#!/bin/bash
-# this set of functions serve the main purpose of adding new domains or subdomains to the bind9 DNS server on the current host.
-# it is currently highly specific to running a bunch of domains on a linux VM, where the VM has one IP address.
-# note that bind 'named' must already be configured.
-# also, it is assumed that if a subdomain is being added, then the containing domain has already been configured and is
-# configured in a file similar to "blah.com.conf" in /etc/bind.
+# this set of functions serve the main purpose of adding new domains or
+# subdomains to the bind9 DNS server on the current host. it is currently
+# highly specific to running a bunch of domains on a linux VM, where the VM
+# has one IP address. note that the bind 'named' must already be configured.
+# also, it is assumed that, if a subdomain is being added, then the containing
+# domain has already been configured and is configured in a file similar to
+# "blah.com.conf" in /etc/bind.
#
# Author: Chris Koeritz
-# some defaults that are convenient for current purposes.
-# hmmm: these would need to be parameterized somehow for this script to become really general.
-
-# in our scheme, the single IP address that all our domains map to.
-IP_ADDRESS="10.28.42.20"
-# the email address (where first dot is replaced by @) for the administrator of the domain.
-SERVER_ADMIN="fred.cakelampvm.com"
-# the name of the name server for the new domains (should already be configured).
-MAIN_NAME_SERVER="ns.cakelampvm.com"
-# the name of the mail server for a new domain (should already be configured).
-MAIL_SERVER="mail.cakelampvm.com"
-# the distribution name to be listed in info for the new domain or subdomain.
-DISTRO="ubuntu"
-
-# creates a totally new domain config file for DNS.
-function write_new_domain_file()
-{
- local domain_name="$1"; shift
-
- local domain_file="/etc/bind/${domain_name}.conf"
-
- echo "adding a totally new domain called $domain_name"
- echo "using the config file: $domain_file"
-
- if [ -f $domain_file ]; then
- echo
- echo "The domain configuration file already exists at:"
- echo " $domain_file"
- echo "Since we don't want to tear that down if it has specialized configuration"
- echo "data in it, we will just leave it in place and consider our job done."
- echo
- exit 0
- fi
-
- echo "
-\$TTL 1W
-@ IN SOA @ ${SERVER_ADMIN}. (
- 2017100801 ; serial
- 2H ; refresh
- 8M ; retry
- 14D ; expiry
- 6H ) ; minimum
-
- IN NS ${MAIN_NAME_SERVER}.
- IN MX 10 ${MAIL_SERVER}.
-
-${domain_name}. IN A ${IP_ADDRESS}
- IN HINFO \"linux server\" \"${DISTRO}\"
-" >"$domain_file"
-}
-
-# hooks up a new config file into bind's list of zones.
-function add_zone_for_new_domain()
-{
- local domain_name="$1"; shift
-
- local domain_file="/etc/bind/${domain_name}.conf"
-
- echo "adding a new domain configured by ${domain_file} into"
- echo "the named.conf.local configuration file."
-
- # append the reference to the new conf file in the zone list.
- echo "
-zone \"${domain_name}\" in {
- file \"${domain_file}\";
- type master;
- allow-query { any; };
-};
+export THISDIR="$( \cd "$(\dirname "$0")" && \pwd )" # obtain the script's working directory.
+export FEISTY_MEOW_APEX="$( \cd "$THISDIR/../.." && \pwd )"
-////////////////////////////////////////////////////////////////////////////
+source "$FEISTY_MEOW_APEX/scripts/core/launch_feisty_meow.sh"
+source "$FEISTY_MEOW_SCRIPTS/system/common_sysadmin.sh"
-" >> /etc/bind/named.conf.local
-}
-
-# adds a new subdomain under a containing domain.
-function add_new_subdomain()
-{
- local new_domain="$1"; shift
-
- # split up the full domain name into subdomain portion and containing domain.
- local subdomain="${new_domain%.*.*}"
- local containing_domain="${new_domain#*.}"
-
- echo "adding a subdomain $subdomain to containing domain $containing_domain"
-
- local domain_file="/etc/bind/${containing_domain}.conf"
- # see if config file already exists; if not, complain.
- if [ ! -f "$domain_file" ]; then
- echo "The domain configuration file for $new_domain is missing."
- echo "It should already be present in: $domain_file"
- echo "Please add the containing domain before trying to add a subdomain."
- exit 1
- fi
-
- # see if subdomain already present in config.
- if [ $(grep -q "$new_domain" "$domain_file") ]; then
- echo "The subdomain $subdomain already seems to exist in the domain"
- echo "configuration file: $domain_file"
- echo "Please edit the config file to remove the subdomain before trying"
- echo "to re-add the subdomain."
- exit 1
- fi
-
- # append the new subdomain into the config file.
- echo "
-${subdomain}.${containing_domain}. IN A ${IP_ADDRESS}
- IN HINFO \"linux server\" \"${DISTRO}\"
-" >> /etc/bind/${containing_domain}.conf
-
-}
+# some defaults that are convenient for current purposes.
+# existing values will be respected over our defaults.
-function restart_bind()
-{
- echo restarting DNS server.
- service bind9 restart
- if [ $? -ne 0 ]; then
- echo "The bind service did not restart properly. Please check the error logs."
- exit 1
- fi
- echo DNS server restarted.
-}
+if [ -z "$IP_ADDRESS" ]; then
+ # in our scheme, the single IP address that all our domains map to.
+ IP_ADDRESS="$(get_ip_addresses | head)"
+ echo "** defaulting IP address to $IP_ADDRESS"
+fi
+if [ -z "$SERVER_ADMIN" ]; then
+ # the email address (where first dot is replaced by @) for the administrator of the domain.
+ SERVER_ADMIN="$(fm_username).localhost"
+ echo "** defaulting server admin to $SERVER_ADMIN"
+fi
+if [ -z "$MAIN_NAME_SERVER" ]; then
+ # the name of the name server for the new domains (should already be configured).
+ MAIN_NAME_SERVER="ns.localhost"
+ echo "** defaulting main name server to $MAIN_NAME_SERVER"
+fi
+if [ -z "$MAIL_SERVER" ]; then
+ # the name of the mail server for a new domain (should already be configured).
+ MAIL_SERVER="mail.localhost"
+ echo "** defaulting mail server to $MAIL_SERVER"
+fi
+if [ -z "$DISTRO" ]; then
+ # the distribution name to be listed in info for the new domain or subdomain.
+ DISTRO="ubuntu"
+ echo "** defaulting distro to $DISTRO"
+fi
# main body of script.
projects / feisty_meow.git / blobdiff