| Summary: | Whereabouts IPAM CNI IPv6 addresses with single colon aren't properly converted to DNS-1123 name in OCP 4.5 | |||
|---|---|---|---|---|
| Product: | OpenShift Container Platform | Reporter: | Douglas Smith <dosmith> | |
| Component: | Networking | Assignee: | Douglas Smith <dosmith> | |
| Networking sub component: | multus | QA Contact: | Weibin Liang <weliang> | |
| Status: | CLOSED ERRATA | Docs Contact: | ||
| Severity: | high | |||
| Priority: | high | |||
| Version: | 4.6 | |||
| Target Milestone: | --- | |||
| Target Release: | 4.6.0 | |||
| Hardware: | Unspecified | |||
| OS: | Unspecified | |||
| Whiteboard: | ||||
| Fixed In Version: | Doc Type: | If docs needed, set a value | ||
| Doc Text: | Story Points: | --- | ||
| Clone Of: | ||||
| : | 1877065 (view as bug list) | Environment: | ||
| Last Closed: | 2020-10-27 16:38:59 UTC | Type: | Bug | |
| Regression: | --- | Mount Type: | --- | |
| Documentation: | --- | CRM: | ||
| Verified Versions: | Category: | --- | ||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | ||
| Cloudforms Team: | --- | Target Upstream Version: | ||
| Bug Depends On: | ||||
| Bug Blocks: | 1877065 | |||
Tested and verified in 4.6.0-0.nightly-2020-09-10-082657
[weliang@weliang ~]$ oc describe pod | grep fd00
"fd00:dead:beef::1"
"fd00:dead:beef::1"
Normal AddedInterface 3m56s multus Add net1 [fd00:dead:beef::1/64] from test/macvlan-bridge-whereabouts
"fd00:dead:beef::2"
"fd00:dead:beef::2"
Normal AddedInterface 2m34s multus Add net1 [fd00:dead:beef::2/64] from test/macvlan-bridge-whereabouts
"fd00:dead:beef::3"
"fd00:dead:beef::3"
Normal AddedInterface 2m28s multus Add net1 [fd00:dead:beef::3/64] from test/macvlan-bridge-whereabouts
"fd00:dead:beef::4"
"fd00:dead:beef::4"
Normal AddedInterface 2m23s multus Add net1 [fd00:dead:beef::4/64] from test/macvlan-bridge-whereabouts
"fd00:dead:beef::5"
"fd00:dead:beef::5"
Normal AddedInterface 2m17s multus Add net1 [fd00:dead:beef::5/64] from test/macvlan-bridge-whereabouts
"fd00:dead:beef::6"
"fd00:dead:beef::6"
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory (OpenShift Container Platform 4.6 GA Images), and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHBA-2020:4196 |
This particular problem was found and fixed in 4.6 during a feature enhancement, however, we didn't identify that this was still a problem in 4.5. Basically, when using any IPv6 address with a single colon, the CR name wouldn't be properly converted from IPv6 address into DNS-1123 name for the CR. ---------------------- Original report oc edit networks.operator.openshift.io cluster additionalNetworks: - name: test-network-1 namespace: dieter rawCNIConfig: '{ "cniVersion": "0.3.0", "name": "test-network-1", "type": "ipvlan", "master": "ens9", "mode": "l2", "ipam": { "type": "whereabouts", "range": "fd00:0:0:10:0:0:3:1-fd00:0:0:10:0:0:3:6/64" } , "log_file" : "/tmp/whereabouts.log", "log_level" : "debug"}' type: Raw Creates the network-attachment-definition with the correct range, but when creating the pod, I get following error: Error assigning IP: k8s create error: IPPool.whereabouts.cni.cncf.io "fd00:0:0:10--64" is invalid: metadata.name: Invalid value: "fd00:0:0:10--64": a DNS-1123 subdomain must consist of lower case alphanumeric characters, '-' or '.', and must start and end with an alphanumeric character (e.g. 'example.com', regex used for validation is '[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*')