gitlab-org--gitlab-foss/lib/gitlab/storage_check/option_parser.rb
Bob Van Landuyt f1ae1e39ce Move the circuitbreaker check out in a separate process
Moving the check out of the general requests, makes sure we don't have
any slowdown in the regular requests.

To keep the process performing this checks small, the check is still
performed inside a unicorn. But that is called from a process running
on the same server.

Because the checks are now done outside normal request, we can have a
simpler failure strategy:

The check is now performed in the background every
`circuitbreaker_check_interval`. Failures are logged in redis. The
failures are reset when the check succeeds. Per check we will try
`circuitbreaker_access_retries` times within
`circuitbreaker_storage_timeout` seconds.

When the number of failures exceeds
`circuitbreaker_failure_count_threshold`, we will block access to the
storage.

After `failure_reset_time` of no checks, we will clear the stored
failures. This could happen when the process that performs the checks
is not running.
2017-12-08 09:11:39 +01:00

39 lines
1.3 KiB
Ruby

module Gitlab
module StorageCheck
class OptionParser
def self.parse!(args)
# Start out with some defaults
options = Gitlab::StorageCheck::Options.new(nil, nil, 1, false)
parser = ::OptionParser.new do |opts|
opts.banner = "Usage: bin/storage_check [options]"
opts.on('-t=string', '--target string', 'URL or socket to trigger storage check') do |value|
options.target = value
end
opts.on('-T=string', '--token string', 'Health token to use') { |value| options.token = value }
opts.on('-i=n', '--interval n', ::OptionParser::DecimalInteger, 'Seconds between checks') do |value|
options.interval = value
end
opts.on('-d', '--dryrun', "Output what will be performed, but don't start the process") do |value|
options.dryrun = value
end
end
parser.parse!(args)
unless options.target
raise ::OptionParser::InvalidArgument.new('Provide a URI to provide checks')
end
if URI.parse(options.target).scheme.nil?
raise ::OptionParser::InvalidArgument.new('Add the scheme to the target, `unix://`, `https://` or `http://` are supported')
end
options
end
end
end
end