How to Set Up the NFS Server, for the Use of the Automounter Capability

soul is the hostname of the master NIS server for a given domain
kitchen is the hostname of the slave NIS server for a given domain
bento is the hostname of the NFS server
nfs is an alias (CNAME) for the NFS server

NFS configuration, logged on bento

Just add the wanted share in the export list on server bento. On Sun Solaris, it is done as follow:

# cat << EOF >> /etc/dfs/dfstab
share -F nfs -o rw -d "Applications repository, NFS shared" /export/bento/apps
EOF

The file system /export/bento/apps must already be available.

Start the nfsd service (and associated daemons: mountd, statd and lockd) if necessary:

# /etc/init.d/nfs.server start

Or simply export the new share:

# shareall

NIS configuration, logged on soul

Because all of the automounted NFS clients (in particular Solaris, AIX and GNU/Linux) know how to use automount maps shared via the NIS protocol, the centralized auto_apps (SYSV style) map resides on the master NIS server, soul.

Since this is a new map to add, there is a little more to do here.

Create the map in the DIR (in NIS parlance) directory:

# touch /etc/ivyp/auto_apps
# ci -i /etc/ivyp/auto_apps
/*
 * Description message: "Automounter map for the applications repository,
 * NFS shared.".
 */
# co -l /etc/yp/auto_apps
# cat << EOF > /etc/ivyp/auto_apps
* -rw,hard,bg,intr nfs:/export/bento/apps/${OSNAME}/${CPU}/${NATISA}/${OSREL}/?
EOF
# ci -u /etc/ivyp/auto_apps

The RCS commands may (and must) be used through the ivv.sh wrapper script.

Teach the customized NIS infrastructure (based on GNU tools, not the native ones) about the new map:

# diff -u /var/yp/GNUmakefile.2005-08-25 /var/yp/GNUmakefile
--- /var/yp/GNUmakefile.2005-08-25      Thu Aug 25 13:18:31 2005
+++ /var/yp/GNUmakefile Thu Aug 25 14:30:04 2005
@@ -76,6 +76,7 @@
 AUTONT=auto_nt
 AUTOALT=auto_alt
 AUTODIRECT=auto_direct
+AUTOAPPS=auto_apps
 else
 AUTOMASTER=auto.master
 AUTOHOME=auto.home
@@ -83,6 +84,7 @@
 AUTONT=auto.nt
 AUTOALT=auto.alt
 AUTODIRECT=auto.direct
+AUTOAPPS=auto.apps
 endif
 GNUGREP=/usr/local/bin/ggrep
 MALIASES=$(YPDBDIR)/$(DOM)/mail.aliases
@@ -96,7 +98,7 @@
 
 all:: passwd group hosts ethers networks rpc services protocols \
        netgroup bootparams aliases publickey netid netmasks c2secure \
-       timezone auto.master auto.home auto.soft auto.nt auto.alt auto.direct \
+       timezone auto.master auto.home auto.soft auto.nt auto.alt auto.apps auto.direct \
        printcap dmmo printers.conf virtualip
 
 diams: dmmo_applis dmmo_sites dmmo_users ypservers
@@ -424,6 +426,22 @@
                echo "couldn't find $(DIR)/auto.alt"; \
        fi
 
+auto.apps.time:  $(DIR)/$(AUTOAPPS)
+       -@if [ -f $(DIR)/$(AUTOAPPS) ]; then \
+               sed -e "/^#/d" -e s/#.*$$// $(DIR)/$(AUTOAPPS) \
+               | $(MAKEDBM) - $(YPDBDIR)/$(DOM)/auto.apps; \
+               touch auto.apps.time; \
+               echo "updated auto.apps"; \
+               if [ ! $(NOPUSH) ]; then \
+                       $(YPPUSH) auto.apps; \
+                       echo "pushed auto.apps"; \
+               else \
+               : ; \
+               fi \
+       else \
+               echo "couldn't find $(DIR)/auto.apps"; \
+       fi
+
 printcap.time: $(DIR)/ypprintcap
        -@if [ -f $(DIR)/yp$(@:.time=) ]; then \
                sed < $(DIR)/yp$(@:.time=) \
@@ -686,6 +704,7 @@
 auto.soft: auto.soft.time
 auto.nt: auto.nt.time
 auto.alt: auto.alt.time
+auto.apps: auto.apps.time
 auto.direct: auto.direct.time
 printcap: printcap.time
 printers.conf: printers.conf.time
@@ -710,6 +729,7 @@
 $(DIR)/$(AUTOSOFT):
 $(DIR)/$(AUTONT):
 $(DIR)/$(AUTOALT):
+$(DIR)/$(AUTOAPPS):
 $(DIR)/$(AUTODIRECT):
 $(DIR)/ypprintcap:
 $(DIR)/printers.conf:

At this stage, the new map must be first manually transferred on the slave NIS server.

Create the corresponding map files (*.dir and *.pag ) only, using:

# cd /etc/ivyp
# gmake -C /var/yp NOPUSH="YES"

# /usr/lib/netsvc/yp/ypxfr -h soul auto.apps
# ls -l /var/yp/`domainname`/auto.apps.*
-rw-r--r--   1 root     root           0 Aug 25 18:10 /var/yp/`domainname`/auto.apps.dir
-rw-r--r--   1 root     root        1024 Aug 25 18:10 /var/yp/`domainname`/auto.apps.pag

Note: You can know which hostname is(are) currently set up as slave server(s) using:

# cd /var/yp/`domainname`
# makedbm -u ypservers
YP_LAST_MODIFIED 1072719185
YP_MASTER_NAME soul
kitchen
timal

Then, on the master server, really push the map this time:

# cd /etc/ivyp
# gmake -C /var/yp

Now, the new mount point and sub-tree must be ready and available to all your properly configured clients, as found in the following online documents: