Christopher Tubbs created ACCUMULO-4739:
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Summary: Make 3rd party web resources (js, css) location
configurable
Key: ACCUMULO-4739
URL: https://issues.apache.org/jira/browse/ACCUMULO-4739
Project: Accumulo
Issue Type: Task
Components: monitor
Reporter: Christopher Tubbs
Assignee: Michael Miller
Priority: Blocker
Fix For: 2.0.0
Currently, in the new monitor for 2.0 (after ACCUMULO-3005), some 3rd party web
resources are accessed via an external CDN. This is suitable in many cases, but
could be problematic for client browsers not currently connected to the
internet or with a cached copy of the resources from the CDN.
These resources include bootstrap and jquery. Flot is also a 3rd party
resource, but is currently bundled with Accumulo and served by the monitor.
The location of these resources should be made configurable, so that they can
be bundled with, and served by, the Accumulo monitor instead of a
internet-based CDN. Making the locations configurable also makes it possible
for users to update, if there's a bug in a particular version of jquery that
the administrator wishes to avoid, or they want to use a different bootstrap
theme, for example.
Any new configuration option added to support making these configurable should
be capable of supporting an arbitrary number of script and stylesheet
resources, and possibly other resource types, as well as any accompanying
integrity/crossorigin attributes for CDN access (see
server/monitor/src/main/resources/templates/default.ftl for current values).
Also, I think the default value should be to point to the CDN, and not the
locally bundled and served resources, so that the browser can take advantage of
any caching for these commonly used resources. This would allow us to achieve
ACCUMULO-2983 by stopping bundling these third party resources, but still
supporting bundling, if needed.
To complete this issue, we basically need 2 things:
# Ensure monitor serves (to a predictable location) whatever arbitrary static
resources it finds on the class path (so users can bundle their own static
resources), and
# Ensure resources are configurable to point to the served versions or versions
in a CDN.
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