Programming language: Go
License: MIT License
Tags: Command Line     Standard CLI    
Latest version: v0.5

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Ops is a tool for creating and running a Nanos unikernel. It is used to package, create and run your application as a nanos unikernel instance.

Check out the DOCS


Most users should just download the binary from the website:

Binary install

curl https://ops.city/get.sh -sSfL | sh

Build and Install from source

Building from source is easy if you have used Go before.

This program requires GO Version 1.13.x or greater.

Installing from source follows these general steps:

Install dependencies:

make deps


make build

macOS notes:

GO111MODULE=on go build -ldflags "-w"

For detailed instructions please consult the documentation.

Basic usage examples

Before learning more about ops it is a good idea to see some basic usage examples. Below are links to simple examples using various programming platforms:

Let's run your first unikernel right now.


Throw this into hi.js:

const http = require('http');
http.createServer((req, res) => {
    res.writeHead(200, { 'Content-Type': 'text/plain' });
    res.end('Hello World\n');
}).listen(8083, "");
console.log('Server running at');

Then you can run it like so:

ops pkg load node_v11.5.0 -p 8083 -f -n -a hi.js

Want to push your app out to the cloud?

For Google: https://nanovms.gitbook.io/ops/google_cloud

For AWS: https://nanovms.gitbook.io/ops/aws


Various langauge examples can be found at https://github.com/nanovms/ops-examples.


  • Nginx
  • HAProxy
  • Tarantool
  • Hiawatha
  • Mosquitto
  • Kache
  • Gnatsd
  • Wasmer

You can always find more pre-made packages via:

ops pkg list

Apple M1 Users

The Apple M1 and M2 are ARM based. OPS is built for users primarily deploying to x86 based servers. While you can certainly run ARM builds with Nanos and OPS be aware that if you are trying to run x86 builds (the default) on ARM based M1s you won't be able to use hardware acceleration.

Build a bootable image

ops build <app>

Package and run

ops run <app>
# or
ops run -p <port> <app>

Using a config file

ops run -p <port> -c <file> <app>

Example config file

ops config files are plain JSON, below is an example


Setup networking

New users wishing to play around in a dev environment are encouraged to use the default user-mode networking. Other production users are encouraged to utilize native cloud builds such as Google Cloud which handle networking for you.

Only advanced/power users should use the bridge networking option.

Reporting Bugs

Feel free to open up a pull request. It's helpful to have your OPS version and the release channel you are using.

Also - if it doesn't work on the main release you can try the nightly - the main release can tail the nightly by many weeks sometimes.

ops version

if you are using a package, get the package hash:

jq '."gnatsd_1.4.1"' ~/.ops/packages/manifest.json

Pull Requests

If you have an idea for a new feature and it might take longer than a few hours or days to do it's worth opening a feature request tkt to ideate it first before jumping into code. There might be someone already working on the feature or plans to do something entirely different.



Feel free to email security at.


If you are having trouble running a particular application please feel free to open an issue and we can take a look. In general we'll only want to support the latest release from a given application/project, however, if you really want/need support for something older there are paid support plans available - contact the folks at https://nanovms.com.