<div dir="ltr">The part that I am still missing is if we remove the need to manipulate an ordered list as other subsystems are added and removed how is the presence of the ordered list still an issue? I am sure we have other examples of ordered lists out there.<div><br></div><div>Darran.</div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr">On Tue, 27 Mar 2018 at 12:15 Alexey Loubyansky <<a href="mailto:alexey.loubyansky@redhat.com">alexey.loubyansky@redhat.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">On Tue, Mar 27, 2018 at 12:34 PM, Darran Lofthouse <span dir="ltr"><<a href="mailto:darran.lofthouse@redhat.com" target="_blank">darran.lofthouse@redhat.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div>Ok so lets switch this another way.</div><div><br></div><div>If the addition from other subsystems was to be eliminated is there still a provisioning issue?</div></div></blockquote><div><br></div></div></div></div><div dir="ltr"><div class="gmail_extra"><div class="gmail_quote"><div>The provisioning issue is related to the structure of the configuration model (to be more precise the representation of the resource in the domain management model since this is what is being manipulated). There are other examples of subsystems requiring configuration of other features, e.g. some subsystems may require specific socket-bindings. There is no problem with that from the provisioning perspective because the model allows to check whether the required socket-binding is already present in the config, whether its parameters need any adjustments and if the socket-binding is missing from the config it can be added.</div><div><br></div><div>Thanks,</div><div>Alexey</div></div></div></div><div dir="ltr"><div class="gmail_extra"><div class="gmail_quote"><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><div class="m_7245186885727396232h5"><div></div><br><div class="gmail_quote"><div dir="ltr">On Fri, 23 Mar 2018 at 20:52 Brian Stansberry <<a href="mailto:brian.stansberry@redhat.com" target="_blank">brian.stansberry@redhat.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">On Fri, Mar 23, 2018 at 12:56 PM, Darran Lofthouse <span dir="ltr"><<a href="mailto:darran.lofthouse@jboss.com" target="_blank">darran.lofthouse@jboss.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div class="gmail_quote"><span class="m_7245186885727396232m_-7488140712470423362m_-151495070846696298gmail-"><div dir="ltr">On Fri, 23 Mar 2018 at 17:50 Alexey Loubyansky <<a href="mailto:alexey.loubyansky@redhat.com" target="_blank">alexey.loubyansky@redhat.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">On Fri, Mar 23, 2018 at 6:20 PM, Farah Juma <span dir="ltr"><<a href="mailto:fjuma@redhat.com" target="_blank">fjuma@redhat.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">A solution to part of the problem mentioned in WFCORE-3596 that was discussed is to introduce the concept of named permission sets. In particular, instead of having a permission-mapping reference permissions, it would instead reference named permission-sets. This would allow the provisioning tool to be able to add/remove permissions to/from a default permission-set based on the presence/absence of a specific subsystem when generating the default configuration. However, as Alexey pointed out, this doesn't solve the problem of knowing which permission-mapping a permission-set should be added to when attempting to preserve user configuration changes for patching, version updates, etc. <br></div></blockquote><div><br></div></div></div></div><div dir="ltr"><div class="gmail_extra"><div class="gmail_quote"><div>Right. It does not change the permission-mappings, they remain to be a list of items with no identity. Which is the fundamental problem.</div></div></div></div></blockquote><div><br></div></span><div>But why is that a problem? I think that is the piece still missing.</div><div><br></div><div>By moving the list of the permissions into a single named resource the tooling no longer has a need to be performing the manipulation within the simple permission mapper so that can be left to the administrator to look after independently.</div></div></div></blockquote><div><br></div></div></div></div><div dir="ltr"><div class="gmail_extra"><div class="gmail_quote"><div>Is your question why is it a problem to give these things an identity? If so, I have the same question, although I don't think Alexey's the one to come up with the identity.