management: add CRD support and create alert rule API

Add AlertingRule, AlertRelabelConfig, and
RelabeledRules CRD interfaces with the
management client, router, server wiring,
and POST /api/v1/alerting/rules endpoint.

Signed-off-by: Shirly Radco <sradco@redhat.com>
Signed-off-by: João Vilaça <jvilaca@redhat.com>
Signed-off-by: Aviv Litman <alitman@redhat.com>
Co-authored-by: AI Assistant <noreply@cursor.com>

Author: sradco

Dockerfile

@@ -25,6 +25,7 @@ RUN make install-backend
 
 COPY cmd/ cmd/
 COPY pkg/ pkg/
+COPY internal/ internal/
 
 ENV GOEXPERIMENT=strictfipsruntime
 ENV CGO_ENABLED=1

Dockerfile.dev

@@ -28,6 +28,7 @@ RUN go mod download
 
 COPY cmd/ cmd/
 COPY pkg/ pkg/
+COPY internal/ internal/
 
 RUN go build -mod=mod -o plugin-backend cmd/plugin-backend.go
 

Dockerfile.dev-mcp

@@ -31,6 +31,7 @@ RUN go mod download
 
 COPY cmd/ cmd/
 COPY pkg/ pkg/
+COPY internal/ internal/
 
 RUN go build -mod=mod -o plugin-backend cmd/plugin-backend.go
 

Dockerfile.devspace

@@ -20,6 +20,7 @@ RUN make install-backend
 COPY config/ config/
 COPY cmd/ cmd/
 COPY pkg/ pkg/
+COPY internal/ internal/
 
 RUN make build-backend
 

Dockerfile.konflux

@@ -28,6 +28,7 @@ RUN make install-backend
 
 COPY cmd/ cmd/
 COPY pkg/ pkg/
+COPY internal/ internal/
 
 ENV GOEXPERIMENT=strictfipsruntime
 ENV CGO_ENABLED=1

Dockerfile.mcp

@@ -28,6 +28,7 @@ RUN make install-backend
 
 COPY cmd/ cmd/
 COPY pkg/ pkg/
+COPY internal/ internal/
 
 ENV GOOS=${TARGETOS:-linux}
 ENV GOARCH=${TARGETARCH}

Makefile

@@ -56,7 +56,11 @@ start-backend:
 
 .PHONY: test-backend
 test-backend:
-	go test ./pkg/... -v
+	go test ./pkg/... ./internal/... -v
+
+.PHONY: test-e2e
+test-e2e:
+	PLUGIN_URL=http://localhost:9001 go test -v -timeout=150m -count=1 ./test/e2e
 
 .PHONY: test-frontend
 test-frontend:

go.mod

@@ -6,10 +6,15 @@ require (
 	github.com/evanphx/json-patch v4.12.0+incompatible
 	github.com/gorilla/handlers v1.5.2
 	github.com/gorilla/mux v1.8.1
+	github.com/onsi/ginkgo/v2 v2.22.0
+	github.com/onsi/gomega v1.36.1
+	github.com/openshift/api v0.0.0-20251122153900-88cca31a44c9
 	github.com/openshift/client-go v0.0.0-20251123231646-4685125c2287
 	github.com/openshift/library-go v0.0.0-20240905123346-5bdbfe35a6f5
 	github.com/prometheus-operator/prometheus-operator/pkg/apis/monitoring v0.87.0
 	github.com/prometheus-operator/prometheus-operator/pkg/client v0.87.0
+	github.com/prometheus/common v0.67.4
+	github.com/prometheus/prometheus v0.308.0
 	github.com/sirupsen/logrus v1.9.3
 	github.com/stretchr/testify v1.11.1
 	gopkg.in/yaml.v2 v2.4.0
@@ -20,6 +25,7 @@ require (
 )
 
