mirror of
https://github.com/containers/podman.git
synced 2025-11-04 00:50:15 +08:00
63a8926e96
While only leveraged by the WSL backend, this commit also adds core infrastructure for all other backends for future enhancement. - Adds a common port cross backend allocation registry to prevent duplicate assignment across multiple machine instances - Introduces logic in Start() that detects OS port conflicts and scans for a viable replacement port - Updates connection definitions and server configuration accordingly - Utilizes a coordinated file lock strategy to prevent racing overwrites of port and connection registries - WSL backend coordinates locking for containers.conf until a future common enhancement exists to replace it [NO NEW TESTS NEEDED] Signed-off-by: Jason T. Greene <jason.greene@redhat.com>
121 lines
2.5 KiB
Go
121 lines
2.5 KiB
Go
//go:build amd64 || arm64
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// +build amd64 arm64
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package machine
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import (
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"errors"
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"fmt"
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"os"
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"github.com/containers/common/pkg/config"
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"github.com/sirupsen/logrus"
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)
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const LocalhostIP = "127.0.0.1"
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func AddConnection(uri fmt.Stringer, name, identity string, isDefault bool) error {
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if len(identity) < 1 {
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return errors.New("identity must be defined")
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}
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cfg, err := config.ReadCustomConfig()
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if err != nil {
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return err
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}
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if _, ok := cfg.Engine.ServiceDestinations[name]; ok {
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return errors.New("cannot overwrite connection")
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}
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if isDefault {
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cfg.Engine.ActiveService = name
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}
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dst := config.Destination{
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URI: uri.String(),
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IsMachine: true,
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}
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dst.Identity = identity
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if cfg.Engine.ServiceDestinations == nil {
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cfg.Engine.ServiceDestinations = map[string]config.Destination{
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name: dst,
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}
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cfg.Engine.ActiveService = name
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} else {
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cfg.Engine.ServiceDestinations[name] = dst
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}
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return cfg.Write()
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}
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func AnyConnectionDefault(name ...string) (bool, error) {
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cfg, err := config.ReadCustomConfig()
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if err != nil {
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return false, err
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}
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for _, n := range name {
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if n == cfg.Engine.ActiveService {
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return true, nil
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}
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}
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return false, nil
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}
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func ChangeConnectionURI(name string, uri fmt.Stringer) error {
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cfg, err := config.ReadCustomConfig()
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if err != nil {
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return err
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}
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dst, ok := cfg.Engine.ServiceDestinations[name]
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if !ok {
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return errors.New("connection not found")
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}
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dst.URI = uri.String()
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cfg.Engine.ServiceDestinations[name] = dst
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return cfg.Write()
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}
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func ChangeDefault(name string) error {
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cfg, err := config.ReadCustomConfig()
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if err != nil {
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return err
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}
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cfg.Engine.ActiveService = name
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return cfg.Write()
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}
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func RemoveConnections(names ...string) error {
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cfg, err := config.ReadCustomConfig()
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if err != nil {
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return err
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}
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for _, name := range names {
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if _, ok := cfg.Engine.ServiceDestinations[name]; ok {
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delete(cfg.Engine.ServiceDestinations, name)
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} else {
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return fmt.Errorf("unable to find connection named %q", name)
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}
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if cfg.Engine.ActiveService == name {
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cfg.Engine.ActiveService = ""
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for service := range cfg.Engine.ServiceDestinations {
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cfg.Engine.ActiveService = service
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break
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}
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}
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}
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return cfg.Write()
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}
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// removeFilesAndConnections removes any files and connections with the given names
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func RemoveFilesAndConnections(files []string, names ...string) {
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for _, f := range files {
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if err := os.Remove(f); err != nil && !errors.Is(err, os.ErrNotExist) {
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logrus.Error(err)
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}
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}
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if err := RemoveConnections(names...); err != nil {
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logrus.Error(err)
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}
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}
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