_ID} -ne 36 ]; then
    RESULT="$(openstack server list --all --name ${SERVER_ID})"
    if [ $(echo "${RESULT}" | wc -l) -eq 5 ]; then
        SERVER_ID=$(echo "${RESULT}" | tail -2 | head -1 | cut -d " " -f2)
    else
        echo "No VM with name ${SERVER_ID}) found, similar VMs:"
        echo "${RESULT}"
        exit 0
    fi
fi
 
RESULT=$(openstack server show ${SERVER_ID} -f value -c id)
if [ -z "${RESULT}" ]; then

Allow (temprary) incomming ping to VM (icmp traffic) 

SERVER_ID=51f8bbe2-4a89-4065-a24f-4a6fa47fadd0
 
PORT_ID=$(openstack port list --server ${SERVER_ID} -c id -f value)
echo ${PORT_ID}
 
#DEP: SECURITY_GROUP_ID=$(openstack port show ${PORT_ID} -c security_group_ids -f json | jq -r .security_group_ids |  tr ',' '\n' | head -1)
SECURITY_GROUP_ID=$(openstack port show ${PORT_ID} -c security_group_ids -f json | jq -r 'first(.security_group_ids[])')
echo ${SECURITY_GROUP_ID}
# openstack security group show ${SECURITY_GROUP_ID}
 
# create security group rule to allow incomming icmp traffic
SECURITY_GROUP_RULE_ID=$(openstack security group rule create --protocol icmp ${SECURITY_GROUP_ID} -c id -f value)
echo ${SECURITY_GROUP_RULE_ID}
openstack security group rule show ${SECURITY_GROUP_RULE_ID}
 
# remove rule
openstack security group rule delete ${SECURITY_GROUP_RULE_ID}

RabbitMQ

Connect to control node(s)

# show container state
docker ps -a | grep rabbitmq
 
# Connect into RabbitMQ Docker container
docker exec -it rabbitmq bash

RabbitMQ state

# Show status
rabbitmqctl status
 
# Show cluster status
rabbitmqctl cluster_status
 
# Show list_queues
rabbitmqctl list_queues

CLI

# Start the App
rabbitmqctl start_app 
 
# Stop the App
rabbitmqctl stop_app
 
# Reset the App
rabbitmqctl reset
 
# Force reset
rabbitmqctl force_reset
 
# Join the cluster
rabbitmqctl join_cluster rabbit@ctl2-stage
 
# Start the App
rabbitmqctl start_app
 
# forget node
rabbitmqctl forget_cluster_node rabbit@nodeX
rabbitmqctl join_cluster rabbit@nodeX
 
# cleanup / remove all data
docker exec -it rabbitmq bash
rm -r /var/lib/rabbitmq/*
docker restart rabbitmq

Statistics

rabbitmq-diagnostics observer

OpenStack: port

Identify port by MAC

MAC=00:11:22:33:44:55
openstack port list --mac-address ${MAC}
 
SUBNET_ID=b07b6b7a-dfb2-4b58-82cb-1568da8990b3
openstack subnet show ${SUBNET_ID}
 
PROJECT_ID=701e329e-997d-4dfa-b0d0-27a51670ed2d
openstack project show ${PROJECT_ID}

Add security group to port

SERVER_ID=$(openstack server list --all-projects --name vm1-dev -c ID -f value)
openstack port list --server ${SERVER_ID}
PORT_ID=97006537-07b1-4d37-9e2e-3bb71ad23087
openstack port set --security-group 2060fc87-a1bf-4cf5-a497-f6c4b45cffcd ${PORT_ID}

OpenStack: Create certbot VM

Create VM

openstack server create foo-certbot \
    --image "Ubuntu 18.04" \
    --flavor m1.small \
    --key-name foo-key \
    --network foo-net \
    --security-group foo-sec

Add floating IP

FLOATING_IP=$(openstack floating ip create public -c floating_ip_address -f value)
echo ${FLOATING_IP}
openstack server add floating ip foo-certbot ${FLOATING_IP}

Install certbot

ssh ubuntu@${FLOATING_IP} sudo apt update && sudo apt install -y certbot

Create wildcard certificates

export DOMAINS="
dev.example.com
www.example.com
"
 
for DOMAIN in ${DOMAINS}; do
    sudo certbot certonly \
    --manual \
    --manual-public-ip-logging-ok \
    --register-unsafely-without-email \
    --agree-tos \
    --preferred-challenges dns-01 \
    --server https://acme-v02.api.letsencrypt.org/directory \
    -d \*.${DOMAIN}
done

Debug

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