78 lines
2.8 KiB
Markdown
78 lines
2.8 KiB
Markdown
# Examples
|
|
|
|
There are a million ways to use ntfy, but here are some inspirations. I try to collect
|
|
<a href="https://github.com/binwiederhier/ntfy/tree/main/examples">examples on GitHub</a>, so be sure to check
|
|
those out, too.
|
|
|
|
## A long process is done: backups, copying data, pipelines, ...
|
|
I started adding notifications pretty much all of my scripts. Typically, I just chain the <tt>curl</tt> call
|
|
directly to the command I'm running. The following example will either send <i>Laptop backup succeeded</i>
|
|
or ⚠️ <i>Laptop backup failed</i> directly to my phone:
|
|
|
|
```
|
|
rsync -a root@laptop /backups/laptop \
|
|
&& zfs snapshot ... \
|
|
&& curl -H prio:low -d "Laptop backup succeeded" ntfy.sh/backups \
|
|
|| curl -H tags:warning -H prio:high -d "Laptop backup failed" ntfy.sh/backups
|
|
```
|
|
|
|
## Server-sent messages in your web app
|
|
Just as you can [subscribe to topics in the Web UI](subscribe/web.md), you can use ntfy in your own
|
|
web application. Check out the <a href="/example.html">live example</a> or just look the source of this page.
|
|
|
|
## Notify on SSH login
|
|
Years ago my home server was broken into. That shook me hard, so every time someone logs into any machine that I
|
|
own, I now message myself. Here's an example of how to use <a href="https://en.wikipedia.org/wiki/Linux_PAM">PAM</a>
|
|
to notify yourself on SSH login.
|
|
|
|
=== "/etc/pam.d/sshd"
|
|
```
|
|
# at the end of the file
|
|
session optional pam_exec.so /usr/bin/ntfy-ssh-login.sh
|
|
```
|
|
|
|
=== "/usr/bin/ntfy-ssh-login.sh"
|
|
```bash
|
|
#!/bin/bash
|
|
if [ "${PAM_TYPE}" = "open_session" ]; then
|
|
curl \
|
|
-H prio:high \
|
|
-H tags:warning \
|
|
-d "SSH login: ${PAM_USER} from ${PAM_RHOST}" \
|
|
ntfy.sh/alerts
|
|
fi
|
|
```
|
|
|
|
## Collect data from multiple machines
|
|
The other day I was running tasks on 20 servers, and I wanted to collect the interim results
|
|
as a CSV in one place. Each of the servers was publishing to a topic as the results completed (`publish-result.sh`),
|
|
and I had one central collector to grab the results as they came in (`collect-results.sh`).
|
|
|
|
It looked something like this:
|
|
|
|
=== "collect-results.sh"
|
|
```bash
|
|
while read result; do
|
|
[ -n "$result" ] && echo "$result" >> results.csv
|
|
done < <(stdbuf -i0 -o0 curl -s ntfy.sh/results/raw)
|
|
```
|
|
=== "publish-result.sh"
|
|
```bash
|
|
// This script was run on each of the 20 servers. It was doing heavy processing ...
|
|
|
|
// Publish script results
|
|
curl -d "$(hostname),$count,$time" ntfy.sh/results
|
|
```
|
|
|
|
## Ansible, Salt and Puppet
|
|
You can easily integrate ntfy into Ansible, Salt, or Puppet to notify you when runs are done or are highstated.
|
|
One of my co-workers uses the following Ansible task to let him know when things are done:
|
|
|
|
```yml
|
|
- name: Send ntfy.sh update
|
|
uri:
|
|
url: "https://ntfy.sh/{{ ntfy_channel }}"
|
|
method: POST
|
|
body: "{{ inventory_hostname }} reseeding complete"
|
|
```
|