Add cache_froms input to support --cache-from

Signed-off-by: Nick Adcock <nick.adcock@docker.com>
githraj · Apr 22, 2020 · abc498d · abc498d
1 parent e5e36c4
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diff --git a/README.md b/README.md
@@ -17,6 +17,7 @@ Suggestions and issues can be posted on the repositories [issues page](https://g
 * [target](#target)
 * [always_pull](#always_pull)
 * [build_args](#build_args)
+* [cache_froms](#cache_froms)
 * [labels](#labels)
 * [add_git_labels](#add_git_labels)
 * [push](#push)
@@ -114,6 +115,15 @@ Example:
 build_args: arg1=value1,arg2=value2
 ```
 
+### `cache_froms`
+
+Comma-delimited list of images to consider as cache sources.
+
+Example:
+```yaml
+cache_froms: myorg/baseimage:latest
+```
+
 ### `labels`
 
 Comma-delimited list of labels to add to the built image.

diff --git a/action.yml b/action.yml
@@ -50,6 +50,9 @@ inputs:
   build_args:
     description: Comma-delimited list of build-time variables
     required: false
+  cache_froms:
+    description: Comma-delimited list of images to consider as cache sources
+    required: false
   labels:
     description: Comma-delimited list of labels to add to the built image
     required: false