Grafonnet, a Jsonnet library for generating Grafana dashboards

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Potentially useful way to extend the Infrastructure as Code pattern. Grafonnet provides a simple way of writing Grafana dashboards. It leverages the data templating language Jsonnet. It enables you to write reusable components that you can use and reuse for multiple dashboards.

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How to shut down VirtualBox / Vagrant from CLI

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So you need to stop one or more running VirtualBox instances that you may have started and are hanging around. Here are a few helpful commands:

List all running machines (returns name and UUID)
VBoxManage list runningvms

Stop running VMs by "hibernating" them (recommended to avoid data loss)
VBoxManage controlvm <name|uuid> savestate

Poweroff running VMs (not recommended because we may lose data in the guest)
VBoxManage controlvm <name|uuid> poweroff

Use ACPI in an ACPI-aware guest OS (preferable to poweroff for graceful shutdown of guests)
VBoxManage controlv m <name|uuid> acpipowerbutton

New Relic Goodness

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Send deployment information directly to New Relic via HTTP.

Ever wish you knew what impact a new deployment had on your web app and when?  Trying to keep track of deployments (especially in a continuous deployment environment) can be error prone and tedious.  Why not just send those details automatically to New Relic?  You can - check it out from the New Relic site:

To notify New Relic of a deployment, you can POST to

https://rpm.newrelic.com/deployments.xml

and add the API key as a header

x-api-key: 8d00e2869400597af4a114d31789088e3724f391f287a4c

To use the API Key turn on API access in your account integration settings.

This example uses the application id.  If you were to specify the optional description, revision, changelog, and user fields, the curl command would look like this: