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# frozen_string_literal: true
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require 'redis'
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module SystemCheck
module App
class RedisVersionCheck < SystemCheck :: BaseCheck
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MIN_REDIS_VERSION = '4.0.0'
RECOMMENDED_REDIS_VERSION = '4.0.0' # In future we may deprecate but still support Redis 4
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set_name " Redis version >= #{ RECOMMENDED_REDIS_VERSION } ? "
@custom_error_message = ''
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def check?
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redis_version = Gitlab :: Redis :: Queues . with do | redis |
redis . info [ 'redis_version' ]
end
status = true
if ! redis_version
@custom_error_message = " Could not retrieve the Redis version. Please check if your settings are correct "
status = false
elsif Gem :: Version . new ( redis_version ) < Gem :: Version . new ( MIN_REDIS_VERSION )
@custom_error_message = " Your Redis version #{ redis_version } is not supported anymore. Update your Redis server to a version >= #{ RECOMMENDED_REDIS_VERSION } "
status = false
elsif Gem :: Version . new ( redis_version ) < Gem :: Version . new ( RECOMMENDED_REDIS_VERSION )
@custom_error_message = " Support for your Redis version #{ redis_version } has been deprecated and will be removed soon. Update your Redis server to a version >= #{ RECOMMENDED_REDIS_VERSION } "
status = false
end
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status
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end
def show_error
try_fixing_it (
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@custom_error_message
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)
for_more_information (
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'doc/administration/high_availability/redis.md#provide-your-own-redis-instance'
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)
fix_and_rerun
end
end
end
end