move to UBI micro image (#2684)

Co-authored-by: Prakash Senthil Vel <23444145+prakashsvmx@users.noreply.github.com>
Co-authored-by: Alex <33497058+bexsoft@users.noreply.github.com>

Author: 3 people

Dockerfile.release

@@ -1,9 +1,17 @@
-FROM registry.access.redhat.com/ubi8/ubi-minimal:8.7
+FROM --platform=linux/amd64 registry.access.redhat.com/ubi8/ubi-minimal:8.7 as build
 
-ARG TAG
+RUN microdnf update --nodocs && microdnf install ca-certificates --nodocs
+RUN  curl -s -q https://raw.githubusercontent.com/minio/kes/master/LICENSE -o LICENSE
+RUN  curl -s -q https://raw.githubusercontent.com/minio/kes/master/CREDITS -o CREDITS
 
-COPY CREDITS /licenses/CREDITS
-COPY LICENSE /licenses/LICENSE
+FROM registry.access.redhat.com/ubi8/ubi-micro:8.7
+
+# On RHEL the certificate bundle is located at:
+# - /etc/pki/tls/certs/ca-bundle.crt (RHEL 6)
+# - /etc/pki/ca-trust/extracted/pem/tls-ca-bundle.pem (RHEL 7)
+COPY --from=build /etc/pki/ca-trust/extracted/pem/tls-ca-bundle.pem /etc/pki/ca-trust/extracted/pem/
+COPY --from=build LICENSE /LICENSE
+COPY --from=build CREDITS /CREDITS
 
 LABEL name="MinIO" \
       vendor="MinIO Inc <dev@min.io>" \
@@ -13,10 +21,6 @@ LABEL name="MinIO" \
       summary="A graphical user interface for MinIO" \
       description="MinIO object storage is fundamentally different. Designed for performance and the S3 API, it is 100% open-source. MinIO is ideal for large, private cloud environments with stringent security requirements and delivers mission-critical availability across a diverse range of workloads."
 
-RUN \
-     microdnf update --nodocs && \
-     microdnf install ca-certificates --nodocs
-
 EXPOSE 9090
 COPY console /console