Update Dockerfile. (#138)

Signed-off-by: Ismo Puustinen <[email protected]>

Author: ipuustin

build/Dockerfile.runner

@@ -1,5 +1,5 @@
 # Creates final auth-server container image from an already built binary
-FROM ubuntu:19.10
+FROM ubuntu:20.10
 RUN groupadd -r auth-server-grp && useradd -m -g auth-server-grp auth-server-usr
 
 # Install dependencies
@@ -14,4 +14,5 @@ RUN chgrp auth-server-grp /app/* && chown auth-server-usr /app/* && chmod u+x /a
 
 USER auth-server-usr
 WORKDIR /app
-ENTRYPOINT ["GRPC_VERBOSITY=debug", "/app/auth_server"]
+ENV GRPC_VERBOSITY=debug
+ENTRYPOINT ["/app/auth_server"]