diff options
| -rw-r--r-- | cmd/podman/system/service_abi.go | 26 | ||||
| -rw-r--r-- | cmd/podman/utils/signals_linux.go | 14 | ||||
| -rw-r--r-- | cmd/podman/utils/signals_windows.go | 14 | ||||
| -rw-r--r-- | libpod/runtime.go | 49 |
4 files changed, 103 insertions, 0 deletions
diff --git a/cmd/podman/system/service_abi.go b/cmd/podman/system/service_abi.go index 6c6dd42a4..95cbd19d9 100644 --- a/cmd/podman/system/service_abi.go +++ b/cmd/podman/system/service_abi.go @@ -5,8 +5,12 @@ package system import ( "context" "net" + "os" + "os/signal" "strings" + "github.com/containers/podman/v2/cmd/podman/utils" + "github.com/containers/podman/v2/libpod" api "github.com/containers/podman/v2/pkg/api/server" "github.com/containers/podman/v2/pkg/domain/entities" "github.com/containers/podman/v2/pkg/domain/infra" @@ -39,6 +43,7 @@ func restService(opts entities.ServiceOptions, flags *pflag.FlagSet, cfg *entiti return err } + startWatcher(rt) server, err := api.NewServerWithSettings(rt, opts.Timeout, listener) if err != nil { return err @@ -55,3 +60,24 @@ func restService(opts entities.ServiceOptions, flags *pflag.FlagSet, cfg *entiti } return err } + +// startWatcher starts a new SIGHUP go routine for the current config. +func startWatcher(rt *libpod.Runtime) { + // Setup the signal notifier + ch := make(chan os.Signal, 1) + signal.Notify(ch, utils.SIGHUP) + + go func() { + for { + // Block until the signal is received + logrus.Debugf("waiting for SIGHUP to reload configuration") + <-ch + if err := rt.Reload(); err != nil { + logrus.Errorf("unable to reload configuration: %v", err) + continue + } + } + }() + + logrus.Debugf("registered SIGHUP watcher for config") +} diff --git a/cmd/podman/utils/signals_linux.go b/cmd/podman/utils/signals_linux.go new file mode 100644 index 000000000..f0a14aff0 --- /dev/null +++ b/cmd/podman/utils/signals_linux.go @@ -0,0 +1,14 @@ +// +build !windows + +package utils + +import ( + "os" + + "golang.org/x/sys/unix" +) + +// Platform specific signal synonyms +var ( + SIGHUP os.Signal = unix.SIGHUP +) diff --git a/cmd/podman/utils/signals_windows.go b/cmd/podman/utils/signals_windows.go new file mode 100644 index 000000000..30b058cb9 --- /dev/null +++ b/cmd/podman/utils/signals_windows.go @@ -0,0 +1,14 @@ +// +build windows + +package utils + +import ( + "os" + + "golang.org/x/sys/windows" +) + +// Platform specific signal synonyms +var ( + SIGHUP os.Signal = windows.SIGHUP +) diff --git a/libpod/runtime.go b/libpod/runtime.go index 8a7053e33..1d2e624d8 100644 --- a/libpod/runtime.go +++ b/libpod/runtime.go @@ -10,6 +10,7 @@ import ( "syscall" "github.com/containers/common/pkg/config" + "github.com/containers/image/v5/pkg/sysregistriesv2" is "github.com/containers/image/v5/storage" "github.com/containers/image/v5/types" "github.com/containers/podman/v2/libpod/define" @@ -17,6 +18,7 @@ import ( "github.com/containers/podman/v2/libpod/image" "github.com/containers/podman/v2/libpod/lock" "github.com/containers/podman/v2/pkg/cgroups" + "github.com/containers/podman/v2/pkg/registries" "github.com/containers/podman/v2/pkg/rootless" "github.com/containers/podman/v2/pkg/util" "github.com/containers/storage" @@ -816,3 +818,50 @@ func (r *Runtime) mergeDBConfig(dbConfig *DBConfig) { func (r *Runtime) EnableLabeling() bool { return r.config.Containers.EnableLabeling } + +// Reload reloads the configurations files +func (r *Runtime) Reload() error { + if err := r.reloadContainersConf(); err != nil { + return err + } + if err := r.reloadStorageConf(); err != nil { + return err + } + if err := reloadRegistriesConf(); err != nil { + return err + } + return nil +} + +// reloadContainersConf reloads the containers.conf +func (r *Runtime) reloadContainersConf() error { + config, err := config.Reload() + if err != nil { + return err + } + r.config = config + logrus.Infof("applied new containers configuration: %v", config) + return nil +} + +// reloadRegistries reloads the registries.conf +func reloadRegistriesConf() error { + sysregistriesv2.InvalidateCache() + registries, err := sysregistriesv2.GetRegistries(&types.SystemContext{SystemRegistriesConfPath: registries.SystemRegistriesConfPath()}) + if err != nil { + return err + } + logrus.Infof("applied new registry configuration: %+v", registries) + return nil +} + +// reloadStorageConf reloads the storage.conf +func (r *Runtime) reloadStorageConf() error { + configFile, err := storage.DefaultConfigFile(rootless.IsRootless()) + if err != nil { + return err + } + storage.ReloadConfigurationFile(configFile, &r.storageConfig) + logrus.Infof("applied new storage configuration: %v", r.storageConfig) + return nil +} |