diff options
Diffstat (limited to 'runsc/main.go')
| -rw-r--r-- | runsc/main.go | 66 |
1 files changed, 34 insertions, 32 deletions
diff --git a/runsc/main.go b/runsc/main.go index c61583441..5eba949f6 100644 --- a/runsc/main.go +++ b/runsc/main.go @@ -63,17 +63,18 @@ var ( straceLogSize = flag.Uint("strace-log-size", 1024, "default size (in bytes) to log data argument blobs") // Flags that control sandbox runtime behavior. - platformName = flag.String("platform", "ptrace", "specifies which platform to use: ptrace (default), kvm") - network = flag.String("network", "sandbox", "specifies which network to use: sandbox (default), host, none. Using network inside the sandbox is more secure because it's isolated from the host network.") - gso = flag.Bool("gso", true, "enable generic segmenation offload") - fileAccess = flag.String("file-access", "exclusive", "specifies which filesystem to use for the root mount: exclusive (default), shared. Volume mounts are always shared.") - overlay = flag.Bool("overlay", false, "wrap filesystem mounts with writable overlay. All modifications are stored in memory inside the sandbox.") - watchdogAction = flag.String("watchdog-action", "log", "sets what action the watchdog takes when triggered: log (default), panic.") - panicSignal = flag.Int("panic-signal", -1, "register signal handling that panics. Usually set to SIGUSR2(12) to troubleshoot hangs. -1 disables it.") - profile = flag.Bool("profile", false, "prepares the sandbox to use Golang profiler. Note that enabling profiler loosens the seccomp protection added to the sandbox (DO NOT USE IN PRODUCTION).") - netRaw = flag.Bool("net-raw", false, "enable raw sockets. When false, raw sockets are disabled by removing CAP_NET_RAW from containers (`runsc exec` will still be able to utilize raw sockets). Raw sockets allow malicious containers to craft packets and potentially attack the network.") - numNetworkChannels = flag.Int("num-network-channels", 1, "number of underlying channels(FDs) to use for network link endpoints.") - rootless = flag.Bool("rootless", false, "it allows the sandbox to be started with a user that is not root. Sandbox and Gofer processes may run with same privileges as current user.") + platformName = flag.String("platform", "ptrace", "specifies which platform to use: ptrace (default), kvm") + network = flag.String("network", "sandbox", "specifies which network to use: sandbox (default), host, none. Using network inside the sandbox is more secure because it's isolated from the host network.") + gso = flag.Bool("gso", true, "enable generic segmenation offload") + fileAccess = flag.String("file-access", "exclusive", "specifies which filesystem to use for the root mount: exclusive (default), shared. Volume mounts are always shared.") + fsGoferHostUDSAllowed = flag.Bool("fsgofer-host-uds-allowed", false, "Allow the gofer to mount Unix Domain Sockets.") + overlay = flag.Bool("overlay", false, "wrap filesystem mounts with writable overlay. All modifications are stored in memory inside the sandbox.") + watchdogAction = flag.String("watchdog-action", "log", "sets what action the watchdog takes when triggered: log (default), panic.") + panicSignal = flag.Int("panic-signal", -1, "register signal handling that panics. Usually set to SIGUSR2(12) to troubleshoot hangs. -1 disables it.") + profile = flag.Bool("profile", false, "prepares the sandbox to use Golang profiler. Note that enabling profiler loosens the seccomp protection added to the sandbox (DO NOT USE IN PRODUCTION).") + netRaw = flag.Bool("net-raw", false, "enable raw sockets. When false, raw sockets are disabled by removing CAP_NET_RAW from containers (`runsc exec` will still be able to utilize raw sockets). Raw sockets allow malicious containers to craft packets and potentially attack the network.") + numNetworkChannels = flag.Int("num-network-channels", 1, "number of underlying channels(FDs) to use for network link endpoints.") + rootless = flag.Bool("rootless", false, "it allows the sandbox to be started with a user that is not root. Sandbox and Gofer processes may run with same privileges as current user.") // Test flags, not to be used outside tests, ever. testOnlyAllowRunAsCurrentUserWithoutChroot = flag.Bool("TESTONLY-unsafe-nonroot", false, "TEST ONLY; do not ever use! This skips many security measures that isolate the host from the sandbox.") @@ -171,27 +172,28 @@ func main() { // Create a new Config from the flags. conf := &boot.Config{ - RootDir: *rootDir, - Debug: *debug, - LogFilename: *logFilename, - LogFormat: *logFormat, - DebugLog: *debugLog, - DebugLogFormat: *debugLogFormat, - FileAccess: fsAccess, - Overlay: *overlay, - Network: netType, - GSO: *gso, - LogPackets: *logPackets, - Platform: platformType, - Strace: *strace, - StraceLogSize: *straceLogSize, - WatchdogAction: wa, - PanicSignal: *panicSignal, - ProfileEnable: *profile, - EnableRaw: *netRaw, - NumNetworkChannels: *numNetworkChannels, - Rootless: *rootless, - AlsoLogToStderr: *alsoLogToStderr, + RootDir: *rootDir, + Debug: *debug, + LogFilename: *logFilename, + LogFormat: *logFormat, + DebugLog: *debugLog, + DebugLogFormat: *debugLogFormat, + FileAccess: fsAccess, + FSGoferHostUDSAllowed: *fsGoferHostUDSAllowed, + Overlay: *overlay, + Network: netType, + GSO: *gso, + LogPackets: *logPackets, + Platform: platformType, + Strace: *strace, + StraceLogSize: *straceLogSize, + WatchdogAction: wa, + PanicSignal: *panicSignal, + ProfileEnable: *profile, + EnableRaw: *netRaw, + NumNetworkChannels: *numNetworkChannels, + Rootless: *rootless, + AlsoLogToStderr: *alsoLogToStderr, TestOnlyAllowRunAsCurrentUserWithoutChroot: *testOnlyAllowRunAsCurrentUserWithoutChroot, } |