If you collect stats from a switch with SNMP, the field ifOperStatus will be numeric - 1 for up, 2 for down, looking something like this.
This snippet provides some Flux to pull current statuses out of InfluxDB and map the value over to a more human readable format
Just occassionally, you have to exec into a docker container in order to troubleshoot whatever app you're running.
A good image won't have unnecessary tools installed though, so things like ps tend to be missing.
Whilst you can install these with apt I can never remember the package name for ps so this snippet exists so that I don't have to
If you've got multiple drives mounted in Windows and are monitoring usage with Telegraf, you might find you want to add a specific tag to just one drive for consumption by something in a later workflow.
For example, you might want to alert on root partitions across all servers (i.e. not just Windows boxes) so might want to add a tag to just the C: drive to mark it as a root partition
The [win_perf_counters](https://github.com/influxdata/telegraf/tree/master/plugins/inputs/win_perf_counters) input plugin supports using a Wildcard, so you can easily capture all disks, but it doesn't directly allow you to tag just a single disk within that
This snippet details how to use the Template Processor plugin to conditionally apply a tag based on the value of another tag using a Golang string template
You've got a (presumably) large tarball that you want to grep within, but don't want to extract the thing to do so
What you want to know, is which files within the archive contain a specific pattern so that you can extract just those one
This snippet details how to run grep against files within a tarball
It's not a common requirement, but sometimes you want to have something to use a plaintext connection, and then tunnel that onwards over a TLS connection.
My most common use for this is to make it easy to intercept/inspect behaviour between some software and a HTTPS endpoint controlled by someone else - if you can get the software to make a plaintext connection, you can tunnel it onwards whilst running pcaps/logging to observe the conversation
To achieve this, we
netcat listen on a port of our choosings_client to effect the tunnelnetcat
This snippet uses the string template's range function to iterate over either .Fields or .Tags printing both key and value
Maven is a software/dependency management tool for Java - it can be used to pull in dependencies and build a jar from a bunch of source
By default, the jar won't have dependencies rolled into it. Sometimes though, you want the overhead of the bigger jar.
Docker is everywhere.... It's syntax is fairly simple, but sometimes you need a small prompt, this page is that prompt
If you're wanting to make multiple requests against a server (scraping pages, calling an API, whatever) then you may want to re-use connections rather than establishing a new one for each request (incurring the overhead of a TCP 3-way and SSL handshake each time).
The requests module has support for this in it's Session module. It pools connections, so can re-use an existing connection where one is available (it can also persist auth, cookies, proxy settings etc between requests).
This short LUA snippet lets you check whether a table contains a specific value