change Dockerfile

Dockerfile

@@ -1,10 +1,8 @@
-# Declare your environment variables with the ARG directive
-ARG GRADIO_ACOUSTIC
-
-# Use Python 3.10
-FROM python:3.10
-
-
-# Comment
-RUN echo 'we are running some # of cool things'
-
+# syntax=docker/dockerfile:1
+FROM alpine
+RUN apk add --no-cache openssh-client
+RUN mkdir -p -m 0700 ~/.ssh && ssh-keyscan gitlab.com >> ~/.ssh/known_hosts
+RUN --mount=type=ssh \
+  ssh -q -T git@gitlab.com 2>&1 | tee /hello
+# "Welcome to GitLab, @GITLAB_USERNAME_ASSOCIATED_WITH_SSHKEY" should be printed here
+# with the type of build progress is defined as `plain`.