A small guide on getting started with Apprise notifications.

Standalone docker container: linuxserver/apprise-api

Set up the docker compose as preferred:

---
version: "2.1"
services:
  apprise-api:
    image: lscr.io/linuxserver/apprise-api:latest
    container_name: apprise-api
    environment:
      - PUID=1000
      - PGID=1000
      - TZ=Etc/UTC
    volumes:
      - /path/to/apprise-api/config:/config
    ports:
      - 8000:8000
    restart: unless-stopped

Then browse to the webui. Here you'll click Configuration Manager, read the overview and then click on Configuration. Under Configuration you'll craft/paste your notification config.

The simplest way is just paste the url's as is (like in the example above).
There are many ways to customize with tags, groups, json and more. Read caronc/apprise-api for more info!

Look at the apprise wiki: Notification Services for more info about how the url syntax for different services works.

You can also use the caronc/apprise-api to host the api as a frontend to an already existing Apprise-setup on the host.

Customize the notify.sh file.

After you're done with the setup of the container and tried your notifications, you can copy the notify_apprise.sh file to notify.sh and start editing it.

Comment out/remove the bare metal apprise-command (starting with apprise -vv -t...). Uncomment and edit the AppriseURL variable and curl line It should look something like this when curling the API:

send_notification() {
Updates=("$@")
UpdToString=$( printf "%s\n" "${Updates[@]}" )
FromHost=$(hostname)

printf "\nSending Apprise notification\n"

MessageTitle="$FromHost - updates available."
# Setting the MessageBody variable here.
read -d '\n' MessageBody << __EOF
Containers on $FromHost with updates available:

$UpdToString

__EOF

AppriseURL="http://IP.or.mydomain.tld:8000/notify/apprise"
curl -X POST -F "title=$MessageTitle" -F "body=$MessageBody" -F "tags=all" $AppriseURL

}

That's all!

On host installed Apprise

Follow the official guide on caronc/apprise!

A brief, basic "get started"

Install apprise
- python package pip install apprise
- packaged in EPEL/Fedora dnf install apprise
- packaged in AUR [yay/pikaur/paru/other] apprise
Create a config file with your notification credentials (source of notifications):

mailto://user:password@yahoo.com
slack://token_a/token_b/token_c
kodi://example.com

Then either source the notifications with -c=/path/to/config/apprise or store them in PATH to skip referencing (~/.apprise or ~/.config/apprise).

Test apprise with a single notification:
- apprise -vv -t 'test title' -b 'test notification body' 'mailto://myemail:mypass@gmail.com'
Set up your notification URL's and test them.
- Look at the apprise wiki: Notification Services for more info about how the url syntax for different services works.

When done, customize the notify.sh file.