update exporter install proc to get latest code

wownero/dockerfiles/wownerod_exporter

@@ -1,10 +1,9 @@
-FROM ubuntu:22.04
+FROM golang:bullseye
 
-RUN apt-get update && apt-get install wget tar -y
+# Install exporter from Golang source
+RUN go install github.com/cirocosta/monero-exporter/cmd/monero-exporter@master
 
-RUN wget https://github.com/cirocosta/monero-exporter/releases/download/v0.0.2/monero-exporter_0.0.2_linux_amd64.tar.gz -O monero-exporter.tar.gz && \
-  tar xzvf monero-exporter.tar.gz && \
-  mv ./monero-exporter /usr/local/bin && \
-  chmod +x /usr/local/bin/monero-exporter
+# Install GeoLite database
+RUN wget https://github.com/P3TERX/GeoLite.mmdb/raw/download/GeoLite2-City.mmdb -O /geoip.mmdb
 
-ENTRYPOINT [ "/usr/local/bin/monero-exporter" ]
+ENTRYPOINT [ "monero-exporter", "--geoip-filepath", "/geoip.mmdb" ]