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@brancz
Created June 25, 2020 14:29
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GB available for request on nodes excluding master and infra role nodes.
(kube_node_status_allocatable_memory_bytes * on(node) group_left() (kube_node_role{role="worker"} unless ignoring(role) kube_node_role{role="infra"}) - on(node) sum by(node) (kube_pod_container_resource_requests_memory_bytes * on(node) group_left() (kube_node_role{role="worker"} unless ignoring(role) kube_node_role{role="infra"}))) / 1e9
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