diff --git a/ci/Dockerfile-build.el5 b/ci/Dockerfile-build.el5
new file mode 100644
index 000000000..267d2c354
--- /dev/null
+++ b/ci/Dockerfile-build.el5
@@ -0,0 +1,36 @@
+ARG DOCKER_ARCH
+FROM --platform=linux/${DOCKER_ARCH} alpine:edge AS builder
+
+RUN apk update
+RUN apk add curl
+RUN apk add bash
+RUN apk add file
+RUN apk add rust
+RUN apk add cargo
+RUN apk add make
+RUN apk add cmake
+RUN apk add clang
+RUN apk add openssl-dev
+RUN apk add linux-headers
+RUN apk add build-base
+RUN apk add openssl-libs-static
+
+COPY . .
+RUN ZT_STATIC=1 make
+RUN ls -la
+
+ARG DOCKER_ARCH
+FROM --platform=linux/${DOCKER_ARCH} centos:5 AS stage
+WORKDIR /root/rpmbuild/BUILD
+COPY . .
+COPY --from=builder zerotier-* ./
+RUN printf "[C5.10-base]\nname=CentOS-5.10 - Base\nbaseurl=http://vault.epel.cloud/5.10/os/\$basearch/\ngpgcheck=1\ngpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6\nenabled=1\nmetadata_expire=never\n" > /etc/yum.repos.d/CentOS-Base.repo
+RUN uname -a
+RUN yum -y install make gcc rpm-build
+RUN pwd
+RUN ls -la
+RUN make redhat
+
+FROM scratch AS export
+ARG ZT_NAME
+COPY --from=stage /root/rpmbuild/RPMS/*/*.rpm ./${ZT_NAME}/
diff --git a/ci/Dockerfile-test.el5 b/ci/Dockerfile-test.el5
new file mode 100644
index 000000000..ff3de8cef
--- /dev/null
+++ b/ci/Dockerfile-test.el5
@@ -0,0 +1,4 @@
+ARG DOCKER_ARCH
+FROM --platform=linux/${DOCKER_ARCH} centos:5
+RUN printf "[C5.10-base]\nname=CentOS-5.10 - Base\nbaseurl=http://vault.epel.cloud/5.10/os/\$basearch/\ngpgcheck=1\ngpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6\nenabled=1\nmetadata_expire=never\n" > /etc/yum.repos.d/CentOS-Base.repo
+RUN yum -y install curl