On Sun, Nov 24, 2024 at 4:53 PM Amit Pande <amit.pa...@veritas.com.invalid> wrote: > > Though it's super late, thought of sharing using JMX to get the application > deployment status. > > https://github.com/amitlpande/java-utils/blob/master/ApplicationeploymentCheckerValve.java > https://github.com/amitlpande/java-utils/blob/master/server.xml > > Appreciate reviews/comments.
I didn't really notice the original email. However, there's already a valve for that in Tomcat: https://github.com/apache/tomcat/blob/main/java/org/apache/catalina/valves/HealthCheckValve.java Rémy > Thanks, > Amit > > -----Original Message----- > From: Bruno Melloni <x.tomc...@melloni.com> > Sent: Saturday, September 30, 2023 8:32 AM > To: users@tomcat.apache.org > Subject: [External] Re: Best way to *programmatically* detect that all > webapps are fully deployed and running? > > > CAUTION: This email originated from outside the organization. Do not click > links or open attachments unless you recognize the sender and know the > content is safe. If you believe this is a phishing email, use the Report to > Cybersecurity icon in Outlook. > > > > Thanks, > > * I really like the idea of either using JMX (although I am not yet > familiar with it) or always implementing a health check endpoint for > each REST service. > * What would I use to query the list of *all* webapps (already up and > running or not) on the tomcat server? > > B. > > On 9/30/2023 7:42 AM, Mark Thomas wrote: > > On 29/09/2023 20:20, Bruno Melloni wrote: > >> On a tomcat server I have a number of REST services deployed as WARs. > >> There are interdependencies and even applications on other servers > >> that call them, so I really don't want to start calling services > >> after starting Tomcat until every single webapp is fully up and running. > >> > >> Ideally, I would like to do it*programmatically*. > >> > >> QUESTIONS > >> > >> * Is there a REST, other kind of API that I can call or a library > >> that > >> I can use? > > > > You could check the status of each application via JMX. > > > >> * Is there a known best practice on how to accomplish what I am > >> looking for? Perhaps a third party library that does the job? > > > > Nothing comes to mind. > > > >> Things I know I can try, but none is an ideal solution: > >> > >> * Manually look at the logs. > >> * Manually look at the Tomcat Application Management page. > >> * Programmatically call the Tomcat Application Management page and > >> scrape the information I need from it. > >> * Scour through the code of the Tomcat Application Management page > >> and > >> replicate the pieces that I need, for example someone mentioned > >> in a > >> forum that I can look at > >> org.apache.catalina.manager.ManagerServlet.isDeployed(String name) > >> to find out whether a webapp has been deployed or not. > > > > If you are going the bespoke route, I'd suggest a health check / > > status endpoint for each app and call them in turn. It could easily be > > a standard component you deploy as part of each application. > > > > Mark > > > > --------------------------------------------------------------------- > > 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 --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
