Make path to /var/www/ood/apps apps directory easily configurable

[ericfranz]

Currently the knowledge of where these apps are located is duplicated between nginx_stage and the dashboard app.

As a result, while we could change the location of these apps in nginx_stage.yml the dashboard has the original paths hardcoded:

• dev:

  ondemand/apps/dashboard/app/apps/dev_router.rb

  Lines 28 to 30 in 3b10306

  	def self.base_path(owner: OodSupport::Process.user.name)
  	Configuration.dev_apps_root_path
  	end

• sys:

  ondemand/apps/dashboard/app/apps/sys_router.rb

  Lines 31 to 33 in 3b10306

  	def self.base_path
  	Pathname.new "/var/www/ood/apps/sys"
  	end

• usr:

  ondemand/apps/dashboard/app/apps/usr_router.rb

  Lines 59 to 84 in 3b10306

  	def self.base_path(owner: OodSupport::Process.user.name)
  	# ood
  	Pathname.new "/var/www/ood/apps/usr/#{owner}/gateway"
  	# dev
  	# Pathname.new Rails.root.join("data", "apps","usr", owner)
  	# awesim
  	# Pathname.new(Dir.home).join("awesim_shared_apps")
  	end
  	def self.owners
  	owners = []
  	# ood
  	target = Pathname.new("/var/www/ood/apps/usr")
  	owners = target.children(false).map(&:to_s) if target.directory? && target.executable? && target.readable?
  	# dev
  	# owners = Rails.root.join("data", "apps","usr").children(false).map(&:to_s)
  	# awesim
  	# owners = ["awe0011", "efranz", "jnicklas"]
  	owners
  	end

Removing this duplication would help.

Another approach would be to shift the scanning of apps users can launch to nginx_stage, generating the app configs dynamically like we generate the nginx_stage config.

┆Issue is synchronized with this Asana task by Unito

[Oglopf]

This issue should be labeled bug as we say the sys path can be configured in our docs, but it can't. We've also had a user bring this to our attention on the discourse and request that it get fixed.

https://discourse.openondemand.org/t/change-sys-apps-path/3425/3

Adding some tags to prioritize the work.