Merge pull request #141 from aquasecurity/version-default

Default version

.goreleaser.yml

@@ -13,6 +13,7 @@ nfpm:
   vendor: Aqua Security
   description: "The Kubernetes Bench for Security is a Go application that checks whether Kubernetes is deployed according to security best practices"
   license: Apache-2.0
+  homepage: https://github.com/aquasecurity/kube-bench
   formats:
     - deb
     - rpm

.travis.yml

@@ -1,6 +1,11 @@
 ---
 language: go
 
+sudo: required
+
+services:
+  - docker 
+
 notifications:
   email: false
 
@@ -10,12 +15,15 @@ before_install:
   - gem install --no-ri --no-rdoc fpm
 
 install:
-  - go get -v github.com/Masterminds/glide
-  - cd $GOPATH/src/github.com/Masterminds/glide && git checkout tags/v0.12.3 && go install && cd - # use a known good glide version
-  - glide install
+  - go get -v github.com/golang/dep/cmd/dep
+  - dep ensure -v -vendor-only
 
 script:
   - go test ./...
+  - docker build --tag kube-bench .
+  - docker run -v `pwd`:/host kube-bench install 
+  - test -d cfg
+  - test -f kube-bench
 
 after_success:
   - test -n "$TRAVIS_TAG" && curl -sL https://git.io/goreleaser | bash

Dockerfile

@@ -1,13 +1,22 @@
-FROM golang:1.9
-WORKDIR /kube-bench
-RUN go get github.com/aquasecurity/kube-bench
+FROM golang:1.9 AS build
+WORKDIR /go/src/github.com/aquasecurity/kube-bench/
+ADD Gopkg.toml Gopkg.lock ./
+RUN go get -v github.com/golang/dep/cmd/dep && dep ensure -v -vendor-only
+ADD main.go .
+ADD check/ check/
+ADD cmd/ cmd/
+RUN CGO_ENABLED=0 go install -a -ldflags '-w'
 
-FROM alpine:latest
-WORKDIR /
-COPY --from=0 /go/bin/kube-bench /kube-bench 
-COPY --from=0 /go/src/github.com/aquasecurity/kube-bench/cfg /cfg
-COPY --from=0 /go/src/github.com/aquasecurity/kube-bench/entrypoint.sh /entrypoint.sh
-ENTRYPOINT /entrypoint.sh
+FROM alpine:3.7 AS run
+WORKDIR /opt/kube-bench/
+# add GNU ps for -C, -o cmd, and --no-headers support
+# https://github.com/aquasecurity/kube-bench/issues/109
+RUN apk --no-cache add procps
+COPY --from=build /go/bin/kube-bench /usr/local/bin/kube-bench
+ADD entrypoint.sh .
+ADD cfg/ cfg/
+ENTRYPOINT ["./entrypoint.sh"]
+CMD ["install"]
 
