mirror of https://github.com/docker/cli.git
124 lines
3.9 KiB
Go
124 lines
3.9 KiB
Go
package flags
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import (
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"fmt"
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"os"
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"path/filepath"
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"github.com/Sirupsen/logrus"
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"github.com/docker/docker/cliconfig"
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"github.com/docker/docker/opts"
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flag "github.com/docker/docker/pkg/mflag"
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"github.com/docker/go-connections/tlsconfig"
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)
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const (
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// DefaultTrustKeyFile is the default filename for the trust key
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DefaultTrustKeyFile = "key.json"
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// DefaultCaFile is the default filename for the CA pem file
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DefaultCaFile = "ca.pem"
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// DefaultKeyFile is the default filename for the key pem file
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DefaultKeyFile = "key.pem"
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// DefaultCertFile is the default filename for the cert pem file
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DefaultCertFile = "cert.pem"
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// TLSVerifyKey is the default flag name for the tls verification option
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TLSVerifyKey = "tlsverify"
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)
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var (
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dockerCertPath = os.Getenv("DOCKER_CERT_PATH")
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dockerTLSVerify = os.Getenv("DOCKER_TLS_VERIFY") != ""
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)
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// CommonFlags are flags common to both the client and the daemon.
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type CommonFlags struct {
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FlagSet *flag.FlagSet
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PostParse func()
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Debug bool
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Hosts []string
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LogLevel string
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TLS bool
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TLSVerify bool
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TLSOptions *tlsconfig.Options
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TrustKey string
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}
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// InitCommonFlags initializes flags common to both client and daemon
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func InitCommonFlags() *CommonFlags {
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var commonFlags = &CommonFlags{FlagSet: new(flag.FlagSet)}
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if dockerCertPath == "" {
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dockerCertPath = cliconfig.ConfigDir()
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}
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commonFlags.PostParse = func() { postParseCommon(commonFlags) }
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cmd := commonFlags.FlagSet
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cmd.BoolVar(&commonFlags.Debug, []string{"D", "-debug"}, false, "Enable debug mode")
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cmd.StringVar(&commonFlags.LogLevel, []string{"l", "-log-level"}, "info", "Set the logging level")
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cmd.BoolVar(&commonFlags.TLS, []string{"-tls"}, false, "Use TLS; implied by --tlsverify")
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cmd.BoolVar(&commonFlags.TLSVerify, []string{"-tlsverify"}, dockerTLSVerify, "Use TLS and verify the remote")
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// TODO use flag flag.String([]string{"i", "-identity"}, "", "Path to libtrust key file")
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var tlsOptions tlsconfig.Options
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commonFlags.TLSOptions = &tlsOptions
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cmd.StringVar(&tlsOptions.CAFile, []string{"-tlscacert"}, filepath.Join(dockerCertPath, DefaultCaFile), "Trust certs signed only by this CA")
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cmd.StringVar(&tlsOptions.CertFile, []string{"-tlscert"}, filepath.Join(dockerCertPath, DefaultCertFile), "Path to TLS certificate file")
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cmd.StringVar(&tlsOptions.KeyFile, []string{"-tlskey"}, filepath.Join(dockerCertPath, DefaultKeyFile), "Path to TLS key file")
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cmd.Var(opts.NewNamedListOptsRef("hosts", &commonFlags.Hosts, opts.ValidateHost), []string{"H", "-host"}, "Daemon socket(s) to connect to")
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return commonFlags
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}
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func postParseCommon(commonFlags *CommonFlags) {
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cmd := commonFlags.FlagSet
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SetDaemonLogLevel(commonFlags.LogLevel)
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// Regardless of whether the user sets it to true or false, if they
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// specify --tlsverify at all then we need to turn on tls
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// TLSVerify can be true even if not set due to DOCKER_TLS_VERIFY env var, so we need
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// to check that here as well
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if cmd.IsSet("-"+TLSVerifyKey) || commonFlags.TLSVerify {
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commonFlags.TLS = true
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}
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if !commonFlags.TLS {
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commonFlags.TLSOptions = nil
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} else {
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tlsOptions := commonFlags.TLSOptions
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tlsOptions.InsecureSkipVerify = !commonFlags.TLSVerify
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// Reset CertFile and KeyFile to empty string if the user did not specify
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// the respective flags and the respective default files were not found.
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if !cmd.IsSet("-tlscert") {
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if _, err := os.Stat(tlsOptions.CertFile); os.IsNotExist(err) {
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tlsOptions.CertFile = ""
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}
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}
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if !cmd.IsSet("-tlskey") {
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if _, err := os.Stat(tlsOptions.KeyFile); os.IsNotExist(err) {
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tlsOptions.KeyFile = ""
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}
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}
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}
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}
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// SetDaemonLogLevel sets the logrus logging level
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// TODO: this is a bad name, it applies to the client as well.
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func SetDaemonLogLevel(logLevel string) {
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if logLevel != "" {
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lvl, err := logrus.ParseLevel(logLevel)
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if err != nil {
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fmt.Fprintf(os.Stderr, "Unable to parse logging level: %s\n", logLevel)
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os.Exit(1)
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}
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logrus.SetLevel(lvl)
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} else {
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logrus.SetLevel(logrus.InfoLevel)
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}
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}
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