From fa9166a4de4db7ab2c97b8e58068584d4ecd4911 Mon Sep 17 00:00:00 2001
From: bwplotka <bwplotka@gmail.com>
Date: Mon, 23 Mar 2026 08:16:52 +0000
Subject: [PATCH] kubecon demo

Signed-off-by: bwplotka <bwplotka@gmail.com>
---
 cmd/prometheus/kubecon.yaml         | 15 +++++++++++
 cmd/prometheus/kubecon_compat.yaml  | 15 +++++++++++
 cmd/prometheus/kubecon_demo_test.go | 41 +++++++++++++++++++++++++++++
 3 files changed, 71 insertions(+)
 create mode 100644 cmd/prometheus/kubecon.yaml
 create mode 100644 cmd/prometheus/kubecon_compat.yaml
 create mode 100644 cmd/prometheus/kubecon_demo_test.go

diff --git a/cmd/prometheus/kubecon.yaml b/cmd/prometheus/kubecon.yaml
new file mode 100644
index 0000000000..9e36b88e4a
--- /dev/null
+++ b/cmd/prometheus/kubecon.yaml
@@ -0,0 +1,15 @@
+global:
+  external_labels:
+    prometheus: demo
+scrape_configs:
+  - job_name: 'self'
+    scrape_interval: 5s
+    scrape_timeout: 5s
+    static_configs:
+      - targets: ['localhost:1234']
+  - job_name: 'self-nh'
+    scrape_interval: 5s
+    scrape_timeout: 5s
+    convert_classic_histograms_to_nhcb: true
+    static_configs:
+      - targets: [ 'localhost:1234' ]
diff --git a/cmd/prometheus/kubecon_compat.yaml b/cmd/prometheus/kubecon_compat.yaml
new file mode 100644
index 0000000000..9fc0801b35
--- /dev/null
+++ b/cmd/prometheus/kubecon_compat.yaml
@@ -0,0 +1,15 @@
+global:
+  external_labels:
+    prometheus: demo
+scrape_configs:
+  - job_name: 'self'
+    scrape_interval: 5s
+    scrape_timeout: 5s
+    static_configs:
+      - targets: ['localhost:1235']
+  - job_name: 'self-nh'
+    scrape_interval: 5s
+    scrape_timeout: 5s
+    convert_classic_histograms_to_nhcb: true
+    static_configs:
+      - targets: [ 'localhost:1235' ]
diff --git a/cmd/prometheus/kubecon_demo_test.go b/cmd/prometheus/kubecon_demo_test.go
new file mode 100644
index 0000000000..b53e6e4ac3
--- /dev/null
+++ b/cmd/prometheus/kubecon_demo_test.go
@@ -0,0 +1,41 @@
+package main
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+	"time"
+
+	e2einteractive "github.com/efficientgo/e2e/interactive"
+	"github.com/stretchr/testify/require"
+)
+
+func TestMain_PromQLCompatDemo(t *testing.T) {
+	dir, err := os.Getwd()
+	require.NoError(t, err)
+
+	open := func(port string) {
+		time.Sleep(10 * time.Second)
+		e2einteractive.OpenInBrowser(`http://localhost:` + port + `/query?g0.expr=sum%28prometheus_http_request_duration_seconds_bucket%29+by+%28job%2C+le%29&g0.show_tree=0&g0.tab=table&g0.range_input=1h&g0.res_type=auto&g0.res_density=medium&g0.display_mode=lines&g0.show_exemplars=0&g1.expr=sum%28prometheus_http_request_duration_seconds%29+by+%28job%29&g1.show_tree=0&g1.tab=table&g1.range_input=1h&g1.res_type=auto&g1.res_density=medium&g1.display_mode=lines&g1.show_exemplars=0`)
+		e2einteractive.OpenInBrowser(`http://localhost:` + port + `/query?g0.expr=histogram_quantile%280.99%2C+sum%28prometheus_http_request_duration_seconds_bucket%29+by+%28job%2C+le%29%29&g0.show_tree=0&g0.tab=graph&g0.range_input=1h&g0.res_type=auto&g0.res_density=medium&g0.display_mode=lines&g0.show_exemplars=0&g1.expr=histogram_quantile%280.99%2C+sum%28prometheus_http_request_duration_seconds%29+by+%28job%29%29&g1.show_tree=0&g1.tab=graph&g1.range_input=1h&g1.res_type=auto&g1.res_density=medium&g1.display_mode=lines&g1.show_exemplars=0`)
+		e2einteractive.OpenInBrowser(`http://localhost:` + port + `/query?g0.expr=sum%28prometheus_http_request_duration_seconds_count%29+by+%28job%29&g0.show_tree=0&g0.tab=graph&g0.range_input=1h&g0.res_type=auto&g0.res_density=medium&g0.display_mode=lines&g0.show_exemplars=0&g1.expr=histogram_count%28sum%28prometheus_http_request_duration_seconds%29+by+%28job%29%29&g1.show_tree=0&g1.tab=graph&g1.range_input=1h&g1.res_type=auto&g1.res_density=medium&g1.display_mode=lines&g1.show_exemplars=0`)
+	}
+	require.NoError(t, os.Chdir("../../")) // Ensure UI is sourced.
+
+	t.Run("normal", func(t *testing.T) {
+		go open("1234")
+
+		cfgFile := filepath.Join(dir, "kubecon.yaml")
+		data := filepath.Join(dir, "data", "normal")
+		os.Args = []string{"main", "--web.listen-address=0.0.0.0:1234", "--config.file=" + cfgFile, "--storage.tsdb.path=" + data}
+		main()
+	})
+	t.Run("compatible", func(t *testing.T) {
+		go open("1235")
+
+		cfgFile := filepath.Join(dir, "kubecon_compat.yaml")
+		data := filepath.Join(dir, "data", "compatible")
+		os.Args = []string{"main", "--web.listen-address=0.0.0.0:1235", "--config.file=" + cfgFile, "--storage.tsdb.path=" + data, "--enable-feature=promql-nhcb-as-classic"}
+		main()
+	})
+}