Create a prebuilt plugins Dockerfile (#17583)

* Create a pre-built plugins Dockerfile

* Add newline to Dockerfile

* Use one arg for bin/lib copy path

* Include comment for optional lib copying

Author: chainchad

.gitignore

@@ -109,3 +109,7 @@ vendor/*
 contracts/lcov.info
 contracts/out/
 /cache
+
+# Used by plugins/chianlink.prebuilt.Dockerfile
+bin/
+lib/

plugins/chainlink.prebuilt.Dockerfile

@@ -0,0 +1,18 @@
+##
+# Takes Chainlink core as a base image and layers in private plugins.
+##
+ARG BASE_IMAGE=public.ecr.aws/chainlink/chainlink:v2.23.0-plugins
+
+##
+# Final image
+##
+FROM ${BASE_IMAGE} AS final
+# This directory should contain a bin/ subdir with the plugins and an optional lib/ subdir with shared libraries.
+ARG PKG_PATH=./build
+
+# Copy/override any (optional) additional shared libraries.
+# Square brackets in "li[b]" make this path optional - Docker build won't fail
+# if the directory doesn't exist.
+COPY ${PKG_PATH}/li[b] /usr/lib/
+# Copy/override plugins.
+COPY ${PKG_PATH}/bin /usr/local/bin