[ale] rpm's src vs binary and the confusion
Jeff Hubbs
jhubbslist at att.net
Wed Jun 5 00:04:08 EDT 2013
Meh. Admins rotate in and out so much these days and documenting things
is so unheard of...don't get me started. Suffice it to say that no one
will curse your name because no one will remember it. :)
A few years ago I was trying to address a very unhealthy
Tomcat-behind-Apache platform that was using some very old version of
Tomcat that was so unstable that it was end-of-lifed and a whole new
branch of the tree emerged with a "there be dragons" sign left at the
old. :)
The Apache people, over and over again, would say DON'T use your
distro's package manager...just DON'T!!! And sure enough, on RH and
-alikes, I could see why at the time. Whoever managed the Gentoo ebuild
was very meticulous and it *would* work perfectly, but you could see
that a "Tomcat way" and a "Gentoo way" of doing and placing things was
being very carefully reconciled. Just the same, if you eschewed the
Tomcat ebuild under Gentoo and just took the Tomcat distribution as the
Apache people intended, there wasn't any interference and it would work
just fine also, provided you'd laid in the dependencies by hand via
Portage.
On 6/4/13 8:40 PM, Jim Kinney wrote:
>
> +1e^infinity
> KISS principle keeps later admins from putting a price on your head.
>
> On Jun 4, 2013 8:21 PM, "Scott McBrien" <smcbrien at gmail.com
> <mailto:smcbrien at gmail.com>> wrote:
>
> I would attempt to dissuade you from using a delta rpm. With
> deltas, you end up being really really concerned with versions.
> So after your first delta gets applied, if you have another
> update, you make a delta of the delta, which means if there's a
> machine with the vanilla rpm out there and you apply delta2 on it,
> things devolve into madness quite quickly. Does a regular RPM
> contain more stuff and take up more space? Sure. But if an RPM
> is 10MB or 100MB, who really cares. The simpler you keep your
> packages, the more independent you keep your packages the less
> likely that you get into a situation you can't, or is extremely
> difficult, to reverse.
>
> If you choose to ignore my advice, you should use not only the
> package name, but also the version in your Requires for your drpm,
> that should keep you from applying a drpm to a box that is not at
> the appropriate version to accept the delta successfully.
>
> But seriously, keep it simple, it will improve your life in the
> long run, and admins who follow you will praise your good works
> rather than spitting and cursing at the mention of your name.
>
> -Scott
>
> On Jun 4, 2013, at 7:23 PM, "Narahari 'n' Savitha"
> <savithari at gmail.com <mailto:savithari at gmail.com>> wrote:
>
>> I built my vanilla Tomcat rpm and the %install section has
>>
>> mkdir -p $RPM_BUILD_ROOT/opt/
>> cp -R /home/virtual/rpmbuild/BUILD/apache-tomcat-7.0.37
>> $RPM_BUILD_ROOT/opt
>>
>> I also built the delta.rpm and I am in the process of tinkering
>> the %install section for that.
>> What I would like to do is
>>
>> a. check if apache-tomcat-7.0.37-vanilla is installed (this I can
>> do in the Requires section of the preamble, I presume the name is
>> the name of the rpm package)
>> b. enquire the rpm tool as to where the package
>> apache-tomcat-7.0.37-vanilla is installed ? not sure how to do this.
>> c. cd to the location the apache-tomcat-7.0.37-vanilla is
>> installed and backup a few files.
>> d. then do a cp -r from the BUILD folder to the target folder.
>>
>> Where should I put the code for all this ? I presume the
>> %install section ?
>> What all heavy lifting can I or should I do in the %install
>> section and is using macros a requirement or a good thing to do
>> kind of a thing ?
>>
>> Kindly help.
>>
>> -Narahari
>>
>>
>> On Mon, Jun 3, 2013 at 3:31 PM, Scott Plante
>> <splante at insightsys.com <mailto:splante at insightsys.com>> wrote:
>>
>> "Also, tomcat is not really built as in gcc or cc or whatever
>> aka no make or configure."
>>
>> Mostly true, however there is an optional native part, found
>> in the "[tomcat-root]/bin/commons-daemon-native.tar.gz" file.
>> If you're creating a Tomcat binary RPM it would be a good
>> idea to compile this, as it allows you to have Tomcat listen
>> on port 80/443 (or a port <1024) directly without running
>> Tomcat as root. You don't need this if you're running Tomcat
>> behind Apache HTTP, but for example WebRTC won't work
>> proxying through ajp.
>>
>> Scott
>> ------------------------------------------------------------------------
>> *From: *"Narahari 'n' Savitha" <savithari at gmail.com
>> <mailto:savithari at gmail.com>>
>> *To: *"Atlanta Linux Enthusiasts - Yes! We run Linux!"
>> <ale at ale.org <mailto:ale at ale.org>>
>> *Sent: *Sunday, June 2, 2013 10:02:11 PM
>> *Subject: *[ale] rpm's src vs binary and the confusion
>>
>>
>> Friends:
>>
>> I am building an rpm for Apache Tomcat version 7.0.37.
>>
>> Sorry to ask a lame question but what is the diff between src
>> rpm and regular rpm ?
>> (dont flame, I know I have read it but it confuses me when I
>> am building)
>>
>> Also, tomcat is not really built as in gcc or cc or whatever
>> aka no make or configure.
>>
>> So in the install section what should I be really doing ?
>> Spec file is here.
>>
>> http://pastebin.com/f6P64tSQ
>>
>> Also, if I have a custom name for the rpm I am building, what
>> macros or env variables are available in the %install section ?
>>
>> Regards,
>> -Narahari
>>
>>
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