Customizable docker tty

README.md

@@ -14,6 +14,7 @@ GitHub Action to run Renovate self-hosted.
   - [`docker-cmd-file`](#docker-cmd-file)
   - [`docker-network`](#docker-network)
   - [`docker-socket-host-path`](#docker-socket-host-path)
+  - [`docker-tty`](#docker-tty)
   - [`docker-user`](#docker-user)
   - [`docker-volumes`](#docker-volumes)
   - [`env-regex`](#env-regex)
@@ -120,6 +121,11 @@ Allows the overriding of the host path for the Docker socket that is mounted int
 Useful on systems where the host Docker socket is located somewhere other than `/var/run/docker.sock` (the default).
 Only applicable when `mount-docker-socket` is true.
 
+### `docker-tty`
+
+Defaults to `true`. When enabled, Docker commands are run with `-t` (allocate pseudo-TTY).
+Set to `false` to disable TTY allocation.
+
 ### `docker-user`
 
 Specify a user (or user-id) to run docker command.

action.yml

@@ -61,6 +61,12 @@ inputs:
       Docker volume mounts. Default to /tmp:/tmp
     default: /tmp:/tmp
     required: false
+  docker-tty:
+    description: |
+      Allocate a pseudo-TTY (`-t`) for Docker runs.
+      Set to `false` to disable TTY allocation.
+    default: 'true'
+    required: false
 
 runs:
   using: node24

src/input.ts

@@ -96,6 +96,10 @@ export class Input {
     return getInput('docker-network');
   }
 
+  dockerTty(): boolean {
+    return getInput('docker-tty') !== 'false';
+  }
+
   /**
    * Convert to environment variables.
    *

src/renovate.ts

@@ -15,7 +15,8 @@ export class Renovate {
   }
 
   async runDockerContainerForVersion(): Promise<string> {
-    const command = `docker run -t --rm ${this.docker.image()} --version`;
+    const ttyArgument = this.input.dockerTty() ? '-t ' : '';
+    const command = `docker run ${ttyArgument}--rm ${this.docker.image()} --version`;
 
     const { exitCode, stdout } = await getExecOutput(command);
     if (exitCode !== 0) {
@@ -87,7 +88,8 @@ export class Renovate {
       dockerArguments.push(dockerCmd);
     }
 
-    const command = `docker run -t ${dockerArguments.join(' ')}`;
+    const ttyArgument = this.input.dockerTty() ? '-t ' : '';
+    const command = `docker run ${ttyArgument}${dockerArguments.join(' ')}`;
 
     const code = await exec(command);
     if (code !== 0) {