fix curl

Dockerfile

@@ -23,7 +23,8 @@ RUN ln -sf /usr/share/zoneinfo/UTC /etc/localtime \
     && echo "NETWORKING=yes" > /etc/sysconfig/network
 
 RUN rm -fr /var/cache/dnf/* && dnf clean all && dnf -y install --setopt=tsflags=nodocs epel-release && dnf -y update && \
-    dnf -y install net-tools wget curl tar unzip mlocate logrotate strace telnet man vim rsyslog httpd mod_ssl dos2unix cronie supervisor && \
+    dnf -y install net-tools wget tar unzip mlocate logrotate strace telnet man vim rsyslog httpd mod_ssl dos2unix cronie supervisor && \
+    dnf -y --allowerasing curl && \
     dnf clean all
 
 #install shibboleth, cleanup httpd