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authorJhon Honce <jhonce@redhat.com>2021-06-29 16:24:03 -0700
committerJhon Honce <jhonce@redhat.com>2021-06-29 16:24:03 -0700
commit2ce78aace682084393f1cda07c2bca0bbb773c95 (patch)
tree75de4792437cb0f2e6d0209d1213910313bea027 /cmd/podman/system/connection
parent1846070f051d36950846787e0045a3ad4724ed66 (diff)
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Enhance system connection add URL input
* Add support for the tcp and unix schemes in connection URLs. Signed-off-by: Jhon Honce <jhonce@redhat.com>
Diffstat (limited to 'cmd/podman/system/connection')
-rw-r--r--cmd/podman/system/connection/add.go77
1 files changed, 57 insertions, 20 deletions
diff --git a/cmd/podman/system/connection/add.go b/cmd/podman/system/connection/add.go
index ecfeb6608..912193d0b 100644
--- a/cmd/podman/system/connection/add.go
+++ b/cmd/podman/system/connection/add.go
@@ -23,22 +23,24 @@ import (
"golang.org/x/crypto/ssh/agent"
)
-const schemaPattern = "^[A-Za-z][A-Za-z0-9+.-]*:"
-
var (
addCmd = &cobra.Command{
Use: "add [options] NAME DESTINATION",
Args: cobra.ExactArgs(2),
Short: "Record destination for the Podman service",
Long: `Add destination to podman configuration.
- "destination" is of the form [user@]hostname or
- an URI of the form ssh://[user@]hostname[:port]
+ "destination" is one of the form:
+ [user@]hostname (will default to ssh)
+ ssh://[user@]hostname[:port][/path] (will obtain socket path from service, if not given.)
+ tcp://hostname:port (not secured)
+ unix://path (absolute path required)
`,
RunE: add,
ValidArgsFunction: completion.AutocompleteNone,
Example: `podman system connection add laptop server.fubar.com
podman system connection add --identity ~/.ssh/dev_rsa testing ssh://root@server.fubar.com:2222
podman system connection add --identity ~/.ssh/dev_rsa --port 22 production root@server.fubar.com
+ podman system connection add debug tcp://localhost:8080
`,
}
@@ -74,9 +76,9 @@ func init() {
}
func add(cmd *cobra.Command, args []string) error {
- // Default to ssh: schema if none given
+ // Default to ssh schema if none given
dest := args[1]
- if match, err := regexp.Match(schemaPattern, []byte(dest)); err != nil {
+ if match, err := regexp.Match("^[A-Za-z][A-Za-z0-9+.-]*://", []byte(dest)); err != nil {
return errors.Wrapf(err, "invalid destination")
} else if !match {
dest = "ssh://" + dest
@@ -87,28 +89,63 @@ func add(cmd *cobra.Command, args []string) error {
return err
}
- if uri.User.Username() == "" {
- if uri.User, err = getUserInfo(uri); err != nil {
- return err
- }
- }
-
if cmd.Flags().Changed("socket-path") {
uri.Path = cmd.Flag("socket-path").Value.String()
}
- if cmd.Flags().Changed("port") {
- uri.Host = net.JoinHostPort(uri.Hostname(), cmd.Flag("port").Value.String())
- }
+ switch uri.Scheme {
+ case "ssh":
+ if uri.User.Username() == "" {
+ if uri.User, err = getUserInfo(uri); err != nil {
+ return err
+ }
+ }
- if uri.Port() == "" {
- uri.Host = net.JoinHostPort(uri.Hostname(), cmd.Flag("port").DefValue)
- }
+ if cmd.Flags().Changed("port") {
+ uri.Host = net.JoinHostPort(uri.Hostname(), cmd.Flag("port").Value.String())
+ }
- if uri.Path == "" || uri.Path == "/" {
- if uri.Path, err = getUDS(cmd, uri); err != nil {
+ if uri.Port() == "" {
+ uri.Host = net.JoinHostPort(uri.Hostname(), cmd.Flag("port").DefValue)
+ }
+
+ if uri.Path == "" || uri.Path == "/" {
+ if uri.Path, err = getUDS(cmd, uri); err != nil {
+ return err
+ }
+ }
+ case "unix":
+ if cmd.Flags().Changed("identity") {
+ return errors.New("--identity option not supported for unix scheme")
+ }
+
+ if cmd.Flags().Changed("socket-path") {
+ uri.Path = cmd.Flag("socket-path").Value.String()
+ }
+
+ info, err := os.Stat(uri.Path)
+ switch {
+ case errors.Is(err, os.ErrNotExist):
+ logrus.Warnf("%q does not exists", uri.Path)
+ case errors.Is(err, os.ErrPermission):
+ logrus.Warnf("You do not have permission to read %q", uri.Path)
+ case err != nil:
return err
+ case info.Mode()&os.ModeSocket == 0:
+ return fmt.Errorf("%q exists and is not a unix domain socket", uri.Path)
+ }
+ case "tcp":
+ if cmd.Flags().Changed("socket-path") {
+ return errors.New("--socket-path option not supported for tcp scheme")
+ }
+ if cmd.Flags().Changed("identity") {
+ return errors.New("--identity option not supported for tcp scheme")
+ }
+ if uri.Port() == "" {
+ return errors.New("tcp scheme requires a port either via --port or in destination URL")
}
+ default:
+ logrus.Warnf("%q unknown scheme, no validation provided", uri.Scheme)
}
cfg, err := config.ReadCustomConfig()