Grafana as Code

Transfer our dashboard into a code representation via grafanalib.

deploy/grafana-dashboard/queries/current-environment-count.flux

@@ -0,0 +1,19 @@
+import "date"
+
+// The need for the date truncation is caused by Poseidon sending all influx events at the same time when starting up. This way not the last but a random value is displayed.
+// Since in this startup process the highest value is the correct one, we choose the highest value of the last events.
+
+data = from(bucket: "poseidon/autogen")
+  |> range(start: -1y)
+  |> filter(fn: (r) => r["_measurement"] == "poseidon_environments")
+  |> group(columns: ["stage"], mode:"by")
+  |> map(fn: (r) => ({ r with _time: date.truncate(t: r._time, unit: 1m) }))
+
+deploy_times = data
+  |> last()
+  |> keep(columns: ["stage", "_time"])
+
+join(tables: {key1: data, key2: deploy_times}, on: ["stage", "_time"], method: "inner")
+  |> max()
+  |> keep(columns: ["stage", "_value"])
+  |> rename(columns: {_value: ""})