github.com/anth0d/nomad@v0.0.0-20221214183521-ae3a0a2cad06/command/config_validate.go (about) 1 package command 2 3 import ( 4 "fmt" 5 "reflect" 6 "strings" 7 8 multierror "github.com/hashicorp/go-multierror" 9 agent "github.com/hashicorp/nomad/command/agent" 10 ) 11 12 type ConfigValidateCommand struct { 13 Meta 14 } 15 16 func (c *ConfigValidateCommand) Help() string { 17 helpText := ` 18 Usage: nomad config validate <config_path> [<config_path...>] 19 20 Perform validation on a set of Nomad configuration files. This is useful 21 to test the Nomad configuration without starting the agent. 22 23 Accepts the path to either a single config file or a directory of 24 config files to use for configuring the Nomad agent. This option may 25 be specified multiple times. If multiple config files are used, the 26 values from each will be merged together. During merging, values from 27 files found later in the list are merged over values from previously 28 parsed files. 29 30 This command cannot operate on partial configuration fragments since 31 those won't pass the full agent validation. This command does not 32 require an ACL token. 33 34 Returns 0 if the configuration is valid, or 1 if there are problems. 35 ` 36 37 return strings.TrimSpace(helpText) 38 } 39 40 func (c *ConfigValidateCommand) Synopsis() string { 41 return "Validate config files/directories" 42 } 43 44 func (c *ConfigValidateCommand) Name() string { return "config validate" } 45 46 func (c *ConfigValidateCommand) Run(args []string) int { 47 var mErr multierror.Error 48 flags := c.Meta.FlagSet(c.Name(), FlagSetClient) 49 flags.Usage = func() { c.Ui.Output(c.Help()) } 50 if err := flags.Parse(args); err != nil { 51 c.Ui.Error(err.Error()) 52 return 1 53 } 54 55 configPath := flags.Args() 56 if len(configPath) < 1 { 57 c.Ui.Error("Must specify at least one config file or directory") 58 return 1 59 } 60 61 config := agent.DefaultConfig() 62 63 for _, path := range configPath { 64 fc, err := agent.LoadConfig(path) 65 if err != nil { 66 multierror.Append(&mErr, fmt.Errorf( 67 "Error loading configuration from %s: %s", path, err)) 68 continue 69 } 70 if fc == nil || reflect.DeepEqual(fc, &agent.Config{}) { 71 c.Ui.Warn(fmt.Sprintf("No configuration loaded from %s", path)) 72 } 73 74 config = config.Merge(fc) 75 } 76 if err := mErr.ErrorOrNil(); err != nil { 77 c.Ui.Error(err.Error()) 78 return 1 79 } 80 cmd := agent.Command{Ui: c.Ui} 81 valid := cmd.IsValidConfig(config, agent.DefaultConfig()) 82 if !valid { 83 c.Ui.Error("Configuration is invalid") 84 return 1 85 } 86 87 c.Ui.Output("Configuration is valid!") 88 return 0 89 }