Post a Comment On: Jinn Koriech's Blog

Ruby dependencies and versions on distro's aren't always maintained to our liking. I've had problems deploying Chef on CentOS appliances running ruby on rails apps that break when the packages for Chef are installed. I know the problem should be fixed so dependencies can be handled correctly, but that's not always going to happen as quickly as we'd like. So I adapted the default CentOS bootstrap script to install Chef within an rbenv environment.

Hopefully I won't need to ever do this for Debian.

Since this is limited to CentOS I have the following hard-coded condition in the recipe[chef-client::service]

*** service.rb.orig 2012-03-29 22:36:48.000000000 +0100 --- service.rb 2012-03-18 14:29:20.000000000 +0000 *************** *** 50,55 **** --- 50,60 ---- init_content = IO.read("#{node["languages"]["ruby"]["gems_dir"]}/gems/chef-#{chef_version}/distro/#{dist_dir}/etc/init.d/chef-client") conf_content = IO.read("#{node["languages"]["ruby"]["gems_dir"]}/gems/chef-#{chef_version}/distro/#{dist_dir}/etc/#{conf_dir}/chef-client") + # We're always using rbenv on CuntOS, so ensure the service does too + if platform?("centos") then + conf_content = "#{conf_content}\nexport PATH=\"$HOME/.rbenv/bin:/usr/local/bin:$PATH\"\neval \"$($HOME/.rbenv/bin/rbenv init -)\"\nrbenv shell $(rbenv versions | tail -n 1| grep -Eo '\w+\.\w+\.\w+-\w+')\n" + end + file "/etc/init.d/chef-client" do content init_content mode 0755
Adapt the following bootstrap script as needed, and use at your own risk.

bash -c -x -e ' <%= "export http_proxy=\"#{knife_config[:bootstrap_proxy]}\"" if knife_config[:bootstrap_proxy] -%> # # EXAMPLE BOOTSTRAP LINE # # knife bootstrap -N your_host -E development -r 'role[base-server]','role[lsb]' --template-file ~/scm/git/chef/bootstrap/centos5-rbenv.erb your_host_fqdn # # CONFIGURATION # export RBENV_VERSION="1.9.3-p125" # # MAIN # [ -f /usr/bin/git ] || yum -y install git if [ ! -d ~/ruby-build ]; then cd ~/ git clone git://github.com/sstephenson/ruby-build.git cd ~/ruby-build ./install.sh fi if [ ! -d ~/.rbenv ]; then cd ~/ git clone git://github.com/sstephenson/rbenv.git .rbenv echo "export PATH=\"\$HOME/.rbenv/bin:/usr/local/bin:\$PATH\"" >> ~/.bash_profile echo "export PATH=\"\$HOME/.rbenv/bin:/usr/local/bin:\$PATH\"" >> ~/.zshenv echo "eval \"\$(\$HOME/.rbenv/bin/rbenv init -)\"" >> ~/.bash_profile echo "eval \"\$(\$HOME/.rbenv/bin/rbenv init -)\"" >> ~/.zshenv echo "source \$HOME/.bash_profile" >> ~/.bashrc echo "rbenv shell $RBENV_VERSION" >> ~/.bashrc echo "source \$HOME/.zshenv" >> ~/.zshrc echo "rbenv shell $RBENV_VERSION" >> ~/.zshrc fi export PATH="$HOME/.rbenv/bin:/usr/local/bin:$PATH" eval "$($HOME/.rbenv/bin/rbenv init -)" if $HOME/.rbenv/bin/rbenv versions | grep -q $RBENV_VERSION && [ -x $HOME/.rbenv/shims/ruby ] ; then eval "`$HOME/.rbenv/bin/rbenv sh-shell $RBENV_VERSION`" else export CONFIGURE_OPTS="--disable-install-doc" #export MAKEOPTS="-j$(cat /proc/cpuinfo | grep ^processor | tail -n1 | awk \"{print $3 + 2}\")" rm -rf /tmp/ruby-build* rbenv install $RBENV_VERSION & while [ ! -d /root/.rbenv/versions/1.9.3-p125/lib/ruby/1.9.1 ]; do sleep 5 echo "Waiting for ruby-build to complete." done $HOME/.rbenv/bin/rbenv sh-shell $RBENV_VERSION fi if [ ! -f /usr/bin/chef-client ]; then rpm -qa epel-release | grep -q epel-release || { wget <%= "--proxy=on " if knife_config[:bootstrap_proxy] %> http://download.fedoraproject.org/pub/epel/5/i386/epel-release-5-4.noarch.rpm rpm -Uvh epel-release-5-4.noarch.rpm } [ -f /etc/yum.repos.d/aegis.rep ] || wget <%= "--proxy=on " if knife_config[:bootstrap_proxy] %>-O /etc/yum.repos.d/aegis.repo http://rpm.aegisco.com/aegisco/el5/aegisco.repo yum install -y gcc gcc-c++ automake autoconf make fi RBENV_BIN="$HOME/.rbenv/versions/$RBENV_VERSION/bin" GEM_OPTS="--no-rdoc --no-ri" gem update $GEM_OPTS --system gem update $GEM_OPTS [ -x $RBENV_BIN/ohai ] || gem install ohai $GEM_OPTS --verbose [ -x $RBENV_BIN/chef-client ] || gem install chef $GEM_OPTS --verbose <%= bootstrap_version_string %> mkdir -p /etc/chef for x in chef-client chef-solo knife ohai shef; do [ -h /usr/bin/${x} ] && rm -f /usr/bin/${x} ln -s $RBENV_BIN/${x} /usr/bin/${x} done ( cat <<'EOP' <%= validation_key %> EOP ) > /tmp/validation.pem awk NF /tmp/validation.pem > /etc/chef/validation.pem rm /tmp/validation.pem ( cat <<'EOP' <%= config_content %> EOP ) > /etc/chef/client.rb ( cat <<'EOP' <%= { "run_list" => @run_list }.to_json %> EOP ) > /etc/chef/first-boot.json <%= start_chef %>'