Add build args (#16)

* Added build args
* Update README.md and docs (#17)

Co-authored-by: goruha <[email protected]>
Co-authored-by: Cloud Posse Bot (CI/CD) <[email protected]>
Co-authored-by: goruha <[email protected]>

Author: goruha

.github/workflows/test-docker-build-complex.yml

@@ -31,6 +31,9 @@ jobs:
           registry: registry.hub.docker.com
           login: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_PASSWORD }}
+          build-args: |
+            TEST_ARG=test_value
+            SECOND_ARG=two
 
       - uses: nick-fields/assert-action@v1
         with:

README.md

@@ -106,6 +106,7 @@ Build Docker image and push it.
 
 | Name | Description | Default | Required |
 |------|-------------|---------|----------|
+| build-args | List of build-time variables | N/A | false |
 | file | Dockerfile name | Dockerfile | false |
 | login | Docker login |  | false |
 | organization | Organization | N/A | true |

action.yml

@@ -13,6 +13,9 @@ inputs:
     description: 'Dockerfile name'
     required: false
     default: 'Dockerfile'
+  build-args:
+    description: "List of build-time variables"
+    required: false
   organization:
     description: 'Organization'
     required: true
@@ -72,6 +75,7 @@ runs:
         file: ${{ inputs.workdir }}/${{ inputs.file }}
         pull: true
         push: true
+        build-args: ${{ inputs.build-args }}
         cache-from: type=gha
         cache-to: type=gha,mode=max
         tags: ${{ inputs.registry }}/${{ inputs.organization }}/${{ inputs.repository }}:${{ steps.context.outputs.tag }}

docs/github-action.md

@@ -3,6 +3,7 @@
 
 | Name | Description | Default | Required |
 |------|-------------|---------|----------|
+| build-args | List of build-time variables | N/A | false |
 | file | Dockerfile name | Dockerfile | false |
 | login | Docker login |  | false |
 | organization | Organization | N/A | true |

test/custom/Dockerfile_complex

@@ -1 +1,8 @@
-FROM nginx:1.23.0-alpine
+FROM nginx:1.23.0-alpine
+
+ARG TEST_ARG
+RUN test "test_value" = "$TEST_ARG"
+
+ARG SECOND_ARG
+RUN test "two" = "$SECOND_ARG"
+