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Optionally shard dashboards into multiple config maps to avoid size limits. #159

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Merged
merged 1 commit into from
Aug 16, 2019
Merged

Optionally shard dashboards into multiple config maps to avoid size limits. #159

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4 changes: 4 additions & 0 deletions prometheus-ksonnet/lib/config.libsonnet
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Original file line number Diff line number Diff line change
Expand Up @@ -59,5 +59,9 @@

// oauth2-proxy
oauth_enabled: false,

// Optionally shard dashboards into multiple config maps.
// Set to the number of desired config maps. 0 to disable.
dashboard_config_maps: 0,
},
}
37 changes: 31 additions & 6 deletions prometheus-ksonnet/lib/grafana.libsonnet
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Original file line number Diff line number Diff line change
Expand Up @@ -33,11 +33,25 @@
grafanaDashboards+:: $.dashboards + $.grafana_dashboards,

dashboards_config_map:
configMap.new('dashboards') +
configMap.withDataMixin({
[name]: std.toString($.grafanaDashboards[name])
for name in std.objectFields($.grafanaDashboards)
}),
if $._config.dashboard_config_maps > 0
then {}
else
configMap.new('dashboards') +
configMap.withDataMixin({
[name]: std.toString($.grafanaDashboards[name])
for name in std.objectFields($.grafanaDashboards)
}),

dashboards_config_maps: {
['dashboard-%d' % shard]:
configMap.new('dashboards-%d' % shard) +
configMap.withDataMixin({
[name]: std.toString($.grafanaDashboards[name])
for name in std.objectFields($.grafanaDashboards)
if std.codepoint(std.md5(name)[1]) % $._config.dashboard_config_maps == shard
}),
for shard in std.range(0, $._config.dashboard_config_maps-1)
},

grafana_dashboard_provisioning_config_map:
configMap.new('grafana-dashboard-provisioning') +
Expand Down Expand Up @@ -161,7 +175,18 @@
$.util.configVolumeMount('grafana-dashboard-provisioning', '%(grafana_provisioning_dir)s/dashboards' % $._config) +
$.util.configVolumeMount('grafana-datasources', '%(grafana_provisioning_dir)s/datasources' % $._config) +
$.util.configVolumeMount('grafana-notification-channels', '%(grafana_provisioning_dir)s/notifiers' % $._config) +
$.util.configVolumeMount('dashboards', '/grafana/dashboards') +
(
if $._config.dashboard_config_maps == 0
then $.util.configVolumeMount('dashboards', '/grafana/dashboards')
else
std.foldr(
function(m, acc) m + acc,
[
$.util.configVolumeMount('dashboards-%d' % shard, '/grafana/dashboards/%d' % shard)
for shard in std.range(0, $._config.dashboard_config_maps-1)
],
{})
) +
$.util.podPriority('critical'),

grafana_service:
Expand Down