diff options
Diffstat (limited to 'libpod/runtime.go')
| -rw-r--r-- | libpod/runtime.go | 32 |
1 files changed, 21 insertions, 11 deletions
diff --git a/libpod/runtime.go b/libpod/runtime.go index 63b8c971e..736169932 100644 --- a/libpod/runtime.go +++ b/libpod/runtime.go @@ -164,6 +164,14 @@ type RuntimeConfig struct { InfraImage string `toml:"infra_image"` // InfraCommand is the command run to start up a pod infra container InfraCommand string `toml:"infra_command"` + // EnablePortReservation determines whether libpod will reserve ports on + // the host when they are forwarded to containers. + // When enabled, when ports are forwarded to containers, they are + // held open by conmon as long as the container is running, ensuring + // that they cannot be reused by other programs on the host. + // However, this can cause significant memory usage if a container has + // many ports forwarded to it. Disabling this can save memory. + EnablePortReservation bool `toml:"enable_port_reservation"` } var ( @@ -190,16 +198,17 @@ var ( ConmonEnvVars: []string{ "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin", }, - CgroupManager: SystemdCgroupsManager, - HooksDir: hooks.DefaultDir, - StaticDir: filepath.Join(storage.DefaultStoreOptions.GraphRoot, "libpod"), - TmpDir: "", - MaxLogSize: -1, - NoPivotRoot: false, - CNIConfigDir: "/etc/cni/net.d/", - CNIPluginDir: []string{"/usr/libexec/cni", "/usr/lib/cni", "/opt/cni/bin"}, - InfraCommand: DefaultInfraCommand, - InfraImage: DefaultInfraImage, + CgroupManager: SystemdCgroupsManager, + HooksDir: hooks.DefaultDir, + StaticDir: filepath.Join(storage.DefaultStoreOptions.GraphRoot, "libpod"), + TmpDir: "", + MaxLogSize: -1, + NoPivotRoot: false, + CNIConfigDir: "/etc/cni/net.d/", + CNIPluginDir: []string{"/usr/libexec/cni", "/usr/lib/cni", "/opt/cni/bin"}, + InfraCommand: DefaultInfraCommand, + InfraImage: DefaultInfraImage, + EnablePortReservation: true, } ) @@ -467,7 +476,8 @@ func makeRuntime(runtime *Runtime) (err error) { ociRuntime, err := newOCIRuntime("runc", runtime.ociRuntimePath, runtime.conmonPath, runtime.config.ConmonEnvVars, runtime.config.CgroupManager, runtime.config.TmpDir, - runtime.config.MaxLogSize, runtime.config.NoPivotRoot) + runtime.config.MaxLogSize, runtime.config.NoPivotRoot, + runtime.config.EnablePortReservation) if err != nil { return err } |