// DefaultConfig returns the default configuration struct.
func DefaultConfig() *Config {
logLevel := os.Getenv("CONSUL_REPLICATE_LOG")
if logLevel == "" {
logLevel = "WARN"
}
return &Config{
Auth: &AuthConfig{
Enabled: false,
},
SSL: &SSLConfig{
Enabled: false,
Verify: true,
},
Syslog: &SyslogConfig{
Enabled: false,
Facility: "LOCAL0",
},
LogLevel: logLevel,
Prefixes: []*Prefix{},
Excludes: []*Exclude{},
Retry: 5 * time.Second,
StatusDir: "service/consul-replicate/statuses",
Wait: &config.WaitConfig{
Min: config.TimeDuration(150 * time.Millisecond),
Max: config.TimeDuration(400 * time.Millisecond),
},
setKeys: make(map[string]struct{}),
}
}
func TestParseFlags_wait(t *testing.T) {
cli := NewCLI(ioutil.Discard, ioutil.Discard)
c, _, _, err := cli.parseFlags([]string{
"-wait", "10h:11h",
})
if err != nil {
t.Fatal(err)
}
expected := &config.WaitConfig{
Min: config.TimeDuration(10 * time.Hour),
Max: config.TimeDuration(11 * time.Hour),
}
if !reflect.DeepEqual(c.Wait, expected) {
t.Errorf("expected %v to be %v", c.Wait, expected)
}
if !c.WasSet("wait") {
t.Errorf("expected wait to be set")
}
}
// ParseFlags is a helper function for parsing command line flags using Go's
// Flag library. This is extracted into a helper to keep the main function
// small, but it also makes writing tests for parsing command line arguments
// much easier and cleaner.
func (cli *CLI) ParseFlags(args []string) (*config.Config, bool, bool, bool, error) {
var dry, once, version bool
c := config.DefaultConfig()
// configPaths stores the list of configuration paths on disk
configPaths := make([]string, 0, 6)
// Parse the flags and options
flags := flag.NewFlagSet(Name, flag.ContinueOnError)
flags.SetOutput(cli.errStream)
flags.Usage = func() { fmt.Fprintf(cli.errStream, usage, Name) }
flags.Var((funcVar)(func(s string) error {
configPaths = append(configPaths, s)
return nil
}), "config", "")
flags.Var((funcVar)(func(s string) error {
c.Consul.Address = config.String(s)
return nil
}), "consul-addr", "")
flags.Var((funcVar)(func(s string) error {
a, err := config.ParseAuthConfig(s)
if err != nil {
return err
}
c.Consul.Auth = a
return nil
}), "consul-auth", "")
flags.Var((funcBoolVar)(func(b bool) error {
c.Consul.Retry.Enabled = config.Bool(b)
return nil
}), "consul-retry", "")
flags.Var((funcIntVar)(func(i int) error {
c.Consul.Retry.Attempts = config.Int(i)
return nil
}), "consul-retry-attempts", "")
flags.Var((funcDurationVar)(func(d time.Duration) error {
c.Consul.Retry.Backoff = config.TimeDuration(d)
return nil
}), "consul-retry-backoff", "")
flags.Var((funcBoolVar)(func(b bool) error {
c.Consul.SSL.Enabled = config.Bool(b)
return nil
}), "consul-ssl", "")
flags.Var((funcVar)(func(s string) error {
c.Consul.SSL.CaCert = config.String(s)
return nil
}), "consul-ssl-ca-cert", "")
flags.Var((funcVar)(func(s string) error {
c.Consul.SSL.CaPath = config.String(s)
return nil
}), "consul-ssl-ca-path", "")
flags.Var((funcVar)(func(s string) error {
c.Consul.SSL.Cert = config.String(s)
return nil
}), "consul-ssl-cert", "")
flags.Var((funcVar)(func(s string) error {
c.Consul.SSL.Key = config.String(s)
return nil
}), "consul-ssl-key", "")
flags.Var((funcVar)(func(s string) error {
c.Consul.SSL.ServerName = config.String(s)
return nil
}), "consul-ssl-server-name", "")
flags.Var((funcBoolVar)(func(b bool) error {
c.Consul.SSL.Verify = config.Bool(b)
return nil
