feat: control plane tracing

[KevFan]

Description

Part of Kuadrant/kuadrant-operator#1690

Add traces for:

• Auth Config controller
  • Link with parent trace if present in annotation
• Auth Config Status controller
  • Link with parent trace if present in annotation
• Secret controller

Verification

• Create cluster

kind create cluster 
make install

• Run jaeger

podman run --rm --name jaeger \
  -p 16686:16686 \
  -p 4317:4317 \
  -p 4318:4318 \
  -p 5778:5778 \
  -p 9411:9411 \
  cr.jaegertracing.io/jaegertracing/jaeger:2.14.0

• Run authorino locally

make run RUN_EXTRA_ARGS="--tracing-service-endpoint=http://localhost:4318 --tracing-service-insecure=true"

• Create Authconfig and API key secret

kubectl apply -f -<<EOF
apiVersion: authorino.kuadrant.io/v1beta3
kind: AuthConfig
metadata:
  name: talker-api-protection
spec:
  hosts:
  - talker-api.127.0.0.1.nip.io
  authentication:
    "friends":
      apiKey:
        selector:
          matchLabels:
            group: friends
      credentials:
        authorizationHeader:
          prefix: APIKEY
EOF

kubectl apply -f -<<EOF
apiVersion: v1
kind: Secret
metadata:
  name: api-key-1
  labels:
    authorino.kuadrant.io/managed-by: authorino
    group: friends
stringData:
  api_key: ndyBzreUzF4zqDQsqSPMHkRhriEOtcRx
type: Opaque
EOF

• View traces in jaeger at http://localhost:16686/
• Annotate AuthConfig with trace context

kubectl apply -f -<<EOF
apiVersion: authorino.kuadrant.io/v1beta3
kind: AuthConfig
metadata:
  name: talker-api-protection
  annotations:
    traceparent: 00-b9793372e63e6928a90511fe525089e5-71950e994731984a-01
spec:
  hosts:
  - talker-api.127.0.0.1.nip.io
  authentication:
    "friends":
      apiKey:
        selector:
          matchLabels:
            group: friends
      credentials:
        authorizationHeader:
          prefix: APIKEY
EOF

• View that AuthConfig and AuthConfig Status reconciles are linked to another trace (missing parent span warning is expected since the parent trace does not exist in jaeger)

[adam-cattermole]

Looks good, ran through the steps and all is working