[config and sonic-installer] Support bgp admin state preserving (soni…

…c-net#66)

* [sonic-installer] cp all config instead of only minigraph
* [config] Modify bgp admin state when calling config bgp

config/main.py

@@ -1,5 +1,6 @@
 #!/usr/sbin/env python
 
+import sys
 import os
 import click
 import json
@@ -118,7 +119,12 @@ def neighbor(ipaddr_or_hostname):
 
     command = "vtysh -c 'configure terminal' -c 'router bgp {}' -c 'neighbor {} shutdown'".format(bgp_asn, ipaddress)
     run_command(command)
-
+    # Remove existing item in bgp_admin.yml about the admin state of this neighbor
+    command = 'sed -i "/^\s*{}:/d" /etc/sonic/bgp_admin.yml'.format(ipaddress)
+    run_command(command)
+    # and add a new line mark it as off
+    command = 'echo "  {}: off" >> /etc/sonic/bgp_admin.yml'.format(ipaddress)
+    run_command(command)
 
 @bgp.group()
 def startup():
@@ -145,6 +151,12 @@ def neighbor(ipaddr_or_hostname):
 
     command = "vtysh -c 'configure terminal' -c 'router bgp {}' -c 'no neighbor {} shutdown'".format(bgp_asn, ipaddress)
     run_command(command)
+    # Remove existing item in bgp_admin.yml about the admin state of this neighbor
+    command = 'sed -i "/^\s*{}:/d" /etc/sonic/bgp_admin.yml'.format(ipaddress)
+    run_command(command)
+    # and add a new line mark it as on
+    command = 'echo "  {}: on" >> /etc/sonic/bgp_admin.yml'.format(ipaddress)
+    run_command(command)
 
 
 if __name__ == '__main__':

sonic_installer/main.py

@@ -154,7 +154,7 @@ def install(url):
     else:
         os.chmod(image_path, stat.S_IXUSR)
         run_command(image_path)
-        run_command("cp /etc/sonic/minigraph.xml /host/")
+        run_command("cp -r /etc/sonic /host/old_config")
         run_command('grub-set-default --boot-directory=' + HOST_PATH + ' 0')
     click.echo('Done')