### Start and Enable Libvirtd Service on CentOS

Source: https://github.com/openstack/kolla-ansible/blob/master/doc/source/contributor/vagrant-dev-env.md

Starts the libvirtd service and enables it to start on boot for CentOS systems.

```bash
sudo systemctl start libvirtd
sudo systemctl enable libvirtd
```

--------------------------------

### Install Diskimage-Builder

Source: https://github.com/openstack/kolla-ansible/blob/master/doc/source/reference/networking/octavia.md

Install `diskimage-builder` within a virtual environment for creating the Amphora image. Activate the virtual environment before installation.

```bash
python3 -m venv dib-venv
source dib-venv/bin/activate
pip install diskimage-builder
```

--------------------------------

### Install Python Tacker Client

Source: https://github.com/openstack/kolla-ansible/blob/master/doc/source/reference/orchestration-and-nfv/tacker-guide.md

Install the python-tackerclient using pip to interact with the Tacker service from your client.

```bash
$ pip install python-tackerclient
```

--------------------------------

### Install tox

Source: https://github.com/openstack/kolla-ansible/blob/master/doc/source/contributor/running-tests.md

Install the tox tool using pip. This is a prerequisite for running the test suite.

```console
pip install tox
```

--------------------------------

### Bootstrap and Install Bifrost Services

Source: https://github.com/openstack/kolla-ansible/blob/master/doc/source/reference/deployment-and-bootstrapping/bifrost.md

Installs and bootstraps Bifrost services using Ansible playbooks. This command configures RabbitMQ, sets the OS_CLOUD environment variable, and runs the main installation playbook with specific configurations.

```console
cd /bifrost
./scripts/env-setup.sh
export OS_CLOUD=bifrost
cat > /etc/rabbitmq/rabbitmq-env.conf << EOF
HOME=/var/lib/rabbitmq
EOF
ansible-playbook -vvvv \
-i /bifrost/playbooks/inventory/target \
/bifrost/playbooks/install.yaml \
-e @/etc/bifrost/bifrost.yml \
-e @/etc/bifrost/dib.yml \
-e skip_package_install=true
```

--------------------------------

### Example HNAS Route Configuration

Source: https://github.com/openstack/kolla-ansible/blob/master/doc/source/reference/storage/manila-hnas-guide.md

Example of adding a route in HNAS for a specific EVS to a tenant network.

```bash
$ console-context --evs 3 route-net-add --gateway 192.168.1.1 \
  10.0.0.0/24
```

--------------------------------

### Install Dependencies for Amphora Image Build (Ubuntu)

Source: https://github.com/openstack/kolla-ansible/blob/master/doc/source/reference/networking/octavia.md

Install necessary packages on Ubuntu for building the Octavia Amphora image.

```bash
sudo apt -y install debootstrap qemu-utils git kpartx
```

--------------------------------

### Start Default All-in-One Vagrant Environment

Source: https://github.com/openstack/kolla-ansible/blob/master/doc/source/contributor/vagrant-dev-env.md

Navigates to the Vagrant configuration directory and starts the default all-in-one CentOS 7-based development environment.

```bash
cd kolla-ansible/contrib/dev/vagrant && vagrant up
```

--------------------------------

### Install Kolla-Ansible from Local Git Repository

Source: https://github.com/openstack/kolla-ansible/blob/master/doc/source/train.md

If the git repository is in the current directory, use this command to install the package and avoid fetching from PyPI.

```bash
pip install ./kolla-ansible
```

--------------------------------

### Boot Bare Metal Instance

Source: https://github.com/openstack/kolla-ansible/blob/master/doc/source/reference/bare-metal/ironic-guide.md

Launch a server instance on the provisioned bare metal hardware using the previously created flavor and network. Adapt image, flavor, key, network, and instance name as needed.

```bash
openstack server create --image cirros --flavor my-baremetal-flavor \
  --key-name mykey --network public1 demo1
```

--------------------------------

### Install Vagrant Vbguest Plugin

Source: https://github.com/openstack/kolla-ansible/blob/master/doc/source/contributor/vagrant-dev-env.md

Installs the vagrant-vbguest plugin to ensure VirtualBox Guest Additions are installed in the VM.

```bash
vagrant plugin install vagrant-vbguest
```

