docker health check

Dockerfile

@@ -5,6 +5,7 @@ LABEL com.bitwarden.product="bitwarden"
 RUN apt-get update \
     && apt-get install -y --no-install-recommends \
         gosu \
+        curl \
 && rm -rf /var/lib/apt/lists/*
 
 ENV ASPNETCORE_URLS http://+:5000
@@ -14,4 +15,6 @@ COPY ./build .
 COPY entrypoint.sh /
 RUN chmod +x /entrypoint.sh
 
+HEALTHCHECK CMD curl -f http://localhost:5000 || exit 1
+
 ENTRYPOINT ["/entrypoint.sh"]