I think this is where you need to wrap your apps into Docker images :) See this base image for example: https://hub.docker.com/r/atomgraph/letsencrypt-tomcat It configures server.xml by using an XSLT stylesheet and environmental parameters: https://github.com/AtomGraph/letsencrypt-tomcat/blob/master/entrypoint.sh#L134
And this image extends it and adds the webapp (as ROOT) in a two-stage build: https://github.com/AtomGraph/LinkedDataHub/blob/master/Dockerfile#L139 Hope it helps. On Wed, Feb 24, 2021 at 12:45 AM Jerry Malcolm <techst...@malcolms.com> wrote: > > The server solution I am developing is split across multiple Amazon Web > Services EC2 instances. They all use the same TC WAR images. But each > server handles a different portion of the functionality.... > aaa.mydomain.com is called for one set of function, and bbb.mydomain.com > is called for another set of function. This is not load balancing the > same server. It's two separate TC "hosts" with two different server > names, but the same code base. > > It hugely simplifies maintenance if I can create one EC2 server image > (AWS AMI) and clone it to both aaa.mydomain and bbb.mydomain servers. > But the one issue is the TC configuration. The TC host name on aaa > needs to be configured as aaa.mydomain.com and bbb TC host name needs to > be configured as bbb.mydomain.com. > > I figure the brute force method is to clone the AMI to both and then > scp/ftp one TC config directory to aaa and a different TC config > directory to bbb. That will work. But in my mind it's not elegant, and > until I write automation scripts, it requires manual intervention. > > This may be a short thread if you say that's the way to do it. Fine. > But I do want to ask if there's any better ways to do this that I'm not > aware of, such as using RDNS or something at TC boot to identify if I'm > aaa or bbb based on my ip address and then boot the appropriate Tomcat > config accordingly. Ok, maybe I'm just blue skying.... But I would > like a few opinions from people a lot closer to this area than I am. > > One other fly in the ointment is that a few of the hosts currently have > light activity, but may grow. So in a couple of cases, I have multiple > virtual TC hosts (ccc.mydomain, ddd.mydomain, and eee.mydomain) on one > single EC2 instance allowing for the capability to split any one of > those out to its own EC2 instance in the future as needed. > > So EC2-a has aaa, EC2-b has bbb, and EC2-c has ccc, ddd, and eee hosts. > But again, all of TC hosts run the same WAR packages. > > Thanks. > > Jerry > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
