diff --git a/.Rbuildignore b/.Rbuildignore
index c8260e7..8c53fe2 100644
--- a/.Rbuildignore
+++ b/.Rbuildignore
@@ -15,3 +15,4 @@
 ^RELEASE\.R$
 ^\.gitpod\.yml$
 ^\.gitpod\.Dockerfile$
+^\.testing\.Dockerfile$
diff --git a/.testing.Dockerfile b/.testing.Dockerfile
new file mode 100644
index 0000000..fdc230e
--- /dev/null
+++ b/.testing.Dockerfile
@@ -0,0 +1,12 @@
+# 
+ARG R_VER=${R_VER:-rocker/r-base}
+FROM ${R_VER}
+RUN apt update -y && apt upgrade -y && apt install -y pandoc
+RUN install.r yaml jsonlite
+COPY . ./rconfig
+RUN R CMD build rconfig
+# RUN R CMD check --as-cran rconfig_*.tar.gz
+
+# docker build --build-arg R_VER=rocker/r-base -t crancheck -f .testing.Dockerfile --progress=plain .
+# docker run -it --rm crancheck bash
+# R CMD check --as-cran --no-manual rconfig_*.tar.gz