Your containers hum along in AWS Elastic Kubernetes Service. Your events fly through Google Pub/Sub. Somewhere in between, a yawning gap forms. Credentials expire. IAM roles tangle. Messages vanish in translation. The fix is not magic, it is discipline.
EKS handles your compute layer, spinning up pods, scaling nodes, and letting developers run their code without worrying about infrastructure. Google Pub/Sub moves messages efficiently across services and clouds, acting as the backbone for event-driven systems. Tying them together creates a cross‑cloud pipeline that is resilient, decoupled, and fast—if you design it right.
To connect EKS with Google Pub/Sub, the key is identity and trust. EKS workloads need permission to publish or subscribe without embedding static secrets. You can use Google’s Workload Identity Federation and AWS IAM OpenID Connect integrations to issue short‑lived credentials. In plain language: pods in EKS authenticate securely to Google Cloud using existing AWS identity metadata. No long-lived keys hidden in ConfigMaps, no midnight rotations gone wrong.
The usual workflow looks like this. A developer deploys an application in EKS that exports structured events. The application’s ServiceAccount in Kubernetes maps to an AWS IAM role. That role, through a trust policy, federates with Google Identity to claim a short-lived token for Pub/Sub. Once connected, it publishes messages or consumes subscriptions as needed. Every request is verified, every credential ephemeral.
A few best practices smooth the edges.
- Keep identity mappings granular. Grant Pub/Sub access only to workloads that need it.
- Rotate the OIDC provider keys regularly.
- Use stricter Pub/Sub topic permissions to prevent rogue publishers.
- Audit Pub/Sub subscriptions and IAM policies with Cloud Logging to maintain SOC 2 compliance.
When tuned properly, EKS Google Pub/Sub integration yields tangible results:
- Real-time event delivery between AWS and GCP without manual polling.
- Fewer secrets to manage and rotate.
- Consistent security posture across hybrid clouds.
- Faster recovery when credentials or services fail.
- Reduced human error through automated identity assertions.
Developers notice the difference. They deploy once, connect streams instantly, and move on. No separate approvals to push messages across platforms, no fiddling with static config. Developer velocity climbs because the plumbing stops leaking.
Platforms like hoop.dev turn these access patterns into automated guardrails. Instead of hand-rolled scripts enforcing trust between clouds, it captures roles, policies, and tokens in one control plane, applying the same logic anywhere you run workloads. Compliance becomes a default state, not an afterthought.
How do I make EKS publish to Google Pub/Sub securely?
Use a Kubernetes ServiceAccount linked to an AWS IAM role with OIDC federation to Google Workload Identity. The role obtains temporary credentials that let pods publish or subscribe without exposing shared keys.
AI-powered agents can also use this model. When bots ingest or publish messages, they inherit the same scoped, time‑limited credentials, keeping automation from outrunning governance.
Simplify the bridge, trust the federation, and let your events flow freely.
See an Environment Agnostic Identity-Aware Proxy in action with hoop.dev. Deploy it, connect your identity provider, and watch it protect your endpoints everywhere—live in minutes.