Take the 2-minute tour ×
Server Fault is a question and answer site for professional system and network administrators. It's 100% free, no registration required.

I have a use case where most of my remote_file resources and yum resources download files directly from an internal server. However, there is a need to download one or two files with remote_file that is outside our firewall and which must go through a HTTP proxy. If I set the http_proxy setting in /etc/chef/client.rb, it adversely affects the recipe's ability to download yum and other files from internal resources. Is there a way to have a remote_file resource download a remote URL through a proxy without setting the http_proxy value in /etc/chef/client.rb?

In my sample code, below, I'm downloading a redmine bundle from rubyforge.org, which requires my servers to go through a corporate proxy. I came up with a ruby_block before and after the remote_file resource that sets the http_proxy and "unsets" it. I'm looking for a cleaner way to do this.

ruby_block "setenv-http_proxy" do
    block do
        Chef::Config.http_proxy = node['redmine']['http_proxy']
        ENV['http_proxy'] = node['redmine']['http_proxy']
        ENV['HTTP_PROXY'] = node['redmine']['http_proxy']
    end
    action node['redmine']['rubyforge_use_proxy'] ? :create : :nothing
    notifies :create_if_missing, "remote_file[redmine-bundle.zip]", :immediately
end

remote_file "redmine-bundle.zip" do
    path "#{Dir.tmpdir}/redmine-#{attrs['version']}-bundle.zip"
    source attrs['download_url']
    mode "0644"
    action :create_if_missing
    notifies :decompress, "zipp[redmine-bundle.zip]", :immediately
    notifies :create, "ruby_block[unsetenv-http_proxy]", :immediately
end

ruby_block "unsetenv-http_proxy" do
    block do
        Chef::Config.http_proxy = nil
        ENV['http_proxy'] = nil
        ENV['HTTP_PROXY'] = nil
    end
    action node['redmine']['rubyforge_use_proxy'] ? :create : :nothing
end
share|improve this question

2 Answers 2

You could try setting :http_proxy in the recipe immediately before the remote_file (and unset it afterward), like this:

save_http_proxy = Chef::Config[:http_proxy]
Chef::Config[:http_proxy] = "http://someproxyserver.com:8080"

remote_file "redmine-bundle.zip" do
    path "#{Dir.tmpdir}/redmine-#{attrs['version']}-bundle.zip"
    source attrs['download_url']
    mode "0644"
    action :create_if_missing
    notifies :decompress, "zipp[redmine-bundle.zip]", :immediately
    notifies :create, "ruby_block[unsetenv-http_proxy]", :immediately
end

Chef::Config[:http_proxy] = save_http_proxy
share|improve this answer

Set no_proxy in your client.rb like so...to exclude all your internal addresses from using proxy.

no_proxy "chef-server,*.my.dom,192.168.*,10.*"
share|improve this answer

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.