Enable option to allow all values for workload dashboard

Other workload dashboards already allow for the include-all option.
Having this options makes the workload dashboard a way better default
dashboard than the current `Kubernetes / Compute Resources / Namespace
(Pods)` dashboard since it's basically the same, but with the advantage
to also more easily filter for specific workloads inside the namespace.

Signed-off-by: Stefan Andres <[email protected]>

Author: stefanandres

dashboards/resources/workload.libsonnet

@@ -80,6 +80,7 @@ local var = g.dashboard.variable;
 
         workload:
           var.query.new('workload')
+          + var.query.selectionOptions.withIncludeAll()
           + var.query.withDatasourceFromVariable(self.datasource)
           + var.query.queryTypes.withLabelValues(
             'workload',
@@ -105,15 +106,15 @@ local var = g.dashboard.variable;
         sum(
             max by (%(clusterLabel)s, %(namespaceLabel)s, pod, container)(node_namespace_pod_container:container_cpu_usage_seconds_total:sum_rate5m{%(clusterLabel)s="$cluster", namespace="$namespace"})
           * on(%(clusterLabel)s, namespace, pod)
-            group_left(workload, workload_type) namespace_workload_pod:kube_pod_owner:relabel{%(clusterLabel)s="$cluster", namespace="$namespace", workload="$workload", workload_type=~"$type"}
+            group_left(workload, workload_type) namespace_workload_pod:kube_pod_owner:relabel{%(clusterLabel)s="$cluster", namespace="$namespace", workload=~"$workload", workload_type=~"$type"}
         ) by (pod)
       ||| % $._config;
 
       local cpuRequestsQuery = |||
         sum(
             max by (%(clusterLabel)s, %(namespaceLabel)s, pod, container)(kube_pod_container_resource_requests{%(kubeStateMetricsSelector)s, %(clusterLabel)s="$cluster", namespace="$namespace", resource="cpu"})
           * on(%(clusterLabel)s, namespace, pod)
-            group_left(workload, workload_type) namespace_workload_pod:kube_pod_owner:relabel{%(clusterLabel)s="$cluster", namespace="$namespace", workload="$workload", workload_type=~"$type"}
+            group_left(workload, workload_type) namespace_workload_pod:kube_pod_owner:relabel{%(clusterLabel)s="$cluster", namespace="$namespace", workload=~"$workload", workload_type=~"$type"}
         ) by (pod)
       ||| % $._config;
 
@@ -123,7 +124,7 @@ local var = g.dashboard.variable;
         sum(
             max by (%(clusterLabel)s, %(namespaceLabel)s, pod, container)(container_memory_working_set_bytes{%(clusterLabel)s="$cluster", namespace="$namespace", container!="", image!=""})
           * on(%(clusterLabel)s, namespace, pod)
-            group_left(workload, workload_type) namespace_workload_pod:kube_pod_owner:relabel{%(clusterLabel)s="$cluster", namespace="$namespace", workload="$workload", workload_type=~"$type"}
+            group_left(workload, workload_type) namespace_workload_pod:kube_pod_owner:relabel{%(clusterLabel)s="$cluster", namespace="$namespace", workload=~"$workload", workload_type=~"$type"}
         ) by (pod)
       ||| % $._config;
       local memRequestsQuery = std.strReplace(cpuRequestsQuery, 'cpu', 'memory');