Varnish container runs version 6.1.1.

container/Dockerfile.varnish

 FROM centos:centos7
-COPY varnishcache_varnish60.repo /etc/yum.repos.d/
+COPY varnishcache_varnish61.repo /etc/yum.repos.d/
 RUN yum install -y epel-release && yum update -y -q && \
-    yum -q makecache -y --disablerepo='*' --enablerepo='varnishcache_varnish60' && \
+    yum -q makecache -y --disablerepo='*' --enablerepo='varnishcache_varnish61' && \
     yum-config-manager --add-repo https://pkg.uplex.de/rpm/7/uplex-varnish/x86_64/ && \
-    yum install -y -q varnish-6.0.1 && \
-    yum install -y -q --nogpgcheck vmod-re2-1.5.1 && \
+    yum install -y -q varnish-6.1.1 && \
+    yum install -y -q --nogpgcheck vmod-re2 && \
     yum clean all && rm -rf /var/cache/yum
+RUN mkdir /var/run/varnish
 COPY bogo_backend.vcl /etc/varnish/
 COPY ready.vcl /etc/varnish/
 COPY notavailable.vcl /etc/varnish
 COPY boot.vcl /etc/varnish
 COPY start.cli /etc/varnish
-RUN mkdir /var/run/varnish
 ENTRYPOINT ["/usr/sbin/varnishd", "-F", "-a", ":80", "-a", "k8s=:8080", \
             "-S", "/var/run/varnish/_.secret", "-T", "0.0.0.0:6081", \
             "-p", "vcl_path=/etc/varnish", "-I", "/etc/varnish/start.cli", \

container/varnishcache_varnish60.repo → container/varnishcache_varnish61.repo

-[varnishcache_varnish60]
-name=varnishcache_varnish60
-baseurl=https://packagecloud.io/varnishcache/varnish60/el/7/$basearch
+[varnishcache_varnish61]
+name=varnishcache_varnish61
+baseurl=https://packagecloud.io/varnishcache/varnish61/el/7/$basearch
 repo_gpgcheck=1
 gpgcheck=0
 enabled=1
-gpgkey=https://packagecloud.io/varnishcache/varnish60/gpgkey
+gpgkey=https://packagecloud.io/varnishcache/varnish61/gpgkey
 sslverify=1
 sslcacert=/etc/pki/tls/certs/ca-bundle.crt
 metadata_expire=300
 
-[varnishcache_varnish60-source]
-name=varnishcache_varnish60-source
-baseurl=https://packagecloud.io/varnishcache/varnish60/el/7/SRPMS
+[varnishcache_varnish61-source]
+name=varnishcache_varnish61-source
+baseurl=https://packagecloud.io/varnishcache/varnish61/el/7/SRPMS
 repo_gpgcheck=1
 gpgcheck=0
 enabled=1
-gpgkey=https://packagecloud.io/varnishcache/varnish60/gpgkey
+gpgkey=https://packagecloud.io/varnishcache/varnish61/gpgkey
 sslverify=1
 sslcacert=/etc/pki/tls/certs/ca-bundle.crt
 metadata_expire=300