}), "consul-ssl-verify", "")
flags.Var((funcBoolVar)(func(b bool) error {
c.Dedup.Enabled = config.Bool(b)
return nil
}), "dedup", "")
flags.BoolVar(&dry, "dry", false, "")
flags.Var((funcVar)(func(s string) error {
c.Exec.Enabled = config.Bool(true)
c.Exec.Command = config.String(s)
return nil
}), "exec", "")
flags.Var((funcVar)(func(s string) error {
sig, err := signals.Parse(s)
if err != nil {
return err
}
c.Exec.KillSignal = config.Signal(sig)
return nil
}), "exec-kill-signal", "")
flags.Var((funcDurationVar)(func(d time.Duration) error {
c.Exec.KillTimeout = config.TimeDuration(d)
return nil
}), "exec-kill-timeout", "")
flags.Var((funcVar)(func(s string) error {
sig, err := signals.Parse(s)
if err != nil {
return err
}
c.Exec.ReloadSignal = config.Signal(sig)
return nil
}), "exec-reload-signal", "")
flags.Var((funcDurationVar)(func(d time.Duration) error {
c.Exec.Splay = config.TimeDuration(d)
return nil
}), "exec-splay", "")
flags.Var((funcVar)(func(s string) error {
sig, err := signals.Parse(s)
if err != nil {
return err
}
c.KillSignal = config.Signal(sig)
return nil
}), "kill-signal", "")
flags.Var((funcVar)(func(s string) error {
c.LogLevel = config.String(s)
return nil
}), "log-level", "")
flags.Var((funcDurationVar)(func(d time.Duration) error {
c.MaxStale = config.TimeDuration(d)
return nil
}), "max-stale", "")
flags.BoolVar(&once, "once", false, "")
flags.Var((funcVar)(func(s string) error {
c.PidFile = config.String(s)
return nil
}), "pid-file", "")
flags.Var((funcVar)(func(s string) error {
sig, err := signals.Parse(s)
if err != nil {
return err
}
c.ReloadSignal = config.Signal(sig)
return nil
}), "reload-signal", "")
flags.Var((funcDurationVar)(func(d time.Duration) error {
c.Consul.Retry.Backoff = config.TimeDuration(d)
return nil
}), "retry", "")
flags.Var((funcBoolVar)(func(b bool) error {
c.Syslog.Enabled = config.Bool(b)
return nil
}), "syslog", "")
flags.Var((funcVar)(func(s string) error {
c.Syslog.Facility = config.String(s)
return nil
}), "syslog-facility", "")
flags.Var((funcVar)(func(s string) error {
t, err := config.ParseTemplateConfig(s)
if err != nil {
return err
}
*c.Templates = append(*c.Templates, t)
return nil
}), "template", "")
flags.Var((funcVar)(func(s string) error {
c.Consul.Token = config.String(s)
return nil
}), "token", "")
flags.Var((funcVar)(func(s string) error {
c.Vault.Address = config.String(s)
return nil
}), "vault-addr", "")
flags.Var((funcBoolVar)(func(b bool) error {
c.Vault.RenewToken = config.Bool(b)
return nil
}), "vault-renew-token", "")
flags.Var((funcBoolVar)(func(b bool) error {
c.Vault.Retry.Enabled = config.Bool(b)
return nil
}), "vault-retry", "")
flags.Var((funcIntVar)(func(i int) error {
c.Vault.Retry.Attempts = config.Int(i)
return nil
}), "vault-retry-attempts", "")
flags.Var((funcDurationVar)(func(d time.Duration) error {
c.Vault.Retry.Backoff = config.TimeDuration(d)
return nil
}), "vault-retry-backoff", "")
flags.Var((funcBoolVar)(func(b bool) error {
c.Vault.SSL.Enabled = config.Bool(b)
return nil
}), "vault-ssl", "")
flags.Var((funcVar)(func(s string) error {
c.Vault.SSL.CaCert = config.String(s)
return nil
}), "vault-ssl-ca-cert", "")
flags.Var((funcVar)(func(s string) error {
c.Vault.SSL.CaPath = config.String(s)
return nil
}), "vault-ssl-ca-path", "")
flags.Var((funcVar)(func(s string) error {
c.Vault.SSL.Cert = config.String(s)
return nil
}), "vault-ssl-cert", "")