 # Build-time metadata as defined at http://label-schema.org
 ARG BUILD_DATE

Gopkg.lock

@@ -0,0 +1,153 @@
+# This file is autogenerated, do not edit; changes may be undone by the next 'dep ensure'.
+
+
+[[projects]]
+  name = "github.com/fatih/color"
+  packages = ["."]
+  revision = "570b54cabe6b8eb0bc2dfce68d964677d63b5260"
+  version = "v1.5.0"
+
+[[projects]]
+  name = "github.com/fsnotify/fsnotify"
+  packages = ["."]
+  revision = "4da3e2cfbabc9f751898f250b49f2439785783a1"
+
+[[projects]]
+  branch = "master"
+  name = "github.com/golang/glog"
+  packages = ["."]
+  revision = "23def4e6c14b4da8ac2ed8007337bc5eb5007998"
+
+[[projects]]
+  name = "github.com/hashicorp/hcl"
+  packages = [
+    ".",
+    "hcl/ast",
+    "hcl/parser",
+    "hcl/scanner",
+    "hcl/strconv",
+    "hcl/token",
+    "json/parser",
+    "json/scanner",
+    "json/token"
+  ]
+  revision = "23c074d0eceb2b8a5bfdbb271ab780cde70f05a8"
+
+[[projects]]
+  name = "github.com/inconshreveable/mousetrap"
+  packages = ["."]
+  revision = "76626ae9c91c4f2a10f34cad8ce83ea42c93bb75"
+  version = "v1.0"
+
+[[projects]]
+  name = "github.com/jinzhu/gorm"
+  packages = [
+    ".",
+    "dialects/postgres"
+  ]
+  revision = "5174cc5c242a728b435ea2be8a2f7f998e15429b"
+  version = "v1.0"
+
+[[projects]]
+  name = "github.com/jinzhu/inflection"
+  packages = ["."]
+  revision = "1c35d901db3da928c72a72d8458480cc9ade058f"
+
+[[projects]]
+  name = "github.com/lib/pq"
+  packages = [
+    ".",
+    "hstore",
+    "oid"
+  ]
+  revision = "83612a56d3dd153a94a629cd64925371c9adad78"
+
+[[projects]]
+  name = "github.com/magiconair/properties"
+  packages = ["."]
+  revision = "49d762b9817ba1c2e9d0c69183c2b4a8b8f1d934"
+
+[[projects]]
+  name = "github.com/mattn/go-colorable"
+  packages = ["."]
+  revision = "5411d3eea5978e6cdc258b30de592b60df6aba96"
+
+[[projects]]
+  name = "github.com/mattn/go-isatty"
+  packages = ["."]
+  revision = "57fdcb988a5c543893cc61bce354a6e24ab70022"
+
+[[projects]]
+  name = "github.com/mitchellh/mapstructure"
+  packages = ["."]
+  revision = "06020f85339e21b2478f756a78e295255ffa4d6a"
+
+[[projects]]
+  name = "github.com/pelletier/go-toml"
+  packages = ["."]
+  revision = "0131db6d737cfbbfb678f8b7d92e55e27ce46224"
+
+[[projects]]
+  name = "github.com/spf13/afero"
+  packages = [
+    ".",
+    "mem"
+  ]
+  revision = "57afd63c68602b63ed976de00dd066ccb3c319db"
+
+[[projects]]
+  name = "github.com/spf13/cast"
+  packages = ["."]
+  revision = "acbeb36b902d72a7a4c18e8f3241075e7ab763e4"
+  version = "v1.1.0"
+
+[[projects]]
+  name = "github.com/spf13/cobra"
+  packages = ["."]
+  revision = "7b2c5ac9fc04fc5efafb60700713d4fa609b777b"
+  version = "v0.0.1"
+
+[[projects]]
+  name = "github.com/spf13/jwalterweatherman"
+  packages = ["."]
+  revision = "12bd96e66386c1960ab0f74ced1362f66f552f7b"
+
+[[projects]]
+  name = "github.com/spf13/pflag"
+  packages = ["."]
+  revision = "4c012f6dcd9546820e378d0bdda4d8fc772cdfea"
+
+[[projects]]
+  name = "github.com/spf13/viper"
+  packages = ["."]
+  revision = "25b30aa063fc18e48662b86996252eabdcf2f0c7"
+  version = "v1.0.0"
+
+[[projects]]
+  name = "golang.org/x/sys"
+  packages = ["unix"]
+  revision = "e24f485414aeafb646f6fca458b0bf869c0880a1"
+
+[[projects]]
+  name = "golang.org/x/text"
+  packages = [
+    "internal/gen",
+    "internal/triegen",
+    "internal/ucd",
+    "transform",
+    "unicode/cldr",
+    "unicode/norm"
+  ]
+  revision = "e19ae1496984b1c655b8044a65c0300a3c878dd3"
+
+[[projects]]
+  name = "gopkg.in/yaml.v2"
+  packages = ["."]
+  revision = "c95af922eae69f190717a0b7148960af8c55a072"
+
+[solve-meta]
+  analyzer-name = "dep"
+  analyzer-version = 1
+  inputs-digest = "8d9a1b665b338530deef434f168913ba1184f835aa5bfed3a213a14c613bc17e"
+  solver-name = "gps-cdcl"
+  solver-version = 1

Gopkg.toml

@@ -0,0 +1,23 @@
+[[constraint]]
+  name = "github.com/fatih/color"
+  version = "1.5.0"
+
+[[constraint]]
+  branch = "master"
+  name = "github.com/golang/glog"
+
+[[constraint]]
+  name = "github.com/jinzhu/gorm"
+  version = "1.0.0"
+
+[[constraint]]
+  name = "github.com/spf13/cobra"
+  version = "0.0.1"
+
+[[constraint]]
+  name = "github.com/spf13/viper"
+  version = "1.0.0"
+
+[prune]
+  go-tests = true
+  unused-packages = true

README.md

@@ -3,9 +3,9 @@
 [![Docker image](https://images.microbadger.com/badges/image/aquasec/kube-bench.svg)](https://microbadger.com/images/aquasec/kube-bench "Get your own image badge on microbadger.com")
 [![Source commit](https://images.microbadger.com/badges/commit/aquasec/kube-bench.svg)](https://microbadger.com/images/aquasec/kube-bench)
 
-# kube-bench
+<img src="images/kube-bench.png" width="200" alt="kube-bench logo">
 
-The Kubernetes Bench for Security is a Go application that checks whether Kubernetes is deployed securely by running the checks documented in the CIS Kubernetes Benchmark.
+kube-bench is a Go application that checks whether Kubernetes is deployed securely by running the checks documented in the CIS Kubernetes Benchmark.
 
 Tests are configured with YAML files, making this tool easy to update as test specifications evolve. 
 
