Tag: gcp

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Scaling Out Secure Dedicated Ingress on GCP

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Proposed Architecture The architecture presented below satisfies GCP customers requirements to use third party compute instance based appliances in their flows. The design considers HTTP(S) load balancers due its advanced capabilities. Constraints GCP Load Balancers Decision Chart Update DNS How to Scale Scenario 1 How to Scale Scenario 2 How to Scale Scenario 3 How to Scale Scenario 4 The HC as before is the same as we are checking the health of the compute instances: References https://research.google/pubs/pub44824/ https://cloud.google.com/load-balancing/docs/load-balancing-overview https://cloud.google.com/load-balancing/docs/backend-service Continue reading Scaling Out Secure Dedicated Ingress on GCP

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Dedicated Ingress VPC Health Checks

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Topology (VPC003) Workload Configuration Instance Group: Health check: Network Load Balancer: (VPC001) Ingress VPC SNAT/DNAT using single NAT: Another option is to use customized NAT: Instance Group: Health Check: External Global HTTP(S) Load Balancer: Testing Packet capture from the proxy instance: Troubleshooting Health check failures: “End-to-End” Health Check In this scenario, the external load balancer health check probes the the internal load balancer: New HC on port 80 (service port): References https://cloud.google.com/load-balancing/docs/health-check-concepts Continue reading Dedicated Ingress VPC Health Checks

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Going full DevOps with GCP (Draft)

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Google API Access Instances in VPC can reach Google and third-party APIs and services without an external IP address. All Google Cloud APIs and services support private access. The access methods are different for services in VPC networks compared to services in Google’s production infrastructure Advantages: Networking Services API Container Registry Serverless VPC Access Cloud Build Cloud Build is a managed service on Google Cloud Platform infrastructure that allows you to continuously build, test and deploy containers. Private pools are customer-specific resources and can be customized. One customization option is the capability to disable the association of external IPs: Once … Continue reading Going full DevOps with GCP (Draft)

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Migrating from GCP… to GCP

rtrentin

Current and Future Architecture Current state: Desired state: vpc001 is composed of the following subnets: vpc001 routing table (filtering routes of interest): On-prem (AS 36180) routing table: Staging On-prem route table after staging is complete (avx gateway is not attached): Attaching the gateway: And advertise the vpc001 subnets with a better metric (please note that RFC 6598 prefixes are not advertised from AVX by default): To avoid traffic switching over to AVX asymmetrically during the staging we have a few options: Switching traffic over (East-West) vpc001 destination routes to vpc002: When Cloud Routers learn a prefix that exactly matches the … Continue reading Migrating from GCP… to GCP

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All those (vpc) flow logs… Consolidate vpc flow logs using BigQuery

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VPC FlowLogs VPC Flow Logs records a sample of network flow. Logs can be used for network monitoring, forensics, real-time security analysis, and expense optimization. Once the vpc_flows are enabled on all subnets of interest, we can go to Logging to check if we see logs arriving: Sample below: BigQuery Cloud Logging “routes” logs to destinations like buckets, BigQuery or to Pub/Sub: We want to consolidate all logs in a centralized location where we can consume the data ingest. We can use BigQuery to accomplish that creating a sink. Sinks control how Cloud Logging routes logs: We can also set … Continue reading All those (vpc) flow logs… Consolidate vpc flow logs using BigQuery