database_utils/install-db-server.sh

   1 #!/usr/bin/env bash
   2
   3 DB_NAME='vim_db'
   4 DB_ADMIN_USER="root"
   5 DB_USER="vim"
   6 DB_PASS="vimpw"
   7 DB_ADMIN_PASSWD=""
   8 DB_PORT="3306"
   9 DB_HOST=""
  10 DB_HOST_PARAM=""
  11 QUIET_MODE=""
  12 FORCEDB=""
  13 UPDATEDB=""
  14 NO_PACKAGES=""
  15 UNINSTALL=""
  16
  17
  18 function usage(){
  19     echo -e "usage: sudo $0 [OPTIONS]"
  20     echo -e "Install openvim database server and the needed packages"
  21     echo -e "  OPTIONS"
  22     echo -e "     -U USER:    database admin user. '$DB_ADMIN_USER' by default. Prompts if needed"
  23     echo -e "     -P PASS:    database admin password to be used or installed. Prompts if needed"
  24     echo -e "     -d: database name, '$DB_NAME' by default"
  25     echo -e "     -u: database user, '$DB_USER' by default"
  26     echo -e "     -p: database pass, '$DB_PASS' by default"
  27     echo -e "     -H: HOST  database host. 'localhost' by default"
  28     echo -e "     -T: PORT  database port. '$DB_PORT' by default"
  29     echo -e "     -q --quiet: install in unattended mode"
  30     echo -e "     -h --help:  show this help"
  31     echo -e "     --forcedb:  if database exists, it is dropped and a new one is created"
  32     echo -e "     --updatedb: if database exists, it preserves the content and it is updated to the needed version"
  33     echo -e "     --no-install-packages: use this option to skip updating and installing the requires packages. This avoid wasting time if you are sure requires packages are present e.g. because of a previous installation"
  34     echo -e "     --unistall: delete database"
  35 }
  36
  37 function install_packages(){
  38     [ -x /usr/bin/apt-get ] && apt-get install -y $*
  39     [ -x /usr/bin/yum ]     && yum install     -y $*
  40
  41     #check properly installed
  42     for PACKAGE in $*
  43     do
  44         PACKAGE_INSTALLED="no"
  45         [ -x /usr/bin/apt-get ] && dpkg -l $PACKAGE            &>> /dev/null && PACKAGE_INSTALLED="yes"
  46         [ -x /usr/bin/yum ]     && yum list installed $PACKAGE &>> /dev/null && PACKAGE_INSTALLED="yes"
  47         if [ "$PACKAGE_INSTALLED" = "no" ]
  48         then
  49             echo "failed to install package '$PACKAGE'. Revise network connectivity and try again" >&2
  50             exit 1
  51        fi
  52     done
  53 }
  54
  55 function _install_mysql_package(){
  56     echo '
  57     #################################################################
  58     #####               INSTALL REQUIRED PACKAGES               #####
  59     #################################################################'
  60     [ "$_DISTRO" == "Ubuntu" ] && ! install_packages "mysql-server" && exit 1
  61     [ "$_DISTRO" == "CentOS" -o "$_DISTRO" == "Red" ] && ! install_packages "mariadb mariadb-server" && exit 1
  62
  63     if [[ "$_DISTRO" == "Ubuntu" ]]
  64     then
  65         #start services. By default CentOS does not start services
  66         service mysql start >> /dev/null
  67         # try to set admin password, ignore if fails
  68         [[ -n $DBPASSWD ]] && mysqladmin -u $DB_ADMIN_USER -s password $DB_ADMIN_PASSWD
  69     fi
  70
  71     if [ "$_DISTRO" == "CentOS" -o "$_DISTRO" == "Red" ]
  72     then
  73         #start services. By default CentOS does not start services
  74         service mariadb start
  75         service httpd   start
  76         systemctl enable mariadb
  77         systemctl enable httpd
  78         read -e -p "Do you want to configure mariadb (recommended if not done before) (Y/n)" KK
  79         [ "$KK" != "n" -a  "$KK" != "no" ] && mysql_secure_installation
  80
  81         read -e -p "Do you want to set firewall to grant web access port 80,443  (Y/n)" KK
  82         [ "$KK" != "n" -a  "$KK" != "no" ] &&
  83             firewall-cmd --permanent --zone=public --add-service=http &&
  84             firewall-cmd --permanent --zone=public --add-service=https &&
  85             firewall-cmd --reload
  86     fi
  87 }
  88
  89 function _create_db(){
  90     echo '
  91     #################################################################
  92     #####        CREATE AND INIT DATABASE                       #####
  93     #################################################################'
  94     echo "mysqladmin --defaults-extra-file="$TEMPFILE" -s create ${DB_NAME}"
  95     mysqladmin --defaults-extra-file="$TEMPFILE" -s create ${DB_NAME} \
  96         || ! echo "Error creating ${DB_NAME} database" >&2 \