@@ -17,38 +17,65 @@ kube-bench supports the tests for multiple versions of Kubernetes (1.6, 1.7 and
 
 ## Installation
 
-You can either install kube-bench through a dedicated container, or compile it from source:
+You can choose to 
+* run kube-bench from inside a container (sharing PID namespace with the host)
+* run a container that installs kube-bench on the host, and then run kube-bench directly on the host
+* install the latest binaries from the [Releases page](https://github.com/aquasecurity/kube-bench/releases), 
+* compile it from source.
 
-1. Container installation:
-Run ```docker run --rm -v `pwd`:/host aquasec/kube-bench:latest```. This will copy the kube-bench binary and configuration to you host. You can then run ```./kube-bench <master|node>```.
+### Running inside a container
+
+You can avoid installing kube-bench on the host by running it inside a container using the host PID namespace.
+
+```
+docker run --pid=host aquasec/kube-bench:latest <master|node>
+```
+
+You can even use your own configs by mounting them over the default ones in `/opt/kube-bench/cfg/`
+
+```
+docker run --pid=host -v path/to/my-config.yaml:/opt/kube-bench/cfg/config.yaml aquasec/kube-bench:latest <master|node>
+```
+
+### Running in a kubernetes cluster
+Run the master check
+
+```
+kubectl run --rm -i -t kube-bench-master --image=aquasec/kube-bench:latest --restart=Never --overrides="{ \"apiVersion\": \"v1\", \"spec\": { \"hostPID\": true, \"nodeSelector\": { \"kubernetes.io/role\": \"master\" }, \"tolerations\": [ { \"key\": \"node-role.kubernetes.io/master\", \"operator\": \"Exists\", \"effect\": \"NoSchedule\" } ] } }" -- master --version 1.8
+```
+
+Run the node check
+
+```
+kubectl run --rm -i -t kube-bench-node --image=aquasec/kube-bench:latest --restart=Never --overrides="{ \"apiVersion\": \"v1\", \"spec\": { \"hostPID\": true } }" -- node --version 1.8
+```
+
+### Installing from a container
+
+This command copies the kube-bench binary and configuration files to your host from the Docker container:
+```
+docker run --rm -v `pwd`:/host aquasec/kube-bench:latest install
+```
+
+You can then run `./kube-bench <master|node>`. 
+
+### Installing from sources
 
-2. Install from sources:
 If Go is installed on the target machines, you can simply clone this repository and run as follows (assuming your [$GOPATH is set](https://github.com/golang/go/wiki/GOPATH)):
 
-```go get github.com/aquasecurity/kube-bench
-go get github.com/Masterminds/glide
+```shell
+go get github.com/aquasecurity/kube-bench
+go get github.com/golang/dep/cmd/dep
 cd $GOPATH/src/github.com/aquasecurity/kube-bench
-$GOPATH/bin/glide install
-go build -o kube-bench . 
-./kube-bench <master|node>
-```
+$GOPATH/bin/dep ensure -vendor-only
+go build -o kube-bench .
 
-## Usage
-```./kube-bench [command]```
+# See all supported options
+./kube-bench --help
 
-```
-Available Commands:
-  federated   Run benchmark checks for a Kubernetes federated deployment.
-  help        Help about any command
-  master      Run benchmark checks for a Kubernetes master node.
-  node        Run benchmark checks for a Kubernetes node.
+# Run the all checks on a master node
+./kube-bench master
 