flags.Var((funcVar)(func(s string) error {
c.Vault.SSL.Key = config.String(s)
return nil
}), "vault-ssl-key", "")
flags.Var((funcVar)(func(s string) error {
c.Vault.SSL.ServerName = config.String(s)
return nil
}), "vault-ssl-server-name", "")
flags.Var((funcBoolVar)(func(b bool) error {
c.Vault.SSL.Verify = config.Bool(b)
return nil
}), "vault-ssl-verify", "")
flags.Var((funcVar)(func(s string) error {
c.Vault.Token = config.String(s)
return nil
}), "vault-token", "")
flags.Var((funcBoolVar)(func(b bool) error {
c.Vault.UnwrapToken = config.Bool(b)
return nil
}), "vault-unwrap-token", "")
flags.Var((funcVar)(func(s string) error {
w, err := config.ParseWaitConfig(s)
if err != nil {
return err
}
c.Wait = w
return nil
}), "wait", "")
flags.BoolVar(&version, "v", false, "")
flags.BoolVar(&version, "version", false, "")
// TODO: Deprecations
for i, a := range args {
if a == "-auth" || strings.HasPrefix(a, "-auth=") {
log.Println("[WARN] -auth has been renamed to -consul-auth")
args[i] = strings.Replace(a, "-auth", "-consul-auth", 1)
}
if a == "-consul" || strings.HasPrefix(a, "-consul=") {
log.Println("[WARN] -consul has been renamed to -consul-addr")
args[i] = strings.Replace(a, "-consul", "-consul-addr", 1)
}
if strings.HasPrefix(a, "-ssl") {
log.Println("[WARN] -ssl options should be prefixed with -consul")
args[i] = strings.Replace(a, "-ssl", "-consul-ssl", 1)
}
}
// If there was a parser error, stop
if err := flags.Parse(args); err != nil {
return nil, false, false, false, err
}
// Error if extra arguments are present
args = flags.Args()
if len(args) > 0 {
return nil, false, false, false, fmt.Errorf("cli: extra args: %q", args)
}
// Create the final configuration
finalC := config.DefaultConfig()
// Merge all the provided configurations in the order supplied
for _, path := range configPaths {
c, err := config.FromPath(path)
if err != nil {
return nil, false, false, false, err
}
finalC = finalC.Merge(c)
}
// Add any CLI configuration options, since that's highest precedence
finalC = finalC.Merge(c)
// Finalize the configuration
finalC.Finalize()
return finalC, once, dry, version, nil
}
func TestParseConfig_correctValues(t *testing.T) {
configFile := test.CreateTempfile([]byte(`
consul = "nyc1.demo.consul.io"
max_stale = "5s"
token = "abcd1234"
wait = "5s:10s"
retry = "10s"
pid_file = "/var/run/ct"
log_level = "warn"
status_dir = "global/statuses/replicators"
auth {
enabled = true
username = "******"
password = "******"
}
ssl {
enabled = true
verify = false
}
syslog {
enabled = true
facility = "LOCAL5"
}
`), t)
defer test.DeleteTempfile(configFile, t)
c, err := ParseConfig(configFile.Name())
if err != nil {
t.Fatal(err)
}
expected := &Config{
Path: configFile.Name(),
PidFile: "/var/run/ct",
Consul: "nyc1.demo.consul.io",
Token: "abcd1234",
MaxStale: time.Second * 5,
Auth: &AuthConfig{
Enabled: true,
Username: "******",
Password: "******",
},
Prefixes: []*Prefix{},
Excludes: []*Exclude{},
SSL: &SSLConfig{
Enabled: true,
Verify: false,
},
Syslog: &SyslogConfig{
Enabled: true,
Facility: "LOCAL5",
},
Wait: &config.WaitConfig{
Min: config.TimeDuration(time.Second * 5),
Max: config.TimeDuration(time.Second * 10),
},
Retry: 10 * time.Second,
LogLevel: "warn",
StatusDir: "global/statuses/replicators",
setKeys: c.setKeys,
}
if !reflect.DeepEqual(c, expected) {
t.Fatalf("expected \n%#v\n\n, got \n\n%#v\n\n", expected, c)
}
}