Upgrading Agones

# Get current Agones version
kubectl get deployment -n agones-system agones-controller \
  -o jsonpath='{.spec.template.spec.containers[0].image}'

# Check Helm release
helm list -n agones-system

# Export current Helm values
helm get values agones -n agones-system > agones-values-backup.yaml

# Backup CRDs
kubectl get crd -o yaml | \
  grep -E "agones.dev|multicluster.agones.dev" > agones-crds-backup.yaml

# Backup all Agones resources
kubectl get gameservers,fleets,fleetautoscalers --all-namespaces \
  -o yaml > agones-resources-backup.yaml

# Check controller logs for deprecation warnings
kubectl logs -n agones-system -l app=agones,component=controller \
  --tail=1000 | grep -i deprecat

# Verify CRD versions after upgrade
kubectl get crd gameservers.agones.dev -o yaml | grep version

# Watch controller rollout
kubectl rollout status deployment/agones-controller -n agones-system

# Trigger Fleet update to refresh all GameServers
kubectl patch fleet <fleet-name> \
  --type merge \
  -p '{"spec":{"template":{"metadata":{"annotations":{"agones.dev/sdk-version":"1.42.0"}}}}}'

helm upgrade agones agones/agones \
  --version 1.42.0 \
  --namespace agones-system \
  --set agones.featureGates="PlayerTracking=true,CountsAndLists=true" \
  --reuse-values

# Check controller logs for feature gate configuration
kubectl logs -n agones-system -l app=agones,component=controller \
  --tail=50 | grep featureGates

{"featureGates":"PlayerTracking=true&CountsAndLists=true","message":"starting gameServer operator..."}

# Check controller is running
kubectl get pods -n agones-system -l app=agones,component=controller

# Check for errors in logs
kubectl logs -n agones-system -l app=agones,component=controller \
  --tail=100 | grep -i error

# Verify metrics endpoint
kubectl port-forward -n agones-system svc/agones-controller 8080:8080
curl http://localhost:8080/metrics

# Create a test GameServer
kubectl create -f https://raw.githubusercontent.com/googleforgames/agones/release-1.42.0/examples/simple-game-server/gameserver.yaml

# Watch it become Ready
kubectl get gs simple-game-server -w

# Clean up
kubectl delete gs simple-game-server

# Create test fleet
kubectl apply -f - <<EOF
apiVersion: agones.dev/v1
kind: Fleet
metadata:
  name: test-fleet
spec:
  replicas: 2
  template:
    spec:
      ports:
      - name: default
        containerPort: 7654
      template:
        spec:
          containers:
          - name: simple-game-server
            image: us-docker.pkg.dev/agones-images/examples/simple-game-server:0.34
EOF

# Wait for ready GameServers
kubectl wait --for=jsonpath='{.status.readyReplicas}'=2 fleet/test-fleet --timeout=300s

# Test allocation
kubectl apply -f - <<EOF
apiVersion: allocation.agones.dev/v1
kind: GameServerAllocation
metadata:
  generateName: test-allocation-
spec:
  required:
    matchLabels:
      agones.dev/fleet: test-fleet
EOF

# Verify allocation succeeded
kubectl get gsa -l agones.dev/fleet=test-fleet

# Clean up
kubectl delete fleet test-fleet

# Check key metrics
kubectl port-forward -n agones-system svc/agones-controller 8080:8080

# GameServer counts
curl -s http://localhost:8080/metrics | grep agones_gameservers_count

# Allocation metrics
curl -s http://localhost:8080/metrics | grep agones_gameserver_allocations

# Controller health
curl -s http://localhost:8080/metrics | grep go_goroutines