-Flags:
-  -c, --check string          A comma-delimited list of checks to run as specified in CIS document. Example --check="1.1.1,1.1.2"
-      --config string         config file (default is ./cfg/config.yaml)
-  -g, --group string          Run all the checks under this comma-delimited list of groups. Example --group="1.1"
-      --json                  Prints the results as JSON
-  -v, --verbose               verbose output (default false)
 ```
 
 ## Configuration

cfg/1.8/config.yaml

@@ -9,21 +9,27 @@
 
 master:
   apiserver:
+    confs:
+      - /etc/kubernetes/manifests/kube-apiserver.yaml
+      - /etc/kubernetes/manifests/kube-apiserver.manifest
     defaultconf: /etc/kubernetes/manifests/kube-apiserver.yaml
 
   scheduler:
     confs: 
       - /etc/kubernetes/manifests/kube-scheduler.yaml
+      - /etc/kubernetes/manifests/kube-scheduler.manifest
     defaultconf: /etc/kubernetes/manifests/kube-scheduler.yaml
 
   controllermanager:
     confs:
       - /etc/kubernetes/manifests/kube-controller-manager.yaml
+      - /etc/kubernetes/manifests/kube-controller-manager.manifest
     defaultconf: /etc/kubernetes/manifests/kube-controller-manager.yaml
 
   etcd:
     confs:
       - /etc/kubernetes/manifests/etcd.yaml
+      - /etc/kubernetes/manifests/etcd.manifest
     defaultconf: /etc/kubernetes/manifests/etcd.yaml
 
 node:

cfg/1.8/master.yaml

@@ -418,7 +418,7 @@ groups:
 
   - id: 1.1.26
     text: "Ensure that the --etcd-certfile and --etcd-keyfile arguments are set as 
-      appropriate (Scored"
+      appropriate (Scored)"
     audit: "ps -ef | grep $apiserverbin | grep -v grep"
     tests:
       bin_op: and
@@ -610,7 +610,7 @@ groups:
     remediation: |
       Edit the API server pod specification file $apiserverconf
       and set the below parameter as appropriate and if needed. For example,
-      --request-timeout=300
+      --request-timeout=300s
     scored: true
 
 - id: 1.2
@@ -666,7 +666,7 @@ groups:
     scored: true
 
   - id: 1.3.3
-    text: "Ensure that the --use-service-account-credentials argument is set"
+    text: "Ensure that the --use-service-account-credentials argument is set (Scored)"
     audit: "ps -ef | grep $controllermanagerbin | grep -v grep"
     tests:
       test_items:
@@ -942,7 +942,7 @@ groups:
 
   - id: 1.4.11
     text: "Ensure that the etcd data directory permissions are set to 700 or more restrictive (Scored)"
-    audit: ps -ef | grep $etcdbin | grep -v grep | sed 's%.*data-dir[= ]\([^ ]*\).*%\1%' | xargs stat -c %a
+    audit: ps -ef | grep $etcdbin | grep -- --data-dir | sed 's%.*data-dir[= ]\([^ ]*\).*%\1%' | xargs stat -c %a
     tests:
       test_items:
       - flag: "700"
@@ -960,7 +960,7 @@ groups:
 
   - id: 1.4.12
     text: "Ensure that the etcd data directory ownership is set to etcd:etcd (Scored)"
-    audit: ps -ef | grep $etcdbin | grep -v grep | sed 's%.*data-dir[= ]\(\S*\)%\1%' | xargs stat -c %U:%G
+    audit: ps -ef | grep $etcdbin | grep -- --data-dir | sed 's%.*data-dir[= ]\([^ ]*\).*%\1%' | xargs stat -c %U:%G
     tests:
       test_items:
       - flag: "etcd:etcd"

cfg/1.8/node.yaml

@@ -368,8 +368,7 @@ groups:
       scored: true
 
     - id: 2.2.4
-      text: "Ensure that the kubelet service file permissions are set to 644 or
-      more restrictive (Scored)"
+      text: "2.2.4 Ensure that the kubelet service file ownership is set to root:root (Scored)"
       audit: "/bin/sh -c 'if test -e $kubeletconf; then stat -c %U:%G $kubeletconf; fi'"
       tests:
         test_items:
@@ -411,6 +410,7 @@ groups:
 
     - id: 2.2.6
       text: "Ensure that the proxy kubeconfig file ownership is set to root:root (Scored)"
+      audit: "/bin/sh -c 'if test -e $proxyconf; then stat -c %U:%G $proxyconf; fi'"
       tests:
         test_items:
         - flag: "root:root"

check/test.go

@@ -80,10 +80,22 @@ func (t *testItem) execute(s string) (result bool) {
 
 			switch t.Compare.Op {
 			case "eq":
-				result = flagVal == t.Compare.Value
+				value := strings.ToLower(flagVal)
+				// Do case insensitive comparaison for booleans ...
+				if value == "false" || value == "true" {
+					result = value == t.Compare.Value
+				} else {
+					result = flagVal == t.Compare.Value
+				}
 
 			case "noteq":
