feat: support build-contexts for docker build

Author: gopkri24

container-scan/README.md

@@ -40,6 +40,7 @@ To use this action in your GitHub Actions workflow, include the following steps:
 | image-tag | Docker image tag | `true` |  |
 | image-platform | Target platform to build image for (eg. linux/amd64 (default), linux/arm64, etc) | `false` | linux/amd64 |
 | build-args | List of build arguments for docker build as key-value pairs (e.g., KEY=VALUE) | `false` |  |
+| build-contexts | List of additional build contexts (e.g., name=path) | `false` |  |
 | secrets | List of secrets for docker build as key-value pairs (e.g., SECRET_KEY=VALUE) | `false` |  |
 | enable-docker-build | Docker image tag | `false` | true |
 <!-- action-docs-inputs -->

container-scan/action.yaml

@@ -33,11 +33,14 @@ inputs:
     description: Target platform to build image for (eg. linux/amd64 (default), linux/arm64, etc)
     required: false
     default: linux/amd64
-
   build-args:
     required: false
     description: List of build arguments for docker build as key-value pairs (e.g., KEY=VALUE)
     default: ""
+  build-contexts:
+    required: false
+    description: List of additional build contexts (e.g., name=path)
+    default: ""
   secrets:
     required: false
     description: List of secrets for docker build as key-value pairs (e.g., SECRET_KEY=VALUE)
@@ -74,6 +77,7 @@ runs:
           type=ref,event=branch
           type=ref,event=pr
         build-args: ${{ inputs.build-args }}
+        build-contexts: ${{ inputs.build-contexts }}
         secrets: ${{ inputs.secrets }}
 
     - name: "Determining image name"

docker-build/README.md

@@ -51,9 +51,9 @@ steps:
         type=semver,pattern={{version}},value=${{ steps.release.outputs.new-release-version }}
 ```
 
-#### Dynamically input multiple build arguments and secrets:
+#### Dynamically input multiple build arguments, contexts and secrets:
 
-If you want to pass multiple build arguments and secrets, you can use the `build-args` and `secrets` input parameters.
+If you want to pass multiple build arguments and secrets, you can use the `build-args`, `build-contexts` and `secrets` input parameters.
 
 ```yaml
 steps:
@@ -74,6 +74,9 @@ steps:
       build-args: |
         KEY1=VALUE1
         KEY2=VALUE2
+    build-contexts: |
+        context1=PATH1
+        context2=PATH2
       secrets: |
         SECRET_KEY1=SECRET_VALUE1
         SECRET_KEY2=SECRET_VALUE2
@@ -98,6 +101,7 @@ steps:
 | push                 | Do you want to push the image to the registry                                                                    | `false`  | false               |
 | load                 | Do you want to load the single-platform build result to docker images                                            | `false`  | true                |
 | build-args           | List of build arguments as key-value pairs (e.g., KEY=VALUE)                                                     | `false`  |                     |
+| build-contexts       | List of additional build contexts (e.g., name=path)                                                              | `false`  |                     |
 | secrets              | List of secrets as key-value pairs (e.g., SECRET_KEY=VALUE)                                                      | `false`  |                     |
 
 ## Outputs

docker-build/action.yaml

@@ -37,6 +37,10 @@ inputs:
     required: false
     description: List of build arguments as key-value pairs (e.g., KEY=VALUE)
     default: ""
+  build-contexts:
+    required: false
+    description: List of additional build contexts (e.g., name=path)
+    default: ""
   secrets:
     required: false
     description: List of secrets as key-value pairs (e.g., SECRET_KEY=VALUE)
@@ -115,3 +119,5 @@ runs:
         labels: ${{ steps.meta.outputs.labels }}
         secrets: |
           ${{ inputs.secrets }}
+        build-contexts: |
+          ${{ inputs.build-contexts }}