add runtime-basedir input

Signed-off-by: CrazyMax <1951866+crazy-max@users.noreply.github.com>

Author: ArunKumarT1995

README.md

@@ -121,8 +121,8 @@ The following inputs can be used as `step.with` keys
 | `tcp-port`      | Number |                       | TCP port to expose the Docker API locally                                                                                   |
 | `context`       | String | `setup-docker-action` | Docker context name.                                                                                                        |
 | `set-host`      | Bool   | `false`               | Set `DOCKER_HOST` environment variable to docker socket path.                                                               |
-| `rootless`      | Bool   | `false`               | Start daemon in rootless mode                                                                                               |
-
+| `rootless`      | Bool   | `false`               | Start daemon in rootless mode                                                                                              |
+| `runtime-basedir`      | String   | `<home>/setup-docker-action`               | Docker runtime base directory   
 ### inputs.version
 
 By default, the latest stable version of Docker is fetched from download.docker.com.

action.yml

@@ -31,6 +31,9 @@ inputs:
     description: 'Enable Docker rootless mode'
     default: 'false'
     required: false
+  runtime-basedir:
+    description: 'Docker runtime base directory'
+    required: false
 
 outputs:
   sock:

src/context.ts

@@ -11,6 +11,7 @@ export interface Inputs {
   context: string;
   setHost: boolean;
   rootless: boolean;
+  runtimeBasedir?: string;
 }
 
 export function getInputs(): Inputs {
@@ -27,7 +28,8 @@ export function getInputs(): Inputs {
     tcpPort: Util.getInputNumber('tcp-port'),
     context: core.getInput('context'),
     setHost: core.getBooleanInput('set-host'),
-    rootless: core.getBooleanInput('rootless')
+    rootless: core.getBooleanInput('rootless'),
+    runtimeBasedir: core.getInput('runtime-basedir')
   };
 }
 

src/main.ts

@@ -18,7 +18,8 @@ actionsToolkit.run(
   // main
   async () => {
     const input: context.Inputs = context.getInputs();
-    const runDir = path.join(os.homedir(), `setup-docker-action-${crypto.randomUUID().slice(0, 8)}`);
+    const runBasedir = input.runtimeBasedir || path.join(os.homedir(), `setup-docker-action`);
+    const runDir = path.join(runBasedir, `run-${crypto.randomUUID().slice(0, 8)}`);
 
     if (input.context == 'default') {
       throw new Error(`'default' context cannot be used.`);