syncup dockerfile with original + set OTEL_EXPORTER_OTLP_ENDPOINT for…

… istio case

Dockerfile

@@ -4,13 +4,21 @@ RUN apk update && apk add ca-certificates
 FROM scratch
 COPY fortiotel /usr/bin/fortio
 COPY --from=certs /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
-ENTRYPOINT ["/usr/bin/fortio"]
+# TODO: Prom metrics exports/scrape
+# EXPOSE 9102
+# ENV OTEL_SERVICE_NAME "fortio"
+# Assumes you added --collector.otlp.enabled=true to your Jaeger deployment
+ENV OTEL_EXPORTER_OTLP_ENDPOINT http://jaeger-collector.istio-system.svc.cluster.local:4317
+# Same as original fortio/fortio Dockerfile
+EXPOSE 8078
+EXPOSE 8079
 EXPOSE 8080
-# Prom metrics exports/scrape
-EXPOSE 9102
+EXPOSE 8081
 # configmap (dynamic flags)
-VOLUME /etc/fortio-config
-# logs etc
-WORKDIR /var/log/fortio
-# start the fortiotel with default; the routes and cert by default
-CMD ["-config", "/etc/fortio-config"]
+VOLUME /etc/fortio
+# data files etc
+VOLUME /var/lib/fortio
+WORKDIR /var/lib/fortio
+ENTRYPOINT ["/usr/bin/fortio"]
+# start the server mode (grpc ping on 8079, http echo and UI on 8080, redirector on 8081) by default
+CMD ["server", "-config", "/etc/fortio"]