Run Uptime Kuma on Dokku

Perquisites

What is Uptime Kuma?

Uptime Kuma is a self-hosted monitoring tool like "Uptime Robot".

What is Dokku?

Dokku is the smallest PaaS implementation you've ever seen - Docker powered mini-Heroku.

Requirements

• A working Dokku host

Setup

Note: We are going to use the domain uptime.example.com for demonstration purposes. Make sure to replace it with your own domain name.

App and plugins

Create the app

Log onto your Dokku Host to create the Uptime Kuma app:

dokku apps:create uptime-kuma

Domain

To get the routing working, we need to apply a few settings. First we set the domain.

dokku domains:set uptime-kuma uptime.example.com

Persistent storage

To persists user uploads (e.g. avatars) between restarts, create a folder on the host machine and tell Dokku to mount it to the app container.

sudo mkdir -p /var/lib/dokku/data/storage/uptime-kuma
dokku storage:mount uptime-kuma /var/lib/dokku/data/storage/uptime-kuma:/app/data

Push Uptime Kuma to Dokku

Grabbing the repository

First clone this repository onto your machine.

# Via SSH
git clone git@github.com:d1ceward/uptime_kuma_on_dokku.git

# Via HTTPS
git clone https://github.com/d1ceward/uptime_kuma_on_dokku.git

Set up your Dokku server as a Git remote

git remote add dokku dokku@example.com:uptime-kuma

Push Uptime Kuma to Dokku

git push dokku master

SSL certificate

Last but not least, we can go an grab the SSL certificate from Let's Encrypt.

# Install letsencrypt plugin
dokku plugin:install https://github.com/dokku/dokku-letsencrypt.git

# Set certificate contact email
dokku letsencrypt:set uptime-kuma email you@example.com

# Generate certificate
dokku letsencrypt:enable uptime-kuma

Wrapping up

Your Uptime Kuma instance should now be available on https://uptime.example.com.

Possible issue with proxy ports mapping

If the Plausible instance is not available at the address https://plausible.example.com check the return of this command :

dokku proxy:ports plausible

### Valid return
-----> Port mappings for plausible
    -----> scheme  host port  container port
    http           80         5000

### Invalid return
-----> Port mappings for plausible
    -----> scheme  host port  container port
    http           5000       5000

If the return is not the expected one, execute this command :

dokku proxy:ports-set plausible http:80:5000

If the return of the command was valid and Plausible is still not available, feel free to fill an issue in the issue tracker.