--------------------------------

### Create Instance with Network

Source: https://github.com/openstack/kolla-ansible/blob/master/doc/source/reference/networking/designate-guide.md

Starts a new instance with specified image, flavor, key pair, and network. Ensure NETWORK_ID is set.

```bash
openstack server create \
  --image cirros \
  --flavor m1.tiny \
  --key-name mykey \
  --nic net-id=${NETWORK_ID} \
  my-vm
```

--------------------------------

### Initialize Demo Resources with init-runonce Script

Source: https://github.com/openstack/kolla-ansible/blob/master/doc/source/user/quickstart-development.md

An optional script for demo purposes that creates example networks and images. Use with caution as it may conflict with custom configurations.

```console
kolla-ansible/tools/init-runonce
```

--------------------------------

### Install Kolla-Ansible from Source

Source: https://github.com/openstack/kolla-ansible/blob/master/deploy-guide/source/train.md

When installing kolla-ansible from source, ensure the kolla_ansible python module is installed. Use this command if the git repository is in the current directory.

```bash
pip install /path/to/kolla-ansible
```

```bash
pip install ./kolla-ansible
```

--------------------------------

### Run Init Scripts for VPNaaS Demo

Source: https://github.com/openstack/kolla-ansible/blob/master/doc/source/reference/networking/neutron-extensions.md

These scripts can be used for demo purposes to set up and verify VPN services. They are optional and may require customisation.

```bash
tools/init-runonce
tools/init-vpn
```

--------------------------------

### Initialize Demo Resources with init-runonce

Source: https://github.com/openstack/kolla-ansible/blob/master/deploy-guide/source/quickstart.md

Execute the `init-runonce` script for demo purposes to create example networks and images. Note that this script is optional and may require adjustments based on your custom OpenStack configuration.

```bash
/path/to/venv/share/kolla-ansible/init-runonce
```

--------------------------------

### Install Kolla-Ansible

Source: https://github.com/openstack/kolla-ansible/blob/master/deploy-guide/source/quickstart.md

Install kolla-ansible and its dependencies using pip from a Git repository.

```console
pip install git+https://opendev.org/openstack/kolla-ansible@|KOLLA_BRANCH_NAME|
```

--------------------------------

### Install Ansible Galaxy Requirements

Source: https://github.com/openstack/kolla-ansible/blob/master/deploy-guide/source/quickstart.md

Install Ansible Galaxy dependencies required by Kolla-Ansible.

```console
kolla-ansible install-deps
```

--------------------------------

### Prepare Full Backup for Restore (Container)

Source: https://github.com/openstack/kolla-ansible/blob/master/doc/source/admin/mariadb-backup-and-restore.md

Start a container from the Mariabackup image to prepare a full backup. This involves extracting the backup data and preparing it for restoration.

```bash
docker run --rm -it --volumes-from mariadb --name dbrestore \
   --volume mariadb_backup:/backup \
   quay.io/openstack.kolla/mariadb-server:master-rocky-10 \
   /bin/bash
(dbrestore) $ cd /backup
(dbrestore) $ rm -rf /backup/restore
(dbrestore) $ mkdir -p /backup/restore/full
(dbrestore) $ gunzip mysqlbackup-04-10-2018.qp.xbc.xbs.gz
(dbrestore) $ mbstream -x -C /backup/restore/full/ < mysqlbackup-04-10-2018.qp.xbc.xbs
(dbrestore) $ mariabackup --prepare --target-dir /backup/restore/full
```

--------------------------------

### Install OpenStack CLI Client

Source: https://github.com/openstack/kolla-ansible/blob/master/doc/source/user/quickstart-development.md

Installs the python-openstackclient using pip, with constraints for the master branch.

```console
pip install python-openstackclient -c https://releases.openstack.org/constraints/upper/master
```

--------------------------------

### Initialize and Deploy Tacker Demo

Source: https://github.com/openstack/kolla-ansible/blob/master/doc/source/reference/orchestration-and-nfv/tacker-guide.md

