vert.x dnsresolver does not work in che

[maxandersen]

if you run vert.x without use of fmp on openshift - need to set Dvertx.disableDnsResolver=true to make it work on che or in any other IDE using pods.

possible fixes:
change https://github.com/redhat-developer/rh-che/blob/master/assembly/fabric8-stacks/src/main/resources/stacks.json#L476 to have this flag set

OR

change booster pom's to have it set for vertx:run

OR

change the booster to have a main to set the flag early

[maxandersen]

/cc @qodfathr and @slemeur - for you awareness; i put p0 on it since without it you can actually use http api's from outside the openshift cluster when doing vert.x apps. Let me know if agree/disagree.

[ibuziuk]

seems relevant to add this flag to command if it does not have side effects.
Or is it planned to have a fix from quickstart side ? there is already one update pending for quickstart - #2988 (comment)

[maxandersen]

@cescoffier what do you guys prefer ? seems fixing it in the pom.xml would be the best/most complete option ?

but if not then lets fix it in the stacks. And yes @ibuziuk it does not have any sideeffects as far as we know except actually making it work reliably ;)

[ibuziuk]

@cescoffier we are going to make rollout (hopefully last before summit) on prod tomorrow, so please let me know if we should update the command

[cescoffier]

I would recommend disabling the async DNS resolver in Che. So yes updating the command would work and is probably the best approach.

[ibuziuk]

@cescoffier ok, lemme provide PR with command update.
Could you please tell if any more quickstart updates are planned before summit ? each update could potentiallyintroduce subtle bugs and might require rebuilding our stacks. So, please give me a heads-up about this

[ibuziuk]

PR is sent redhat-developer/rh-che#662

[ibuziuk]

PR for rh-che is merged - should be soon on prod-preview
Also send a PR to upstream - eclipse-che/che#9611

[ibuziuk]

@maxandersen @cescoffier @slemeur fix is available on prod:

are you ok to close ?

[cescoffier]

Ok for me