Add prometheus support

Author: MathieuCesbron

api/v1/immudb_types.go

@@ -50,6 +50,9 @@ type ImmudbSpec struct {
 
 	// +kubebuilder:validation:Required
 	Ingress ImmudbIngressSpec `json:"ingress"`
+
+	// +kubebuilder:validation:Required
+	ServiceMonitor ImmudbServiceMonitorSpec `json:"serviceMonitor"`
 }
 
 type ImmudbVolumeSpec struct {
@@ -79,6 +82,15 @@ type ImmudbIngressSpec struct {
 	Host string `json:"host"`
 }
 
+type ImmudbServiceMonitorSpec struct {
+	// +kubebuilder:validation:Required
+	Enabled bool `json:"enabled"`
+
+	// Labels Prometheus should be configured to watch.
+	// +kubebuilder:validation:Optional
+	Labels map[string]string `json:"labels"`
+}
+
 // ImmudbStatus defines the observed state of Immudb
 type ImmudbStatus struct {
 	// Important: Run "make" to regenerate code after modifying this file

api/v1/zz_generated.deepcopy.go

@@ -2,6 +2,6 @@ apiVersion: v2
 name: immudb-operator
 description: Helm chart to deploy [unagex-immudb-operator](https://github.com/unagex/immudb-operator)
 type: application
-version: 0.0.6
-appVersion: 0.0.6
+version: 0.0.7
+appVersion: 0.0.7
 home: https://github.com/unagex/immudb-operator

charts/operator/Chart.yaml

@@ -93,6 +93,18 @@ spec:
                 maximum: 1
                 minimum: 1
                 type: integer
+              serviceMonitor:
+                properties:
+                  enabled:
+                    type: boolean
+                  labels:
+                    additionalProperties:
+                      type: string
+                    description: Labels Prometheus should be configured to watch.
+                    type: object
+                required:
+                - enabled
+                type: object
               volume:
                 properties:
                   size:
@@ -107,6 +119,7 @@ spec:
                 type: object
             required:
             - ingress
+            - serviceMonitor
             - volume
             type: object
           status:

charts/operator/templates/crds/unagex.com_immudbs.yaml

@@ -24,6 +24,7 @@ import (
 	// to ensure that exec-entrypoint and run can make use of them.
 	_ "k8s.io/client-go/plugin/pkg/client/auth"
 
+	monitoring "github.com/prometheus-operator/prometheus-operator/pkg/apis/monitoring/v1"
 	"k8s.io/apimachinery/pkg/runtime"
 	utilruntime "k8s.io/apimachinery/pkg/util/runtime"
 	clientgoscheme "k8s.io/client-go/kubernetes/scheme"
@@ -43,8 +44,8 @@ var (
 
 func init() {
 	utilruntime.Must(clientgoscheme.AddToScheme(scheme))
-
 	utilruntime.Must(unagexcomv1.AddToScheme(scheme))
+	monitoring.AddToScheme(scheme)
 	//+kubebuilder:scaffold:scheme
 }
 
@@ -67,8 +68,6 @@ func main() {
 
 	mgr, err := ctrl.NewManager(ctrl.GetConfigOrDie(), ctrl.Options{
 		Scheme:                 scheme,
-		MetricsBindAddress:     metricsAddr,
-		Port:                   9443,
 		HealthProbeBindAddress: probeAddr,
 		LeaderElection:         enableLeaderElection,
 		LeaderElectionID:       "0f600675.unagex.com",

cmd/main.go

@@ -93,6 +93,18 @@ spec:
                 maximum: 1
                 minimum: 1
                 type: integer
+              serviceMonitor:
+                properties:
+                  enabled:
+                    type: boolean
+                  labels:
+                    additionalProperties:
+                      type: string
+                    description: Labels Prometheus should be configured to watch.
+                    type: object
+                required:
+                - enabled
+                type: object
               volume:
                 properties:
                   size:
@@ -107,6 +119,7 @@ spec:
                 type: object
             required:
             - ingress
+            - serviceMonitor
             - volume
             type: object
           status:

config/crd/bases/unagex.com_immudbs.yaml

@@ -17,3 +17,7 @@ spec:
     #   - hosts: 
     #     - example.com
     #     secretName : immudb-sample-secret
+  serviceMonitor:
+    enabled: false
+    # labels:
+    #   app.kubernetes.io/name: immudb

config/samples/v1_immudb.yaml

@@ -3,34 +3,34 @@ module github.com/unagex/immudb-operator
 go 1.21
 
 require (
-	github.com/go-logr/logr v1.2.4
-	github.com/onsi/ginkgo/v2 v2.9.5
-	github.com/onsi/gomega v1.27.7
-	k8s.io/api v0.27.7
-	k8s.io/apimachinery v0.27.7
-	k8s.io/client-go v0.27.7
+	github.com/go-logr/logr v1.3.0
+	github.com/onsi/ginkgo/v2 v2.11.0
+	github.com/onsi/gomega v1.27.10
+	github.com/prometheus-operator/prometheus-operator/pkg/apis/monitoring v0.71.2
+	k8s.io/api v0.28.4
+	k8s.io/apimachinery v0.28.4
+	k8s.io/client-go v0.28.4
 	k8s.io/utils v0.0.0-20240102154912-e7106e64919e
-	sigs.k8s.io/controller-runtime v0.15.0
+	sigs.k8s.io/controller-runtime v0.16.3
 )
 
