Allow key generation to suceed even if container doesn't have internet connectivity.

Dockerfile

@@ -9,6 +9,7 @@ FROM debian:latest
 
 COPY entrypoint.sh /entrypoint.sh
 RUN chmod +x /entrypoint.sh
+RUN apt-get update && apt-get install openssh-client -y && apt-get clean
 
 COPY --from=0 /ssh-chat/ssh-chat /ssh-chat
 

entrypoint.sh

@@ -4,7 +4,6 @@ if [ -f ssh_key ]; then
 	/ssh-chat -i /ssh_key $@
 else
 	echo "SSH Key not found at /ssh_key. Generating..."
-	apt-get update > /dev/null && apt-get install openssh-client -y > /dev/null 2>&1
 	ssh-keygen -t rsa -b 4096 -f /ssh_key -q -N ''
 	/ssh-chat -i /ssh_key $@
 fi