Merge pull request #45 from s-urbaniak/bump-v0.9.0

Bump v0.9.0

.github/workflows/build.yml

@@ -64,6 +64,10 @@ jobs:
       run: |
         VERSION=local make container
         kind load docker-image ${QUAY_PATH}:local
+        until docker exec $(kind get nodes) crictl images | grep "${QUAY_PATH}"; do
+          echo "no kube-rbac-proxy image"
+          sleep 1
+        done
         make test-e2e
   publish:
     runs-on: ubuntu-latest
@@ -74,22 +78,15 @@ jobs:
       - generate
       - build
       - unit-tests
-      # Disable e2e-tests job requirement to avoid having flakes impacting
-      # image publication.
-      # This requirement should be uncommented once the flaky tests are fixed.
-      # - e2e-tests
+      - e2e-tests
     steps:
       - name: Checkout
         uses: actions/checkout@v2
       - name: Login to Quay.io
-        uses: docker/login-actions@v1
+        uses: docker/login-action@v1
         with:
           registry: quay.io
           username: ${{ secrets.QUAY_USERNAME }}
           password: ${{ secrets.QUAY_PASSWORD }}
       - name: Build images and push
-        run: |
-          TAG="$(git rev-parse --abbrev-ref HEAD | tr / -)-$(date +%Y-%m-%d)-$(git rev-parse --short HEAD)"
-          ID="$(docker images ${QUAY_PATH}:local --format "{{.ID}}")"
-          docker tag $ID ${QUAY_PATH}:$TAG
-          docker push ${QUAY_PATH}:$TAG
+        run: ./scripts/publish.sh

CHANGELOG.md

@@ -1,3 +1,9 @@
+## 0.9.0 / 2021-04-27
+
+* [FEATURE] Support rewrites using HTTP headers in addition to query parameters. #104
+* [FEATURE] Support pass-through of client certificates. #113
+* [FEATURE] Support TLS 1.3. #120
+
 ## 0.8.0 / 2020-11-03
 
 * [FEATURE] Add ability with the new `--ignore-paths` flag to define paths for which kube-rbac-proxy will proxy without performing authn/authz. This cannot be used with `--allow-paths`. #91

Makefile

@@ -68,11 +68,11 @@ manifest-push: manifest-tool
 push: crossbuild manifest-tool $(addprefix push-,$(ALL_ARCH)) manifest-push
 
 curl-container:
-	docker build -f ./examples/example-client/Dockerfile -t quay.io/brancz/krp-curl:v0.0.1 .
+	docker build -f ./examples/example-client/Dockerfile -t quay.io/brancz/krp-curl:v0.0.2 .
 
 run-curl-container:
 	@echo 'Example: curl -v -s -k -H "Authorization: Bearer `cat /var/run/secrets/kubernetes.io/serviceaccount/token`" https://kube-rbac-proxy.default.svc:8443/metrics'
-	kubectl run -i -t krp-curl --image=quay.io/brancz/krp-curl:v0.0.1 --restart=Never --command -- /bin/sh
+	kubectl run -i -t krp-curl --image=quay.io/brancz/krp-curl:v0.0.2 --restart=Never --command -- /bin/sh
 
 grpcc-container:
 	docker build -f ./examples/grpcc/Dockerfile -t mumoshu/grpcc:v0.0.1 .

VERSION

@@ -1 +1 @@
-v0.8.0
+v0.9.0

examples/example-client-urlquery/Dockerfile

@@ -0,0 +1,5 @@
+FROM alpine:3.7
+
+RUN apk add --no-cache curl
+
+CMD curl -v -s -k -H "Authorization: Bearer `cat /var/run/secrets/kubernetes.io/serviceaccount/token`" https://kube-rbac-proxy.default.svc:8443/metrics?namespace=default

