fix: for missing KRB5_KDC_PROFILE in environment.

Dockerfile

@@ -8,6 +8,8 @@ RUN apt-get update && \
         tini && \
     rm -rf /var/lib/apt/lists/*
 
+ENV KRB5_KDC_PROFILE=/var/lib/krb5kdc/kdc.conf
+
 COPY entrypoint.sh /entrypoint
 
 RUN chmod +x /entrypoint