 require (
+	github.com/cespare/xxhash/v2 v2.3.0 // indirect
 	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
 	github.com/emicklei/go-restful/v3 v3.13.0 // indirect
 	github.com/felixge/httpsnoop v1.0.4 // indirect
@@ -40,18 +46,20 @@ require (
 	github.com/go-openapi/swag/stringutils v0.25.1 // indirect
 	github.com/go-openapi/swag/typeutils v0.25.1 // indirect
 	github.com/go-openapi/swag/yamlutils v0.25.1 // indirect
+	github.com/go-task/slim-sprig/v3 v3.0.0 // indirect
 	github.com/gogo/protobuf v1.3.2 // indirect
 	github.com/google/gnostic-models v0.7.0 // indirect
 	github.com/google/go-cmp v0.7.0 // indirect
 	github.com/google/pprof v0.0.0-20250923004556-9e5a51aed1e8 // indirect
 	github.com/google/uuid v1.6.0 // indirect
+	github.com/grafana/regexp v0.0.0-20250905093917-f7b3be9d1853 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.3-0.20250322232337-35a7c28c31ee // indirect
 	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
-	github.com/openshift/api v0.0.0-20251122153900-88cca31a44c9 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
 	github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect
+	github.com/prometheus/client_model v0.6.2 // indirect
 	github.com/x448/float16 v0.8.4 // indirect
 	go.yaml.in/yaml/v2 v2.4.3 // indirect
 	go.yaml.in/yaml/v3 v3.0.4 // indirect
@@ -61,6 +69,7 @@ require (
 	golang.org/x/term v0.36.0 // indirect
 	golang.org/x/text v0.30.0 // indirect
 	golang.org/x/time v0.13.0 // indirect
+	golang.org/x/tools v0.37.0 // indirect
 	google.golang.org/protobuf v1.36.10 // indirect
 	gopkg.in/evanphx/json-patch.v4 v4.13.0 // indirect
 	gopkg.in/inf.v0 v0.9.1 // indirect

go.sum

@@ -1,3 +1,5 @@
+github.com/cespare/xxhash/v2 v2.3.0 h1:UL815xU9SqsFlibzuggzjXhog7bL6oX9BbNZnL2UFvs=
+github.com/cespare/xxhash/v2 v2.3.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc h1:U9qPSI2PIWSS1VwoXQT9A3Wy9MM3WgvqSxFWenqJduM=
@@ -61,6 +63,8 @@ github.com/gorilla/handlers v1.5.2 h1:cLTUSsNkgcwhgRqvCNmdbRWG0A3N4F+M2nWKdScwyE
 github.com/gorilla/handlers v1.5.2/go.mod h1:dX+xVpaxdSw+q0Qek8SSsl3dfMk3jNddUkMzo0GtH0w=
 github.com/gorilla/mux v1.8.1 h1:TuBL49tXwgrFYWhqrNgrUNEY92u81SPhu7sTdzQEiWY=
 github.com/gorilla/mux v1.8.1/go.mod h1:AKf9I4AEqPTmMytcMc0KkNouC66V3BtZ4qD5fmWSiMQ=
+github.com/grafana/regexp v0.0.0-20250905093917-f7b3be9d1853 h1:cLN4IBkmkYZNnk7EAJ0BHIethd+J6LqxFNw5mSiI2bM=
+github.com/grafana/regexp v0.0.0-20250905093917-f7b3be9d1853/go.mod h1:+JKpmjMGhpgPL+rXZ5nsZieVzvarn86asRlBg4uNGnk=
 github.com/json-iterator/go v1.1.12 h1:PV8peI4a0ysnczrg+LtxykD8LfKY9ML6u2jnxaEnrnM=
 github.com/json-iterator/go v1.1.12/go.mod h1:e30LSqwooZae/UwlEbR2852Gd8hjQvJoHmT4TnhNGBo=
 github.com/kisielk/errcheck v1.5.0/go.mod h1:pFxgyoBC7bSaBwPgfKdkLd5X25qrDl4LWUI2bnpBCr8=
@@ -96,6 +100,12 @@ github.com/prometheus-operator/prometheus-operator/pkg/apis/monitoring v0.87.0 h
 github.com/prometheus-operator/prometheus-operator/pkg/apis/monitoring v0.87.0/go.mod h1:WHiLZmOWVop/MoYvRD58LfnPeyE+dcITby/jQjg83Hw=
 github.com/prometheus-operator/prometheus-operator/pkg/client v0.87.0 h1:rrZriucuC8ZUOPr8Asvavb9pbzqXSsAeY79aH8xnXlc=
 github.com/prometheus-operator/prometheus-operator/pkg/client v0.87.0/go.mod h1:OMvC2XJGxPeEAKf5qB1u7DudV46HA8ePxYslRjxQcbk=
+github.com/prometheus/client_model v0.6.2 h1:oBsgwpGs7iVziMvrGhE53c/GrLUsZdHnqNwqPLxwZyk=
+github.com/prometheus/client_model v0.6.2/go.mod h1:y3m2F6Gdpfy6Ut/GBsUqTWZqCUvMVzSfMLjcu6wAwpE=
+github.com/prometheus/common v0.67.4 h1:yR3NqWO1/UyO1w2PhUvXlGQs/PtFmoveVO0KZ4+Lvsc=
+github.com/prometheus/common v0.67.4/go.mod h1:gP0fq6YjjNCLssJCQp0yk4M8W6ikLURwkdd/YKtTbyI=
+github.com/prometheus/prometheus v0.308.0 h1:kVh/5m1n6m4cSK9HYTDEbMxzuzCWyEdPdKSxFRxXj04=
+github.com/prometheus/prometheus v0.308.0/go.mod h1:xXYKzScyqyFHihpS0UsXpC2F3RA/CygOs7wb4mpdusE=
 github.com/rogpeppe/go-internal v1.13.1 h1:KvO1DLK/DRN07sQ1LQKScxyZJuNnedQ5/wKSR38lUII=
 github.com/rogpeppe/go-internal v1.13.1/go.mod h1:uMEvuHeurkdAXX61udpOXGD/AzZDWNMNyH2VO9fmH0o=
 github.com/sirupsen/logrus v1.9.3 h1:dueUQJ1C2q9oE3F7wvmSGAaVtTmUizReu6fjN8uqzbQ=
@@ -113,6 +123,8 @@ github.com/x448/float16 v0.8.4 h1:qLwI1I70+NjRFUR3zs1JPUCgaCXSh3SW62uAKT1mSBM=
 github.com/x448/float16 v0.8.4/go.mod h1:14CWIYCyZA/cWjXOioeEpHeN/83MdbZDRQHoFcYsOfg=
 github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
+go.uber.org/atomic v1.11.0 h1:ZvwS0R+56ePWxUNi+Atn9dWONBPp/AUETXlHW0DxSjE=
+go.uber.org/atomic v1.11.0/go.mod h1:LUxbIzbOniOlMKjJjyPfpl4v+PKK2cNJn91OQbhoJI0=
 go.uber.org/goleak v1.3.0 h1:2K3zAYmnTNqV73imy9J1T3WC+gmCePx2hEGkimedGto=
 go.uber.org/goleak v1.3.0/go.mod h1:CoHD4mav9JJNrW/WLlf7HGZPjdw8EucARQHekz1X6bE=
 go.yaml.in/yaml/v2 v2.4.3 h1:6gvOSjQoTB3vt1l+CU+tSyi/HOjfOjRLJ4YwYZGwRO0=