examples/example-client/Dockerfile

@@ -1,4 +1,4 @@
-FROM alpine:3.7
+FROM alpine:3.12
 
 RUN apk add --no-cache curl
 

examples/non-resource-url-token-request/README.md

@@ -78,7 +78,7 @@ spec:
       serviceAccountName: kube-rbac-proxy
       containers:
       - name: kube-rbac-proxy
-        image: quay.io/brancz/kube-rbac-proxy:v0.8.0
+        image: quay.io/brancz/kube-rbac-proxy:v0.9.0
         args:
         - "--secure-listen-address=0.0.0.0:8443"
         - "--upstream=http://127.0.0.1:8081/"
@@ -144,7 +144,7 @@ spec:
       restartPolicy: Never
       containers:
       - name: krp-curl
-        image: quay.io/brancz/krp-curl:v0.0.1
+        image: quay.io/brancz/krp-curl:v0.0.2
         command:
         - /bin/sh
         - -c
@@ -237,7 +237,7 @@ spec:
       restartPolicy: Never
       containers:
       - name: krp-curl
-        image: quay.io/brancz/krp-curl:v0.0.1
+        image: quay.io/brancz/krp-curl:v0.0.2
 ```
 
 Then the log output should look something along the lines of:

examples/non-resource-url-token-request/client.yaml

@@ -10,7 +10,7 @@ spec:
       restartPolicy: Never
       containers:
       - name: krp-curl
-        image: quay.io/brancz/krp-curl:v0.0.1
+        image: quay.io/brancz/krp-curl:v0.0.2
         command:
         - /bin/sh
         - -c

examples/non-resource-url-token-request/deployment.yaml

@@ -63,7 +63,7 @@ spec:
       serviceAccountName: kube-rbac-proxy
       containers:
       - name: kube-rbac-proxy
-        image: quay.io/brancz/kube-rbac-proxy:v0.8.0
+        image: quay.io/brancz/kube-rbac-proxy:v0.9.0
         args:
         - "--secure-listen-address=0.0.0.0:8443"
         - "--upstream=http://127.0.0.1:8081/"

examples/non-resource-url-token-request/wrong-client.yaml

@@ -10,4 +10,4 @@ spec:
       restartPolicy: Never
       containers:
       - name: krp-curl
-        image: quay.io/brancz/krp-curl:v0.0.1
+        image: quay.io/brancz/krp-curl:v0.0.2

examples/non-resource-url/README.md

@@ -78,7 +78,7 @@ spec:
       serviceAccountName: kube-rbac-proxy
       containers:
       - name: kube-rbac-proxy
-        image: quay.io/brancz/kube-rbac-proxy:v0.8.0
+        image: quay.io/brancz/kube-rbac-proxy:v0.9.0
         args:
         - "--secure-listen-address=0.0.0.0:8443"
         - "--upstream=http://127.0.0.1:8081/"
@@ -142,7 +142,7 @@ spec:
     spec:
       containers:
       - name: krp-curl
-        image: quay.io/brancz/krp-curl:v0.0.1
+        image: quay.io/brancz/krp-curl:v0.0.2
       restartPolicy: Never
   backoffLimit: 4
 ```

examples/non-resource-url/client.yaml

@@ -9,6 +9,6 @@ spec:
     spec:
       containers:
       - name: krp-curl
-        image: quay.io/brancz/krp-curl:v0.0.1
+        image: quay.io/brancz/krp-curl:v0.0.2
       restartPolicy: Never
   backoffLimit: 4

examples/non-resource-url/deployment.yaml

@@ -60,7 +60,7 @@ spec:
       serviceAccountName: kube-rbac-proxy
       containers:
       - name: kube-rbac-proxy
-        image: quay.io/brancz/kube-rbac-proxy:v0.8.0
+        image: quay.io/brancz/kube-rbac-proxy:v0.9.0
         args:
         - "--secure-listen-address=0.0.0.0:8443"
         - "--upstream=http://127.0.0.1:8081/"