Execute these scripts from the kolla-ansible git repository to initialize the demo VNF creation process. The init-runonce script sets up necessary components, and deploy-tacker-demo registers a VIM, creates a VNFD, and deploys a VNF.

```bash
./tools/init-runonce
./contrib/demos/tacker/deploy-tacker-demo
```

--------------------------------

### Install Dependencies for Ubuntu

Source: https://github.com/openstack/kolla-ansible/blob/master/doc/source/contributor/vagrant-dev-env.md

Installs required packages for Vagrant development on Ubuntu 16.04 or later.

```bash
sudo apt install vagrant ruby-dev ruby-libvirt python-libvirt \
qemu-utils qemu-kvm libvirt-dev nfs-kernel-server zlib1g-dev libpng12-dev \
gcc git
```

--------------------------------

### Prepare New Controller Hosts

Source: https://github.com/openstack/kolla-ansible/blob/master/doc/source/user/adding-and-removing-hosts.md

Use the `bootstrap-servers` command to prepare new controller hosts. This command adds entries to `/etc/hosts` which is required by some services like RabbitMQ. Ensure all controllers are included if using `--limit`.

```bash
kolla-ansible bootstrap-servers -i <inventory> [ --limit <limit> ]
```

--------------------------------

### Install Kolla-Ansible

Source: https://github.com/openstack/kolla-ansible/blob/master/doc/source/user/quickstart.md

Install Kolla-Ansible and its dependencies from source using pip within the activated virtual environment.

```console
pip install git+https://opendev.org/openstack/kolla-ansible@master
```

--------------------------------

### Install Telnet Client

Source: https://github.com/openstack/kolla-ansible/blob/master/doc/source/admin/password-rotation.md

Install the telnet client utility, which is required for flushing Memcached data. Use the appropriate package manager for your distribution (apt or dnf).

```bash
apt/dnf install telnet
```

--------------------------------

### Create a New Release Note

Source: https://github.com/openstack/kolla-ansible/blob/master/doc/source/contributor/release-notes.md

Use this command to generate a new release note scaffold. Replace '<summary-line-with-dashes>' with a descriptive summary.

```console
tox -e venv -- reno new <summary-line-with-dashes>
```

--------------------------------

### Install Python Build Dependencies (Debian/Ubuntu)

Source: https://github.com/openstack/kolla-ansible/blob/master/deploy-guide/source/quickstart.md

Install necessary build dependencies for Python on Debian or Ubuntu.

```console
sudo apt install git python3-dev libffi-dev gcc libssl-dev libdbus-glib-1-dev
```

--------------------------------

### Run Basic Bootstrap Command

Source: https://github.com/openstack/kolla-ansible/blob/master/doc/source/reference/deployment-and-bootstrapping/bootstrap-servers.md

The fundamental command to initiate the server bootstrapping process. Replace `INVENTORY` with your Ansible inventory file path.

```console
kolla-ansible bootstrap-servers -i INVENTORY
```

--------------------------------

### Start NFS Service

Source: https://github.com/openstack/kolla-ansible/blob/master/doc/source/reference/storage/cinder-guide.md

Start the NFS service on the storage node to make the configured exports available.

```bash
systemctl start nfs
```

--------------------------------

### Copy All-in-One Inventory File

Source: https://github.com/openstack/kolla-ansible/blob/master/deploy-guide/source/quickstart.md

Copy the 'all-in-one' example inventory file to the current directory for single-node deployments.

```console
cp /path/to/venv/share/kolla-ansible/ansible/inventory/all-in-one .
```

--------------------------------

### Prometheus Pushgateway URL Example

Source: https://github.com/openstack/kolla-ansible/blob/master/deploy-guide/source/zed.md

Example of a resulting URL for the Prometheus Pushgateway based on configuration options.

```text
prometheus://127.0.0.1:9091/ \
metrics/job/openstack-telemetry/?timeout=180&verify_ssl=True
```

--------------------------------

### Copy Kolla Configuration Files

Source: https://github.com/openstack/kolla-ansible/blob/master/deploy-guide/source/quickstart.md

Copy the example Kolla configuration files (globals.yml, passwords.yml) to the /etc/kolla directory.

```console
cp -r /path/to/venv/share/kolla-ansible/etc_examples/kolla/* /etc/kolla
```