feat: allow user to gets list of his tenants

.github/workflows/lint.yaml

@@ -16,9 +16,14 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
       - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
+      - name: Install Go
+        uses: actions/setup-go@4d34df0c2316fe8122ab82dc22947d607c0c91f9 # v4.0.0
+        with:
+          go-version: '1.21'
+          cache: false
       - name: Run golangci-lint
         uses: golangci/golangci-lint-action@3a919529898de77ec3da873e3063ca4b10e7f5cc # v3.7.0
         with:
-          version: v1.51.2
+          version: v1.55.2
           only-new-issues: false
           args: --timeout 5m --config .golangci.yml

.golangci.yml

@@ -39,5 +39,6 @@ linters:
     - tparallel
     - nilerr
     - exhaustruct
+    - depguard
 service:
-  golangci-lint-version: 1.45.x
+  golangci-lint-version: 1.55.x

Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.19 as builder
+FROM golang:1.21 as builder
 WORKDIR /workspace
 COPY go.mod go.mod
 COPY go.sum go.sum
@@ -11,7 +11,7 @@ ARG TARGETARCH
 ARG LDFLAGS=""
 RUN CGO_ENABLED=0 GOOS=linux GOARCH=${TARGETARCH} GO111MODULE=on go build -trimpath -ldflags="${LDFLAGS}" -gcflags "${GCFLAGS}" -a -o capsule-proxy main.go
 
-FROM golang:1.19 as dlv
+FROM golang:1.21 as dlv
 RUN CGO_ENABLED=0 go install github.com/go-delve/delve/cmd/dlv@latest
 WORKDIR /
 COPY --from=builder /workspace/capsule-proxy .

Makefile

@@ -258,7 +258,7 @@ mkcert: ## Download mkcert locally if necessary.
 	$(call go-install-tool,$(MKCERT),filippo.io/mkcert@$(MKCERT_VERSION))
 
 GOLANGCI_LINT = $(shell pwd)/bin/golangci-lint
-GOLANGCI_LINT_VERSION = v1.51.2
+GOLANGCI_LINT_VERSION = v1.55.2
 golangci-lint: ## Download golangci-lint locally if necessary.
 	$(call go-install-tool,$(GOLANGCI_LINT),github.com/golangci/golangci-lint/cmd/golangci-lint@$(GOLANGCI_LINT_VERSION))
 