examples/non-resource-url/non-resource-url/README.md

@@ -142,7 +142,7 @@ spec:
     spec:
       containers:
       - name: krp-curl
-        image: quay.io/brancz/krp-curl:v0.0.1
+        image: quay.io/brancz/krp-curl:v0.0.2
       restartPolicy: Never
   backoffLimit: 4
 ```

examples/non-resource-url/non-resource-url/client.yaml

@@ -9,6 +9,6 @@ spec:
     spec:
       containers:
       - name: krp-curl
-        image: quay.io/brancz/krp-curl:v0.0.1
+        image: quay.io/brancz/krp-curl:v0.0.2
       restartPolicy: Never
   backoffLimit: 4

examples/oidc/deployment.yaml

@@ -63,7 +63,7 @@ spec:
       serviceAccountName: kube-rbac-proxy
       containers:
       - name: kube-rbac-proxy
-        image: quay.io/brancz/kube-rbac-proxy:v0.8.0
+        image: quay.io/brancz/kube-rbac-proxy:v0.9.0
         args:
         - "--insecure-listen-address=0.0.0.0:8444"
         - "--upstream=http://127.0.0.1:8081/"

examples/resource-attributes/README.md

@@ -92,7 +92,7 @@ spec:
       serviceAccountName: kube-rbac-proxy
       containers:
       - name: kube-rbac-proxy
-        image: quay.io/brancz/kube-rbac-proxy:v0.8.0
+        image: quay.io/brancz/kube-rbac-proxy:v0.9.0
         args:
         - "--secure-listen-address=0.0.0.0:8443"
         - "--upstream=http://127.0.0.1:8081/"
@@ -165,7 +165,7 @@ spec:
     spec:
       containers:
       - name: krp-curl
-        image: quay.io/brancz/krp-curl:v0.0.1
+        image: quay.io/brancz/krp-curl:v0.0.2
       restartPolicy: Never
   backoffLimit: 4
 ```

examples/resource-attributes/client.yaml

@@ -9,6 +9,6 @@ spec:
     spec:
       containers:
       - name: krp-curl
-        image: quay.io/brancz/krp-curl:v0.0.1
+        image: quay.io/brancz/krp-curl:v0.0.2
       restartPolicy: Never
   backoffLimit: 4

examples/resource-attributes/deployment.yaml

@@ -74,7 +74,7 @@ spec:
       serviceAccountName: kube-rbac-proxy
       containers:
       - name: kube-rbac-proxy
-        image: quay.io/brancz/kube-rbac-proxy:v0.8.0
+        image: quay.io/brancz/kube-rbac-proxy:v0.9.0
         args:
         - "--secure-listen-address=0.0.0.0:8443"
         - "--upstream=http://127.0.0.1:8081/"

examples/rewrites/README.md

@@ -2,9 +2,9 @@
 
 > Note to try this out with minikube, make sure you enable RBAC correctly as explained [here](../minikube-rbac).
 
-RBAC differentiates in two types, that need to be authorized, resources and non-resoruces. A resource request authorization, could for example be, that a requesting entity needs to be authorized to perform the `get` action on a particular Kubernetes Deployment.
+RBAC differentiates in two types, that need to be authorized, resources and non-resources. A resource request authorization, could for example be, that a requesting entity needs to be authorized to perform the `get` action on a particular Kubernetes Deployment.
 
-Take the following example. We want to deploy a [prometheus-example-app](https://github.com/brancz/prometheus-example-app), and protect it with the kube-rbac-proxy. In this example we require a requesting entity to be allowed to call the `proxy` subresource on a Kubernetes Service called `kube-rbac-proxy`. This is configured in the file passed to the kube-rbac-proxy with the `--config-file` flag. Additionally the `--upstream` flag has to be set to configure the application that should be proxied to on successful authentication as well as authorization.
+Take the following example. We want to deploy a [prometheus-example-app](https://github.com/brancz/prometheus-example-app), and protect it with the kube-rbac-proxy. In this example we require a requesting entity to be allowed to call the `metrics` subresource on a Kubernetes Namespace, the name of which is passed by the HTTP URL query parameter `namespace`. This is configured in the file passed to the kube-rbac-proxy with the `--config-file` flag.  Additionally the `--upstream` flag has to be set to configure the application that should be proxied to on successful authentication as well as authorization.
 
 The kube-rbac-proxy itself also requires RBAC access, in order to perform TokenReviews as well as SubjectAccessReviews. These are the APIs available from the Kubernetes API to authenticate and then validate the authorization of an entity.
 
@@ -94,7 +94,7 @@ spec:
       serviceAccountName: kube-rbac-proxy
       containers:
       - name: kube-rbac-proxy
-        image: quay.io/brancz/kube-rbac-proxy:v0.8.0
+        image: quay.io/brancz/kube-rbac-proxy:v0.9.0
         args:
         - "--secure-listen-address=0.0.0.0:8443"
         - "--upstream=http://127.0.0.1:8081/"
@@ -121,7 +121,7 @@ spec:
 
 Once the prometheus-example-app is up and running, we can test it. In order to test it, we deploy a Job, that performs a `curl` against the above deployment. Because it has the correct RBAC roles, the request will succeed.
 
