Adds dev testing key and updates contributing info

General MR

Summary

• Adds dev testing key and updates contributing info
• Updates registry connection info
• Adds secret template file to show which overlay values are being provided

Relevant logs/screenshots

Created a k3d instance with MetalLB enabled and was able to deploy Big Bang 3.2.0 and tested Grafana UI was available with the bbctl dashboards installed:

 technical-profiles (bbctl-67-default-profile) ✗ kubectl get hr -A
NAMESPACE   NAME                         AGE     READY   STATUS
bigbang     alloy                        9m34s   True    Helm install succeeded for release alloy/alloy.v1 with chart k8s-monitoring@2.0.27-bb.3
bigbang     bbctl                        9m34s   True    Helm install succeeded for release bbctl/bbctl-bbctl.v1 with chart bbctl@2.0.0-bb.3
bigbang     bigbang                      9m39s   True    Helm upgrade succeeded for release bigbang/bigbang.v2 with chart bigbang@3.2.0
bigbang     grafana                      9m34s   True    Helm install succeeded for release monitoring/monitoring-grafana.v1 with chart grafana@9.2.7-bb.0
bigbang     istio-crds                   9m34s   True    Helm install succeeded for release istio-system/istio-crds.v1 with chart istio-crds@1.26.1-bb.0
bigbang     istiod                       9m34s   True    Helm install succeeded for release istio-system/istiod.v1 with chart istiod@1.26.1-bb.0
bigbang     kiali                        9m34s   True    Helm install succeeded for release kiali/kiali-kiali.v1 with chart kiali@2.10.0-bb.2
bigbang     kyverno                      9m34s   True    Helm install succeeded for release kyverno/kyverno-kyverno.v1 with chart kyverno@3.3.6-bb.5
bigbang     kyverno-policies             9m34s   True    Helm install succeeded for release kyverno/kyverno-kyverno-policies.v1 with chart kyverno-policies@3.3.4-bb.10
bigbang     kyverno-reporter             9m34s   True    Helm install succeeded for release kyverno-reporter/kyverno-reporter-kyverno-reporter.v1 with chart kyverno-reporter@3.1.4-bb.0
bigbang     loki                         9m34s   True    Helm install succeeded for release logging/logging-loki.v1 with chart loki@6.30.1-bb.2
bigbang     metrics-server               9m34s   True    Helm install succeeded for release metrics-server/metrics-server.v1 with chart metrics-server@3.12.2-bb.4
bigbang     monitoring                   9m34s   True    Helm install succeeded for release monitoring/monitoring-monitoring.v1 with chart monitoring@73.2.0-bb.0
bigbang     neuvector                    9m34s   True    Helm install succeeded for release neuvector/neuvector-neuvector.v1 with chart neuvector@2.8.6-bb.0
bigbang     passthrough-ingressgateway   9m34s   True    Helm install succeeded for release istio-gateway/passthrough-ingressgateway.v1 with chart gateway@1.26.1-bb.2
bigbang     public-ingressgateway        9m34s   True    Helm install succeeded for release istio-gateway/public-ingressgateway.v1 with chart gateway@1.26.1-bb.2
bigbang     tempo                        9m34s   True    Helm install succeeded for release tempo/tempo-tempo.v1 with chart tempo@1.21.1-bb.0

Linked Issue

big-bang/apps/developer-tools/bbctl#67 (closed)

Upgrade Notices

N/A

Closes big-bang/apps/developer-tools/bbctl#67 (closed)