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Template for deploying Vaultwarden on Fly.io

This is a template for deploying Vaultwarden on Fly.io with Caddy for websockets support and supercronic for hourly restic backups with e-mail failure notification via msmtp.

This uses a single fly machine, within Fly's free allowance.

Usage

You first need to create a new repo for your config, by clicking on the Use this template button on this page.

Then, clone your new repo and cd into it.

Install dependencies

  1. Install go-task:

    We use go-task to automate some steps, you can check the task code under .taskfiles. to see which commands each task run.

    brew install go-task/tap/go-task

  2. Install flyctl:

    brew install flyctl

Configuration

The .config.env file contains environment variables needed to deploy the apps in this template.

  1. Copy the .config.sample.env to .config.env and fill out all the environment variables. All uncommented variables are required.

Fly.io setup

For some commands below, we use a task instead of flyctl because we the task writes (on app creation) and reads (subsequent commands) your app name from the config file. This is the only way to keep your app name hidden.

  1. Signup to Fly

    If you already have a Fly account, use flyctl auth login instead.

    flyctl auth signup

  2. Create a new fly app

    If this is your first app, you'll be asked to add credit card information, but, don't worry, you'll not be charged by this app.

    task fly:app:create

  3. Create a new volume

    This will show you a warning about invididual volumes. It's ok to have a single volume because we're not concerned about downtime for our Vaultwarden instance.

    task fly:volume:create

  4. Deploy your app

    task fly:app:deploy

  5. Setup your custom domain

    After your app is deployed, follow the steps here to setup your custom domain.

  6. Open your new Vaultwarden website

    That's all! Now you can open your custom domain and Vaultwarden should work.

Keeping dependencies up to date

This template uses Renovatebot to scan and open new PRs when dependencies are out of date.

To enable this, open their Github app page, click the "Configure" button, then choose your repo. The template already provides Renovate configs and there's no need for further action.

Troubleshooting

If your deployment failed or you can't open Vaultwarden web, you can see the logs with:

task fly:app:logs

If that command fails (eg, if the machine is stopped), try opening your logs in the browser:

task fly:app:logs:web

You can also ssh in the machine with:

task fly:app:ssh

and check individual logs using overmind:

# Run this command inside your fly machine
overmind connect vaultwarden

This will open a tmux window with vaultwarden logs. You can scroll your tmux window with Ctrl-B-] and use Ctrl-B-D to exit the tmux window.

Substitute vaultwarden with caddy, or backup to see logs for other apps.

FAQ

  1. Why every fly command I run errors with: Error: the config for your app is missing an app name?

    For security reasons the app name is not sdaved in the fly.toml file. In that case, you have to add -a your-app-name to all fly commands.

    Your app name is found in your .config.env file.

    Example:

    fly secrets list -a your-app-name

    Or you can add:

    app = "your-app-name"

    to the beginning of your fly.toml file.