Infrahub by OpsMill

Infrahub by OpsMill acts as a central hub to manage the data, templates and playbooks that powers your infrastructure. At its heart, Infrahub is built on 3 fundamental pillars:

• A Flexible Schema: A model of the infrastructure and the relation between the objects in the model, that's easily extensible.
• Version Control: Natively integrated into the graph database which opens up some new capabilities like branching, diffing, and merging data directly in the database.
• Unified Storage: By combining a graph database and git, Infrahub stores data and code needed to manage the infrastructure.

Infrahub - Demo repository for a DC

This repository is demoing the key Infrahub features for an example data center with VxLAN/EVPN and firewalls. It demonstrates the capabilities to use Infrahub with Arista AVD. Infrahub generates configurations that AVD deploys.

You can run this demo on your pc using docker, or using Github Codespaces.

Running the demo on your pc

Set environment variables

export INFRAHUB_ADDRESS="http://localhost:8000"
export INFRAHUB_API_TOKEN="06438eb2-8019-4776-878c-0941b1f1d1ec"
export CEOS_DOCKER_IMAGE="9r2s1098.c1.gra9.container-registry.ovh.net/external/ceos-image:4.29.0.2F"
export LINUX_HOST_DOCKER_IMAGE="9r2s1098.c1.gra9.container-registry.ovh.net/external/alpine-host:v3.1.1"

Install the Infrahub SDK

poetry install --no-interaction --no-ansi --no-root

Start Infrahub

poetry run inv start

Load schema and data into Infrahub

This will create :

• Basics data (Account, organization, ASN, Device Type, and Tags)
• Locations data (Locations, VLANs, and Prefixes)
• Topology data (Topology, Topology Elements)
• Security data (Policies, rules, objects)

poetry run inv load-schema load-data

Running the demo in Github Codespaces

Spin up in Github Codespaces

Demo flow

1. Generate a Topology (Device, Interfaces, Cabling, BGP Sessions, ...)

Note

The example below creates the topology fra05-pod1

poetry run infrahubctl run bootstrap/generate_topology.py topology=fra05-pod1

2. Add the repository into Infrahub

Note

Reference the Infrahub documentation for the multiple ways this can be done.

mutation AddRepository{
  CoreReadOnlyRepositoryCreate(
    data: {
      name: { value: "infrahub-demo-dc-fabric" }
      location: { value: "https://github.com/opsmill/infrahub-demo-dc-fabric.git" }
    }
  ) {
    ok
    object {
      id
    }
  }
}

3. Create a branch

Via the UI

4. Create a new l2 or l3 service

Via the UI

http://localhost:8000/objects/TopologyNetworkService

Note

The example below creates the Layer2 network service and a another Layer3 on topology fra05-pod1

5. Create a Proposed Changes

Via the UI

Note

This command will run the generator and render the artifacts

6. Try out our pytest plugin

Note

The command will use our infrahub pytest plugin. It will run the different test in the tests folder. Those tests included :

• Syntax checks for all the GraphQL Queries
• Syntax checks for the Checks
• Syntax checks for all the jinja files used in templates
• will use the input/output file to try out the rendering and confirm there is no unexpected missing piece

pytest -v ./tests

7. Create a new Branch

Create directly a new branch test2 in the UI, or if you prefer to use our SDK in CLI :

poetry run infrahubctl branch create test2

9. Try out the topology check

• Modify an Elements in a Topology (example: increase or decrease the quantity of leaf switches in fra05-pod1)

• The checks will run in the Proposed Changes -> check_device_topology will fail.

10. Deploy your environment to ContainerLabs

The containerlab generator automatically generates a containerlab topology artifact for every topology. Every device has its startup config as an artifact.

# Download all artifacts automatically to ./generated-configs/
poetry run python3 scripts/get_configs.py

# Start the containerlab
sudo -E containerlab deploy -t ./generated-configs/clab/fra05-pod1.yml --reconfigure