Add support for annotations

Author: zanieb

README.md

@@ -122,6 +122,7 @@ The following inputs can be used as `step.with` keys and match the inputs from [
 | ------------------ | ----------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
 | `add-hosts`        | List/CSV    | List of [customs host-to-IP mapping](https://docs.docker.com/engine/reference/commandline/build/#add-entries-to-container-hosts-file---add-host) (e.g., `docker:10.180.0.1`)                                                 |
 | `allow`            | List/CSV    | List of [extra privileged entitlement](https://github.com/docker/buildx/blob/master/docs/reference/buildx_build.md#allow) (e.g., `network.host,security.insecure`)                                                           |
+| `annotations`      | List        | List of annotation to set to the image                                                                                                                                            |
 | `attests`          | List        | List of [attestation](https://docs.docker.com/build/attestations/) parameters (e.g., `type=sbom,generator=image`)                                                                                                            |
 | `build-args`       | List        | List of [build-time variables](https://github.com/docker/buildx/blob/master/docs/reference/buildx_build.md#build-arg)                                                                                                        |
 | `build-contexts`   | List        | List of additional [build contexts](https://github.com/docker/buildx/blob/master/docs/reference/buildx_build.md#build-context) (e.g., `name=path`)                                                                           |

action.yml

@@ -15,6 +15,9 @@ inputs:
   allow:
     description: 'List of extra privileged entitlement (e.g., network.host,security.insecure)'
     required: false
+  annotations:
+    description: 'List of annotation to set to the image'
+    required: false
   attests:
     description: 'List of attestation parameters (e.g., type=sbom,generator=image)'
     required: false

dist/index.js

@@ -9,6 +9,7 @@ import * as path from 'path'
 export interface Inputs {
   addHosts: string[]
   allow: string[]
+  annotations: string[]
   attests: string[]
   buildArgs: string[]
   buildContexts: string[]
@@ -52,6 +53,7 @@ export function getInputs(): Inputs {
   return {
     addHosts: getListInput('add-hosts'),
     allow: getListInput('allow'),
+    annotations: getListInput('annotations', {ignoreComma: true}),
     attests: getListInput('attests', {ignoreComma: true}),
     buildArgs: getListInput('build-args', {ignoreComma: true}),
     buildContexts: getListInput('build-contexts', {ignoreComma: true}),

src/context.ts

@@ -59,6 +59,7 @@ export async function build(inputs: Inputs) {
   const buildxArgs = [
     ...flag('--add-host', inputs.addHosts),
     ...flag('--allow', inputs.allow.join(',')),
+    ...flag('--annotation', inputs.annotations),
     ...flag('--attest', inputs.attests),
     ...flag('--build-arg', inputs.buildArgs),
     ...flag('--build-context', inputs.buildContexts),