From f0f1213dbc98efee3e90dcb462d306165e191376 Mon Sep 17 00:00:00 2001
From: Valentin Doreau <v.doreau@e-durable.ch>
Date: Fri, 15 Nov 2024 14:20:05 +0100
Subject: [PATCH] feat: added minio version export

---
 README.md       |  1 +
 app_exporter.go |  1 +
 apps/metrics.go |  4 ++++
 apps/minio.go   | 21 +++++++++++++++++++++
 4 files changed, 27 insertions(+)
 create mode 100644 apps/minio.go

diff --git a/README.md b/README.md
index c2ab1ed..d50de8e 100644
--- a/README.md
+++ b/README.md
@@ -11,6 +11,7 @@ This is mainly targeted at the Recycled Cloud hosted applications.
 - forgejo
 - forgejo_runner
 - grafana
+- minio
 - nextcloud: `curl -s https://files.rccd:9000/status.php | jq .version -r`
 - odoo
 - odoo enterprise commit/date: TODO
diff --git a/app_exporter.go b/app_exporter.go
index 44875ff..afb81fe 100644
--- a/app_exporter.go
+++ b/app_exporter.go
@@ -62,6 +62,7 @@ func RecordMetrics(m apps.Metrics) {
 		apps.Forgejo(m)
 		apps.ForgejoRunner(m)
 		apps.Grafana(m)
+		apps.Minio(m)
 		apps.Nextcloud(m)
 		apps.Odoo(m)
 		apps.Postgres(m)
diff --git a/apps/metrics.go b/apps/metrics.go
index fd2ec76..1e19230 100644
--- a/apps/metrics.go
+++ b/apps/metrics.go
@@ -9,6 +9,7 @@ type Metrics struct {
 	Forgejo       prometheus.GaugeVec
 	ForgejoRunner prometheus.GaugeVec
 	Grafana       prometheus.GaugeVec
+	Minio         prometheus.GaugeVec
 	Nextcloud     prometheus.GaugeVec
 	Odoo          prometheus.GaugeVec
 	Postgres      prometheus.GaugeVec
@@ -21,6 +22,7 @@ func NewMetrics(reg prometheus.Registerer) *Metrics {
 		Forgejo:       *prometheus.NewGaugeVec(prometheus.GaugeOpts{Namespace: "app", Subsystem: "version", Name: "forgejo", Help: ""}, []string{"version"}),
 		ForgejoRunner: *prometheus.NewGaugeVec(prometheus.GaugeOpts{Namespace: "app", Subsystem: "version", Name: "forgejo_runner", Help: ""}, []string{"version"}),
 		Grafana:       *prometheus.NewGaugeVec(prometheus.GaugeOpts{Namespace: "app", Subsystem: "version", Name: "grafana", Help: ""}, []string{"version"}),
+		Minio:         *prometheus.NewGaugeVec(prometheus.GaugeOpts{Namespace: "app", Subsystem: "version", Name: "minio", Help: ""}, []string{"version"}),
 		Nextcloud:     *prometheus.NewGaugeVec(prometheus.GaugeOpts{Namespace: "app", Subsystem: "version", Name: "nextcloud", Help: ""}, []string{"version"}),
 		Odoo:          *prometheus.NewGaugeVec(prometheus.GaugeOpts{Namespace: "app", Subsystem: "version", Name: "odoo", Help: ""}, []string{"version", "version_date"}),
 		Postgres:      *prometheus.NewGaugeVec(prometheus.GaugeOpts{Namespace: "app", Subsystem: "version", Name: "postgres", Help: ""}, []string{"version"}),
@@ -32,6 +34,7 @@ func NewMetrics(reg prometheus.Registerer) *Metrics {
 		metrics.Forgejo,
 		metrics.ForgejoRunner,
 		metrics.Grafana,
+		metrics.Minio,
 		metrics.Nextcloud,
 		metrics.Odoo,
 		metrics.Postgres,
@@ -49,6 +52,7 @@ func (m *Metrics) Reset() {
 	m.Forgejo.Reset()
 	m.ForgejoRunner.Reset()
 	m.Grafana.Reset()
+	m.Minio.Reset()
 	m.Nextcloud.Reset()
 	m.Odoo.Reset()
 	m.Postgres.Reset()
diff --git a/apps/minio.go b/apps/minio.go
new file mode 100644
index 0000000..ee01823
--- /dev/null
+++ b/apps/minio.go
@@ -0,0 +1,21 @@
+package apps
+
+import (
+	"log"
+	"os/exec"
+	"strings"
+
+	"github.com/prometheus/client_golang/prometheus"
+)
+
+func Minio(m Metrics) {
+	out, err := exec.Command("minio", "--version").Output()
+	if err != nil {
+		log.Printf(">> WARN: Unable to get Minio version: %v", err)
+		return
+	}
+
+	version := strings.Split(string(out), " ")[2]
+
+	m.Minio.With(prometheus.Labels{"version": version}).Set(1)
+}