Dev

Dependencies

• Docker Engine
• git
• Helm
• kubectl
• Minikube
• Tilt

Quick Start

1. Clone the repository to your local machine

   git clone https://github.com/virtool/dev.git
   

2. Create a Cluster

   bash scripts/init.sh

   This:

   • Deletes any existing cluster.
   • Creates a cluster using preset resource limits.
   • Enables the ingress and metrics addons for Minikube.

   You can run commands from init.sh individually if you want to customize the cluster.

3. Add the cluster IP to /etc/hosts:

   bash scripts/hosts.sh

   This puts the IP for the Minikube cluster in /etc/hosts for virtool.local. This will make requests to virtool.local on your machine route to the cluster.

4. Start Tilt

   tilt up

   Tilt manages the Kubernetes development environment. It starts all necessary services (KEDA, MongoDB, OpenFGA, PostgreSQL, Redis) and the Virtool workloads and services.

Tilt

Stopping

You can bring all resources down with tilt down and bring them back up with tilt up.

We find it is necessary to run tilt down before minikube stop for the cluster to stop cleanly.

Live Editing

Use the tilt up -- --to-edit <resource> command to live edit a resource.

This substitutes the image with one built from a local Dockerfile.

For it to work, you must have the repository cloned as a sibling directory to the dev repository. Your parent directory should look like this and include clones of any repositories you want to live edit:

├── dev
├── virtool
├── virtool-ui
├── workflow-create-sample
├── workflow-iimi
└── workflow-pathoscope

Some repositories are not shown in this example.

virtool/virtool

tilt up -- --to-edit backend

For virtool/virtool resources, you have to manually update the resources in Tilt to trigger an image build.

Resources affected by the image and --to-edit backend flag:

• api-jobs
• api-web
• migration
• task-runner
• task-spawner

virtool/virtool-ui

tilt up -- --to-edit ui

Changes to code in the virtool/virtool-ui repository will be immediately reflected in the running UI.

Only the ui resource is affected by the --to-edit ui flag.

Workflows

Any workflow repository can be live edited with the following command:

tilt up -- --to-edit <workflow>

Where workflow is one of:

• build-index
• create-sample
• create-subtraction
• iimi
• pathoscope
• nuvs

Every time the repository changes, the image will be rebuilt.

## Update images

We provide an easy way to update the Virtool container images in the cluster.

### Tilt

Click the 'Pull' button in the top-right of the navigation bar in the Tilt UI.

### Bash

```shell
bash scripts/pull.sh

Wiping the Cluster

If you need to start fresh, you can just run init.sh again:

bash scripts/init.sh