go.mod

@@ -1,6 +1,6 @@
 module github.com/projectcapsule/capsule-proxy
 
-go 1.19
+go 1.21
 
 require (
 	github.com/go-logr/logr v1.3.0

go.sum

@@ -29,6 +29,7 @@ github.com/dgryski/go-sip13 v0.0.0-20181026042036-e10d5fee7954/go.mod h1:vAd38F8
 github.com/emicklei/go-restful/v3 v3.11.0 h1:rAQeMHw1c7zTmncogyy8VvRZwtkmkZ4FxERmMY4rD+g=
 github.com/emicklei/go-restful/v3 v3.11.0/go.mod h1:6n3XBCmQQb25CM2LCACGz8ukIrRry+4bhvbpWn3mrbc=
 github.com/evanphx/json-patch v5.6.0+incompatible h1:jBYDEEiFBPxA0v50tFdvOzQQTCvpL6mnFh5mB2/l16U=
+github.com/evanphx/json-patch v5.6.0+incompatible/go.mod h1:50XU6AFN0ol/bzJsmQLiYLvXMP4fmwYFNcr97nuDLSk=
 github.com/evanphx/json-patch/v5 v5.7.0 h1:nJqP7uwL84RJInrohHfW0Fx3awjbm8qZeFv0nW9SYGc=
 github.com/evanphx/json-patch/v5 v5.7.0/go.mod h1:VNkHZ/282BpEyt/tObQO8s5CMPmYYq14uClGH4abBuQ=
 github.com/felixge/httpsnoop v1.0.1/go.mod h1:m8KPJKqk1gH5J9DgRY2ASl2lWCfGKXixSwevea8zH2U=
@@ -55,6 +56,7 @@ github.com/go-openapi/swag v0.22.3 h1:yMBqmnQ0gyZvEb/+KzuWZOXgllrXT4SADYbvDaXHv/
 github.com/go-openapi/swag v0.22.3/go.mod h1:UzaqsxGiab7freDnrUUra0MwWfN/q7tE4j+VcZ0yl14=
 github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
 github.com/go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572 h1:tfuBGBXKqDEevZMzYi5KSi8KkcZtzBcTgAUUtapy0OI=
+github.com/go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572/go.mod h1:9Pwr4B2jHnOSGXyyzV8ROjYa2ojvAY6HCGYYfMoC3Ls=
 github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
 github.com/gogo/protobuf v1.2.1/go.mod h1:hp+jE20tsWTFYpLwKvXlhS1hjn+gTNwPg2I6zVXpSg4=
 github.com/gogo/protobuf v1.3.2 h1:Ov1cvc58UF3b5XjBnZv7+opcTcQFZebYjWzi34vdm4Q=
@@ -81,6 +83,7 @@ github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/
 github.com/google/gofuzz v1.2.0 h1:xRy4A+RhZaiKjJ1bPfwQ8sedCA+YS2YcCHW6ec7JMi0=
 github.com/google/gofuzz v1.2.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
 github.com/google/pprof v0.0.0-20210720184732-4bb14d4b1be1 h1:K6RDEckDVWvDI9JAJYCmNdQXq6neHJOYx3V6jnqNEec=
+github.com/google/pprof v0.0.0-20210720184732-4bb14d4b1be1/go.mod h1:kpwsk12EmLew5upagYY7GY0pfYCcupk39gWOCRROcvE=
 github.com/google/uuid v1.3.1 h1:KjJaJ9iWZ3jOFZIf1Lqf4laDRCasjl0BCmnEGxkdLb4=
 github.com/google/uuid v1.3.1/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/gorilla/handlers v1.5.1 h1:9lRY6j8DEeeBT10CvO9hGW0gmky0BprnvDI5vfhUHH4=
@@ -98,6 +101,7 @@ github.com/imdario/mergo v0.3.13 h1:lFzP57bqS/wsqKssCGmtLAb8A0wKjLGrve2q3PPVcBk=
 github.com/imdario/mergo v0.3.13/go.mod h1:4lJ1jqUDcsbIECGy0RUJAXNIhg+6ocWgb1ALK2O4oXg=
 github.com/inconshreveable/mousetrap v1.0.0/go.mod h1:PxqpIevigyE2G7u3NXJIT2ANytuPF1OarO4DADm73n8=
 github.com/inconshreveable/mousetrap v1.1.0 h1:wN+x4NVGpMsO7ErUn/mUI3vEoE6Jt13X2s0bqwp9tc8=
