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133 lines
4.3 KiB
133 lines
4.3 KiB
// Copyright © 2017 Aqua Security Software Ltd. <info@aquasec.com>
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package cmd
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import (
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goflag "flag"
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"fmt"
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"os"
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"github.com/aquasecurity/kube-bench/check"
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"github.com/golang/glog"
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"github.com/spf13/cobra"
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"github.com/spf13/viper"
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)
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type FilterOpts struct {
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CheckList string
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GroupList string
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Scored bool
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Unscored bool
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}
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var (
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envVarsPrefix = "KUBE_BENCH"
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defaultKubeVersion = "1.6"
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kubeVersion string
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cfgFile string
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cfgDir string
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jsonFmt bool
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pgSQL bool
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masterFile = "master.yaml"
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nodeFile = "node.yaml"
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federatedFile string
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noResults bool
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noSummary bool
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noRemediations bool
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filterOpts FilterOpts
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)
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// RootCmd represents the base command when called without any subcommands
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var RootCmd = &cobra.Command{
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Use: os.Args[0],
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Short: "Run CIS Benchmarks checks against a Kubernetes deployment",
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Long: `This tool runs the CIS Kubernetes Benchmark (https://www.cisecurity.org/benchmark/kubernetes/)`,
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Run: func(cmd *cobra.Command, args []string) {
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if isMaster() {
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glog.V(1).Info("== Running master checks ==\n")
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runChecks(check.MASTER)
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}
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glog.V(1).Info("== Running node checks ==\n")
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runChecks(check.NODE)
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},
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}
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// Execute adds all child commands to the root command sets flags appropriately.
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// This is called by main.main(). It only needs to happen once to the rootCmd.
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func Execute() {
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goflag.Set("logtostderr", "true")
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goflag.CommandLine.Parse([]string{})
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if err := RootCmd.Execute(); err != nil {
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fmt.Println(err)
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os.Exit(-1)
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}
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}
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func init() {
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cobra.OnInitialize(initConfig)
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// Output control
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RootCmd.PersistentFlags().BoolVar(&noResults, "noresults", false, "Disable printing of results section")
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RootCmd.PersistentFlags().BoolVar(&noSummary, "nosummary", false, "Disable printing of summary section")
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RootCmd.PersistentFlags().BoolVar(&noRemediations, "noremediations", false, "Disable printing of remediations section")
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RootCmd.PersistentFlags().BoolVar(&jsonFmt, "json", false, "Prints the results as JSON")
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RootCmd.PersistentFlags().BoolVar(&pgSQL, "pgsql", false, "Save the results to PostgreSQL")
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RootCmd.PersistentFlags().BoolVar(&filterOpts.Scored, "scored", false, "Run only scored CIS checks")
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RootCmd.PersistentFlags().BoolVar(&filterOpts.Unscored, "unscored", false, "Run only unscored CIS checks")
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RootCmd.PersistentFlags().StringVarP(
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&filterOpts.CheckList,
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"check",
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"c",
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"",
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`A comma-delimited list of checks to run as specified in CIS document. Example --check="1.1.1,1.1.2"`,
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)
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RootCmd.PersistentFlags().StringVarP(
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&filterOpts.GroupList,
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"group",
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"g",
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"",
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`Run all the checks under this comma-delimited list of groups. Example --group="1.1"`,
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)
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RootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file (default is ./cfg/config.yaml)")
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RootCmd.PersistentFlags().StringVarP(&cfgDir, "config-dir", "D", "./cfg/", "config directory")
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RootCmd.PersistentFlags().StringVar(&kubeVersion, "version", "", "Manually specify Kubernetes version, automatically detected if unset")
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goflag.CommandLine.VisitAll(func(goflag *goflag.Flag) {
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RootCmd.PersistentFlags().AddGoFlag(goflag)
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})
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}
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// initConfig reads in config file and ENV variables if set.
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func initConfig() {
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if cfgFile != "" { // enable ability to specify config file via flag
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viper.SetConfigFile(cfgFile)
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} else {
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viper.SetConfigName("config") // name of config file (without extension)
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viper.AddConfigPath(cfgDir) // adding ./cfg as first search path
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}
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viper.SetEnvPrefix(envVarsPrefix)
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viper.AutomaticEnv() // read in environment variables that match
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// If a config file is found, read it in.
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if err := viper.ReadInConfig(); err != nil {
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colorPrint(check.FAIL, fmt.Sprintf("Failed to read config file: %v\n", err))
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os.Exit(1)
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}
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}
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