change Dockerfile

Dockerfile

@@ -1,8 +1,21 @@
 # syntax=docker/dockerfile:1
 FROM alpine
+
+# Install OpenSSH client
 RUN apk add --no-cache openssh-client
-RUN mkdir -p -m 0700 ~/.ssh && ssh-keyscan gitlab.com >> ~/.ssh/known_hosts
+
+# Configure SSH and add GitLab host key
+RUN mkdir -p -m 0700 ~/.ssh && \
+    ssh-keyscan git.ni.dfki.de >> ~/.ssh/known_hosts
+
+# Mount SSH key and run SSH connection test
 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`.
+    ssh -q -T git@git.ni.dfki.de:iml/cst/pam_al_ui.git 2>&1 | tee /hello
+
+# Activate SSH agent and add SSH key
+RUN eval $(ssh-agent) && \
+    ssh-add ~/.ssh/id_rsa
+
+# Build Docker image with SSH
+# Note: Replace "your_image_name" with your desired image name
+$ docker buildx build --ssh default=$SSH_AUTH_SOCK -t annotation_tool_image .