added docker dockercron image build environment

dockerfile

@@ -0,0 +1,18 @@
+# Copyright (c) 2023 · Bryan Joshua Pedini
+# LICENSE = gpl3
+# see the LICENSE file for more details
+
+ARG CRONVERSION
+ARG DISTRO
+FROM bryanpedini/cron:${CRONVERSION}-alpine${DISTRO}
+
+ARG VERSION
+LABEL maintainer="Bryan Joshua Pedini <b.pedini@bjphoster.com>"
+LABEL version="1.0"
+
+ARG COMPOSEVERSION
+RUN apk add docker && \
+    mkdir -p /usr/local/lib/docker/cli-plugins && \
+    wget -O /usr/local/lib/docker/cli-plugins/docker-compose \
+    https://github.com/docker/compose/releases/download/${COMPOSEVERSION}/docker-compose-linux-x86_64 && \
+    chmod +x /usr/local/lib/docker/cli-plugins/docker-compose