sdnotify | Package sdnotify implements systemd readiness notifications | SMS library

by mdlayher Go Version: v1.0.0 License: MIT

X-Ray Key Features Code Snippets Community Discussions(2)Vulnerabilities Install Support

kandi X-RAY | sdnotify Summary

sdnotify is a Go library typically used in Messaging, SMS applications. sdnotify has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

Package sdnotify implements systemd readiness notifications as described in MIT Licensed.

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sdnotify has a low active ecosystem.

It has 33 star(s) with 3 fork(s). There are 3 watchers for this library.

It had no major release in the last 12 months.

sdnotify has no issues reported. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of sdnotify is v1.0.0

Quality

sdnotify has no bugs reported.

Security

sdnotify has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

sdnotify is licensed under the MIT License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

sdnotify releases are available to install and integrate.

Top functions reviewed by kandi - BETA

kandi has reviewed sdnotify and discovered the below as its top functions. This is intended to give you an instant insight into sdnotify implemented functionality, and help decide if they suit your requirements.

Open creates a new Notifier .
New creates a new Notifier .
Notify writes a list of strings to w .
Statusf is a convenience wrapper for Statusf

Get all kandi verified functions for this library.

sdnotify Key Features

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sdnotify Examples and Code Snippets

No Code Snippets are available at this moment for sdnotify.

Community Discussions

Trending Discussions on sdnotify

Systemd watchdog running program via a script

How to ingest logs from app managed by systemd

QUESTION

Systemd watchdog running program via a script

Asked 2018-Oct-11 at 03:47

I have this python code which I need to run using systemd and monitor if it is hung as well. The problem is, when I run the python script directly from systemd, it works fine. However when the python script is run from another shell script which is run from my systemd service, it says

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ANSWER

Answered 2018-Oct-11 at 03:47

use exec, to replace the bash process with python process:

Source https://stackoverflow.com/questions/52734365

QUESTION

How to ingest logs from app managed by systemd

Asked 2017-Mar-30 at 19:19

I have a service that logs structured lines of json to stdout. Using Upstart, I could add console.log to the config file and Upstart would manage saving stdout to /var/log/upstart/.log. Another service, filebeat, would watch this log file, parsing the lines as json and then forwarding them to elasticsearch to be indexed. These logs were managed by logrotate and backed up nightly to s3.

As far as I can tell, there's no console log equivalent in systemd. The issue is then what's the best way to ship my logs out to elasticsearch?

Here are the options I've come up with:

Build log file management into the application

This is what I'm doing right now, but it feels very ugly. Maybe I'm being too dogmatic, but this isn't "12-factor" compliant (I don't want the application to worry about how its stdout is ingested), and I've already dealt with annoying debugging issues with respect to file permissions.

journalbeat

There's another unofficial "beat" called journalbeat that can ingest logs from the systemd journal. The major issue here is that I don't think it supports processing json log lines like filebeat does. I could rip that stuff out of filebeat and send a pr to journalbeat.

Shell redirection, or similar

The idea here is to start the process with a shell or some other stdout-managing program and use that for controlling how the logs are saved. I think this is pretty much a non-starter since I use [Service]Type=notify and sdnotify for startup notification (and that's not going away).

Use logstash

Logstash can ingest from journald and has all of the capabilities to parse out json and forward to es. Configuration will be more complex and I'll have to run logstash, which is heavier than filebeat, but whatever. Leaning towards this right now.

Systemd sorcery

I don't know enough about systemd to know what's possible here. I see that StandardOutput can be set to a file descriptor provided by a socket unit file, but I'm not sure how all of that fits together or if it's even possible/pragmatic.

Sorry this question was so long. Any thoughts are helpful!

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ANSWER

Answered 2017-Mar-30 at 19:19

Continuing to log to STDOUT is a good idea. It is one of the principles of the Twelve Factor App is also recommend by systemd as well as being well supported by container solutions.

Building log management into the app is a bad idea. The app should do one thing and do it well. Log management gets into thorny issues of log rotation or how to handle remote log shipping when the connection is temporarily down.

Journalbeat seems like a good idea. Have you tested that it doesn't work with JSON logs? The internal log structure of the systemd journal is very JSON-like.

If Journalbeat doesn't work, using a syslog daemon like rsyslog to handle the task. The systemd journal is often forwarded to to syslog by default anyway. rsyslog has a module for forwarding logs to Elasticsearch.

Source https://stackoverflow.com/questions/43125100

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Vulnerabilities

No vulnerabilities reported

Install sdnotify

You can download it from GitHub.

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For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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