internal/managementrouter/create_alert_rule.go

@@ -0,0 +1,58 @@
+package managementrouter
+
+import (
+	"encoding/json"
+	"net/http"
+
+	monitoringv1 "github.com/prometheus-operator/prometheus-operator/pkg/apis/monitoring/v1"
+
+	"github.com/openshift/monitoring-plugin/pkg/management"
+)
+
+type CreateAlertRuleRequest struct {
+	AlertingRule   *monitoringv1.Rule                `json:"alertingRule,omitempty"`
+	PrometheusRule *management.PrometheusRuleOptions `json:"prometheusRule,omitempty"`
+}
+
+type CreateAlertRuleResponse struct {
+	Id string `json:"id"`
+}
+
+const maxRequestBodyBytes = 1 << 20 // 1 MB
+
+func (hr *httpRouter) CreateAlertRule(w http.ResponseWriter, req *http.Request) {
+	req.Body = http.MaxBytesReader(w, req.Body, maxRequestBodyBytes)
+
+	var payload CreateAlertRuleRequest
+	if err := json.NewDecoder(req.Body).Decode(&payload); err != nil {
+		writeError(w, http.StatusBadRequest, "invalid request body")
+		return
+	}
+
+	if payload.AlertingRule == nil {
+		writeError(w, http.StatusBadRequest, "alertingRule is required")
+		return
+	}
+
+	alertRule := *payload.AlertingRule
+
+	var (
+		id  string
+		err error
+	)
+
+	if payload.PrometheusRule != nil {
+		id, err = hr.managementClient.CreateUserDefinedAlertRule(req.Context(), alertRule, *payload.PrometheusRule)
+	} else {
+		id, err = hr.managementClient.CreatePlatformAlertRule(req.Context(), alertRule)
+	}
+
+	if err != nil {
+		handleError(w, err)
+		return
+	}
+
+	w.Header().Set("Content-Type", "application/json")
+	w.WriteHeader(http.StatusCreated)
+	_ = json.NewEncoder(w).Encode(CreateAlertRuleResponse{Id: id})
+}