gitlab-org--gitlab-foss/app/controllers/health_controller.rb
Zeger-Jan van de Weg 65840591cd
Gitaly metrics check for read/writeability
Prior to this change, health checks checked for writeability of the NFS
shards. Given we're moving away from that, this patch extends the checks
for Gitaly to check for read and writeability.

Potentially some dashboards will break, as over time these metrics will
no longer appear as Prometheus doesn't get the data anymore.
Observability in the circuit breaker will be reduced, but its not
expected to be turned on and the circuit breaker is being removed soon
too.

Closes https://gitlab.com/gitlab-org/gitaly/issues/1218
2018-06-27 08:56:19 +02:00

55 lines
1.5 KiB
Ruby

class HealthController < ActionController::Base
protect_from_forgery with: :exception, except: :storage_check, prepend: true
include RequiresWhitelistedMonitoringClient
CHECKS = [
Gitlab::HealthChecks::DbCheck,
Gitlab::HealthChecks::Redis::RedisCheck,
Gitlab::HealthChecks::Redis::CacheCheck,
Gitlab::HealthChecks::Redis::QueuesCheck,
Gitlab::HealthChecks::Redis::SharedStateCheck,
Gitlab::HealthChecks::GitalyCheck
].freeze
def readiness
results = CHECKS.map { |check| [check.name, check.readiness] }
render_check_results(results)
end
def liveness
results = CHECKS.map { |check| [check.name, check.liveness] }
render_check_results(results)
end
def storage_check
results = Gitlab::Git::Storage::Checker.check_all
render json: {
check_interval: Gitlab::CurrentSettings.current_application_settings.circuitbreaker_check_interval,
results: results
}
end
private
def render_check_results(results)
flattened = results.flat_map do |name, result|
if result.is_a?(Gitlab::HealthChecks::Result)
[[name, result]]
else
result.map { |r| [name, r] }
end
end
success = flattened.all? { |name, r| r.success }
response = flattened.map do |name, r|
info = { status: r.success ? 'ok' : 'failed' }
info['message'] = r.message if r.message
info[:labels] = r.labels if r.labels
[name, info]
end
render json: response.to_h, status: success ? :ok : :service_unavailable
end
end