44 lines
1.7 KiB
Ruby
44 lines
1.7 KiB
Ruby
# frozen_string_literal: true
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root_dir = File.expand_path '../..', __dir__
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workers_count = ENV.fetch('RAILS_WEB_CONCURRENCY') { 1 }
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max_threads_count = ENV.fetch('RAILS_MAX_THREADS') { 5 }
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min_threads_count = ENV.fetch('RAILS_MIN_THREADS') { max_threads_count }
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port_number = ENV.fetch('PORT') { 3000 }
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# Specifies the number of `workers` to boot in clustered mode.
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# Workers are forked webserver processes. If using threads and workers together
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# the concurrency of the application would be max `threads` * `workers`.
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# Workers do not work on JRuby or Windows (both of which do not support
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# processes).
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#
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workers workers_count
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# Puma can serve each request in a thread from an internal thread pool.
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# The `threads` method setting takes two numbers: a minimum and maximum.
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# Any libraries that use thread pools should be configured to match
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# the maximum value specified for Puma. Default is set to 5 threads for minimum
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# and maximum; this matches the default thread size of Active Record.
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#
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threads min_threads_count, max_threads_count
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# Use the `preload_app!` method when specifying a `workers` number.
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# This directive tells Puma to first boot the application and load code
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# before forking the application. This takes advantage of Copy On Write
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# process behavior so workers use less memory.
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#
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# preload_app!
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# Specifies the `port` that Puma will listen on to receive requests;
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# default is 3000.
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#
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port port_number
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# Allow puma to be restarted by `rails restart` command.
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plugin :tmp_restart
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# Use "path" as the file to store the server info state. This is
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# used by "pumactl" to query and control the server.
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#
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state_path File.join(root_dir, 'tmp', 'pids', 'puma.state')
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