Intermittent coredns failure #3984
Description
What happened:
I am running KIND in Podman Desktop for Windows. I am deploying a pod with a single container running the IBM webMethods Edge Server (ibmwebmethods.azurecr.io/webmethods-edge-runtime:11.0.11). The container shows intermittent behavior. For some time, everything is working well, but sometimes it fails to connect to the webMethods control plane. In the log, it reports failures to resolve hostnames. I have found multiple errors in the logs of the two coredns pods, cf. attachment.
What you expected to happen:
The pod should be able to contact the control plane.
How to reproduce it (as minimally and precisely as possible):
Start a pod based on ibmwebmethods.azurecr.io/webmethods-edge-runtime:11.0.11.
Anything else we need to know?:
It is working well on minikube.
Environment:
- kind version: (use
kind version): kind v0.29.0 go1.24.2 windows/amd64 - Runtime info: (use
docker info,podman infoornerdctl info):
Client:
APIVersion: 5.5.2
Built: 1750781584
BuiltTime: Tue Jun 24 18:13:04 2025
GitCommit: e7d8226745ba07a64b7176a7f128e4ef53225a0e
GoVersion: go1.24.4
Os: windows
OsArch: windows/amd64
Version: 5.5.2
host:
arch: amd64
buildahVersion: 1.40.1
cgroupControllers:- cpuset
- cpu
- io
- memory
- hugetlb
- pids
- rdma
cgroupManager: cgroupfs
cgroupVersion: v2
conmon:
package: conmon-2.1.13-1.fc41.x86_64
path: /usr/bin/conmon
version: 'conmon version 2.1.13, commit: '
cpuUtilization:
idlePercent: 96.88
systemPercent: 1.09
userPercent: 2.03
cpus: 16
databaseBackend: sqlite
distribution:
distribution: fedora
variant: container
version: "41"
eventLogger: journald
freeLocks: 2042
hostname: THESSE
idMappings:
gidmap: null
uidmap: null
kernel: 6.6.87.2-microsoft-standard-WSL2
linkmode: dynamic
logDriver: journald
memFree: 4712808448
memTotal: 16055980032
networkBackend: netavark
networkBackendInfo:
backend: netavark
dns:
package: aardvark-dns-1.15.0-1.fc41.x86_64
path: /usr/libexec/podman/aardvark-dns
version: aardvark-dns 1.15.0
package: netavark-1.15.2-1.fc41.x86_64
path: /usr/libexec/podman/netavark
version: netavark 1.15.2
ociRuntime:
name: crun
package: crun-1.22-1.fc41.x86_64
path: /usr/bin/crun
version: |-
crun version 1.22
commit: 4de19b63a85efd9ea8503452179c371181750130
rundir: /run/crun
spec: 1.0.0
+SYSTEMD +SELINUX +APPARMOR +CAP +SECCOMP +EBPF +CRIU +LIBKRUN +WASM:wasmedge +YAJL
os: linux
pasta:
ex 6509 ecutable: /usr/bin/pasta
package: passt-0^20250611.g0293c6f-1.fc41.x86_64
version: |
pasta 0^20250611.g0293c6f-1.fc41.x86_64
Copyright Red Hat
GNU General Public License, version 2 or later
https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
remoteSocket:
exists: true
path: unix:///run/podman/podman.sock
rootlessNetworkCmd: pasta
security:
apparmorEnabled: false
capabilities: CAP_CHOWN,CAP_DAC_OVERRIDE,CAP_FOWNER,CAP_FSETID,CAP_KILL,CAP_NET_BIND_SERVICE,CAP_SETFCAP,CAP_SETGID,CAP_SETPCAP,CAP_SETUID,CAP_SYS_CHROOT
rootless: false
seccompEnabled: true
seccompProfilePath: /usr/share/containers/seccomp.json
selinuxEnabled: false
serviceIsRemote: true
slirp4netns:
executable: ""
package: ""
version: ""
swapFree: 4294967296
swapTotal: 4294967296
uptime: 0h 50m 53.00s
variant: ""
plugins:
authorization: null
log: - k8s-file
- none
- passthrough
- journald
network: - bridge
- macvlan
- ipvlan
volume: - local
registries:
search: - docker.io
store:
configFile: /usr/share/containers/storage.conf
containerStore:
number: 4
paused: 0
running: 4
stopped: 0
graphDriverName: overlay
graphOptions:
overlay.additionalImageStores:- /usr/lib/containers/storage
overlay.imagestore: /usr/lib/containers/storage
overlay.mountopt: nodev,metacopy=on
graphRoot: /var/lib/containers/storage
graphRootAllocated: 1081101176832
graphRootUsed: 9087844352
graphStatus:
Backing Filesystem: extfs
Native Overlay Diff: "false"
Supports d_type: "true"
Supports shifting: "true"
Supports volatile: "true"
Using metacopy: "true"
imageCopyTmpDir: /var/tmp
imageStore:
number: 4
runRoot: /run/containers/storage
transientStore: false
volumePath: /var/lib/containers/storage/volumes
version:
APIVersion: 5.5.2
BuildOrigin: Fedora Project
Built: 1750723200
BuiltTime: Tue Jun 24 02:00:00 2025
GitCommit: e7d8226745ba07a64b7176a7f128e4ef53225a0e
GoVersion: go1.23.10
Os: linux
OsArch: linux/amd64
Version: 5.5.2
- /usr/lib/containers/storage
- OS (e.g. from
/etc/os-release): Windows 11 - Kubernetes version: (use
kubectl version):
Client Version: v1.33.3
Kustomize Version: v5.6.0
Server Version: v1.33.1 - Any proxies or other special environment settings?: No