https://github.com/apache/trafficcontrol/pull/2904
On 10/3/18, 12:25 PM, "Dewayne Richardson" <[email protected]> wrote: Stating the obvious for posterity, but what is the PR link? -Dew On Wed, Oct 3, 2018 at 8:47 AM Gelinas, Derek <[email protected]> wrote: > All, > > I’ve put a PR together to add support for single-layer CDNs. Currently, > edge and mid cache roles are basically hardwired into the code, so that > when a parent.config file is generated, the rules for edges and mids are > always the same. This is fine if you are only using edges and mids, but > not so much if you’ve got edges only. MSO is completely unsupported in a > config like this, and the parent.config looks like an edge config, with > each remap listed without parents. This is incorrect. > > What my PR does is actually very simple. Rather than look at the cache > type at the various stages of the parent config generation, we look at the > parent cachegroup types. If both parent cachegroups are either ORG type or > unassigned, then $is_top_level is set to 1 (default is 0) and the variable > is passed to the various subroutines that parent_dot_config uses to > generate data. These subroutines have been exclusive to parent_dot_config > since the scope change a while back, so this change does not affect any > other subs. From there, all decisions about generating configuration data > are based on whether or not the cache is a top level cache. > > With this addition we will be able to properly generate parent configs for > edge-only CDNs, as well as support multisite. A PR is in place marked as > do not merge to allow review. I intend to add some documentation changes > and do some heavy testing before I will pursue merging. > > Derek > > >
