You are trying to connect to your Google Kubernetes Engine (GKE) cluster using kubectl from Cloud Shell. You have deployed your GKE cluster with a public endpoint. From Cloud Shell, you run the…

Question

Options

• AYour user account does not have privileges to interact with the cluster using kubectl.
• BYour Cloud Shell external IP address is not part of the authorized networks of the cluster.
• CThe Cloud Shell is not part of the same VPC as the GKE cluster.
• DA VPC firewall is blocking access to the cluster's endpoint.

• A
  7% (4)
• B
  77% (47)
• C
  3% (2)
• D
  13% (8)

Explanation

GKE clusters with public endpoints support an authorized networks feature - an IP allowlist that restricts which source IPs can reach the Kubernetes API server. Cloud Shell sessions receive dynamic external IP addresses that are typically not pre-added to this allowlist. A blocked IP at this layer results in a TCP timeout (the connection is silently dropped), which explains the timeout with no error message. An authentication/authorization failure (A) would return an HTTP 401/403 error immediately, not a timeout. VPC membership (C) is irrelevant for a public endpoint - the API server is reachable over the internet. A VPC firewall (D) is possible in theory but less likely than the authorized networks restriction for a public-endpoint cluster accessed from Cloud Shell.

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