4.6. Migrating automount maps from NIS to IdM

Procedure

1. Install the yp-tools package:

   [root@nis-server ~]# dnf install yp-tools -y

2. Create the /root/nis-automounts.sh script with the following content on the NIS server:

   #!/bin/sh
   # $1 is for the automount entry in ipa
   
   ipa automountlocation-add $1
   
   # $2 is the NIS domain, $3 is the primary NIS server, $4 is the map name
   
   ypcat -k -d $2 -h $3 $4 > /dev/shm/nis-map.$4 2>&1
   
   ipa automountmap-add $1 $4
   
   basedn=$(ipa env basedn | tr -d '[:space:]' | cut -f2 -d:)
   cat > /tmp/amap.ldif <<EOF
   dn: nis-domain=$2+nis-map=$4,cn=NIS Server,cn=plugins,cn=config
   objectClass: extensibleObject
   nis-domain: $2
   nis-map: $4
   nis-base: automountmapname=$4,cn=$1,cn=automount,$basedn
   nis-filter: (objectclass=\*)
   nis-key-format: %{automountKey}
   nis-value-format: %{automountInformation}
   EOF
   
   # $5 is the LDAP server
   
   ldapadd -x -h $5 -D "cn=Directory Manager" -W -f /tmp/amap.ldif
   
   IFS=$'\n'
   for line in $(cat /dev/shm/nis-map.$4); do
   	IFS=" "
   	key=$(echo "$line" | awk '{print $1}')
   	info=$(echo "$line" | sed -e "s^$key[ \t]*")
   	ipa automountkey-add nis $4 --key="$key" --info="$info"
   done

   注意

   The script exports the NIS automount information, generates an LDAP Data Interchange Format (LDIF) for the automount location and associated map, and imports the LDIF file into the IdM Directory Server.

3. Authenticate as the IdM admin user:

   [root@nis-server ~]# kinit admin

4. Run the script. For example:

   [root@nis-server ~]# sh /root/nis-automounts.sh location nisdomain
        nis-server.example.com map_name