Add support of configuration file for installation scripts.

bbb-greenlight-install.sh

@@ -3,19 +3,12 @@
 cript_name="$(basename $(realpath $0))"
 working_dir="$(dirname $(realpath $0))"
 
-conf_file="${working_dir}/conf/${script_name%%.*}.conf"
+#conf_file="${working_dir}/conf/${script_name%%.*}.conf"
+conf_file="${working_dir}/conf/bbb.conf"
 
 LOCK_DIR="/tmp/$(basename $0).$$.LOCK"
 log_file="${LOCK_DIR}/${script_name%%.*}.log"
 
-DIST="ubuntu"
-DIST_RELEASE="xenial"
-
-GREENLIGTH_DIR="/usr/local/greenlight"
-
-FQDN_HOSTNAME="bbb.oopen.de"
-HOSTNAME=" ${FQDN_HOSTNAME%%.*}"
-
 
 # ----------
 # Base Function(s)
@@ -115,6 +108,35 @@ blank_line() {
    fi
 }
 
+detect_os () {
+
+   if $(which lsb_release > /dev/null 2>&1) ; then
+
+      DIST="$(lsb_release -i | awk '{print tolower($3)}')"
+      DIST_VERSION="$(lsb_release -r | awk '{print tolower($2)}')"
+      DIST_CODENAME="$(lsb_release -c | awk '{print tolower($2)}')"
+
+      if [[ "$DIST" = "debian" ]]; then
+         if $(echo "$DIST_VERSION" | grep -q '\.') ; then
+            DIST_VERSION=$(echo "$DIST_VERSION" | cut --delimiter='.' -f1)
+         fi
+      fi
+
+   elif [[ -e "/etc/os-release" ]]; then
+
+      . /etc/os-release
+
+      DIST=$ID
+      DIST_VERSION=${VERSION_ID}
+
+   fi
+
+   # remove whitespace from DIST and DIST_VERSION
+   DIST="${DIST// /}"
+   DIST_VERSION="${DIST_VERSION// /}"
+
+}
+
 
 
 # ----------
@@ -158,6 +180,130 @@ if $terminal ; then
    echo -e "\033[1m----------\033[m"
 fi
 
+
+# ----------
+#  Read Configurations from $conf_file
+# ----------
+
+
+# - Give your default values here
+# -
+DEFAULT_FQDN_HOSTNAME="$(hostname -f)"
+DEFAULT_GREENLIGTH_DIR="/usr/local/greenlight"
+
+if [[ -f "$conf_file" ]]; then
+   source "$conf_file"
+else
+   warn "No configuration file '$conf_file' present.\n
+             Loading default values.."
+fi
+
+[[ -n "$FQDN_HOSTNAME" ]] && DEFAULT_FQDN_HOSTNAME="$FQDN_HOSTNAME"
+[[ -n "$GREENLIGTH_DIR" ]] && DEFAULT_GREENLIGTH_DIR="$GREENLIGTH_DIR"
+
+
+blank_line
+echononl "Detect distribution/release of running OS.."
+detect_os > "$log_file" 2>&1
+if [[ $? -ne 0 ]]; then
+	echo_failed
+	error "$(cat "$log_file")"
+else
+	echo_ok
+fi
+
+
+FQDN_HOSTNAME=
+echo ""
+echo -e "\033[32m--\033[m"
+echo ""
+echo "Insert full qualified hostname for BigBlueButton Service"
+echo ""
+if [[ -n "$DEFAULT_FQDN_HOSTNAME" ]]; then
+   while [[ "X${FQDN_HOSTNAME}" = "X" ]]; do
+      echononl "Full qualified hostname [${DEFAULT_FQDN_HOSTNAME}]: "
+      read FQDN_HOSTNAME
+      if [[ "X${FQDN_HOSTNAME}" = "X" ]]; then
+         FQDN_HOSTNAME=$DEFAULT_FQDN_HOSTNAME
+      fi
+      if [[ ! $FQDN_HOSTNAME =~ \. ]]; then
+         echo -e "\n\tGiven Host \033[33m\033[1m$FQDN_HOSTNAME\033[m seems not to be a full qualified hostname.\n"
+         FQDN_HOSTNAME=""
+      fi
+   done
+else
+   while [[ "X${FQDN_HOSTNAME}" = "X" ]]; do
+      echononl "Full qualified hostname: "
+      read FQDN_HOSTNAME
+      if [[ "X${FQDN_HOSTNAME}" = "X" ]]; then
+         echo -e "\n\t\033[33m\033[1mFull qualified hostname is reqired\033[m\n"
+      fi
+      if [[ ! $FQDN_HOSTNAME =~ \. ]]; then
+         echo -e "\n\tGiven Host \033[33m\033[1m$FQDN_HOSTNAME\033[m seems not to be a full qualified hostname.\n"
+         FQDN_HOSTNAME=""
+      fi
+   done
+fi
+HOSTNAME="${FQDN_HOSTNAME%%.*}"
+
+
+GREENLIGTH_DIR=
+echo ""
+echo -e "\033[32m--\033[m"
+echo ""
+echo "Give the path into install 'greelight':"
+echo ""
+if [[ -n "$DEFAULT_GREENLIGTH_DIR" ]]; then
+   while [[ "X${GREENLIGTH_DIR}" = "X" ]]; do
+      echononl "Full qualified hostname [${DEFAULT_GREENLIGTH_DIR}]: "
+      read GREENLIGTH_DIR
+      if [[ "X${GREENLIGTH_DIR}" = "X" ]]; then
+         GREENLIGTH_DIR=$DEFAULT_GREENLIGTH_DIR
+      fi
+      if [[ ! -d "$(dirname "$GREENLIGTH_DIR")"  ]]; then
+         echo -e "\n\tBase directory \033[33m\033[1m$(dirname "$GREENLIGTH_DIR")\033[m not found.\n"
+         GREENLIGTH_DIR=""
+      fi
+   done
+else
+   while [[ "X${GREENLIGTH_DIR}" = "X" ]]; do
+      echononl "Full qualified hostname: "
+      read GREENLIGTH_DIR
+      if [[ "X${GREENLIGTH_DIR}" = "X" ]]; then
+         echo -e "\n\t\033[33m\033[1mInstall directory is reqired\033[m\n"
+      fi
+      if [[ ! -d "$(dirname "$GREENLIGTH_DIR")"  ]]; then
+         echo -e "\n\tBase directory \033[33m\033[1m$(dirname "$GREENLIGTH_DIR")\033[m not found.\n"
+         GREENLIGTH_DIR=""
+      fi
+   done
+fi
+
+
+echo ""
+echo ""
+echo -e "\t\033[32mStart pre-install script for BigBlueButton Service with the following parameters\033[m"
+echo ""
+echo -e "\tFull qualified Hostname............: $FQDN_HOSTNAME"
+echo -e "\tHostname...........................: $HOSTNAME"
+echo ""
+echo -e "\tOS Distribution....................: $DIST"
+echo -e "\tDistribution's codename............: $DIST_CODENAME"
+echo ""
+echo -e "\tInstallation directory greenlight..: $GREENLIGTH_DIR"
+echo ""
+echononl "einverstanden (yes/no): "
+read OK
+OK=${OK,,}
+while [ "X$OK" != "Xyes" -a "X$OK" != "Xno" ]; do
+   echononl "Wrong entry! [yes/no]: "
+   read OK
+   OK=${OK,,}
+done
+[ $OK = "yes" ] || fatal Repeat with other settings..
+
+echo ""
+
 blank_line
 
 # Stop Service if started