Category Archives: Uncategorized

Predicting multiple metrics in Splunk

Splunk has a predict command that can be used to predict a future value of a metric based on historical values. This is not a Machine Learning or an Artificial Intelligence functionality, but a plain-old-statistical analysis.

So if we have a single metric, based on historical results we can produce a nice prediction for the future (of definable span), but predicting multiple metrics in Splunk might not be as straightforward.

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How to collect StatsD metrics from rippled server using Splunk

The XRP Ledger (XRPL) is a decentralized, public blockchain and rippled server software (rippled in future references) powers the blockchain. rippled follows the peer-to-peer network, processes transactions, and maintains some ledger history.

rippled is capable of sending its telemetry data using StatsD protocol to 3rd party systems like Splunk.

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How to use an SSH key stored in Azure Key Vault while building Azure Linux VMs using Terraform

So I want to use the same SSH Public key to be able to authenticate across multiple Linux VMs that I’m building in Azure in Terraform. While I did find a lot of examples (including among Terraform example repo) of how to do it if you have the key stored on your local machine I couldn’t find (or didn’t search long enough) how to use an SSH key stored in Azure Key Vault while building Azure Linux VMs using Terraform.

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Choosing a Cloud Provider for a Bootstrapped StartUp

There are many different options for Funded start-ps to get free credits from various cloud providers, but choosing a cloud provider for a Bootstrapped startup is a bit harder.

Some might have already a preference towards one cloud provider over another (based on their experience or other factors), but here I’m trying to compare them from a pure “free cloud provider credits for a bootstrapped startup” perspective,

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Create a Random Bit Set with Jinja

Once in a while, when working with Jinja templating engine, you might need to create a random Bit Set with Jinja. Some might also call it a Binary Flag Set.

Basically, this will be a binary number (for example 10110) where each digit (bit) represents whether something is on/enabled/present or off.

In some systems, this binary number is actually stored as a base 10 integer. So 10110 will be stored as 22.

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