+github.com/inconshreveable/mousetrap v1.1.0/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw=
 github.com/jonboulle/clockwork v0.1.0/go.mod h1:Ii8DK3G1RaLaWxj9trq07+26W01tbo22gdxWY5EU2bo=
 github.com/josharian/intern v1.0.0 h1:vlS4z54oSdjm0bgjRigI+G1HpF+tI+9rE5LLzOg8HmY=
 github.com/josharian/intern v1.0.0/go.mod h1:5DoeVV0s6jJacbCEi61lwdGj/aVlrQvzHFFd8Hwg//Y=
@@ -112,6 +116,7 @@ github.com/kr/logfmt v0.0.0-20140226030751-b84e30acd515/go.mod h1:+0opPa2QZZtGFB
 github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
 github.com/kr/pretty v0.2.1/go.mod h1:ipq/a2n7PKx3OHsz4KJII5eveXtPO4qwEXGdVfWzfnI=
 github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
+github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk=
 github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
 github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
 github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
@@ -137,9 +142,11 @@ github.com/onsi/ginkgo v1.6.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+W
 github.com/onsi/ginkgo v1.12.0 h1:Iw5WCbBcaAAd0fpRb1c9r5YCylv4XDoCSigm1zLevwU=
 github.com/onsi/ginkgo v1.12.0/go.mod h1:oUhWkIvk5aDxtKvDDuw8gItl8pKl42LzjC9KZE0HfGg=
 github.com/onsi/ginkgo/v2 v2.13.2 h1:Bi2gGVkfn6gQcjNjZJVO8Gf0FHzMPf2phUei9tejVMs=
+github.com/onsi/ginkgo/v2 v2.13.2/go.mod h1:XStQ8QcGwLyF4HdfcZB8SFOS/MWCgDuXMSBe6zrvLgM=
 github.com/onsi/gomega v1.7.1/go.mod h1:XdKZgCCFLUoM/7CFJVPcG8C1xQ1AJ0vpAezJrB7JYyY=
 github.com/onsi/gomega v1.9.0/go.mod h1:Ho0h+IUsWyvy1OpqCwxlQ/21gkhVunqlU8fDGcoTdcA=
 github.com/onsi/gomega v1.30.0 h1:hvMK7xYz4D3HapigLTeGdId/NcfQx1VHMJc60ew99+8=
+github.com/onsi/gomega v1.30.0/go.mod h1:9sxs+SwGrKI0+PWe4Fxa9tFQQBG5xSsSbMXOI8PPpoQ=
 github.com/pelletier/go-toml v1.2.0/go.mod h1:5z9KED0ma1S8pY6P1sdut58dfprrGBbd/94hg7ilaic=
 github.com/pkg/errors v0.8.0/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
@@ -168,16 +175,19 @@ github.com/prometheus/procfs v0.11.1/go.mod h1:eesXgaPo1q7lBpVMoMy0ZOFTth9hBn4W/
 github.com/prometheus/tsdb v0.7.1/go.mod h1:qhTCs0VvXwvX/y3TZrWD7rabWM+ijKTux40TwIPHuXU=
 github.com/rogpeppe/fastuuid v0.0.0-20150106093220-6724a57986af/go.mod h1:XWv6SoW27p1b0cqNHllgS5HIMJraePCO15w5zCzIWYg=
 github.com/rogpeppe/go-internal v1.10.0 h1:TMyTOH3F/DB16zRVcYyreMH6GnZZrwQVAoYjRBZyWFQ=
+github.com/rogpeppe/go-internal v1.10.0/go.mod h1:UQnix2H7Ngw/k4C5ijL5+65zddjncjaFoBhdsK/akog=
 github.com/russross/blackfriday/v2 v2.0.1/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
 github.com/shurcooL/sanitized_anchor_name v1.0.0/go.mod h1:1NzhyTcUVG4SuEtjjoZeVRXNmyL/1OwPU0+IJeTBvfc=
 github.com/sirupsen/logrus v1.2.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPxbbu5VWo=
 github.com/sirupsen/logrus v1.9.0 h1:trlNQbNUG3OdDrDil03MCb1H2o9nJ1x4/5LYw7byDE0=
+github.com/sirupsen/logrus v1.9.0/go.mod h1:naHLuLoDiP4jHNo9R0sCBMtWGeIprob74mVsIT4qYEQ=
