Uploaded image for project: 'Maistra'
  1. Maistra
  2. MAISTRA-2646 curl from mesh2 to a imported mesh1 service is not working
  3. MAISTRA-2656

Fix missing DNS registry entries in istio-agent

    XMLWordPrintable

Details

    • Sub-task
    • Resolution: Done
    • Major
    • maistra-2.1.0
    • None
    • None
    • None
    • Sprint 9, Sprint 10, Sprint 11

    Description

      Istio-agent sidecar binary doesn't have the entries for the other mesh hosts.

      Here's the relevant log of the agent when I run the curl from the sleep container:

      oc -n mesh2-bookinfo exec -it sleep-5d54c5cfc9-wjw2m -c sleep -- curl -v ratings.mesh2-bookinfo.svc.mesh1-imports.local:9080

      $ oc logs sleep-5d54c5cfc9-wjw2m -c istio-proxy -f | grep -i dns
2021-09-09T17:50:11.551527Z	info	FLAG: --log_output_level="dns:debug,default:info"
2021-09-09T17:50:11.551776Z	info	Apply proxy config from env {"discoveryAddress":"istiod-fed-import.mesh2-system.svc:15012","proxyMetadata":{"ISTIO_META_DNS_CAPTURE":"true","PROXY_XDS_VIA_AGENT":"true"},"meshId":"mesh2.local"}
  ISTIO_META_DNS_CAPTURE: "true"
2021-09-09T17:50:11.614693Z	debug	dns	initialized DNS	search=[mesh2-bookinfo.svc.cluster.local svc.cluster.local cluster.local us-west-1.compute.internal] servers=[172.30.0.10:53]
2021-09-09T17:50:11.623954Z	info	dns	Starting local udp DNS server at localhost:15053
2021-09-09T17:50:11.624019Z	info	dns	Starting local tcp DNS server at localhost:15053
2021-09-09T17:50:11.895118Z	debug	dns	updated lookup table with 78 hosts
2021-09-09T17:50:12.636335Z	debug	dns	updated lookup table with 78 hosts
2021-09-09T17:51:25.370334Z	debug	dns	updated lookup table with 78 hosts