-				result = !(flagVal == t.Compare.Value)
+				value := strings.ToLower(flagVal)
+				// Do case insensitive comparaison for booleans ...
+				if value == "false" || value == "true" {
+					result = !(value == t.Compare.Value)
+				} else {
+					result = !(flagVal == t.Compare.Value)
+				}
 
 			case "gt":
 				a, b := toNumeric(flagVal, t.Compare.Value)

cmd/common.go

@@ -17,6 +17,7 @@ package cmd
 import (
 	"fmt"
 	"io/ioutil"
+	"os"
 	"path/filepath"
 
 	"github.com/aquasecurity/kube-bench/check"
@@ -28,50 +29,50 @@ var (
 	errmsgs string
 )
 
-func runChecks(t check.NodeType) {
+func runChecks(nodetype check.NodeType) {
 	var summary check.Summary
-	var nodetype string
 	var file string
 	var err error
 	var typeConf *viper.Viper
 
-	switch t {
+	switch nodetype {
 	case check.MASTER:
 		file = masterFile
-		nodetype = "master"
 	case check.NODE:
 		file = nodeFile
-		nodetype = "node"
 	case check.FEDERATED:
 		file = federatedFile
-		nodetype = "federated"
 	}
 
-	ver := getKubeVersion()
-	switch ver {
-	case "1.9", "1.10":
-		continueWithError(nil, fmt.Sprintf("No CIS spec for %s - using tests from CIS 1.2.0 spec for Kubernetes 1.8\n", ver))
-		ver = "1.8"
+	path, err := getConfigFilePath(kubeVersion, getKubeVersion(), file)
+	if err != nil {
+		exitWithError(fmt.Errorf("can't find %s controls file in %s: %v", nodetype, cfgDir, err))
 	}
 
-	path := filepath.Join(cfgDir, ver)
 	def := filepath.Join(path, file)
-
 	in, err := ioutil.ReadFile(def)
 	if err != nil {
-		exitWithError(fmt.Errorf("error opening %s controls file: %v", t, err))
+		exitWithError(fmt.Errorf("error opening %s controls file: %v", nodetype, err))
 	}
 
+	glog.V(1).Info(fmt.Sprintf("Using benchmark file: %s\n", def))
+
 	// Merge kubernetes version specific config if any.
 	viper.SetConfigFile(path + "/config.yaml")
 	err = viper.MergeInConfig()
 	if err != nil {
-		continueWithError(err, fmt.Sprintf("Reading %s specific configuration file", ver))
+		if os.IsNotExist(err) {
+			glog.V(2).Info(fmt.Sprintf("No version-specific config.yaml file in %s", path))
+		} else {
+			exitWithError(fmt.Errorf("couldn't read config file %s: %v", path+"/config.yaml", err))
+		}
+	} else {
+		glog.V(1).Info(fmt.Sprintf("Using config file: %s\n", viper.ConfigFileUsed()))
 	}
-	typeConf = viper.Sub(nodetype)
 
 	// Get the set of exectuables and config files we care about on this type of node. This also
 	// checks that the executables we need for the node type are running.
+	typeConf = viper.Sub(string(nodetype))
 	binmap := getBinaries(typeConf)
 	confmap := getConfigFiles(typeConf)
 
@@ -80,12 +81,9 @@ func runChecks(t check.NodeType) {
 	s = makeSubstitutions(s, "bin", binmap)
 	s = makeSubstitutions(s, "conf", confmap)
 
-	glog.V(1).Info(fmt.Sprintf("Using config file: %s\n", viper.ConfigFileUsed()))
-	glog.V(1).Info(fmt.Sprintf("Using benchmark file: %s\n", def))
-
-	controls, err := check.NewControls(t, []byte(s))
+	controls, err := check.NewControls(nodetype, []byte(s))
 	if err != nil {
-		exitWithError(fmt.Errorf("error setting up %s controls: %v", t, err))
+		exitWithError(fmt.Errorf("error setting up %s controls: %v", nodetype, err))
 	}
 
 	if groupList != "" && checkList == "" {
@@ -131,41 +129,48 @@ func colorPrint(state check.State, s string) {
 
 // prettyPrint outputs the results to stdout in human-readable format
 func prettyPrint(r *check.Controls, summary check.Summary) {
-	colorPrint(check.INFO, fmt.Sprintf("%s %s\n", r.ID, r.Text))
-	for _, g := range r.Groups {
-		colorPrint(check.INFO, fmt.Sprintf("%s %s\n", g.ID, g.Text))
-		for _, c := range g.Checks {
-			colorPrint(c.State, fmt.Sprintf("%s %s\n", c.ID, c.Text))
-		}
-	}
-
-	fmt.Println()
-
-	// Print remediations.
-	if summary.Fail > 0 || summary.Warn > 0 {
-		colors[check.WARN].Printf("== Remediations ==\n")
+	// Print check results.
+	if !noResults {
+		colorPrint(check.INFO, fmt.Sprintf("%s %s\n", r.ID, r.Text))
 		for _, g := range r.Groups {
+			colorPrint(check.INFO, fmt.Sprintf("%s %s\n", g.ID, g.Text))
 			for _, c := range g.Checks {
-				if c.State != check.PASS {
-					fmt.Printf("%s %s\n", c.ID, c.Remediation)
-				}
+				colorPrint(c.State, fmt.Sprintf("%s %s\n", c.ID, c.Text))
 			}
 		}
+
 		fmt.Println()
 	}
 
-	// Print summary setting output color to highest severity.
