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This file documents how to install OpenCrowbar on a basic install of Ubuntu or CentOS without needing to create a crowbar ISO first.

####Caveats:

  • Online install mode still has plenty of bugs to work out.
  • Especially where the OpenCrowbar web UI is concerned. Doing an online install as described by this README will result in a broken web UI. The OpenCrowbar CLI still works, though.
  • Online install mode is primarily intended as a development aid for now. If you want to deploy something more production oriented, build the ISO using the usual build process.

####Assumptions:

  • Your primary NIC has an IP address of 192.168.124.10/24
  • You have at least 20 gigs of disk space and 4 gigs of ram.
  • You are running either as root or as crowbar.

####Instructions:

1: Install a basic install of Ubuntu Server or CentOS. 2: Do whatever is needed to be able to install packages from the Internet. 3: Install git, rubygems, the ruby development packages, rpm, sudo, debootstrap, and the json gem. This may involve setting up sane http_proxy and https_proxy environment variables. 4: Clone the OpenCrowbar repository from http://github.com/crowbar/crowbar.git, and cd into the newly-created crowbar directory. 5: In the crowbar repository, run ./dev switch. This will check out the barclamps we need. 6: Run ./install, and wait. 7: Profit.

####Neato things:

  • You don't need to have a direct connection to the Internet at all to deploy OpenCrowbar with this code. The install process pulls all the packages it needs entirely over http, so all you need is access to an http proxy that does have access to the Internet. If you export an appropriate http_proxy before starting the install, the install process and any nodes you bring up will wind up using that proxy for all package fetching.
  • The current code deploys its own caching proxy before installing anything. This allows us to minimize the amout of data we have to pull from the Internet.
  • You don't need to have ISO images of the operating systems you want to install as long as you have an active Internet connection.