Upgrade a Chef client

gistfile1.sh

# Upgrade a Chef client using the steps described here:
#
#    http://wiki.opscode.com/display/chef/Upgrading+Chef+0.9.x+to+Chef+0.10.x
#
# This script can be invoked with:
#
#     ssh <server> 'curl https://raw.github.com/gist/1451167/<gist-guid>/gistfile1.sh | sh'

# Point to opscode repos:
#
echo "deb http://apt.opscode.com/ `lsb_release -cs`-0.10 main" | sudo tee /etc/apt/sources.list.d/opscode.list

# Add the GPG Key and Update Index:
#
sudo mkdir -p /etc/apt/trusted.gpg.d
gpg --keyserver keys.gnupg.net --recv-keys 83EF826A
gpg --export [email protected] | sudo tee /etc/apt/trusted.gpg.d/opscode-keyring.gpg > /dev/null

# Update and add keyring to ensure it stays up-to-date:
#
sudo apt-get -y update
sudo apt-get -y install opscode-keyring # permanent upgradeable keyring

# Upgrade existing dependencies:
#
sudo apt-get -y upgrade

# Upgrade Chef:
#
sudo apt-get -y install chef