diff options
| -rwxr-xr-x | foreman/ci/deploy.sh | 28 |
1 files changed, 24 insertions, 4 deletions
diff --git a/foreman/ci/deploy.sh b/foreman/ci/deploy.sh index 2ccb64b..edad2a4 100755 --- a/foreman/ci/deploy.sh +++ b/foreman/ci/deploy.sh @@ -41,6 +41,7 @@ display_usage() { echo -e "\n -enable_virtual_dhcp : Run dhcp server instead of using static IPs. Use this with -virtual only. \n" echo -e "\n -static_ip_range : static IP range to define when using virtual and when dhcp is not being used (default), must at least a 20 IP block. Format: '192.168.1.1,192.168.1.20' \n" echo -e "\n -ping_site : site to use to verify IP connectivity from the VM when -virtual is used. Format: -ping_site www.blah.com \n" + echo -e "\n -floating_ip_count : number of IP address from the public range to be used for floating IP. Default is 20.\n" } ##find ip of interface @@ -57,6 +58,16 @@ function find_subnet { printf "%d.%d.%d.%d\n" "$((i1 & m1))" "$((i2 & m2))" "$((i3 & m3))" "$((i4 & m4))" } +##finds last usable ip (broadcast minus 1) of a subnet from an IP and netmask +## Warning: This function only works for IPv4 at the moment. +##params: ip, netmask +function find_last_ip_subnet { + IFS=. read -r i1 i2 i3 i4 <<< "$1" + IFS=. read -r m1 m2 m3 m4 <<< "$2" + IFS=. read -r s1 s2 s3 s4 <<< "$((i1 & m1)).$((i2 & m2)).$((i3 & m3)).$((i4 & m4))" + printf "%d.%d.%d.%d\n" "$((255 - $m1 + $s1))" "$((255 - $m2 + $s2))" "$((255 - $m3 + $s3))" "$((255 - $m4 + $s4 - 1))" +} + ##increments subnet by a value ##params: ip, value ##assumes low value @@ -196,6 +207,10 @@ parse_cmdline() { ping_site=$2 shift 2 ;; + -floating_ip_count) + floating_ip_count=$2 + shift 2 + ;; *) display_usage exit 1 @@ -217,6 +232,10 @@ parse_cmdline() { exit 1 fi fi + + if [ -z "$floating_ip_count" ]; then + floating_ip_count=20 + fi } ##disable selinux @@ -717,10 +736,10 @@ configure_network() { ##we have to define an allocation range of the public subnet to give ##to neutron to use as floating IPs - ##we should control this subnet, so this range should work .150-200 - ##but generally this is a bad idea and we are assuming at least a /24 subnet here ##if static ip range, then we take the difference of the end range and current ip ## to be the allocation pool + ##if not static ip, we will use the last 20 IP from the subnet + ## note that this is not a really good idea because the subnet must be at least a /27 for this to work... public_subnet=$(find_subnet $next_public_ip $public_subnet_mask) if [ ! -z "$static_ip_range" ]; then begin_octet=$(echo $next_public_ip | cut -d . -f4) @@ -735,8 +754,9 @@ configure_network() { echo "${blue}Neutron Floating IP range: $public_allocation_start to $public_allocation_end ${reset}" fi else - public_allocation_start=$(increment_subnet $public_subnet 150) - public_allocation_end=$(increment_subnet $public_subnet 200) + last_ip_subnet=$(find_last_ip_subnet $next_public_ip $public_subnet_mask) + public_allocation_start=$(increment_subnet $public_subnet $(( $last_ip_subnet - $floating_ip_count )) ) + public_allocation_end=$(increment_subnet $public_subnet $(( $last_ip_subnet )) ) echo "${blue}Neutron Floating IP range: $public_allocation_start to $public_allocation_end ${reset}" echo "${blue}Foreman VM is up! ${reset}" fi |