API Request to GKE cluster using curl

a.sh

GCP_CLUSTER_NAME=europe-west1-fluffy-bcad8335-gke
GCP_CLUSTER_ZONE=europe-west1-b

curl --cacert <(gcloud container clusters describe "${GCP_CLUSTER_NAME}" \
        --zone "${GCP_CLUSTER_ZONE}" \
        --format='value(masterAuth.clusterCaCertificate)' | base64 -d\
    ) \
    --header "Authorization: Bearer $(gcloud auth print-access-token)" \
    https://$(gcloud container clusters describe "${GCP_CLUSTER_NAME}" \
        --zone "${GCP_CLUSTER_ZONE}" \
        --format='value(endpoint)'\
    )/logs/