Add another variable to pick the name of the promtail pod, we don't always deploy promtail with the same name and sometimes put more than one deployment in a namespace

Signed-off-by: Edward Welch <edward.welch@grafana.com>

production/promtail-mixin/dashboards.libsonnet

@@ -7,19 +7,20 @@ local utils = import 'mixin-utils/utils.libsonnet';
       g.dashboard('Loki / Promtail')
       .addTemplate('cluster', 'kube_pod_container_info{image=~".*promtail.*"}', 'cluster')
       .addTemplate('namespace', 'kube_pod_container_info{image=~".*promtail.*"}', 'namespace')
+      .addTemplate('name', 'kube_pod_info{namespace="$namespace",pod=~"promtail.*"}', 'created_by_name')
       .addRow(
         g.row('Targets & Files')
         .addPanel(
           g.panel('Active Targets') +
           g.queryPanel(
-            'sum(promtail_targets_active_total{cluster="$cluster", job="$namespace/promtail"})',
+            'sum(promtail_targets_active_total{cluster="$cluster", job="$namespace/$name"})',
             'Active Targets',
           ),
         )
         .addPanel(
           g.panel('Active Files') +
           g.queryPanel(
-            'sum(promtail_files_active_total{cluster="$cluster", job="$namespace/promtail"})',
+            'sum(promtail_files_active_total{cluster="$cluster", job="$namespace/$name"})',
             'Active Targets',
           ),
         )
@@ -29,7 +30,7 @@ local utils = import 'mixin-utils/utils.libsonnet';
         .addPanel(
           g.panel('Bps') +
           g.queryPanel(
-            'sum(rate(promtail_read_bytes_total{cluster="$cluster", job="$namespace/promtail"}[1m]))',
+            'sum(rate(promtail_read_bytes_total{cluster="$cluster", job="$namespace/$name"}[1m]))',
             'logs read',
           ) +
           { yaxes: g.yaxes('Bps') },
@@ -37,7 +38,7 @@ local utils = import 'mixin-utils/utils.libsonnet';
         .addPanel(
           g.panel('Lines') +
           g.queryPanel(
-            'sum(rate(promtail_read_lines_total{cluster="$cluster", job="$namespace/promtail"}[1m]))',
+            'sum(rate(promtail_read_lines_total{cluster="$cluster", job="$namespace/$name"}[1m]))',
             'lines read',
           ),
         )
@@ -46,11 +47,11 @@ local utils = import 'mixin-utils/utils.libsonnet';
         g.row('Requests')
         .addPanel(
           g.panel('QPS') +
-          g.qpsPanel('promtail_request_duration_seconds_count{cluster="$cluster", job="$namespace/promtail"}')
+          g.qpsPanel('promtail_request_duration_seconds_count{cluster="$cluster", job="$namespace/$name"}')
         )
         .addPanel(
           g.panel('Latency') +
-          utils.latencyRecordingRulePanel('promtail_request_duration_seconds', [utils.selector.eq('job', '$namespace/promtail')], extra_selectors=[utils.selector.eq('cluster', '$cluster')])
+          utils.latencyRecordingRulePanel('promtail_request_duration_seconds', [utils.selector.eq('job', '$namespace/$name')], extra_selectors=[utils.selector.eq('cluster', '$cluster')])
         )
       ),
   },