-	var res check.State
-	if summary.Fail > 0 {
-		res = check.FAIL
-	} else if summary.Warn > 0 {
-		res = check.WARN
-	} else {
-		res = check.PASS
+	// Print remediations.
+	if !noRemediations {
+		if summary.Fail > 0 || summary.Warn > 0 {
+			colors[check.WARN].Printf("== Remediations ==\n")
+			for _, g := range r.Groups {
+				for _, c := range g.Checks {
+					if c.State != check.PASS {
+						fmt.Printf("%s %s\n", c.ID, c.Remediation)
+					}
+				}
+			}
+			fmt.Println()
+		}
 	}
 
-	colors[res].Printf("== Summary ==\n")
-	fmt.Printf("%d checks PASS\n%d checks FAIL\n%d checks WARN\n",
-		summary.Pass, summary.Fail, summary.Warn,
-	)
+	// Print summary setting output color to highest severity.
+	if !noSummary {
+		var res check.State
+		if summary.Fail > 0 {
+			res = check.FAIL
+		} else if summary.Warn > 0 {
+			res = check.WARN
+		} else {
+			res = check.PASS
+		}
+
+		colors[res].Printf("== Summary ==\n")
+		fmt.Printf("%d checks PASS\n%d checks FAIL\n%d checks WARN\n",
+			summary.Pass, summary.Fail, summary.Warn,
+		)
+	}
 }

cmd/root.go

@@ -26,9 +26,10 @@ import (
 
 var (
 	envVarsPrefix      = "KUBE_BENCH"
-	cfgDir             = "./cfg"
 	defaultKubeVersion = "1.6"
+	kubeVersion        string
 	cfgFile            string
+	cfgDir             string
 	jsonFmt            bool
 	pgSQL              bool
 	checkList          string
@@ -36,13 +37,16 @@ var (
 	masterFile         string
 	nodeFile           string
 	federatedFile      string
+	noResults          bool
+	noSummary          bool
+	noRemediations     bool
 )
 
 // RootCmd represents the base command when called without any subcommands
 var RootCmd = &cobra.Command{
 	Use:   os.Args[0],
 	Short: "Run CIS Benchmarks checks against a Kubernetes deployment",
-	Long:  `This tool runs the CIS Kubernetes 1.6 Benchmark v1.0.0 checks.`,
+	Long:  `This tool runs the CIS Kubernetes Benchmark (http://www.cisecurity.org/benchmark/kubernetes/)`,
 }
 
 // Execute adds all child commands to the root command sets flags appropriately.
@@ -60,8 +64,13 @@ func Execute() {
 func init() {
 	cobra.OnInitialize(initConfig)
 
+	// Output control
+	RootCmd.PersistentFlags().BoolVar(&noResults, "noresults", false, "Disable printing of results section")
+	RootCmd.PersistentFlags().BoolVar(&noSummary, "nosummary", false, "Disable printing of summary section")
+	RootCmd.PersistentFlags().BoolVar(&noRemediations, "noremediations", false, "Disable printing of remediations section")
 	RootCmd.PersistentFlags().BoolVar(&jsonFmt, "json", false, "Prints the results as JSON")
 	RootCmd.PersistentFlags().BoolVar(&pgSQL, "pgsql", false, "Save the results to PostgreSQL")
+
 	RootCmd.PersistentFlags().StringVarP(
 		&checkList,
 		"check",
@@ -77,6 +86,8 @@ func init() {
 		`Run all the checks under this comma-delimited list of groups. Example --group="1.1"`,
 	)
 	RootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file (default is ./cfg/config.yaml)")
+	RootCmd.PersistentFlags().StringVarP(&cfgDir, "config-dir", "D", "./cfg/", "config directory")
+	RootCmd.PersistentFlags().StringVar(&kubeVersion, "version", "", "Manually specify Kubernetes version, automatically detected if unset")
 
 	goflag.CommandLine.VisitAll(func(goflag *goflag.Flag) {
 		RootCmd.PersistentFlags().AddGoFlag(goflag)

cmd/util.go

@@ -4,7 +4,9 @@ import (
 	"fmt"
 	"os"
 	"os/exec"
+	"path/filepath"
 	"regexp"
+	"strconv"
 	"strings"
 
 	"github.com/aquasecurity/kube-bench/check"
@@ -116,6 +118,57 @@ func getBinaries(v *viper.Viper) map[string]string {
 	return binmap
 }
 
+// getConfigFilePath locates the config files we should be using based on either the specified
+// version, or the running version of kubernetes if not specified
+func getConfigFilePath(specifiedVersion string, runningVersion string, filename string) (path string, err error) {
+	var fileVersion string
+
+	if specifiedVersion != "" {
+		fileVersion = specifiedVersion
+	} else {
+		fileVersion = runningVersion
+	}
+
+	for {
+		path = filepath.Join(cfgDir, fileVersion)
+		file := filepath.Join(path, string(filename))
+		glog.V(2).Info(fmt.Sprintf("Looking for config file: %s\n", file))
+
+		if _, err = os.Stat(file); !os.IsNotExist(err) {
+			if specifiedVersion == "" && fileVersion != runningVersion {
