migrate to alpine image

scripts/start_proxy.sh

@@ -1,7 +1,6 @@
 cat /ssh/key.pub > /root/.ssh/authorized_keys
-echo 'HostKeyAlgorithms +ssh-rsa' >> /etc/ssh/sshd_config
-echo 'PubkeyAcceptedKeyTypes +ssh-rsa' >> /etc/ssh/sshd_config
-service ssh start
+ssh-keygen -A
+exec /usr/sbin/sshd -D -e "$@" &
 sed -n "s/\"server_port\": \([0-9]\+\),/\1/p" /config.json > current_port
 CURRENT_PORT=$(cat current_port | tr -d " ")
 if [ "$CURRENT_PORT" -ne "443" ]
@@ -9,5 +8,5 @@ then
     sed "s/\"server_port\": [0-9]\+/\"server_port\": $SSPORT/" /config.json > change_port
     cat change_port > /config.json
 fi
-/sslocal -v -d -c /config.json
+sslocal -v -d -c /config.json
 tail -f /dev/null