</div><div><br></div><div>Or is your question why is not having an identity a problem? If so, is it correct to say that getting rid of this bit of wrongness is the problem:</div><div><br></div><div><a href="https://github.com/wildfly/wildfly-core/blob/master/elytron/src/main/resources/subsystem-templates/elytron.xml#L125" target="_blank">https://github.com/wildfly/wildfly-core/blob/master/elytron/src/main/resources/subsystem-templates/elytron.xml#L125</a></div><div><br></div><div>Basically right there elytron is speculatively providing configuration rightly owned by other subsystems. To do this correctly, each of those permissions should be part of the config established by other parts of the system. The provisioning tool is expected to do it correctly. And doing that requires some sort of identity for each item in the set. . Installing a feature should involve adding independent, identifiable chunks of config, not manipulating an attribute of some chunk of config owned by a different feature. <span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:small;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">Manipulating an attribute is not feasible and isn't correct.</span></div><div><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:small;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><br></span></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"></blockquote></div></div></div><div dir="ltr"><div class="gmail_extra"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div class="gmail_quote"><span class="m_7245186885727396232m_-7488140712470423362m_-151495070846696298gmail-"><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div class="gmail_extra"><div class="gmail_quote"><div><br></div><div>Thanks,</div><div>Alexey</div></div></div></div><div dir="ltr"><div class="gmail_extra"><div class="gmail_quote"><div><br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div>Thanks,</div><div>Farah</div></div><div class="m_7245186885727396232m_-7488140712470423362m_-151495070846696298gmail-m_1296326077637878153m_1352572413483716643HOEnZb"><div class="m_7245186885727396232m_-7488140712470423362m_-151495070846696298gmail-m_1296326077637878153m_1352572413483716643h5"><div class="gmail_extra"><br><div class="gmail_quote">On Fri, Mar 23, 2018 at 11:55 AM, Alexey Loubyansky <span dir="ltr"><<a href="mailto:alexey.loubyansky@redhat.com" target="_blank">alexey.loubyansky@redhat.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div>While this is addressed mainly to the Elytron team, it seems like we would appreciate opinions from other colleagues since we are basically stuck discussing possible ways to resolve <a href="https://issues.jboss.org/browse/WFCORE-3596" target="_blank">https://issues.jboss.org/browse/WFCORE-3596</a></div><div><br></div><div>The description in the jira is pretty brief assuming people know what that is about, since it's been raised before multiple times. Here is what it is about <span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:small;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">fundamentally</span>.</div><div><br></div><div>If a configuration model (of a subsystem or any other component) includes a list of configurable units (let's assume XML elements for simplicity) that don't have any identity (unique id/name/path/etc) this is a big problem for supporting patching and version updates preserving user configuration changes. Or simply customizing the default config model using a tool. By a big problem I mean it's simply not going to work reliably.</div><div><br></div><div>As a simple exercise that demonstrates the issue, imagine you have two configs each of which includes a list of these configurable units that have no identity. Now try to identify the difference between the two lists. Or merge them with one overwriting the other. Basically components w/o an identity can not be manipulated. You can only add them but not modify or even remove (unless their index in the list is a constant value of course).</div><div><br></div><div>I don't think I've seen any issue of this kind in our (WF/EAP) configs except for the Elytron's permission-mapping's. (If somebody knows such components please let me know).<br></div><div>If I misunderstand the Elytron config model or approaching this from a wrong angle, please let me know.</div><div><br></div><div>Question for the Elytron team: is the problem I am describing clear? Do you admit it as a problem?</div><div><br></div><div>Thanks,</div><div>Alexey</div></div>
</blockquote></div><br></div>
</div></div></blockquote></div></div></div></blockquote></span></div></div>
<br></blockquote></div></div></div><div dir="ltr"><div class="gmail_extra"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">_______________________________________________<br>
wildfly-dev mailing list<br>
<a href="mailto:wildfly-dev@lists.jboss.org" target="_blank">wildfly-dev@lists.jboss.org</a><br>
<a href="https://lists.jboss.org/mailman/listinfo/wildfly-dev" rel="noreferrer" target="_blank">https://lists.jboss.org/mailman/listinfo/wildfly-dev</a><br></blockquote></div></div></div><div dir="ltr"><div class="gmail_extra"><br><br clear="all"><div><br></div>-- <br><div class="m_7245186885727396232m_-7488140712470423362m_-151495070846696298gmail_signature"><div dir="ltr">Brian Stansberry<div>Manager, Senior Principal Software Engineer</div><div>Red Hat</div></div></div>
</div></div></blockquote></div></div></div></div>
</blockquote></div></div></div></blockquote></div>