direktiv-knative-source

Event Source for Direktiv and Knative

This repository contains ContainerSources for Knative Eventing. The following sources are available:

• Direktiv (Image: direktiv/direktiv-source)
  • type/source are set in flow in Direktiv
  • Image: direktiv/direktiv-source
• SNMP (Image: direktiv/snmp-source)
  • source: direktiv/snmp/source
  • type: direktiv.snmp
• Oracle Cloud Events (Image: direktiv/oci-source)
  • source/source based on the event from Oracle

Logging

All sources support debug logging via an environment variable DEBUG. A value of true enables debug logging. The logging output can be changed to JSON format via the environment variale LOG. If the value is json the logging will be in JSON format.

Logging Configuration

apiVersion: sources.knative.dev/v1
kind: ContainerSource
metadata:
  name: my-source
spec:
  template:
    spec:
      containers:
        - image: direktiv/snmp-source:v0.0.1
          name: snmp-source
          env:
            - name: DEBUG
              value: "true"

Testing

To test the components an event receiver is required. Knative provides an event display service to log events. The following examples applies to Direktiv environments. For other environments please remove the label and annotation because they are Direktiv specific.

Test Event Receiver

cat <<-EOF | kubectl apply -f -
---
apiVersion: serving.knative.dev/v1
kind: Service
metadata:
  name: event-display
  labels:
    networking.knative.dev/visibility: cluster-local
  annotations:
    network.knative.dev/ingress.class: kong-internal
spec:
  template:
    spec:
      containers:
        - image: gcr.io/knative-releases/knative.dev/eventing/cmd/event_display
EOF

To install individual resources locally use the script in /hack. It assumes a docker repository at localhost:5000 and installs the source pointing to the event-display service.

# e.g. hack/install.sh snmp
hack/install.sh <name>

Building

Tool required for building:

• go
• ko