update_interface_config
to prevent new interface is added when stop/start instance in EC2 classic or create imaage with existing interface
add_new_serial_if || log_failure_msg "can't add serial interfaces"
no serial interface in EC2
see attached file.
| #!/bin/sh | |
| # This script is called from /etc/rc.local on boot after the Vyatta | |
| # configuration is fully applied. Any modifications done to work around | |
| # unfixed bugs and implement enhancements which are not complete in the Vyatta | |
| # system can be placed here. | |
| # expand volume and enable swap if exists | |
| resize2fs /dev/xvda1 | |
| [ -f /dev/xvda3 ] && swapon /dev/xvda3 | |
| # run once per instance | |
| instanceId=$( curl -s http://169.254.169.254/latest/meta-data/instance-id ) | |
| [ -f /opt/vyatta/tmp/$instanceId ] && exit | |
| # apply config from user-data | |
| sudo -u vyos /usr/bin/expect << EOF | |
| set timeout 60 | |
| spawn \$env(SHELL) | |
| send "configure\r" | |
| expect -re ".*# $" | |
| send "merge http://169.254.169.254/latest/user-data \r" | |
| expect { | |
| "\[no\] " {send "Y\r"} | |
| timeout {send_user "Error: timeout\n"; exit} | |
| eof {send_user "Error: eof\n"; exit} | |
| } | |
| expect { | |
| "Merge complete." {send "commit\r"} | |
| timeout {send_user "Error: timeout\n"; exit} | |
| eof {send_user "Error: eof\n"; exit} | |
| } | |
| expect -re ".*# $" | |
| send "save\r" | |
| expect -re ".*# $" | |
| send "exit\r" | |
| expect { | |
| -re ":\[~/\]\[#$\] " {send "exit\r"} | |
| timeout {send_user "timeout @3\n"; exit} | |
| eof {send_user "eof @3\n"; exit} | |
| } | |
| EOF | |
| # import ssh key from meta-data server | |
| sudo -u vyos /usr/bin/expect << EOF | |
| set timeout 30 | |
| spawn \$env(SHELL) | |
| send "configure\r" | |
| expect -re ".*# $" | |
| send "loadkey vyos http://169.254.169.254/latest/meta-data/public-keys/0/openssh-key \r" | |
| expect { | |
| -re "### 100.0%.*# $" {send "set service ssh disable-password-authentication \r"} | |
| timeout {send_user "timeout @1\n"; exit} | |
| eof {send_user "eof @1\n"; exit} | |
| } | |
| expect -re ".*# $" | |
| send "commit\r" | |
| expect -re ".*# $" | |
| send "save\r" | |
| expect -re ".*# $" | |
| send "exit\r" | |
| expect { | |
| -re ":\[~/\]\[#$\] " {send "cat ~vyos/.ssh/authorized_keys\r"} | |
| timeout {send_user "timeout @2\n"; exit} | |
| eof {send_user "eof @2\n"; exit} | |
| } | |
| expect { | |
| -re ":\[~/\]\[#$\] " {send "exit\r"} | |
| timeout {send_user "timeout @3\n"; exit} | |
| eof {send_user "eof @3\n"; exit} | |
| } | |
| EOF | |
| touch /opt/vyatta/tmp/$instanceId |