 github.com/soheilhy/cmux v0.1.4/go.mod h1:IM3LyeVVIOuxMH7sFAkER9+bJ4dT7Ms6E4xg4kGIyLM=
 github.com/spaolacci/murmur3 v0.0.0-20180118202830-f09979ecbc72/go.mod h1:JwIasOWyU6f++ZhiEuf87xNszmSA2myDM2Kzu9HwQUA=
 github.com/spf13/afero v1.1.2/go.mod h1:j4pytiNVoe2o6bmDsKpLACNPDBIoEAkihy7loJ1B0CQ=
 github.com/spf13/cast v1.3.0/go.mod h1:Qx5cxh0v+4UWYiBimWS+eyWzqEqokIECu5etghLkUJE=
 github.com/spf13/cobra v0.0.7/go.mod h1:/6GTrnGXV9HjY+aR4k0oJ5tcvakLuG6EuKReYlHNrgE=
 github.com/spf13/cobra v1.7.0 h1:hyqWnYt1ZQShIddO5kBpj3vu05/++x6tJ6dg8EC572I=
+github.com/spf13/cobra v1.7.0/go.mod h1:uLxZILRyS/50WlhOIKD7W6V5bgeIt+4sICxh6uRMrb0=
 github.com/spf13/jwalterweatherman v1.0.0/go.mod h1:cQK4TGJAtQXfYWX+Ddv3mKDzgVb68N+wFjFa4jdeBTo=
 github.com/spf13/pflag v1.0.3/go.mod h1:DYY7MBk1bdzusC3SYhjObp+wFpr4gzcvqqNjLnInEg4=
 github.com/spf13/pflag v1.0.5 h1:iy+VFUOCP1a+8yFto/drg2CJ5u0yRoB7fZw3DKv/JXA=
@@ -194,6 +204,7 @@ github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/
 github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
 github.com/stretchr/testify v1.8.1/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
 github.com/stretchr/testify v1.8.4 h1:CcVxjf3Q8PM0mHUKJCdn+eZZtm5yQwehR5yeSVQQcUk=
+github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
 github.com/thediveo/enumflag v0.10.1 h1:DB3Ag69VZ7BCv6jzKECrZ0ebZrHLzFRMIFYt96s4OxM=
 github.com/thediveo/enumflag v0.10.1/go.mod h1:KyVhQUPzreSw85oJi2uSjFM0ODLKXBH0rPod7zc2pmI=
 github.com/tmc/grpc-websocket-proxy v0.0.0-20190109142713-0ad062ec5ee5/go.mod h1:ncp9v5uamzpCO7NfCPTXjqaC+bZgJeR0sMTm6dMHP7U=
@@ -208,6 +219,7 @@ go.uber.org/atomic v1.4.0/go.mod h1:gD2HeocX3+yG+ygLZcrzQJaqmWj9AIm7n08wl/qW/PE=
 go.uber.org/atomic v1.7.0/go.mod h1:fEN4uk6kAWBTFdckzkM89CLk9XfWZrxpCo0nPH17wJc=
 go.uber.org/goleak v1.1.11/go.mod h1:cwTWslyiVhfpKIDGSZEM2HlOvcqm+tG4zioyIeLoqMQ=
 go.uber.org/goleak v1.3.0 h1:2K3zAYmnTNqV73imy9J1T3WC+gmCePx2hEGkimedGto=
+go.uber.org/goleak v1.3.0/go.mod h1:CoHD4mav9JJNrW/WLlf7HGZPjdw8EucARQHekz1X6bE=
 go.uber.org/multierr v1.1.0/go.mod h1:wR5kodmAFQ0UK8QlbwjlSNy0Z68gJhDJUG5sjR94q/0=
 go.uber.org/multierr v1.6.0/go.mod h1:cdWPpRnG4AhwMwsgIHip0KRBQjJy5kYEpYjJxpXp9iU=
 go.uber.org/multierr v1.11.0 h1:blXXJkSxSSfBVBlC76pxqeO+LN3aDfLQo+309xJstO0=
@@ -287,6 +299,7 @@ golang.org/x/tools v0.0.0-20200619180055-7c47624df98f/go.mod h1:EkVYQZoAsY45+roY
 golang.org/x/tools v0.0.0-20210106214847-113979e3529a/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
 golang.org/x/tools v0.1.5/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
 golang.org/x/tools v0.14.0 h1:jvNa2pY0M4r62jkRQ6RwEZZyPcymeL9XZMLBbV7U2nc=
+golang.org/x/tools v0.14.0/go.mod h1:uYBEerGOWcJyEORxN+Ek8+TT266gXkNlHdJBwexUsBg=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=

