From d60ed67fa4eeeba312646358316e49c0a6cbc6f6 Mon Sep 17 00:00:00 2001
From: B Stack <bgstack15@gmail.com>
Date: Thu, 20 Oct 2016 16:15:23 -0400
Subject: initial commit

---
 s1_setname.sh | 115 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 115 insertions(+)
 create mode 100755 s1_setname.sh

(limited to 's1_setname.sh')

diff --git a/s1_setname.sh b/s1_setname.sh
new file mode 100755
index 0000000..bbd8608
--- /dev/null
+++ b/s1_setname.sh
@@ -0,0 +1,115 @@
+#!/bin/bash
+# File: /root/s1_setname.sh
+# Package: deployscripts
+# Author: bgstack15
+# Startdate: 2015
+# Title: Template Script 1: Set Name
+# Purpose: Sets hostname regardless of OS
+# History: 2016-08-16 Given original headers
+# Usage: ./s1[tab][enter]
+#   observe the /bin/bash shebang. I only run this on a system after bash is installed.
+# Reference:
+# Improve:
+
+eval flavor=$( grep -iE "^\s*ID=" /etc/os-release 2>/dev/null | sed 's/^.*=//;' )
+if test -z "${flavor}"; then test "$( uname -s )" = "FreeBSD" && flavor=freebsd; fi
+case "${flavor}" in
+   centos)
+      motdfile=/etc/motd
+      netfile=/etc/sysconfig/network
+      templatename=centos7alpha
+      ;;
+   ubuntu)
+      motdfile=/etc/issue
+      templatename=ubuntu16alpha
+      ;;
+   freebsd)
+      flavor=freebsd
+      motdfile=/etc/motd
+      netfile=/etc/rc.conf
+      templatename=freebsd10alpha
+      ;;
+   *)
+      echo "$0: Error 1. Cannot determine OS from /etc/os-release. Aborted." 1>&2
+      exit 1
+      ;;
+esac
+
+# OS agnostic
+server=
+role=
+hostnamefile=/etc/hostname
+tmpfile1=~/.$$.$RANDOM.tmp
+
+function clean_setname {
+   rm -f $tmpfile1 2>/dev/null
+   exit
+}
+
+trap 'clean_setname' 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
+
+while [[ -z "$server" ]];
+do
+   printf "server (excluding .example.com): "
+   read server
+done
+
+while [[ -z "$role" ]];
+do
+   printf "role: "
+   read role
+done
+
+if [[ "$server" = "${server%%.*}" ]];
+then
+   serverlong="${server}".example.com
+else
+   # assume we placed .example.com in it already
+   serverlong=${server}
+   server="${serverlong%%.*}"
+fi
+
+# UPDATE FILES
+# MOTD
+sed "s/SERVER/${server}/g;s/ROLE/${role}/g;" <${motdfile} > ${tmpfile1}
+cp -p ${tmpfile1} ${motdfile}
+chmod 444 ${motdfile}
+# HOSTNAME
+printf "${serverlong}\n" > ${hostnamefile}
+chmod 644 ${hostnamefile}
+
+# FLAVOR-SPECIFIC ACTIONS
+case "${flavor}" in
+   centos)
+      # UPDATE hostname and NetworkManager
+      hostnamectl set-hostname "${serverlong}"
+      {
+         echo "NETWORKING=yes"
+         echo "HOSTNAME=$serverlong"
+      } > ${netfile}
+      ;;
+   ubuntu)
+      # Change volume group names if necessary
+      oldvg=$( vgs --rows | grep -E "^\s*VG" | awk '{print $2}' )
+      case "${oldvg}" in
+         *ubuntu16*-vg)
+            vgrename "${oldvg}" "${server}-vg" >/dev/null 2>&1
+            sed -i "s/${oldvg%-vg}--vg/${server}--vg/g;" /etc/fstab
+            sed -i "s/${oldvg%-vg}--vg/${server}--vg/g;" /boot/grub/grub.cfg
+            update-grub >/dev/null 2>&1
+            sed -i "s/${templatename}/${server}/g;" /etc/postfix/main.cf
+            /etc/init.d/postfix reload >/dev/null 2>&1
+            ;;
+         *) [ ];;
+      esac
+      ;;
+   freebsd)
+         # change hostname for freebsd. Need to update rc.conf, smb4.conf, /etc/mail/freebsd.mc
+         hostname "${serverlong}"
+         sed -I -e "s/^hostname=\".*\"/hostname=\"${serverlong}\"/;" /etc/rc.conf /etc/rc.conf.example
+         sed -I -e "s/netbios name = .*$/netbios name = $( hostname -s )/;" /usr/local/etc/smb4.conf /usr/local/etc/smb4.conf.example
+         sed -i -e 's/MASQUERADE_AS.*$/MASQUERADE_AS(\`'"$( hostname )'"')/;' /etc/mail/freebsd.mc
+
+      ;;
+# no wildcard needed because already vetted in flavor check earlier
+esac
-- 
cgit