  97         || exit 1
  98     echo "CREATE USER $DB_USER@'localhost' IDENTIFIED BY '$DB_PASS';"   | mysql --defaults-extra-file="$TEMPFILE" -s 2>/dev/null \
  99         || echo "Warning: User '$DB_USER' cannot be created at database. Probably exist" >&2
 100     echo "GRANT ALL PRIVILEGES ON ${DB_NAME}.* TO '$DB_USER'@'localhost';" | mysql --defaults-extra-file="$TEMPFILE" -s \
 101         || ! echo "Error: Granting privileges to user '$DB_USER' at database" >&2 \
 102         || exit 1
 103     echo " Database '${DB_NAME}' created, user '$DB_USER' password '$DB_PASS'"
 104     DIRNAME=$(dirname $(readlink -f ${BASH_SOURCE[0]}))
 105     ${DIRNAME}/init_vim_db.sh -u"$DB_USER" -p"$DB_PASS" -d"$DB_NAME" -P"$DB_PORT" $DB_HOST_PARAM \
 106         || ! echo "Error initializing database '$DB_NAME'" >&2 \
 107         || exit 1
 108 }
 109
 110 function _delete_db(){
 111    mysqladmin --defaults-extra-file="$TEMPFILE" -s drop "${DB_NAME}" $DBDELETEPARAM \
 112        || ! echo "Error: Could not delete '${DB_NAME}' database" >&2 \
 113        || exit 1
 114 }
 115
 116 function _update_db(){
 117     echo '
 118     #################################################################
 119     #####        UPDATE DATABASE                                #####
 120     #################################################################'
 121     echo "CREATE USER $DB_USER@'localhost' IDENTIFIED BY '$DB_PASS';" | mysql --defaults-extra-file="$TEMPFILE" -s 2>/dev/null \
 122         || echo "Warning: User '$DB_USER' cannot be created at database. Probably exist" >&2
 123     echo "GRANT ALL PRIVILEGES ON ${DB_NAME}.* TO '$DB_USER'@'localhost';" | mysql --defaults-extra-file="$TEMPFILE" -s \
 124         || ! echo "Error: Granting privileges to user '$DB_USER' at database" >&2 \
 125         || exit 1
 126     echo " Granted privileges to user '$DB_USER' password '$DB_PASS' to existing database '${DB_NAME}'"
 127     DIRNAME=$(dirname $(readlink -f ${BASH_SOURCE[0]}))
 128     ${DIRNAME}/migrate_vim_db.sh -u"$DB_USER" -p"$DB_PASS" -d"$DB_NAME" -P"$DB_PORT" $DB_HOST_PARAM \
 129         || ! echo "Error updating database '$DB_NAME'" >&2 \
 130         || exit 1
 131 }
 132
 133 function _uninstall_db(){
 134 echo '
 135     #################################################################
 136     #####        DELETE DATABASE                                #####
 137     #################################################################'
 138     DBDELETEPARAM=""
 139     [[ -n $QUIET_MODE ]] && DBDELETEPARAM="-f"
 140     _delete_db
 141 }
 142
 143 function db_exists(){  # (db_name, credential_file)
 144     RESULT=`mysqlshow --defaults-extra-file="$2" | grep -v Wildcard | grep -o $1` \
 145         || ! echo "$RESULT" >&2 \
 146         || exit 1
 147     if [ "$RESULT" == "$1" ]; then
 148         # echo " DB $1 exists"
 149         return 0
 150     fi
 151     # echo " DB $1 does not exist"
 152     return 1
 153 }
 154
 155 while getopts ":U:P:d:u:p:H:T:hiq-:" o; do
 156     case "${o}" in
 157         U)
 158             export DB_ADMIN_USER="$OPTARG"
 159             ;;
 160         P)
 161             export DB_ADMIN_PASSWD="$OPTARG"
 162             ;;
 163         d)
 164             export DB_NAME="$OPTARG"
 165             ;;
 166         u)
 167             export DB_USER="$OPTARG"
 168             ;;
 169         p)
 170             export DB_PASS="$OPTARG"
 171             ;;
 172         H)
 173             export DB_HOST="$OPTARG"
 174             export DB_HOST_PARAM="-h$DB_HOST"
 175             ;;
 176         T)
 177             export DB_PORT="$OPTARG"
 178             ;;
 179         q)
 180             export QUIET_MODE=yes
 181             export DEBIAN_FRONTEND=noninteractive
 182             ;;
 183         h)
 184             usage && exit 0
 185             ;;
 186         -)
 187             [ "${OPTARG}" == "help" ] && usage && exit 0
 188             [ "${OPTARG}" == "forcedb" ] && FORCEDB="y" && continue
 189             [ "${OPTARG}" == "updatedb" ] && UPDATEDB="y" && continue
 190             [ "${OPTARG}" == "quiet" ] && export QUIET_MODE=yes && export DEBIAN_FRONTEND=noninteractive && continue
 191             [ "${OPTARG}" == "no-install-packages" ] && export NO_PACKAGES=yes && continue
 192             [ "${OPTARG}" == "uninstall" ] &&  UNINSTALL="y" && continue
 193             echo -e "Invalid option: '--$OPTARG'\nTry $0 --help for more information" >&2
 194             exit 1
 195             ;;
 196         \?)