internal/modules/tenants/const.go

@@ -0,0 +1,8 @@
+// Copyright 2020-2023 Project Capsule Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package tenants
+
+const (
+	basePath = "/apis/capsule.clastix.io/v1beta2/{endpoint:tenants/?}"
+)

internal/modules/tenants/get.go

@@ -0,0 +1,68 @@
+// Copyright 2020-2023 Project Capsule Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package tenants
+
+import (
+	"net/http"
+
+	"github.com/go-logr/logr"
+	"github.com/gorilla/mux"
+	capsulev1beta2 "github.com/projectcapsule/capsule/api/v1beta2"
+	corev1 "k8s.io/api/core/v1"
+	"k8s.io/apimachinery/pkg/labels"
+	"k8s.io/apimachinery/pkg/runtime/schema"
+	"k8s.io/apimachinery/pkg/util/sets"
+	ctrl "sigs.k8s.io/controller-runtime"
+	"sigs.k8s.io/controller-runtime/pkg/client"
+
+	"github.com/projectcapsule/capsule-proxy/internal/modules"
+	"github.com/projectcapsule/capsule-proxy/internal/modules/errors"
+	"github.com/projectcapsule/capsule-proxy/internal/request"
+	"github.com/projectcapsule/capsule-proxy/internal/tenant"
+)
+
+type get struct {
+	capsuleLabel string
+	client       client.Reader
+	log          logr.Logger
+	gk           schema.GroupKind
+}
+
+func Get(client client.Reader) modules.Module {
+	label, _ := capsulev1beta2.GetTypeLabel(&capsulev1beta2.Tenant{})
+
+	return &get{
+		capsuleLabel: label,
+		client:       client,
+		log:          ctrl.Log.WithName("tenant_get"),
+		gk: schema.GroupKind{
+			Group: corev1.GroupName,
+			Kind:  "tenants",
+		},
+	}
+}
+
+func (l get) Path() string {
+	return "/apis/capsule.clastix.io/v1beta2/tenants/{name}"
+}
+
+func (l get) Methods() []string {
+	return []string{http.MethodGet}
+}
+
+func (l get) Handle(proxyTenants []*tenant.ProxyTenant, proxyRequest request.Request) (selector labels.Selector, err error) {
+	name := mux.Vars(proxyRequest.GetHTTPRequest())["name"]
+
+	userTenants := sets.New[string]()
+
+	for _, tnt := range proxyTenants {
+		userTenants.Insert(tnt.Tenant.Name)
+	}
+
+	if userTenants.Has(name) {
+		return labels.NewSelector(), nil
+	}
+
+	return nil, errors.NewNotFoundError(name, l.gk)
+}

internal/modules/tenants/list.go

@@ -0,0 +1,66 @@
+// Copyright 2020-2023 Project Capsule Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package tenants
+
+import (
+	"net/http"
+
+	"github.com/go-logr/logr"
+	corev1 "k8s.io/api/core/v1"
+	"k8s.io/apimachinery/pkg/labels"
+	"k8s.io/apimachinery/pkg/runtime/schema"
+	"k8s.io/apimachinery/pkg/selection"
+	ctrl "sigs.k8s.io/controller-runtime"
+
+	"github.com/projectcapsule/capsule-proxy/internal/modules"
+	"github.com/projectcapsule/capsule-proxy/internal/modules/errors"
+	"github.com/projectcapsule/capsule-proxy/internal/request"
+	"github.com/projectcapsule/capsule-proxy/internal/tenant"
+)
+
+type list struct {
+	log logr.Logger
+	gk  schema.GroupKind
+}
+
+func List() modules.Module {
+	return &list{
+		log: ctrl.Log.WithName("tenant_list"),
+		gk: schema.GroupKind{
+			Group: corev1.GroupName,
+			Kind:  "tenants",
+		},
+	}
+}
+
+func (l list) Path() string {
+	return basePath
+}
+
+func (l list) Methods() []string {
+	return []string{http.MethodGet}
+}
+
+func (l list) Handle(proxyTenants []*tenant.ProxyTenant, _ request.Request) (selector labels.Selector, err error) {
+	userTenants := make([]string, 0, len(proxyTenants))
+
+	for _, tnt := range proxyTenants {
+		userTenants = append(userTenants, tnt.Tenant.Name)
+	}
+
+	var r *labels.Requirement
+
+	switch {
+	case len(userTenants) > 0:
+		r, err = labels.NewRequirement("kubernetes.io/metadata.name", selection.In, userTenants)
+	default:
+		r, err = labels.NewRequirement("dontexistsignoreme", selection.Exists, []string{})
+	}
+
+	if err != nil {
+		return nil, errors.NewBadRequest(err, l.gk)
+	}
+
+	return labels.NewSelector().Add(*r), nil
+}

