pille <[email protected]> wrote:
> hi,
>
> is it possible to add static and dynamic HTTP response headers in
> unicorn.conf.rb?
No, but it is easily possible with a Rack config.ru
> i'd like to add the hostname of the worker for debugging and a
> timestamp, when the request was worked on.
>
> currently this is done in nginx, which should be stripped from the stack.
> i'd like to keep it out of the webapp itself, because it's infrastructure.
Can you consider config.ru infrastructure? unicorn tries to do as
much generically via Rack as possible.
The following (totally untested) middleware should work:
------------------------8<------------------------
require 'time'
require 'socket'
require 'rack/utils'
# Usage (in config.ru)
# require 'name/of/this/file'
# use ExtraHeaders
# # other middlewares ...
# run YourApp.new
class ExtraHeaders
def initialize(app)
@app = app
end
def call(env)
start = Time.now.httpdate
status, headers, body = @app.call(env)
headers = Rack::Utils::HeaderHash.new(headers)
headers["X-Hostname"] = Socket.gethostname
headers["X-Start"] = start
[ status, headers, body ]
end
end
------------------------8<------------------------
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