github.com/kaisenlinux/docker.io@v0.0.0-20230510090727-ea55db55fac7/engine/cmd/dockerd/config_common_unix.go (about)

     1  //go:build linux || freebsd
     2  // +build linux freebsd
     3  
     4  package main
     5  
     6  import (
     7  	"path/filepath"
     8  
     9  	"github.com/docker/docker/api/types"
    10  	"github.com/docker/docker/daemon/config"
    11  	"github.com/docker/docker/opts"
    12  	"github.com/docker/docker/pkg/homedir"
    13  	"github.com/spf13/pflag"
    14  )
    15  
    16  func getDefaultPidFile() (string, error) {
    17  	if !honorXDG {
    18  		return "/var/run/docker.pid", nil
    19  	}
    20  	runtimeDir, err := homedir.GetRuntimeDir()
    21  	if err != nil {
    22  		return "", err
    23  	}
    24  	return filepath.Join(runtimeDir, "docker.pid"), nil
    25  }
    26  
    27  func getDefaultDataRoot() (string, error) {
    28  	if !honorXDG {
    29  		return "/var/lib/docker", nil
    30  	}
    31  	dataHome, err := homedir.GetDataHome()
    32  	if err != nil {
    33  		return "", err
    34  	}
    35  	return filepath.Join(dataHome, "docker"), nil
    36  }
    37  
    38  func getDefaultExecRoot() (string, error) {
    39  	if !honorXDG {
    40  		return "/var/run/docker", nil
    41  	}
    42  	runtimeDir, err := homedir.GetRuntimeDir()
    43  	if err != nil {
    44  		return "", err
    45  	}
    46  	return filepath.Join(runtimeDir, "docker"), nil
    47  }
    48  
    49  // installUnixConfigFlags adds command-line options to the top-level flag parser for
    50  // the current process that are common across Unix platforms.
    51  func installUnixConfigFlags(conf *config.Config, flags *pflag.FlagSet) {
    52  	conf.Runtimes = make(map[string]types.Runtime)
    53  
    54  	flags.StringVarP(&conf.SocketGroup, "group", "G", "docker", "Group for the unix socket")
    55  	flags.StringVar(&conf.BridgeConfig.IP, "bip", "", "Specify network bridge IP")
    56  	flags.StringVarP(&conf.BridgeConfig.Iface, "bridge", "b", "", "Attach containers to a network bridge")
    57  	flags.StringVar(&conf.BridgeConfig.FixedCIDR, "fixed-cidr", "", "IPv4 subnet for fixed IPs")
    58  	flags.Var(opts.NewIPOpt(&conf.BridgeConfig.DefaultGatewayIPv4, ""), "default-gateway", "Container default gateway IPv4 address")
    59  	flags.Var(opts.NewIPOpt(&conf.BridgeConfig.DefaultGatewayIPv6, ""), "default-gateway-v6", "Container default gateway IPv6 address")
    60  	flags.BoolVar(&conf.BridgeConfig.InterContainerCommunication, "icc", true, "Enable inter-container communication")
    61  	flags.Var(opts.NewIPOpt(&conf.BridgeConfig.DefaultIP, "0.0.0.0"), "ip", "Default IP when binding container ports")
    62  	flags.Var(opts.NewNamedRuntimeOpt("runtimes", &conf.Runtimes, config.StockRuntimeName), "add-runtime", "Register an additional OCI compatible runtime")
    63  	flags.StringVar(&conf.DefaultRuntime, "default-runtime", config.StockRuntimeName, "Default OCI runtime for containers")
    64  
    65  }