open-consul/command/validate/validate.go
Daniel Nephin cb736b6947 config: warn when a config file is skipped
All commands which read config (agent, services, and validate) will now
print warnings when one of the config files is skipped because it did
not match an expected format.

Also ensures that config validate prints all warnings.
2020-06-17 13:08:54 -04:00

96 lines
2.6 KiB
Go

package validate
import (
"flag"
"fmt"
"github.com/hashicorp/consul/agent/config"
"github.com/hashicorp/consul/command/flags"
"github.com/mitchellh/cli"
)
func New(ui cli.Ui) *cmd {
c := &cmd{UI: ui}
c.init()
return c
}
type cmd struct {
UI cli.Ui
flags *flag.FlagSet
// configFormat forces all config files to be interpreted as this
// format independent of their extension.
configFormat string
quiet bool
help string
}
func (c *cmd) init() {
c.flags = flag.NewFlagSet("", flag.ContinueOnError)
c.flags.StringVar(&c.configFormat, "config-format", "",
"Config files are in this format irrespective of their extension. Must be 'hcl' or 'json'")
c.flags.BoolVar(&c.quiet, "quiet", false,
"When given, a successful run will produce no output.")
c.help = flags.Usage(help, c.flags)
}
func (c *cmd) Run(args []string) int {
if err := c.flags.Parse(args); err != nil {
c.UI.Error(err.Error())
return 1
}
configFiles := c.flags.Args()
if len(configFiles) < 1 {
c.UI.Error("Must specify at least one config file or directory")
return 1
}
if c.configFormat != "" && c.configFormat != "json" && c.configFormat != "hcl" {
c.UI.Error("-config-format must be either 'hcl' or 'json")
return 1
}
b, err := config.NewBuilder(config.BuilderOpts{ConfigFiles: configFiles, ConfigFormat: c.configFormat})
if err != nil {
c.UI.Error(fmt.Sprintf("Config validation failed: %v", err.Error()))
return 1
}
if _, err := b.BuildAndValidate(); err != nil {
c.UI.Error(fmt.Sprintf("Config validation failed: %v", err.Error()))
return 1
}
if !c.quiet {
for _, w := range b.Warnings {
c.UI.Warn(w)
}
c.UI.Output("Configuration is valid!")
}
return 0
}
func (c *cmd) Synopsis() string {
return synopsis
}
func (c *cmd) Help() string {
return c.help
}
const synopsis = "Validate config files/directories"
const help = `
Usage: consul validate [options] FILE_OR_DIRECTORY...
Performs a thorough sanity test on Consul configuration files. For each file
or directory given, the validate command will attempt to parse the contents
just as the "consul agent" command would, and catch any errors.
This is useful to do a test of the configuration only, without actually
starting the agent. This performs all of the validation the agent would, so
this should be given the complete set of configuration files that are going
to be loaded by the agent. This command cannot operate on partial
configuration fragments since those won't pass the full agent validation.
Returns 0 if the configuration is valid, or 1 if there are problems.
`