 197             echo -e "Invalid option: '-$OPTARG'\nTry $0 --help for more information" >&2
 198             exit 1
 199             ;;
 200         :)
 201             echo -e "Option '-$OPTARG' requires an argument\nTry $0 --help for more information" >&2
 202             exit 1
 203             ;;
 204         *)
 205             usage >&2
 206             exit 1
 207             ;;
 208     esac
 209 done
 210 if [ -n "$FORCEDB" ] && [ -n "$UPDATEDB" ] ; then
 211     echo "Error: options --forcedb and --updatedb are mutually exclusive" >&2
 212     exit 1
 213 fi
 214
 215 # Discover Linux distribution
 216 # try redhat type
 217 [ -f /etc/redhat-release ] && _DISTRO=$(cat /etc/redhat-release 2>/dev/null | cut  -d" " -f1)
 218 # if not assuming ubuntu type
 219 [ -f /etc/redhat-release ] || _DISTRO=$(lsb_release -is  2>/dev/null)
 220
 221 # Creating temporary file for MYSQL installation and initialization"
 222 TEMPFILE="$(mktemp -q --tmpdir "installdb.XXXXXX")"
 223 trap 'rm -f "$TEMPFILE"' EXIT
 224 chmod 0600 "$TEMPFILE"
 225 echo -e "[client]\n user='${DB_ADMIN_USER}'\n password='$DB_ADMIN_PASSWD'\n host='$DB_HOST'\n port='$DB_PORT'" > "$TEMPFILE"
 226
 227 #check and ask for database user password. Must be done after database installation
 228 if [[ -z $QUIET_MODE ]]
 229 then
 230     echo -e "\nCheking database connection and ask for credentials"
 231     # echo "mysqladmin --defaults-extra-file=$TEMPFILE -s status >/dev/null"
 232     while ! mysqladmin --defaults-extra-file="$TEMPFILE" -s status >/dev/null
 233     do
 234         [ -n "$logintry" ] &&  echo -e "\nInvalid database credentials!!!. Try again (Ctrl+c to abort)"
 235         [ -z "$logintry" ] &&  echo -e "\nProvide database credentials"
 236         read -e -p "database admin user? ($DB_ADMIN_USER) " DBUSER_
 237         [ -n "$DBUSER_" ] && DB_ADMIN_USER=$DBUSER_
 238         read -e -s -p "database admin password? (Enter for not using password) " DBPASSWD_
 239         [ -n "$DBPASSWD_" ] && DB_ADMIN_PASSWD="$DBPASSWD_"
 240         [ -z "$DBPASSWD_" ] && DB_ADMIN_PASSWD=""
 241         echo -e "[client]\n user='${DB_ADMIN_USER}'\n password='$DB_ADMIN_PASSWD'\n host='$DB_HOST'\n port='$DB_PORT'" > "$TEMPFILE"
 242         logintry="yes"
 243     done
 244 fi
 245
 246 if [[ ! -z "$UNINSTALL" ]]
 247 then
 248     _uninstall_db
 249     exit
 250 fi
 251
 252 if [[ -z "$NO_PACKAGES" ]]
 253 then
 254     [ "$USER" != "root" ] && echo "Needed root privileges" >&2 && exit 1
 255     _install_mysql_package || exit 1
 256 fi
 257
 258 # Create or update database
 259 if db_exists $DB_NAME $TEMPFILE ; then
 260     if [[ -n $FORCEDB ]] ; then
 261         # DBDELETEPARAM=""
 262         # [[ -n $QUIET_MODE ]] && DBDELETEPARAM="-f"
 263         DBDELETEPARAM="-f"
 264         _delete_db
 265         _create_db
 266     elif [[ -n $UPDATEDB ]] ; then
 267         _update_db
 268     elif [[ -z $QUIET_MODE ]] ; then
 269         echo "database '$DB_NAME' exist. Reinstall it?"
 270         read -e -p "Type 'y' to drop and reinstall exiting database (content will be lost), Type 'n' to update existing database (y/N)? " KK_
 271         if [ "$KK_" == "yes" ] || [ "$KK_" != "y" ] ; then
 272             _delete_db
 273             _create_db
 274         else
 275             _update_db
 276         fi
 277     else
 278         echo "Database '$DB_NAME' exists. Use option '--forcedb' to force the deletion of the existing one, or '--updatedb' to use existing one and update it"
 279         exit 1
 280     fi
 281 else
 282     _create_db
 283 fi
 284