Questions about deployment about argus

[johnseekins]

Things I've answered for myself by digging in to code and searching old (closed) tickets:

When running the exec.war, it appears that Arugs isn't seeing the argus.properties file I've set. Is this expected behavior?
Yes. Based on #476, there are multiple config settings we have to add to keep those warnings from firing. This is not documented. (#476 also has some basic config file examples that the rest of the documentation is sorely lacking.)

Does it matter if we use tomcat7 or tomcat8? Your internal stuff seems to imply tomcat7, but the docs don't indicate.
Everything I've found indicates we must use tomcat7. This is not documented.

How do we actually set argus.config.public.location or argus.config.private.location in tomcat? I assume something in CATALINA_OPTS?
In Debian/Ubuntu, we can edit /etc/default/tomcat7 and add something akin to JAVA_OPTS="-Djava.awt.headless=true -XX:+UseConcMarkSweepGC -Dargus.config.public.location=/etc/argus/argus.properties -Xrunjdwp:transport=dt_socket,address=5005,server=y,suspend=n" to point to a file in /etc/argus/argus.properties and also configure other (apparently) recommended arguments. While this is also not documented, I understand configs would differ based on deployment patterns.

Web UI

In the case of WebServices (the tomcat app) we can set tomcat configs to change the port. In the case of the web UI, we can use apache/nginx to host the compiled dist folder and set whatever port we'd like. An example apache2 config:

LoadModule proxy_module modules/mod_proxy.so
LoadModule proxy_http_module modules/mod_proxy_http.so
<VirtualHost *:8090> 
  #ProxyPreserveHost Off
  #ProxyRequests Off
  ServerName $(hostname)
  #ServerAlias example.com
  DocumentRoot /var/www/argusweb
  #Alias "/argusws" 
  Header set Access-Control-Allow-Origin "*"
  ProxyPass /argusws  http://localhost:8080/argusws
  ProxyPassReverse /argusws http://localhost:8080/argusws
</VirtualHost>

In oder for this to work completely, we have to also proxy data for the API through apache/nginx.

[johnseekins]

New question list:

• Service Workers/Clients

  • Again, there's no real documentation around these. What is the base expectation of service workers for a functioning system?
  • There's no list I could find (without delving into source code) of what functional worker "types" might be.

• General

  • Your documentation around base properties does not clarify what settings belong in files like cache.properties, mq.properties, or argus.properties. In particular, what config options actually exist and can be set?
  • Again, by reading through some examples from your docker builds, I've determined some settings that belong in argus.properties, but I'm unclear on what other settings might be there. Any guides on what nobs we can actually turn?
  • Redis is mentioned frequently as recommended as a cache, and I'd love to use it, but our Redis cluster has AUTH on it, and there doesn't appear to be a way to add a password to the config for Redis. Any solution for this?

• Kafka connection

  • There's no documentation around what topics are needed for Kafka usage to function. As we don't like to enable auto topic creation, what topics are actually needed?

• Web UI

  • [This commit] (d797bf1) completely breaks access to the alerts page in the UI. Can this be reverted? Or at least can the change be explained?