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package entities
import (
"context"
"fmt"
"io"
"os"
"github.com/containers/buildah/pkg/parse"
"github.com/containers/common/pkg/config"
"github.com/containers/common/pkg/sysinfo"
"github.com/containers/libpod/pkg/apparmor"
"github.com/containers/libpod/pkg/cgroups"
"github.com/containers/libpod/pkg/rootless"
"github.com/opencontainers/selinux/go-selinux"
"github.com/opentracing/opentracing-go"
"github.com/spf13/pflag"
)
// EngineMode is the connection type podman is using to access libpod
type EngineMode string
const (
ABIMode = EngineMode("abi")
TunnelMode = EngineMode("tunnel")
)
// Convert EngineMode to String
func (m EngineMode) String() string {
return string(m)
}
// PodmanConfig combines the defaults and settings from the file system with the
// flags given in os.Args. Some runtime state is also stored here.
type PodmanConfig struct {
*config.Config
*pflag.FlagSet
CGroupUsage string // rootless code determines Usage message
ConmonPath string // --conmon flag will set Engine.ConmonPath
CpuProfile string // Hidden: Should CPU profile be taken
EngineMode EngineMode // ABI or Tunneling mode
Identities []string // ssh identities for connecting to server
MaxWorks int // maximum number of parallel threads
RuntimePath string // --runtime flag will set Engine.RuntimePath
SpanCloser io.Closer // Close() for tracing object
SpanCtx context.Context // context to use when tracing
Span opentracing.Span // tracing object
Syslog bool // write to StdOut and Syslog, not supported when tunneling
Trace bool // Hidden: Trace execution
Uri string // URI to API Service
Runroot string
StorageDriver string
StorageOpts []string
}
// DefaultSecurityOptions: getter for security options from configuration
func (c PodmanConfig) DefaultSecurityOptions() []string {
securityOpts := []string{}
if c.Containers.SeccompProfile != "" && c.Containers.SeccompProfile != parse.SeccompDefaultPath {
securityOpts = append(securityOpts, fmt.Sprintf("seccomp=%s", c.Containers.SeccompProfile))
}
if apparmor.IsEnabled() && c.Containers.ApparmorProfile != "" {
securityOpts = append(securityOpts, fmt.Sprintf("apparmor=%s", c.Containers.ApparmorProfile))
}
if selinux.GetEnabled() && !c.Containers.EnableLabeling {
securityOpts = append(securityOpts, fmt.Sprintf("label=%s", selinux.DisableSecOpt()[0]))
}
return securityOpts
}
// DefaultSysctls
func (c PodmanConfig) DefaultSysctls() []string {
return c.Containers.DefaultSysctls
}
func (c PodmanConfig) DefaultVolumes() []string {
return c.Containers.Volumes
}
func (c PodmanConfig) DefaultDevices() []string {
return c.Containers.Devices
}
func (c PodmanConfig) DefaultDNSServers() []string {
return c.Containers.DNSServers
}
func (c PodmanConfig) DefaultDNSSearches() []string {
return c.Containers.DNSSearches
}
func (c PodmanConfig) DefaultDNSOptions() []string {
return c.Containers.DNSOptions
}
func (c PodmanConfig) DefaultEnv() []string {
return c.Containers.Env
}
func (c PodmanConfig) DefaultInitPath() string {
return c.Containers.InitPath
}
func (c PodmanConfig) DefaultIPCNS() string {
return c.Containers.IPCNS
}
func (c PodmanConfig) DefaultPidNS() string {
return c.Containers.PidNS
}
func (c PodmanConfig) DefaultNetNS() string {
if c.Containers.NetNS == "private" && rootless.IsRootless() {
return "slirp4netns"
}
return c.Containers.NetNS
}
func (c PodmanConfig) DefaultCgroupNS() string {
return c.Containers.CgroupNS
}
func (c PodmanConfig) DefaultUTSNS() string {
return c.Containers.UTSNS
}
func (c PodmanConfig) DefaultShmSize() string {
return c.Containers.ShmSize
}
func (c PodmanConfig) DefaultUlimits() []string {
return c.Containers.DefaultUlimits
}
func (c PodmanConfig) DefaultUserNS() string {
if v, found := os.LookupEnv("PODMAN_USERNS"); found {
return v
}
return c.Containers.UserNS
}
func (c PodmanConfig) DefaultPidsLimit() int64 {
if rootless.IsRootless() {
cgroup2, _ := cgroups.IsCgroup2UnifiedMode()
if cgroup2 {
return c.Containers.PidsLimit
}
}
return sysinfo.GetDefaultPidsLimit()
}
func (c PodmanConfig) DefaultPidsDescription() string {
return "Tune container pids limit (set 0 for unlimited)"
}
func (c PodmanConfig) DefaultDetachKeys() string {
return c.Engine.DetachKeys
}
// TODO: Remove in rootless support PR
// // EngineOptions holds the environment for running the engines
// type EngineOptions struct {
// // Introduced with V2
// Uri string
// Identities []string
// FlagSet *pflag.FlagSet
// EngineMode EngineMode
// CGroupUsage string
//
// // Introduced with V1
// CGroupManager string // config.EngineConfig
// CniConfigDir string // config.NetworkConfig.NetworkConfigDir
// ConmonPath string // config.EngineConfig
// DefaultMountsFile string // config.ContainersConfig
// EventsBackend string // config.EngineConfig.EventsLogger
// HooksDir []string // config.EngineConfig
// MaxWorks int
// Namespace string // config.EngineConfig
// Root string //
// Runroot string // config.EngineConfig.StorageConfigRunRootSet??
