Add configurable R version support

.env.sample

@@ -7,6 +7,10 @@ SECRET_ADMIN_PASSWORD_VERSION=v1
 
 DEFAULT_LOCALES="fr_FR fr_FR.UTF-8 en_GB en_GB.UTF-8 en_US en_US.UTF-8 nl_NL nl_NL.UTF-8"
 
+# Custom R version
+#COMPOSE_FILE="compose.yml:compose.version.yml"
+#R_VERSION=3.6.3
+
 # MSSQL driver
 COMPOSE_FILE="compose.yml:compose.mssql.yml"
 

compose.version.yml

@@ -0,0 +1,6 @@
+---
+version: "3.8"
+
+services:
+  app:
+    image: rocker/tidyverse:${R_VERSION}