2021-09-09T17:55:56.252492Z	debug	dns	request ;; opcode: QUERY, status: NOERROR, id: 44918
	protocol=udp edns=false id=9c9bc30c-8796-45a7-b342-a8155bc6a966
2021-09-09T17:55:56.252734Z	debug	dns	request ;; opcode: QUERY, status: NOERROR, id: 44502
	protocol=udp edns=false id=cef3a252-0540-4fb8-aa4d-356ac8bb9b29
2021-09-09T17:55:56.253903Z	debug	dns	response for hostname "ratings.mesh2-bookinfo.svc.mesh1-imports.local.mesh2-bookinfo.svc.cluster.local." (found=false): ;; opcode: QUERY, status: NXDOMAIN, id: 44918
cluster.local.	5	IN	SOA	ns.dns.cluster.local. hostmaster.cluster.local. 1631209812 7200 1800 86400 5
; EDNS: version 0; flags: ; udp: 512
	protocol=udp edns=false id=9c9bc30c-8796-45a7-b342-a8155bc6a966
2021-09-09T17:55:56.253991Z	debug	dns	response for hostname "ratings.mesh2-bookinfo.svc.mesh1-imports.local.mesh2-bookinfo.svc.cluster.local." (found=false): ;; opcode: QUERY, status: NXDOMAIN, id: 44502
cluster.local.	5	IN	SOA	ns.dns.cluster.local. hostmaster.cluster.local. 1631209812 7200 1800 86400 5
; EDNS: version 0; flags: ; udp: 512
	protocol=udp edns=false id=cef3a252-0540-4fb8-aa4d-356ac8bb9b29
2021-09-09T17:55:56.254243Z	debug	dns	request ;; opcode: QUERY, status: NOERROR, id: 36968
	protocol=udp edns=false id=350ce38c-64f4-428a-8e1f-aa18d3ed39cc
2021-09-09T17:55:56.254690Z	debug	dns	response for hostname "ratings.mesh2-bookinfo.svc.mesh1-imports.local.svc.cluster.local." (found=false): ;; opcode: QUERY, status: NXDOMAIN, id: 36968
cluster.local.	5	IN	SOA	ns.dns.cluster.local. hostmaster.cluster.local. 1631209812 7200 1800 86400 5
; EDNS: version 0; flags: ; udp: 512
	protocol=udp edns=false id=350ce38c-64f4-428a-8e1f-aa18d3ed39cc
2021-09-09T17:55:56.254760Z	debug	dns	request ;; opcode: QUERY, status: NOERROR, id: 36622
	protocol=udp edns=false id=46e0f566-9b2f-4c23-96ad-b4f53487dc0e
2021-09-09T17:55:56.255190Z	debug	dns	response for hostname "ratings.mesh2-bookinfo.svc.mesh1-imports.local.svc.cluster.local." (found=false): ;; opcode: QUERY, status: NXDOMAIN, id: 36622
cluster.local.	5	IN	SOA	ns.dns.cluster.local. hostmaster.cluster.local. 1631209812 7200 1800 86400 5
; EDNS: version 0; flags: ; udp: 512
	protocol=udp edns=false id=46e0f566-9b2f-4c23-96ad-b4f53487dc0e
2021-09-09T17:55:56.255418Z	debug	dns	request ;; opcode: QUERY, status: NOERROR, id: 32389
	protocol=udp edns=false id=c03f3d48-7cdc-45da-9915-6a65843a69e5
2021-09-09T17:55:56.255551Z	debug	dns	request ;; opcode: QUERY, status: NOERROR, id: 31972
	protocol=udp edns=false id=dbe0c6e5-fe0d-44ad-8250-cf0f4281b473
2021-09-09T17:55:56.255971Z	debug	dns	response for hostname "ratings.mesh2-bookinfo.svc.mesh1-imports.local.cluster.local." (found=false): ;; opcode: QUERY, status: NXDOMAIN, id: 32389
cluster.local.	5	IN	SOA	ns.dns.cluster.local. hostmaster.cluster.local. 1631209812 7200 1800 86400 5
; EDNS: version 0; flags: ; udp: 512
	protocol=udp edns=false id=c03f3d48-7cdc-45da-9915-6a65843a69e5
2021-09-09T17:55:56.256040Z	debug	dns	response for hostname "ratings.mesh2-bookinfo.svc.mesh1-imports.local.cluster.local." (found=false): ;; opcode: QUERY, status: NXDOMAIN, id: 31972
cluster.local.	5	IN	SOA	ns.dns.cluster.local. hostmaster.cluster.local. 1631209812 7200 1800 86400 5
; EDNS: version 0; flags: ; udp: 512
	protocol=udp edns=false id=dbe0c6e5-fe0d-44ad-8250-cf0f4281b473
2021-09-09T17:55:56.256419Z	debug	dns	request ;; opcode: QUERY, status: NOERROR, id: 12111
	protocol=udp edns=false id=72bc6e0d-6d68-4975-8f3e-b1e067251923
2021-09-09T17:55:56.256570Z	debug	dns	request ;; opcode: QUERY, status: NOERROR, id: 11751
	protocol=udp edns=false id=8ce315b2-1fd3-45f5-b2e3-db9c611acd71
2021-09-09T17:55:56.258799Z	debug	dns	response for hostname "ratings.mesh2-bookinfo.svc.mesh1-imports.local.us-west-1.compute.internal." (found=false): ;; opcode: QUERY, status: NXDOMAIN, id: 12111
; EDNS: version 0; flags: ; udp: 512
	protocol=udp edns=false id=72bc6e0d-6d68-4975-8f3e-b1e067251923
2021-09-09T17:55:56.258876Z	debug	dns	response for hostname "ratings.mesh2-bookinfo.svc.mesh1-imports.local.us-west-1.compute.internal." (found=false): ;; opcode: QUERY, status: NXDOMAIN, id: 11751
; EDNS: version 0; flags: ; udp: 512
	protocol=udp edns=false id=8ce315b2-1fd3-45f5-b2e3-db9c611acd71
2021-09-09T17:55:56.259020Z	debug	dns	request ;; opcode: QUERY, status: NOERROR, id: 62345
	protocol=udp edns=false id=c5d765e1-6a50-49f5-90f0-d03ac861a2d1
2021-09-09T17:55:56.259234Z	debug	dns	request ;; opcode: QUERY, status: NOERROR, id: 62116
	protocol=udp edns=false id=d680319a-a0c1-48fc-9e21-41d5df4b4ca0
2021-09-09T17:55:56.259916Z	debug	dns	response for hostname "ratings.mesh2-bookinfo.svc.mesh1-imports.local." (found=false): ;; opcode: QUERY, status: NXDOMAIN, id: 62345
; EDNS: version 0; flags: ; udp: 512
	protocol=udp edns=false id=c5d765e1-6a50-49f5-90f0-d03ac861a2d1
2021-09-09T17:55:56.260008Z	debug	dns	response for hostname "ratings.mesh2-bookinfo.svc.mesh1-imports.local." (found=false): ;; opcode: QUERY, status: NXDOMAIN, id: 62116
; EDNS: version 0; flags: ; udp: 512
	protocol=udp edns=false id=d680319a-a0c1-48fc-9e21-41d5df4b4ca0
2021-09-09T17:56:26.353953Z	debug	dns	updated lookup table with 78 hosts

      Attachments

        Activity

          People

            mluksa@redhat.com Marko Luksa
            jsantana@redhat.com Jonh Wendell
            Votes:
            0 Vote for this issue
            Watchers:
            2 Start watching this issue

            Dates

              Created:
              Updated:
              Resolved: