Ptp Operator, runs in openshift-ptp namespace, manages cluster wide PTP configuration. It offers PtpOperatorConfig and PtpConfig CRDs and creates linuxptp daemon to apply node specific PTP config.
Upon deployment of PTP Operator, it automatically creates a default custom resource of PtpOperatorConfig kind which contains a configurable option daemonNodeSelector, it is used to specify which nodes linuxptp daemon shall be created on. The daemonNodeSelector will be applied to linuxptp daemon DaemonSet nodeSelector field and trigger relaunching of linuxptp daemon. Ptp Operator only recognizes default PtpOperatorConfig, use oc edit PtpOperatorConfig default -n openshift-ptp to update the daemonNodeSelector.
$ oc get ptpoperatorconfigs.ptp.openshift.io default -n openshift-ptp -o yaml
apiVersion: v1
items:
- apiVersion: ptp.openshift.io/v1
kind: PtpOperatorConfig
metadata:
creationTimestamp: "2019-10-28T06:53:09Z"
generation: 3
name: default
namespace: openshift-ptp
resourceVersion: "2356742"
selfLink: /apis/ptp.openshift.io/v1/namespaces/openshift-ptp/ptpoperatorconfigs/default
uid: d7286542-34bd-4c79-8533-d01e2b25953e
spec:
daemonNodeSelector: {}
kind: List
metadata:
resourceVersion: ""
selfLink: ""
PTP Operator supports fast event publisher for events such as PTP state change, os clock out of sync, clock class change and port failure. Event publisher is enabled by deploying PTP operator with cloud events framework (based on O-RAN API specifications). The events are published via HTTP or AMQP transport and available for local subscribers.
$ oc edit ptpoperatorconfigs.ptp.openshift.io default -n openshift-ptp
apiVersion: v1
items:
- apiVersion: ptp.openshift.io/v1
kind: PtpOperatorConfig
metadata:
creationTimestamp: "2019-10-28T06:53:09Z"
generation: 4
name: default
namespace: openshift-ptp
resourceVersion: "2364095"
selfLink: /apis/ptp.openshift.io/v1/namespaces/openshift-ptp/ptpoperatorconfigs/default
uid: d7286542-34bd-4c79-8533-d01e2b25953e
spec:
ptpEventConfig:
enableEventPublisher: true
transportHost: "http://ptp-event-publisher-service.openshift-ptp.svc.cluster.local:9043"
# For AMQP transport, transportHost: "amqp://amq-router.amq-router.svc.cluster.local"
daemonNodeSelector:
node-role.kubernetes.io/worker: ""
kind: List
metadata:
resourceVersion: ""
selfLink: ""
PtpConfig CRD is used to define linuxptp configurations and to which node these
linuxptp configurations shall be applied.
The Spec of CR has two major sections.
The first section profile contains interface, ptp4lOpts, phc2sysOpts and ptp4lConf options,
the second recommend defines profile selection logic.
PTP operator supports T-BC and Ordinary clock which can be configured via ptpConfig
NOTE: following ptp4l/phc2sys opts required when events are enabled
ptp4lOpts: "-2 -s --summary_interval -4"
phc2sysOpts: "-a -r -m -n 24 -N 8 -R 16"
apiVersion: ptp.openshift.io/v1
kind: PtpConfig
metadata:
name: ordinary-clock-ptpconfig
namespace: ptp
spec:
profile:
- name: "profile1"
interface: "enp134s0f0"
ptp4lOpts: "-s -2"
phc2sysOpts: "-a -r"
recommend:
- profile: "profile1"
priority: 4
match:
- nodeLabel: "node-role.kubernetes.io/worker"
NOTE: following ptp4l/phc2sys opts required when events are enabled
ptp4lOpts: "-2 --summary_interval -4"
phc2sysOpts: "-a -r -m -n 24 -N 8 -R 16"
apiVersion: ptp.openshift.io/v1
kind: PtpConfig
metadata:
name: boundary-clock-ptpconfig
namespace: ptp
spec:
profile:
- name: "profile1"
ptp4lOpts: "-s -2"
phc2sysOpts: "-a -r"
ptp4lConf: |
[ens7f0]
masterOnly 0
[ens7f1]
masterOnly 1
[ens7f2]
masterOnly 1
recommend:
- profile: "profile1"
priority: 4
match:
- nodeLabel: "node-role.kubernetes.io/worker"
apiVersion: ptp.openshift.io/v1
kind: PtpConfig
metadata:
name: event-support-ptpconfig
namespace: ptp
spec:
profile:
- name: "profile1"
...
...
......
ptpClockThreshold:
holdOverTimeout: 24 # in secs
maxOffsetThreshold: 100 #in nano secs
minOffsetThreshold: 100 #in nano secs
recommend:
- profile: "profile1"
priority: 4
match:
- nodeLabel: "node-role.kubernetes.io/worker"
apiVersion: ptp.openshift.io/v1
kind: PtpConfig
metadata:
name: suppress-logs-ptpconfig
namespace: ptp
spec:
profile:
- name: "profile1"
...
...
......
ptpSettings:
stdoutFilter: "^.*delay filtered.*$"
logReduce: "true"
recommend:
- profile: "profile1"
priority: 4
match:
- nodeLabel: "node-role.kubernetes.io/worker"
In above examples, profile1 will be applied by linuxptp-daemon to nodes labeled with node-role.kubernetes.io/worker.
xxx-ptpconfig CR is created with PtpConfig kind. spec.profile defines profile named profile1 which contains interface (enp134s0f0) to run ptp4l process on, ptp4lOpts (-s -2) sysconfig options to run ptp4l process with and phc2sysOpts (-a -r) to run phc2sys process with. spec.recommend defines priority (lower numbers mean higher priority, 0 is the highest priority) and match rules of profile profile1. priority is useful when there are multiple PtpConfig CRs defined, linuxptp daemon applies match rules against node labels and names from high priority to low priority in order. If any of nodeLabel or nodeName on a specific node matches with the node label or name where daemon runs, it applies profile on that node.
To install PTP Operator:
$ make deploy
To un-install:
$ make undeploy
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