Wouldn't adding "(stage\.)?" to each host-alias-regexp and changing the
host-name to regexp allow it to work as you want it? For example:
<host regexp="(stage\.)?latencyzero.com" root-directory="/lz/var/www/
com/latencyzero">
<host-alias-regexp>^tycho.(stage\.)?latencyzero.com[\.]?$</host-
alias-regexp>
<host-alias-regexp>^(www\.)?(stage\.)?latencyzero.com[\.]?$</host-
alias-regexp>
<web-app id="/" document-directory="www"></webapp>
</host>
On Fri, Jan 17, 2014 at 3:18 PM, Rick Mann <rm...@latencyzero.com> wrote:
>
> On Jan 17, 2014, at 06:05 , Paul Cowan <co...@caucho.com> wrote:
>
> >
> > On Jan 16, 2014, at 4:32 PM, Rick Mann <rm...@latencyzero.com> wrote:
> >
> >> I'm trying to update a virtual server that runs a handful of webapps in
> Resin. The old machine was "tycho.latencyzero.com" and a bunch of DNS
> entries point to it. The web apps are configured to respond to those
> varying hostnames. The new machine temporarily has the name "
> stage.latencyzero.com."
> >>
> >> I copied everything from the old machine to the new, including the
> resin config file. Obviously, I can't just go to "stage.latencyzero.com",
> because resin has no idea which webapp I really want.
> >>
> >> Is there any way to configure resin to rewrite a request with a host
> like "foo.bar.latencyzero.com.stage.latencyzero.com" into a request for
> the webapp that responds to "foo.bar.latencyzero.com," while keeping the
> actual hostname intact for the purposes of rendering links in the pages,
> etc.?
> >
> > Hi Rick,
> >
> > I'm not exactly understanding what you want to do, but it sounds like I
> a similar situation I had on one of my sites. This configuration below is
> what I used. The new real host is listed first in resin.xml, then the
> default host id="" with host-alias * will catch all, and the redirect regex
> will redirect to the new site while appending the requested URI.
> >
> > <host id="foo" root-directory="hosts/foo">
> > <host-alias-regexp>.*foo.com</host-alias-regexp>
> > …
> > </host>
> >
> > <host id="" root-directory="hosts/default">
> > <host-alias>*</host-alias>
> > <web-app id="/" root-directory="webapps/ROOT">
> > <resin:Redirect regexp="(.*)" target="http://www.foo.com$1"/>
> > <resin:Redirect regexp="(.*)" target="https://www.foo.com$1";>
> > <resin:IfSecure value="true"/>
> > </resin:Redirect>
> > </web-app>
> > </host>
> >
> > Hope this helps,
>
> Hmm, not sure. Basically, I have entries in resin.xml on machine "
> tycho.latencyzero.com" like this:
>
> <host host-name="latencyzero.com"
> root-directory="/lz/var/www/com/latencyzero">
> <host-alias-regexp>^tycho.latencyzero.com
> [\.]?$</host-alias-regexp>
> <host-alias-regexp>^(www\.)?latencyzero.com
> [\.]?$</host-alias-regexp>
> <web-app id="/" document-directory="www"></webapp>
> </host>
>
> <host id="comics\.roderickmann\.org\.?"
> root-directory="/lz/var/www/org/roderickmann/comics">
> <host-name>comics.roderickmann.org</host-name>
> <web-app id="/" document-directory="."></webapp>
> </host>
>
> <host host-name="www.roderickmann.org"
> root-directory="/lz/var/www/org/roderickmann/www">
> <host-alias-regexp>^(www\.)?roderickmann.org
> [\.]?$</host-alias-regexp>
> <host-alias-regexp>^(www\.)?rickmann.org[\.]?$</host-alias-regexp>
> <web-app id="/" document-directory="."></webapp>
> </host>
>
> <host host-name="mgfb.roderickmann.org"
> root-directory="/lz/var/www/org/roderickmann/mgfb">
> <host-alias-regexp>^mgfb\.roderickmann.org
> [\.]?$</host-alias-regexp>
> <host-alias-regexp>^blog\.roderickmann.org
> [\.]?$</host-alias-regexp>
> <web-app id="/" document-directory="."></webapp>
> </host>
>
> I have DNS entries for all of the above that are all CNAMEs to
> tycho.latencyzero.com.
>
> I want to move all of those apps to a new machine (upgrading hardware and
> OS), but I want to test it first. The machine is called
> stage.latencyzero.com, and I need to make new DNS entries for each webapp
> (perhaps adding "stage" to each name, or something). The most
> straightforward thing would be simply to modify each name to add "stage" to
> them, but then when I decide to make the new machine permanent, and change
> all the old DNS entries to point to the new IP address, I'd have to modify
> the entries.
>
> Or I could simply add host-aliases for all the new names.
>
> But I was hoping there'd be a trick so that I only have to modify one
> line, and each of the host entries would pick it up. I realize that might
> require me to modify all the entries once (as you did with your redirects).
> But once I do this once, it should work for similar changes in the future.
>
> One thing I need to preserve: if I'm hitting one of my webapps through the
> new name (e.g. "stage.mgfb.roderickmann.org" or whatever), when code in
> the webapp uses the host name to render URIs, it needs to use that same
> hostname, so that links point to the right place, and not back to the old
> instance.
>
> All this discussion, of course, has taken longer than it would have to
> simply modify the entries a couple times, but I was curious.
>
> Thanks,
> Rick
>
>
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