Imports github.com/gorilla/mux github.com/heptiolabs/healthcheck github.com/justinas/alice github.com/prometheus/client_golang/prometheus github.com/prometheus/client_golang/prometheus/promhttp github.com/rs/zerolog github.com/rs/zerolog/hlog github.com/rs/zerolog/log Standard library imports context flag fmt net/http os os/signal syscall time