diff --git a/docker/cmsweb-alma9-base/Dockerfile b/docker/cmsweb-alma9-base/Dockerfile
new file mode 100644
index 000000000..269e7f0ea
--- /dev/null
+++ b/docker/cmsweb-alma9-base/Dockerfile
@@ -0,0 +1,23 @@
+FROM cern/alma9-base:latest
+LABEL author="Dennis Lee dylee@fnal.gov"
+
+# Install EPEL repository (required for voms, fetch-crl and CA-related packages)
+RUN dnf -y install epel-release && dnf -y upgrade && \
+    dnf install -y http://linuxsoft.cern.ch/wlcg/el9/x86_64/wlcg-repo-1.0.0-1.el9.noarch.rpm && \
+    dnf clean all
+
+ADD http://repository.egi.eu/sw/production/cas/1/current/repo-files/egi-trustanchors.repo /etc/yum.repos.d/egi.repo
+
+# Upgrade packages  from the base image and install CMSWEB required packages
+RUN dnf -y install fetch-crl cronie cern-get-certificate CERN-CA-certs ca-certificates \
+    dummy-ca-certs ca-policy-lcg ca-policy-egi-core \
+    ca_CERN-GridCA ca_CERN-Root-2 \
+    wlcg-voms-cms && \
+    dnf clean all && \
+    echo "32 */6 * * * root ! /usr/sbin/fetch-crl -q -r 360" > /etc/cron.d/fetch-crl-docker
+
+# Required OS packages
+RUN dnf -y install vim less procps python3-pycurl pip && dnf clean all
+RUN ln -s /usr/bin/python3 /usr/bin/python
+
+RUN update-ca-trust