matzew

{"level":"error","ts":"2020-04-03T11:56:12.512Z","logger":"mt-broker-controller","caller":"namespace/reconciler.go:195","msg":"returned an error","knative.dev/traceid":"65900ed8-0a9a-481b-95f0-73500d6e68e6","knative.dev/key":"default","targetMethod":"ReconcileKind","error":"broker: brokers.eventing.knative.dev \"default\" is forbidden: cannot set blockOwnerDeletion if an ownerReference refers to a resource you can't set finalizers on: RBAC: clusterrole.rbac.authorization.k8s.io \"knative-eventing-channel-broker-controller\" not found, <nil>","stacktrace":"knative.dev/eventing/vendor/knative.dev/pkg/client/injection/kube/reconciler/core/v1/namespace.(*reconcilerImpl).Reconcile\n\tknative.dev/eventing/vendor/knative.dev/pkg/client/injection/kube/reconciler/core/v1/namespace/reconciler.go:195\nknative.dev/eventing/vendor/knative.dev/pkg/controller.(*Impl).processNextWorkItem\n\tknative.dev/eventing/vendor/knative.dev/pkg/controller/controller.go:394\nknative.dev/eventing/vendor/knative.dev/pkg/controller.(*Imp

matzew

{"avg":7.5,"count":235,"icon":"🌳🌳🌳","latitude":59.9,"longitude":10.8,"max":52.0,"min":-40.8,"stationId":8,"stationName":"Oslo","sum":1766.6,"ts":"2020-02-27T17:09:23.879Z","value":22.9}
{"avg":12.6,"count":263,"icon":"⛄⛄⛄","latitude":53.6,"longitude":10.0,"max":52.1,"min":-23.5,"stationId":1,"stationName":"Hamburg","sum":3325.8999999999987,"ts":"2020-02-27T17:09:26.843Z","value":-5.8}
{"avg":10.8,"count":227,"icon":"🌴🌴🌴","latitude":50.8,"longitude":-1.1,"max":51.9,"min":-29.1,"stationId":7,"stationName":"Porthsmouth","sum":2440.9000000000005,"ts":"2020-02-27T17:09:28.844Z","value":31.0}
{"avg":5.2,"count":224,"icon":"🌱🌱🌱","latitude":52.9,"longitude":-3.9,"max":51.5,"min":-29.0,"stationId":2,"stationName":"Snowdonia","sum":1170.0,"ts":"2020-02-27T17:09:29.844Z","value":5.2}
{"avg":12.6,"count":264,"icon":"🌱🌱🌱","latitude":53.6,"longitude":10.0,"max":52.1,"min":-23.5,"stationId":1,"stationName":"Hamburg","sum":3332.199999999999,"ts":"2020-02-27T17:09:30.844Z","value":6.3}
{"avg":20.2,"count":219,"icon":"🌱🌱🌱","la

matzew

Migrating to the PingSource

With the release of 0.13 the CronJobsource is deprecated, and should be converted to the PingSource

Here is an example of a CronJobSource that delivers messages to a given sink:

apiVersion: sources.eventing.knative.dev/v1alpha1
kind: CronJobSource
metadata:
 name: cronjob-source

matzew

Migration from ContainerSource to SinkBinding

With the Knative 0.13 release the ContainerSource is deprecated, and it is highly to use the SinkBinding instead.

From ContainerSource ...

With older releases (up to 0.12) the ContainerSource usage was like:

apiVersion: sources.eventing.knative.dev/v1alpha1

matzew

k logs -f broker-controller-687c699d9f-6gt6r -nknative-eventing  
2020/02/27 07:48:17 Registering 4 clients
2020/02/27 07:48:17 Registering 2 informer factories
2020/02/27 07:48:17 Registering 10 informers
2020/02/27 07:48:17 Registering 3 controllers
{"level":"info","ts":"2020-02-27T07:48:17.683Z","caller":"logging/config.go:108","msg":"Successfully created the logger."}
{"level":"info","ts":"2020-02-27T07:48:17.683Z","caller":"logging/config.go:109","msg":"Logging level set to info"}
{"level":"info","ts":"2020-02-27T07:48:17.683Z","logger":"broker-controller","caller":"profiling/server.go:59","msg":"Profiling enabled: false","commit":"598d52a"}
{"level":"info","ts":"2020-02-27T07:48:17.688Z","logger":"broker-controller","caller":"sharedmain/main.go:194","msg":"broker-controller will not run in leader-elected mode","commit":"598d52a"}
{"level":"info","ts":"2020-02-27T07:48:17.688Z","logger":"broker-controller.knative-eventing-namespace-controller","caller":"namespace/controller.go:77","msg":"Setting up event

matzew

apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
  labels:
    contrib.eventing.knative.dev/release: "v0.12.3"
    duck.knative.dev/addressable: "true"
  name: kafka-addressable-resolver
rules:
- apiGroups:
  - messaging.knative.dev

matzew

Run Strimzi on Minishift

As a cluster-admin user, with a correctly running Minishift, perform the following steps:

#!/usr/bin/env bash

# Turn colors in this script off by setting the NO_COLOR variable in your
# environment to any value:
#

matzew

#!/usr/bin/env bash

set -e

# Turn colors in this script off by setting the NO_COLOR variable in your
# environment to any value:
#
# $ NO_COLOR=1 test.sh
NO_COLOR=${NO_COLOR:-""}
if [ -z "$NO_COLOR" ]; then

matzew

Newcastle University WebSocket stream

Knative Serving

Apply this file:

apiVersion: serving.knative.dev/v1alpha1
kind: Service
metadata:

matzew

☁️  cloudevents.Event
Validation: valid
Context Attributes,
  specversion: 0.2
  type: dev.knative.prometheus.promql
  source: prometheus-source
  id: 3b0f4924-0d1c-4a3b-b15a-566c0ca67c83
  time: 2019-10-22T12:28:35.239998202Z
  contenttype: application/json