The smallest, easiest way to run Docker in production at scale. Everything in RancherOS is a container managed by Docker. This includes system services such as udev and rsyslog. RancherOS includes only the bare minimum amount of software needed to run Docker. This keeps the binary download of RancherOS to about 20MB. Everything else can be pulled in dynamically through Docker.

Everything in RancherOS is a Docker container. We accomplish this by launching two instances of Docker. One is what we call the system Docker which runs as PID 1. System Docker then launches a container that runs the user Docker. The user Docker is then the instance that gets primarily used to create containers. We created this separation because it seemed logical and also it would really be bad if somebody did docker rm -f $(docker ps -qa) and deleted the entire OS.

v0.3.0 - Docker 1.6.0 - Linux 3.19.2

https://github.com/rancherio/os/releases/download/v0.3.0/rancheros.iso

We have 2 different virtualization types of AMIs. SSH keys are added to the rancher user, so you must log in using the rancher user.

Paravirtual

HVM

HVM was introduced in v0.3.0 and only supports v0.3.0+.

We are providing a disk image that users can download and import for use in Google Compute Engine. The image can be obtained from the release artifacts for RancherOS v0.3.0.

Download Image

To import the image into your project follow the instructions below:

• Upload an image into Compute Engine
• Import RAW image

The image supports RancherOS cloud config functionality. Additionally, it merges the SSH keys from the project, instance and cloud-config and adds them to the rancher user.

• Add GCE daemon support. (Manages users)

Please refer to our website to read all about RancherOS. It has detailed information on how it works, getting-started and other details.

If you need any help with RancherOS or Rancher, please join us at either our rancherio Google Groups or #rancher IRC channel where most of our team hangs out at.

Please submit any RancherOS bugs, issues, and feature requests to rancherio/os.

Please submit any Rancher bugs, issues, and feature requests to rancherio/rancher.

#License Copyright (c) 2014-2015 Rancher Labs, Inc.

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.