Dockerfile: allow specifying build's Erlang version via ARG parameter.

TI-Tokyo · Oct 13, 2023 · 5e42ff7 · 5e42ff7
1 parent eb1e791
commit 5e42ff7
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/Dockerfile b/Dockerfile
@@ -1,4 +1,8 @@
-FROM erlang:25 AS compile-image
+# To override the default Erlang version used in the build, use:
+# $ docker build --build-arg erlang_version=22 ...
+
+ARG erlang_version="25"
+FROM erlang:${erlang_version} AS compile-image
 
 EXPOSE 8080 8085