OpenStack

• https://clouddocs.web.cern.ch/

OpenStack CLI client

• https://docs.openstack.org/newton/user-guide/common/cli-install-openstack-command-line-clients.html
• https://help.dreamhost.com/hc/en-us/articles/235817468-Getting-started-with-the-OpenStack-command-line-client
• https://pip.pypa.io/en/stable/installation/
• https://docs.openstack.org/install-guide/environment-packages-rdo.html

yum update
yum install python3
yum install python-openstackclient
python3 -m pip install --upgrade pip
pip3 install python-openstackclient

# Source the OpenRC you configured or downloaded from the Horizon dashboard
source Tenant-openrc-new.sh

# Issue a token
openstack token issue

Common commands

# Enter OpenStack interactive mode
openstack

# Leave OpenStack interactive mode
exit

# Show all OpenStack commands and parameters
openstack --help

# Show all OpenStack commands and parameters relating to the "server" parameter
openstack --help server

Checks

Some of these checks require an OpenStack admin OpenRC and for others the OpenRC of the Tenant you want to check on.

# List all compute nodes
openstack compute service list 

# List all network-devices used by the compute nodes
openstack network agent list 

# List all storage-devices/enclosures
openstack volume service list 

# List all users
openstack user list 

# List all projects
openstack project list 

# Show all OpenStack VMs (admin)
openstack server list --all 

# List all available VMs
openstack server list

# Show information of a specific VM
openstack server show as8d7as98d-aisd7-as7d86-a7s6d-asdas789d6a987d

# List all available Networks
openstack network list

# List all available Volumes
openstack volume list

# List all images
openstack image list 

# Show resource-usage per hour for a month, for each project
openstack usage list 

# List all available Flavors (admin)
openstack flavor list --all 

# Show specific Flavor information
openstack flavor show m1.small

Modules - CLI

Nova

# Deploy a CD-based Instance
nova boot --flavor c2r4 --nic net-id=asd897-as987d6-as789d-as8d76-as8d67 --block-device id=as7das90d-asd867as89d6sa9-7a6sd78as6d78,source=image,dest=volume,bus=usb,device=/dev/vdb,size=5,type=cdrom,bootindex=0  MyInstance

Glance

Tenant example: as8d76asd976ds798a6d78sa95das7968d5as978
Image example: as7das90d-asd867as89d6sa9-7a6sd78as6d78

# List all available images for the current Tenant
openstack image list

# Set an Image owner to a specific project
openstack image set as7das90d-asd867as89d6sa9-7a6sd78as6d78 --project as8d76asd976ds798a6d78sa95das7968d5as978

# Set an image to Private
openstack image set as7das90d-asd867as89d6sa9-7a6sd78as6d78 --private

Image sharing

# From the Image owners' OpenRC
openstack image add project as7das90d-asd867as89d6sa9-7a6sd78as6d78 as8d76asd976ds798a6d78sa95das7968d5as978

# Verify status of the shared image
openstack image member list as7das90d-asd867as89d6sa9-7a6sd78as6d78

# Source the receiving Tenant's OpenRC
# Accept the image
 openstack image set --accept as7das90d-asd867as89d6sa9-7a6sd78as6d78

# Stop sharing from the owners' OpenRC
 openstack image remove project as7das90d-asd867as89d6sa9-7a6sd78as6d78 as8d76asd976ds798a6d78sa95das7968d5as978

Magnum

Magnum is used to create Kubernetes clusters.

# Check the Tenants' Overview tab to verify sufficient Quota has been assigned for the new nodes.
# Source the relevant OpenRC file.

# Create a Magnum template.
openstack coe cluster template create --coe kubernetes --image fedora-coreos-36 --external-network Internet-network --network-driver flannel --dns-nameserver 1.1.1.1 --master-flavor c2r4 --flavor c2r4 --docker-storage-driver overlay2 MyTemplate-v1.00

# Deploy cluster based on previously created template.
openstack coe cluster create --cluster-template MyTemplate-v1.00 --keypair MyKeyPair-2023 --master-count 1 --node-count 2 --master-flavor c1r4 --flavor c2r4 --fixed-network Tenant-Tnternal-Network --fixed-subnet Tenant-Tnternal-Network_Subnet --floating-ip-disabled MyClusterName-v1.00

Other

Migrate Hyper-V VM to OpenStack

1. Install Virtio drivers: https://docs.fedoraproject.org/en-US/quick-docs/creating-windows-virtual-machines-using-virtio-drivers/
2. Apply CloudInit: https://cloudbase.it/cloudbase-init/#download
3. Disable Secure boot for VM on Hyper-V if enabled.
4. Convert Hyper-V VHDX -> VHD
5. Convert VHD -> QCOW2
6. Convert QCOW2 -> RAW
7. Upload Image to OpenStack
8. Open Openstack CLI
9. Modify the OpenStack Image: openstack image set –property hw_firmware_type=’uefi’ –property hw_machine_type=’q35’ –property architecture=’x86_64’ MyImage
10. Deploy an Instance based on the Image