// Runtime string // config.EngineConfig.OCIRuntime
// StorageDriver string // config.EngineConfig.StorageConfigGraphDriverNameSet??
// StorageOpts []string
// Syslog bool
// Trace bool
// NetworkCmdPath string // config.EngineConfig
//
// Config string
// CpuProfile string
// LogLevel string
// TmpDir string // config.EngineConfig
//
// RemoteUserName string // deprecated
// RemoteHost string // deprecated
// VarlinkAddress string // deprecated
// ConnectionName string
// RemoteConfigFilePath string
// Port int // deprecated
// IdentityFile string // deprecated
// IgnoreHosts bool
// }
//
// func NewEngineOptions(opts EngineOptions) (EngineOptions, error) {
// ctnrCfg, err := config.Default()
// if err != nil {
// logrus.Error(err)
// os.Exit(1)
// }
//
// cgroupManager := ctnrCfg.Engine.CgroupManager
// cgroupUsage := `Cgroup manager to use ("cgroupfs"|"systemd")`
// cgroupv2, _ := cgroups.IsCgroup2UnifiedMode()
// cniPluginDir := ctnrCfg.Network.CNIPluginDirs[0]
//
// cfg, err := config.NewConfig("")
// if err != nil {
// logrus.Errorf("Error loading container config %v\n", err)
// os.Exit(1)
// }
// cfg.CheckCgroupsAndAdjustConfig()
//
// if rootless.IsRootless() {
// if !cgroupv2 {
// cgroupManager = ""
// cgroupUsage = "Cgroup manager is not supported in rootless mode"
// }
// cniPluginDir = ""
// }
//
// return EngineOptions{
// CGroupManager: cgroupManager,
// CGroupUsage: cgroupUsage,
// CniConfigDir: cniPluginDir,
// Config: opts.Config, // TODO: deprecate
// ConmonPath: opts.ConmonPath,
// ConnectionName: opts.ConnectionName,
// CpuProfile: opts.CpuProfile,
// DefaultMountsFile: ctnrCfg.Containers.DefaultMountsFile,
// EngineMode: opts.EngineMode,
// EventsBackend: ctnrCfg.Engine.EventsLogger,
// FlagSet: opts.FlagSet, // TODO: deprecate
// HooksDir: append(ctnrCfg.Engine.HooksDir[:0:0], ctnrCfg.Engine.HooksDir...),
// Identities: append(opts.Identities[:0:0], opts.Identities...),
// IdentityFile: opts.IdentityFile, // TODO: deprecate
// IgnoreHosts: opts.IgnoreHosts,
// LogLevel: opts.LogLevel,
// MaxWorks: opts.MaxWorks,
// Namespace: ctnrCfg.Engine.Namespace,
// NetworkCmdPath: ctnrCfg.Engine.NetworkCmdPath,
// Port: opts.Port,
// RemoteConfigFilePath: opts.RemoteConfigFilePath,
// RemoteHost: opts.RemoteHost, // TODO: deprecate
// RemoteUserName: opts.RemoteUserName, // TODO: deprecate
// Root: opts.Root,
// Runroot: opts.Runroot,
// Runtime: opts.Runtime,
// StorageDriver: opts.StorageDriver,
// StorageOpts: append(opts.StorageOpts[:0:0], opts.StorageOpts...),
// Syslog: opts.Syslog,
// TmpDir: opts.TmpDir,
// Trace: opts.Trace,
// Uri: opts.Uri,
// VarlinkAddress: opts.VarlinkAddress,
// }, nil
// }
|
