Refine properties for non-root

Issue-ID: AAF-698
Change-Id: I266f0e36842fb506dbb3e412e12eedf64e24418a
Signed-off-by: Instrumental <jonathan.gathman@att.com>
diff --git a/auth/docker/Dockerfile.base b/auth/docker/Dockerfile.base
index 1d74362..879c319 100644
--- a/auth/docker/Dockerfile.base
+++ b/auth/docker/Dockerfile.base
@@ -23,5 +23,5 @@
 LABEL description="aaf_base"
 RUN apk add --no-cache bash
 RUN apk add --no-cache openssl
-RUN addgroup aaf && adduser aaf -G aaf -D -s /bin/bash
+RUN addgroup ${USER} && adduser ${USER} -G ${USER} -D -s /bin/bash