initial commit of a *whole bunch* of old Egressive shell scripts, used to make many people redundant.

egmakedbs/egmakedb

@@ -0,0 +1,163 @@
+#!/bin/bash
+
+MYCNF=$HOME/.my.cnf
+DBHOST=mysql0
+GRANTHOST='%'
+
+[ -f /etc/egscripts/egmakedb.cnf ] && . /etc/egscripts/egmakedb.cnf
+
+SIMULATE=0
+
+usage() {
+  cat <<EOT
+
+Usage: `basename $0` [ OPTIONS ] user dbname
+
+Create a MySQL database.  As well as creating the database, this script will
+grant access to the database to the specified user, which must be a real user
+on the system, and create an additional MySQL user with the same name as the
+database.
+
+OPTIONS
+
+  -h            - Show this help
+  -H host       - Set database host (Default: $DBHOST)
+  -c mycnf      - Use specified my.cnf file for access and database creation 
+                  (Default: $MYCNF)
+  -g hostspec   - Specify the hostname part of the GRANT specification for
+                  user, e.g. GRANT ... TO user@'$GRANTHOST'
+  -s            - Simulate.  Just output the SQL to be run to STDOUT.
+
+The script outputs a set of variables on stdout which can be eval'd for
+use from other shell commands.  These variables are DBHOST DBNAME DBOWNER
+DBUSER and DBPASS
+
+EOT
+}
+
+# MySQL only allows 16 character user names
+make_mysql_username() {
+  prefix=$1
+  suffix=$2
+  
+  # Suffix is optional
+  if [ -n "$suffix" ] ; then
+    let comp="15 - ${#suffix}"
+    echo "${prefix:0:$comp}_${suffix}"
+  else
+    echo "${prefix:0:16}"
+  fi
+}
+
+get_next_username() {
+
+  user=$1
+
+  if [ -z "$user" ] ; then
+    return
+  fi
+
+  # Only try 99 times
+  for i in `seq 1 99` ; do
+    username=`make_mysql_username $user $i`
+    count=`printf "SELECT COUNT(*) FROM mysql.user WHERE USER = '%s'" $username | $mysql_select`
+    if [ "$count" -eq 0 ] ; then
+      echo "${username}"
+      return
+    fi
+  done
+}
+
+create_db() {
+  db=$1
+  user=$2
+
+  if [ -z "$db" ] || [ -z "$user" ] ; then
+    echo "Err: invalid call to grant_privs() function" >&2
+    exit 1
+  fi
+
+  # In addition to granting all privileges for $user, create a user
+  # specific for this db.  This will be in the format $user_1, $user_2
+  # up to $user_99, with the lowest available number being chosen.
+  dbuser=`get_next_username $user`
+
+  if [ -z "$dbuser" ] ; then
+    echo "Unable to generate a new username for db $db" >&2
+    exit 1
+  fi
+
+  printf 'CREATE DATABASE `%s`;' $dbname | $mysql
+
+  # If a .my.cnf file exists for the main user, assume they
+  # already have a password set.  Otherwise create a new MySQL user
+  # and a .my.cnf in their home directory.
+  if [ ! -e /home/${user}/.my.cnf ] ; then
+    passwd=`pwgen -B 10 1`
+    extra_grants=" IDENTIFIED BY '$passwd'"
+    if [ $SIMULATE -eq 1 ] ; then
+      echo "Create /home/${user}/.my.cnf"
+    else
+      if [ "$LOGNAME" != "$user" ] ; then
+        runasuser="sudo -u $user"
+      fi
+      $runasuser egcreatemycnf /home/${user}/.my.cnf $DBHOST $user $passwd
+    fi
+  fi
+
+  # Grant all privileges on the database to the main user
+  $mysql <<EOT
+    GRANT ALL PRIVILEGES ON \`$dbname\`.* TO '$user'@'$GRANTHOST'$extra_grants;
+EOT
+
+  passwd=`pwgen -B 10 1`
+  $mysql <<EOT
+    GRANT ALL PRIVILEGES ON \`$dbname\`.* TO '$dbuser'@'$GRANTHOST' IDENTIFIED BY '$passwd';
+EOT
+  echo "DBHOST=$DBHOST"
+  echo "DBNAME=$dbname"
+  echo "DBOWNER=$user"
+  echo "DBUSER=$dbuser"
+  echo "DBPASS=$passwd"
+}
+
+while getopts "c:H:g:hs" OPT ; do
+  case $OPT in
+    c)  MYCNF=$OPTARG ;;
+    g)  GRANTHOST=$OPTARG ;;
+    H)  DBHOST=$OPTARG ;;
+    s)  SIMULATE=1 ;;
+    h)  usage ; exit 0 ;;
+    *)  usage ; exit 1 ;;
+  esac
+done
+
+shift $(($OPTIND - 1))
+
+if [ $# -ne 2 ] ; then
+  usage
+  exit 1
+fi
+
+user=$1
+dbname=$2
+
+if [ $SIMULATE -eq 1 ] ; then
+  mysql="cat"
+else
+  mysql="mysql --defaults-file=$MYCNF -h $DBHOST -s"
+fi
+
+# In simulate mode, we still need to do real selects to set up
+# variables
+mysql_select="mysql --defaults-file=$MYCNF -h $DBHOST -s"
+
+# Do some sanity checks
+if ! id $user > /dev/null ; then
+  exit 1
+fi
+
+# Exit on any error
+set -e
+
+create_db $dbname $user