diff --git a/.gitlab/cloud-init.sh b/.gitlab/cloud-init.sh
new file mode 100755
index 000000000..3ef2133ff
--- /dev/null
+++ b/.gitlab/cloud-init.sh
@@ -0,0 +1,24 @@
+#!/bin/bash -ex
+# generate log 
+exec > >(tee /var/log/user-data.log|logger -t user-data -s 2>/dev/console) 2>&1
+
+# Install packages 
+yum update -y
+yum install golang -y # latest verion in ec2 is 1.15.14 
+yum install postgresql -y
+
+# Configure host system  
+# N=200000
+# sysctl -w vm.max_map_count=N
+# echo N > /proc/sys/vm/max_map_count
+ulimit -n -S 200000
+
+# # install go 1.16.9
+# curl -O https://dl.google.com/go/go1.16.9.linux-amd64.tar.gz
+# tar xvf go1.16.9.linux-amd64.tar.gz
+# chown -R root:root ./go
+# mv go /usr/local
+# echo 'export GOPATH=$HOME/work' >> ~/.profile
+# echo 'export PATH=$PATH:/usr/local/go/bin:$GOPATH/bin' >> ~/.profile
+# chown ec2-user ~/.profile
+# source ~/.profile
diff --git a/.gitlab/server.yml b/.gitlab/server.yml
deleted file mode 100755
index 3fe5243ff..000000000
--- a/.gitlab/server.yml
+++ /dev/null
@@ -1,8 +0,0 @@
-#cloud-config
-repo_update: true
-repo_upgrade: all
-
-runcmd:
-  - yum update 
-  - yum install postgresql
-  - yum install golang
\ No newline at end of file