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package registry
import (
"strings"
"github.com/containers/podman/v3/utils"
"github.com/pkg/errors"
"github.com/sirupsen/logrus"
)
const (
imageKey = "PODMAN_REGISTRY_IMAGE"
userKey = "PODMAN_REGISTRY_USER"
passKey = "PODMAN_REGISTRY_PASS"
portKey = "PODMAN_REGISTRY_PORT"
)
var binary = "podman-registry"
// Registry is locally running registry.
type Registry struct {
// Image - container image of the registry.
Image string
// User - the user to authenticate against the registry.
User string
// Password - the accompanying password for the user.
Password string
// Port - the port the registry is listening to on the host.
Port string
// running indicates if the registry is running.
running bool
}
// Start a new registry and return it along with it's image, user, password, and port.
func Start() (*Registry, error) {
// Start a registry.
out, err := utils.ExecCmd(binary, "start")
if err != nil {
return nil, errors.Wrapf(err, "error running %q: %s", binary, out)
}
// Parse the output.
registry := Registry{}
for _, s := range strings.Split(out, "\n") {
if s == "" {
continue
}
spl := strings.Split(s, "=")
if len(spl) != 2 {
return nil, errors.Errorf("unexpected output format %q: want 'PODMAN_...=...'", s)
}
key := spl[0]
val := strings.TrimSuffix(strings.TrimPrefix(spl[1], "\""), "\"")
switch key {
case imageKey:
registry.Image = val
case userKey:
registry.User = val
case passKey:
registry.Password = val
case portKey:
registry.Port = val
default:
logrus.Errorf("unexpected podman-registry output: %q", s)
}
}
// Extra sanity check.
if registry.Image == "" {
return nil, errors.Errorf("unexpected output %q: %q missing", out, imageKey)
}
if registry.User == "" {
return nil, errors.Errorf("unexpected output %q: %q missing", out, userKey)
}
if registry.Password == "" {
return nil, errors.Errorf("unexpected output %q: %q missing", out, passKey)
}
if registry.Port == "" {
return nil, errors.Errorf("unexpected output %q: %q missing", out, portKey)
}
registry.running = true
return ®istry, nil
}
// Stop the registry.
func (r *Registry) Stop() error {
// Stop a registry.
if !r.running {
return nil
}
if _, err := utils.ExecCmd(binary, "-P", r.Port, "stop"); err != nil {
return errors.Wrapf(err, "error stopping registry (%v) with %q", *r, binary)
}
r.running = false
return nil
}
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