Merge pull request #18 from crazy-max/add-context-input

Add context input (#16)

.github/workflows/ci.yml

@@ -143,6 +143,39 @@ jobs:
           docker buildx inspect | grep Driver | grep docker
           docker buildx inspect | grep Status | grep running
 
+  endpoint:
+    runs-on: ubuntu-latest
+    services:
+      dind:
+        image: docker:dind
+        options: >-
+          --privileged
+          --health-cmd "docker info"
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 5
+        env:
+          DOCKER_TLS_CERTDIR: ""
+        ports:
+          - 2375:2375
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v2.3.2
+      -
+        name: Create context
+        run: |
+          docker context create mycontext --docker host=tcp://127.0.0.1:2375
+      -
+        name: Check context
+        run: |
+          docker --context mycontext info
+      -
+        name: Set up Docker Buildx
+        uses: ./
+        with:
+          endpoint: mycontext
+
   with-qemu:
     runs-on: ubuntu-latest
     strategy:

README.md

@@ -128,12 +128,13 @@ Following inputs can be used as `step.with` keys
 
 | Name               | Type    | Description                       |
 |--------------------|---------|-----------------------------------|
-| `version`          | String  | [Buildx](https://github.com/docker/buildx) version. (e.g. `v0.3.0`, `latest`) |
+| `version`          | String  | [Buildx](https://github.com/docker/buildx) version. (eg. `v0.3.0`, `latest`) |
 | `driver`           | String  | Sets the [builder driver](https://github.com/docker/buildx#--driver-driver) to be used (default `docker-container`) |
-| `driver-opts`      | CSV     | List of additional [driver-specific options](https://github.com/docker/buildx#--driver-opt-options) |
+| `driver-opts`      | CSV     | List of additional [driver-specific options](https://github.com/docker/buildx#--driver-opt-options) (eg. `image=moby/buildkit:master`) |
 | `buildkitd-flags`  | String  | [Flags for buildkitd](https://github.com/moby/buildkit/blob/master/docs/buildkitd.toml.md) daemon (since [buildx v0.3.0](https://github.com/docker/buildx/releases/tag/v0.3.0)) |
 | `install`          | Bool    | Sets up `docker build` command as an alias to `docker buildx` (default `false`) |
 | `use`              | Bool    | Switch to this builder instance (default `true`) |
+| `endpoint`         | String  | [Optional address for docker socket](https://github.com/docker/buildx#buildx-create-options-contextendpoint) or context from `docker context ls` |
 
 > `CSV` type must be a newline-delimited string
 > ```yaml

action.yml

@@ -8,14 +8,14 @@ branding:
 
 inputs:
   version:
-    description: 'Buildx version. e.g. v0.3.0'
+    description: 'Buildx version. (eg. v0.3.0)'
     required: false
   driver:
     description: 'Sets the builder driver to be used'
     default: 'docker-container'
     required: false
   driver-opts:
-    description: 'List of additional driver-specific options. Eg. image=moby/buildkit:master'
+    description: 'List of additional driver-specific options. (eg. image=moby/buildkit:master)'
     required: false
   buildkitd-flags:
     description: 'Flags for buildkitd daemon'
@@ -29,6 +29,9 @@ inputs:
     description: 'Switch to this builder instance'
     default: 'true'
     required: false
+  endpoint:
+    description: 'Optional address for docker socket or context from `docker context ls`'
+    required: false
 
 outputs:
   name:

src/context.ts

@@ -11,6 +11,7 @@ export interface Inputs {
   buildkitdFlags: string;
   install: boolean;
   use: boolean;
+  endpoint: string;
 }
 
 export async function getInputs(): Promise<Inputs> {
@@ -22,7 +23,8 @@ export async function getInputs(): Promise<Inputs> {
       core.getInput('buildkitd-flags') ||
       '--allow-insecure-entitlement security.insecure --allow-insecure-entitlement network.host',
     install: /true/i.test(core.getInput('install')),
-    use: /true/i.test(core.getInput('use'))
+    use: /true/i.test(core.getInput('use')),
+    endpoint: core.getInput('endpoint')
   };
 }
 

src/main.ts

@@ -42,6 +42,9 @@ async function run(): Promise<void> {
       if (inputs.use) {
         createArgs.push('--use');
       }
+      if (inputs.endpoint) {
+        createArgs.push(inputs.endpoint);
+      }
       await exec.exec('docker', createArgs);
 
       core.info('🏃 Booting builder...');