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Copy some dashboard opinions from kubernete-mixin and apply to all dashboards. #235

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tomwilkie merged 2 commits into from
Apr 8, 2020
Merged

Copy some dashboard opinions from kubernete-mixin and apply to all dashboards. #235

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Copy some dashboard opinions from kubernete-mixin and apply to all da…
tomwilkie Apr 8, 2020
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tomwilkie Apr 8, 2020
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41 changes: 36 additions & 5 deletions prometheus-ksonnet/grafana/dashboards.libsonnet
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Original file line number Diff line number Diff line change
Expand Up @@ -10,17 +10,48 @@
// New API: Mixins go in the mixins map.
mixins+:: {},

// emptyMixin allows us to reliably do `mixin.grafanaDashboards` without
// mixinProto allows us to reliably do `mixin.grafanaDashboards` without
// having to check the field exists first. Some mixins don't declare all
// the fields, and thats fine.
local emptyMixin = {
grafanaDashboards+: {},
//
// We also use this to add a little "opinion":
// - Dashboard UIDs are set to the md5 hash of their filename.
// - Timezone are set to be "default" (ie local).
// - Tooltip only show a single value.
local mixinProto = {
grafanaDashboards+:: {},
} + {
local grafanaDashboards = super.grafanaDashboards,
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@tombrk tombrk Apr 8, 2020

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just to clarify, super here is the already merged $.mixins[mixinName] + { grafanaDashboards+:: {} }?

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@tomwilkie tomwilkie Apr 8, 2020

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Yes, thats just there so we can reliably reference super.grafanaDashboards (you can do std.hasField(super, ...).


grafanaDashboards+:: {
[filename]:
local dashboard = grafanaDashboards[filename];
dashboard {
uid: std.md5(filename),
timezone: '',

[if std.objectHas(dashboard, 'rows') then 'rows']: [
row {
panels: [
panel {
tooltip+: {
shared: false,
},
}
for panel in super.panels
],
}
for row in super.rows
],
}
for filename in std.objectFields(grafanaDashboards)
},
},

// Legacy extension points for you to add your own dashboards.
grafanaDashboards+:: std.foldr(
function(mixinName, acc)
local mixin = $.mixins[mixinName] + emptyMixin;
local mixin = $.mixins[mixinName] + mixinProto;
if !std.objectHas(mixin, 'grafanaDashboardFolder')
then acc + mixin.grafanaDashboards
else acc,
Expand All @@ -30,7 +61,7 @@

dashboardsByFolder+:: std.foldr(
function(mixinName, acc)
local mixin = $.mixins[mixinName] + emptyMixin;
local mixin = $.mixins[mixinName] + mixinProto;
if std.objectHas(mixin, 'grafanaDashboardFolder')
then acc {
[mixin.grafanaDashboardFolder]: mixin.grafanaDashboards,
Expand Down