+				glog.V(1).Info(fmt.Sprintf("No test file found for %s - using tests for Kubernetes %s\n", runningVersion, fileVersion))
+			}
+			return path, nil
+		}
+
+		// If we were given an explicit version to look for, don't look for any others
+		if specifiedVersion != "" {
+			return "", err
+		}
+
+		fileVersion = decrementVersion(fileVersion)
+		if fileVersion == "" {
+			return "", fmt.Errorf("no test files found <= runningVersion")
+		}
+	}
+}
+
+// decrementVersion decrements the version number
+// We want to decrement individually even through versions where we don't supply test files
+// just in case someone wants to specify their own test files for that version
+func decrementVersion(version string) string {
+	split := strings.Split(version, ".")
+	minor, err := strconv.Atoi(split[1])
+	if err != nil {
+		return ""
+	}
+	if minor <= 1 {
+		return ""
+	}
+	split[1] = strconv.Itoa(minor - 1)
+	return strings.Join(split, ".")
+}
+
 // getConfigFiles finds which of the set of candidate config files exist
 // accepts a string 't' which indicates the type of config file, conf,
 // podspec or untifile.
@@ -219,7 +272,7 @@ func getKubeVersion() string {
 	if err != nil {
 		_, err = exec.LookPath("kubelet")
 		if err != nil {
-			exitWithError(fmt.Errorf("Version check failed: need kubectl or kubelet binaries to get kubernetes version"))
+			exitWithError(fmt.Errorf("Version check failed: need kubectl or kubelet binaries to get kubernetes version.\nAlternately, you can specify the version with --version"))
 		}
 		return getKubeVersionFromKubelet()
 	}
@@ -240,7 +293,7 @@ func getKubeVersionFromKubectl() string {
 func getKubeVersionFromKubelet() string {
 	cmd := exec.Command("kubelet", "--version")
 	out, err := cmd.CombinedOutput()
-	
+
 	if err != nil {
 		continueWithError(fmt.Errorf("%s", out), "")
 	}
@@ -275,7 +328,7 @@ func makeSubstitutions(s string, ext string, m map[string]string) string {
 			glog.V(2).Info(fmt.Sprintf("No subsitution for '%s'\n", subst))
 			continue
 		}
-		glog.V(1).Info(fmt.Sprintf("Substituting %s with '%s'\n", subst, v))
+		glog.V(2).Info(fmt.Sprintf("Substituting %s with '%s'\n", subst, v))
 		s = multiWordReplace(s, subst, v)
 	}
 

cmd/util_test.go

@@ -15,7 +15,9 @@
 package cmd
 
 import (
+	"io/ioutil"
 	"os"
+	"path/filepath"
 	"reflect"
 	"strconv"
 	"testing"
@@ -306,3 +308,45 @@ func TestMakeSubsitutions(t *testing.T) {
 		})
 	}
 }
+
+func TestGetConfigFilePath(t *testing.T) {
+	var err error
+	cfgDir, err = ioutil.TempDir("", "kube-bench-test")
+	if err != nil {
+		t.Fatalf("Failed to create temp directory")
+	}
+	defer os.RemoveAll(cfgDir)
+	d := filepath.Join(cfgDir, "1.8")
+	err = os.Mkdir(d, 0666)
+	if err != nil {
+		t.Fatalf("Failed to create temp file")
+	}
+	ioutil.WriteFile(filepath.Join(d, "master.yaml"), []byte("hello world"), 0666)
+
+	cases := []struct {
+		specifiedVersion string
+		runningVersion   string
+		succeed          bool
+		exp              string
+	}{
+		{runningVersion: "1.8", succeed: true, exp: d},
+		{runningVersion: "1.9", succeed: true, exp: d},
+		{runningVersion: "1.10", succeed: true, exp: d},
+		{runningVersion: "1.1", succeed: false},
+		{specifiedVersion: "1.8", succeed: true, exp: d},
+		{specifiedVersion: "1.9", succeed: false},
+		{specifiedVersion: "1.10", succeed: false},
+	}
+
+	for _, c := range cases {
+		t.Run(c.specifiedVersion+"-"+c.runningVersion, func(t *testing.T) {
+			path, err := getConfigFilePath(c.specifiedVersion, c.runningVersion, "/master.yaml")
+			if err != nil && c.succeed {
+				t.Fatalf("Error %v", err)
+			}
+			if path != c.exp {
+				t.Fatalf("Got %s expected %s", path, c.exp)
+			}
+		})
+	}
+}

entrypoint.sh

@@ -1,14 +1,19 @@
-#!/bin/sh
-if [ -d /host ]; then
-  mkdir -p /host/cfg/
-  yes | cp -rf /cfg/* /host/cfg/
-  yes | cp -rf /kube-bench /host/
-  echo "==============================================="
-  echo "kube-bench is now installed on your host       "
-  echo "Run ./kube-bench to perform a security check   "
-  echo "==============================================="
+#!/bin/sh -e
+if [ "$1" == "install" ]; then
+  if [ -d /host ]; then
+    mkdir -p /host/cfg/
+    yes | cp -rf cfg/* /host/cfg/
+    yes | cp -rf /usr/local/bin/kube-bench /host/
