Managing instances within SMF

Managing instances within SMF.txt

Managing instances within SMF

SMF is a great Solaris 10 feature, however it lacks some truly useful functionality. Imagine that you need to manage multiple instances of one service with different options or context (for example multiple Oracle instances or bunch of tomcats). How will you create this instances? Modify manifest and re-import it? Simply create legacy script for each instance? Here is the way for creating instances on the fly.

UPDATE: Tomcat smf manifest and method can be obtained from here

Create instance of service svc:/network/tomcat named devel:

# svccfg -s svc:/network/tomcat add devel

Copy propetry groups from initial snapshot of default instance (notice the line break between selectsnap last-import and listpg):

# svccfg -s svc:/network/tomcat:default "selectsnap last-import
listpg" |sed -e 's/NONPERSISTENT/P/' |xargs -l svccfg -s svc:/network/tomcat:devel addpg

Copy properties from initial snapshot of default instance (notice the line break between selectsnap last-import and listprop):

# svccfg -s svc:/network/tomcat:default "selectsnap last-import
listprop" | perl -ne 'print $_ if s#^([^ ]+/[^ ]+) *([^ ]+) *(.*)$#$1 = $2: (\\"$3\\")#' |xargs -l svccfg -s svc:/network/tomcat:devel setprop

Setup and start new instance:

# svcadm refresh svc:/network/tomcat:devel
# svccfg -s svc:/network/tomcat:devel setprop catalina_home = "/usr/local/tomcat"
# svccfg -s svc:/network/tomcat:devel setprop java_home = "/usr/local/java"
# svcadm enable svc:/network/tomcat:devel