 require (
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/cespare/xxhash/v2 v2.2.0 // indirect
-	github.com/davecgh/go-spew v1.1.1 // indirect
-	github.com/emicklei/go-restful/v3 v3.10.2 // indirect
-	github.com/evanphx/json-patch v5.6.0+incompatible // indirect
+	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
+	github.com/emicklei/go-restful/v3 v3.11.0 // indirect
 	github.com/evanphx/json-patch/v5 v5.6.0 // indirect
 	github.com/fsnotify/fsnotify v1.6.0 // indirect
 	github.com/go-logr/zapr v1.2.4 // indirect
 	github.com/go-openapi/jsonpointer v0.19.6 // indirect
-	github.com/go-openapi/jsonreference v0.20.1 // indirect
+	github.com/go-openapi/jsonreference v0.20.2 // indirect
 	github.com/go-openapi/swag v0.22.3 // indirect
 	github.com/go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572 // indirect
 	github.com/gogo/protobuf v1.3.2 // indirect
 	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
 	github.com/golang/protobuf v1.5.3 // indirect
-	github.com/google/gnostic v0.5.7-v3refs // indirect
-	github.com/google/go-cmp v0.5.9 // indirect
+	github.com/google/gnostic-models v0.6.8 // indirect
+	github.com/google/go-cmp v0.6.0 // indirect
 	github.com/google/gofuzz v1.2.0 // indirect
 	github.com/google/pprof v0.0.0-20210720184732-4bb14d4b1be1 // indirect
 	github.com/google/uuid v1.3.0 // indirect
@@ -43,33 +43,32 @@ require (
 	github.com/modern-go/reflect2 v1.0.2 // indirect
 	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
-	github.com/prometheus/client_golang v1.15.1 // indirect
+	github.com/prometheus/client_golang v1.16.0 // indirect
 	github.com/prometheus/client_model v0.4.0 // indirect
-	github.com/prometheus/common v0.42.0 // indirect
-	github.com/prometheus/procfs v0.9.0 // indirect
+	github.com/prometheus/common v0.44.0 // indirect
+	github.com/prometheus/procfs v0.10.1 // indirect
 	github.com/spf13/pflag v1.0.5 // indirect
-	github.com/stretchr/testify v1.8.3 // indirect
-	go.uber.org/atomic v1.7.0 // indirect
-	go.uber.org/multierr v1.6.0 // indirect
-	go.uber.org/zap v1.24.0 // indirect
-	golang.org/x/net v0.17.0 // indirect
-	golang.org/x/oauth2 v0.5.0 // indirect
-	golang.org/x/sys v0.13.0 // indirect
-	golang.org/x/term v0.13.0 // indirect
-	golang.org/x/text v0.13.0 // indirect
+	go.uber.org/multierr v1.11.0 // indirect
+	go.uber.org/zap v1.25.0 // indirect
+	golang.org/x/exp v0.0.0-20220722155223-a9213eeb770e // indirect
+	golang.org/x/net v0.19.0 // indirect
+	golang.org/x/oauth2 v0.8.0 // indirect
+	golang.org/x/sys v0.15.0 // indirect
+	golang.org/x/term v0.15.0 // indirect
+	golang.org/x/text v0.14.0 // indirect
 	golang.org/x/time v0.3.0 // indirect
-	golang.org/x/tools v0.9.1 // indirect
-	gomodules.xyz/jsonpatch/v2 v2.3.0 // indirect
+	golang.org/x/tools v0.9.3 // indirect
+	gomodules.xyz/jsonpatch/v2 v2.4.0 // indirect
 	google.golang.org/appengine v1.6.7 // indirect
-	google.golang.org/protobuf v1.30.0 // indirect
+	google.golang.org/protobuf v1.31.0 // indirect
 	gopkg.in/inf.v0 v0.9.1 // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
-	k8s.io/apiextensions-apiserver v0.27.7 // indirect
-	k8s.io/component-base v0.27.7 // indirect
-	k8s.io/klog/v2 v2.90.1 // indirect
-	k8s.io/kube-openapi v0.0.0-20230501164219-8b0f38b5fd1f // indirect
+	k8s.io/apiextensions-apiserver v0.28.4 // indirect
+	k8s.io/component-base v0.28.4 // indirect
+	k8s.io/klog/v2 v2.110.1 // indirect
+	k8s.io/kube-openapi v0.0.0-20230717233707-2695361300d9 // indirect
 	sigs.k8s.io/json v0.0.0-20221116044647-bc3834ca7abd // indirect
-	sigs.k8s.io/structured-merge-diff/v4 v4.2.3 // indirect
-	sigs.k8s.io/yaml v1.3.0 // indirect
+	sigs.k8s.io/structured-merge-diff/v4 v4.4.1 // indirect
+	sigs.k8s.io/yaml v1.4.0 // indirect
 )