+    echo "==============================================="
+    echo "kube-bench is now installed on your host       "
+    echo "Run ./kube-bench to perform a security check   "
+    echo "==============================================="
+  else
+    echo "Usage:"
+    echo "  install: docker run --rm -v \`pwd\`:/host aquasec/kube-bench install"
+    echo "  run:     docker run --rm --pid=host aquasec/kube-bench [command]"
+    exit
+  fi
 else
-  echo "Usage:"
-  echo "  docker run --rm -v \`pwd\`:/host aquasec/kube-bench"
-  exit 
+  exec kube-bench "$@"
 fi

glide.lock

@@ -1,72 +0,0 @@
-hash: f3cf12cf95d66d315c4aef2f3d0940770bd26267f84703e53c4928b786a91c14
-updated: 2018-01-09T12:49:41.3014329-08:00
-imports:
-- name: github.com/fatih/color
-  version: 570b54cabe6b8eb0bc2dfce68d964677d63b5260
-- name: github.com/fsnotify/fsnotify
-  version: 4da3e2cfbabc9f751898f250b49f2439785783a1
-- name: github.com/golang/glog
-  version: 23def4e6c14b4da8ac2ed8007337bc5eb5007998
-- name: github.com/hashicorp/hcl
-  version: 23c074d0eceb2b8a5bfdbb271ab780cde70f05a8
-  subpackages:
-  - hcl/ast
-  - hcl/parser
-  - hcl/scanner
-  - hcl/strconv
-  - hcl/token
-  - json/parser
-  - json/scanner
-  - json/token
-- name: github.com/inconshreveable/mousetrap
-  version: 76626ae9c91c4f2a10f34cad8ce83ea42c93bb75
-- name: github.com/jinzhu/gorm
-  version: 5174cc5c242a728b435ea2be8a2f7f998e15429b
-  subpackages:
-  - dialects/postgres
-- name: github.com/jinzhu/inflection
-  version: 1c35d901db3da928c72a72d8458480cc9ade058f
-- name: github.com/lib/pq
-  version: 83612a56d3dd153a94a629cd64925371c9adad78
-  subpackages:
-  - hstore
-  - oid
-- name: github.com/magiconair/properties
-  version: 49d762b9817ba1c2e9d0c69183c2b4a8b8f1d934
-- name: github.com/mattn/go-colorable
-  version: 5411d3eea5978e6cdc258b30de592b60df6aba96
-  repo: https://github.com/mattn/go-colorable
-- name: github.com/mattn/go-isatty
-  version: 57fdcb988a5c543893cc61bce354a6e24ab70022
-  repo: https://github.com/mattn/go-isatty
-- name: github.com/mitchellh/mapstructure
-  version: 06020f85339e21b2478f756a78e295255ffa4d6a
-- name: github.com/pelletier/go-toml
-  version: 0131db6d737cfbbfb678f8b7d92e55e27ce46224
-- name: github.com/spf13/afero
-  version: 57afd63c68602b63ed976de00dd066ccb3c319db
-  subpackages:
-  - mem
-- name: github.com/spf13/cast
-  version: acbeb36b902d72a7a4c18e8f3241075e7ab763e4
-- name: github.com/spf13/cobra
-  version: 7b2c5ac9fc04fc5efafb60700713d4fa609b777b
-- name: github.com/spf13/jwalterweatherman
-  version: 12bd96e66386c1960ab0f74ced1362f66f552f7b
-- name: github.com/spf13/pflag
-  version: 4c012f6dcd9546820e378d0bdda4d8fc772cdfea
-- name: github.com/spf13/viper
-  version: 25b30aa063fc18e48662b86996252eabdcf2f0c7
-- name: golang.org/x/sys
-  version: e24f485414aeafb646f6fca458b0bf869c0880a1
-  repo: https://go.googlesource.com/sys
-  subpackages:
-  - unix
-- name: golang.org/x/text
-  version: e19ae1496984b1c655b8044a65c0300a3c878dd3
-  subpackages:
-  - transform
-  - unicode/norm
-- name: gopkg.in/yaml.v2
-  version: c95af922eae69f190717a0b7148960af8c55a072
-testImports: []

glide.yaml

@@ -1,14 +0,0 @@
-package: github.com/aquasecurity/kube-bench
-import:
-- package: github.com/fatih/color
-  version: ^1.5.0
-- package: github.com/golang/glog
-- package: github.com/jinzhu/gorm
-  version: ^1.0.0
-  subpackages:
-  - dialects/postgres
-- package: github.com/spf13/cobra
-  version: ^0.0.1
-- package: github.com/spf13/viper
-  version: ^1.0.0
-- package: gopkg.in/yaml.v2

images/kube-bench.svg

@@ -0,0 +1,121 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   viewBox="0 0 831.49597 755.90533"
+   height="755.90533"
+   width="831.49597"
+   xml:space="preserve"
+   id="svg2"
+   version="1.1"><metadata
+     id="metadata8"><rdf:RDF><cc:Work
+         rdf:about=""><dc:format>image/svg+xml</dc:format><dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" /></cc:Work></rdf:RDF></metadata><defs
+     id="defs6"><clipPath
+       id="clipPath22"
+       clipPathUnits="userSpaceOnUse"><path
+         id="path20"
+         d="M 0,566.929 H 623.622 V 0 H 0 Z" /></clipPath></defs><g
+     transform="matrix(1.3333333,0,0,-1.3333333,0,755.90533)"
+     id="g10"><g
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