retire initscript in favour of systemd unit files (#719419)

Signed-off-by: Adam Tkac <atkac@redhat.com>

1 files changed, 80 insertions, 0 deletions

diff --git a/setup-named-chroot.sh b/setup-named-chroot.sh
new file mode 100755
index 0000000..38cb1ce
--- /dev/null
+++ b/setup-named-chroot.sh
@@ -0,0 +1,80 @@
+#!/bin/bash
+
+ROOTDIR_MOUNT='/etc/named /etc/pki/dnssec-keys /var/named /etc/named.conf
+/etc/named.dnssec.keys /etc/named.rfc1912.zones /etc/rndc.conf /etc/rndc.key
+/usr/lib64/bind /usr/lib/bind /etc/named.iscdlv.key /etc/named.root.key'
+
+usage()
+{
+  echo
+  echo 'This script setups chroot environment for BIND'
+  echo 'Usage: setup-named-chroot.sh ROOTDIR [on|off]'
+}
+
+if ! [ "$#" -eq 2 ]; then
+  echo 'Wrong number of arguments'
+  usage
+  exit 1
+fi
+
+ROOTDIR="$1"
+
+# Exit if ROOTDIR doesn't exist
+if ! [ -d "$ROOTDIR" ]; then
+  echo "Root directory $ROOTDIR doesn't exist"
+  usage
+  exit 1
+fi
+
+mount_chroot_conf()
+{
+  if [ -n "$ROOTDIR" ]; then
+    for all in $ROOTDIR_MOUNT; do
+      # Skip nonexistant files
+      [ -e "$all" ] || continue
+
+      # If mount source is a file
+      if ! [ -d "$all" ]; then
+        # mount it only if it is not present in chroot or it is empty
+        if ! [ -e "$ROOTDIR$all" ] || [ `stat -c'%s' "$ROOTDIR$all"` -eq 0 ]; then
+          touch "$ROOTDIR$all"
+          mount --bind "$all" "$ROOTDIR$all"
+        fi
+      else
+        # Mount source is a directory. Mount it only if directory in chroot is
+        # empty.
+        if [ -e "$all" ] && [ `ls -1A $ROOTDIR$all | wc -l` -eq 0 ]; then
+          mount --bind "$all" "$ROOTDIR$all"
+        fi
+      fi
+    done
+  fi
+}
+
+umount_chroot_conf()
+{
+  for all in $ROOTDIR_MOUNT; do
+    # Check if file is mount target. Do not use /proc/mounts because detecting
+    # of modified mounted files can fail.
+    if mount | grep -q '.* on '"$ROOTDIR$all"' .*'; then
+      umount "$ROOTDIR$all"
+      # Remove temporary created files
+      [ -f "$all" ] && rm -f "$ROOTDIR$all"
+    fi
+  done
+}
+
+case "$2" in
+  on)
+    mount_chroot_conf
+    ;;
+  off)
+    umount_chroot_conf
+    ;;
+  *)
+    echo 'Second argument has to be "on" or "off"'
+    usage
+    exit 1
+esac
+
+exit 0