Fix base image pinning from Concourse resources

bgandon · bgandon · commit 315474fba62f · 2024-05-11T17:21:50.000+02:00
... properly using build args as advised in the docs! &gt;_&lt;
diff --git a/Dockerfile b/Dockerfile
@@ -1,4 +1,6 @@
-FROM alpine
+ARG alpine
+
+FROM ${alpine} AS resource
 
 RUN apk add --no-cache curl bash jq coreutils
 