internal/request/http_test.go

@@ -20,23 +20,23 @@ import (
 
 type testClient func(ctx context.Context, obj client.Object) error
 
-func (t testClient) Delete(ctx context.Context, obj client.Object, opts ...client.DeleteOption) error {
+func (t testClient) Delete(ctx context.Context, obj client.Object, _ ...client.DeleteOption) error {
 	return t(ctx, obj)
 }
 
-func (t testClient) Update(ctx context.Context, obj client.Object, opts ...client.UpdateOption) error {
+func (t testClient) Update(ctx context.Context, obj client.Object, _ ...client.UpdateOption) error {
 	return t(ctx, obj)
 }
 
-func (t testClient) Patch(ctx context.Context, obj client.Object, patch client.Patch, opts ...client.PatchOption) error {
+func (t testClient) Patch(ctx context.Context, obj client.Object, _ client.Patch, _ ...client.PatchOption) error {
 	return t(ctx, obj)
 }
 
-func (t testClient) DeleteAllOf(ctx context.Context, obj client.Object, opts ...client.DeleteAllOfOption) error {
+func (t testClient) DeleteAllOf(ctx context.Context, obj client.Object, _ ...client.DeleteAllOfOption) error {
 	return t(ctx, obj)
 }
 
-func (t testClient) Create(ctx context.Context, obj client.Object, opts ...client.CreateOption) error {
+func (t testClient) Create(ctx context.Context, obj client.Object, _ ...client.CreateOption) error {
 	return t(ctx, obj)
 }
 

internal/webserver/middleware/metrics_test.go

@@ -14,7 +14,7 @@ import (
 	model "github.com/prometheus/client_model/go"
 )
 
-func dummyHandler(w http.ResponseWriter, r *http.Request) {
+func dummyHandler(w http.ResponseWriter, _ *http.Request) {
 	_, _ = w.Write([]byte("hello"))
 	w.WriteHeader(http.StatusOK)
 }

internal/webserver/webserver.go

@@ -42,6 +42,7 @@ import (
 	"github.com/projectcapsule/capsule-proxy/internal/modules/priorityclass"
 	"github.com/projectcapsule/capsule-proxy/internal/modules/runtimeclass"
 	"github.com/projectcapsule/capsule-proxy/internal/modules/storageclass"
+	"github.com/projectcapsule/capsule-proxy/internal/modules/tenants"
 	"github.com/projectcapsule/capsule-proxy/internal/options"
 	req "github.com/projectcapsule/capsule-proxy/internal/request"
 	"github.com/projectcapsule/capsule-proxy/internal/tenant"
@@ -223,6 +224,8 @@ func (n *kubeFilter) registerModules(ctx context.Context, root *mux.Router) {
 		metric.Get(n.reader),
 		metric.List(n.reader),
 		pod.Get(n.reader),
+		tenants.List(),
+		tenants.Get(n.reader),
 	}
 	for _, i := range modList {
 		mod := i