-The Dockerfile of this container can be found [here](../example-client/Dockerfile).
+The Dockerfile of this container can be found [here](../example-client-urlquery/Dockerfile).
 
 ```bash
 $ kubectl create -f client-rbac.yaml

examples/rewrites/deployment.yaml

@@ -76,7 +76,7 @@ spec:
       serviceAccountName: kube-rbac-proxy
       containers:
       - name: kube-rbac-proxy
-        image: quay.io/brancz/kube-rbac-proxy:v0.8.0
+        image: quay.io/brancz/kube-rbac-proxy:v0.9.0
         args:
         - "--secure-listen-address=0.0.0.0:8443"
         - "--upstream=http://127.0.0.1:8081/"

go.mod

@@ -4,6 +4,7 @@ go 1.13
 
 require (
 	github.com/ghodss/yaml v1.0.0
+	github.com/google/go-cmp v0.5.4
 	github.com/oklog/run v1.0.0
 	github.com/spf13/pflag v1.0.5
 	golang.org/x/net v0.0.0-20200707034311-ab3426394381

go.sum

@@ -144,6 +144,8 @@ github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMyw
 github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
 github.com/google/go-cmp v0.4.0 h1:xsAVV57WRhGj6kEIi8ReJzQlHHqcBYCElAvkovg3B/4=
 github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+github.com/google/go-cmp v0.5.4 h1:L8R9j+yAqZuZjsqh/z+F1NCffTKKLShY6zXTItVIZ8M=
+github.com/google/go-cmp v0.5.4/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/gofuzz v1.0.0 h1:A8PeW59pxE9IoFRqBp37U+mSNaQoZ46F1f0f863XSXw=
 github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
 github.com/google/gofuzz v1.1.0 h1:Hsa8mG0dQ46ij8Sl2AYJDUv1oA9/d6Vk+3LG99Oe02g=

main.go

@@ -20,7 +20,6 @@ import (
 	"context"
 	"crypto/tls"
 	"flag"
-	"fmt"
 	"io/ioutil"
 	"net"
 	"net/http"
@@ -78,19 +77,6 @@ type configfile struct {
 	AuthorizationConfig *authz.Config `json:"authorization,omitempty"`
 }
 
-var versions = map[string]uint16{
-	"VersionTLS10": tls.VersionTLS10,
-	"VersionTLS11": tls.VersionTLS11,
-	"VersionTLS12": tls.VersionTLS12,
-}
-
-func tlsVersion(versionName string) (uint16, error) {
-	if version, ok := versions[versionName]; ok {
-		return version, nil
-	}
-	return 0, fmt.Errorf("unknown tls version %q", versionName)
-}
-
 func main() {
 	cfg := config{
 		auth: proxy.Config{
@@ -298,7 +284,7 @@ func main() {
 				})
 			}
 
-			version, err := tlsVersion(cfg.tls.minVersion)
+			version, err := k8sapiflag.TLSVersion(cfg.tls.minVersion)
 			if err != nil {
 				klog.Fatalf("TLS version invalid: %v", err)
 			}
@@ -310,6 +296,7 @@ func main() {
 
 			srv.TLSConfig.CipherSuites = cipherSuiteIDs
 			srv.TLSConfig.MinVersion = version
+			srv.TLSConfig.ClientAuth = tls.RequestClientCert
 
 			if err := http2.ConfigureServer(srv, nil); err != nil {
 				klog.Fatalf("failed to configure http2 server: %v", err)

pkg/authz/auth.go

@@ -36,6 +36,7 @@ type Config struct {
 // rewritten on a given request.
 type SubjectAccessReviewRewrites struct {
 	ByQueryParameter *QueryParameterRewriteConfig `json:"byQueryParameter,omitempty"`
+	ByHTTPHeader     *HTTPHeaderRewriteConfig     `json:"byHttpHeader,omitempty"`
 }
 
 // QueryParameterRewriteConfig describes which HTTP URL query parameter is to
@@ -44,6 +45,12 @@ type QueryParameterRewriteConfig struct {
 	Name string `json:"name,omitempty"`
 }
 
+// HTTPHeaderRewriteConfig describes which HTTP header is to
+// be used to rewrite a SubjectAccessReview on a given request.
+type HTTPHeaderRewriteConfig struct {
+	Name string `json:"name,omitempty"`
+}
+
 // ResourceAttributes describes attributes available for resource request authorization
 type ResourceAttributes struct {
 	Namespace   string `json:"namespace,omitempty"`