config

package
v0.38.8 Latest Latest
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 Go to latest Published: Jun 10, 2021 License: Apache-2.0 Imports: 22 Imported by: 172

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Index

Constants

View Source 
const (

	// DefaultContainersConfig holds the default containers config path
	DefaultContainersConfig = "/usr/share/" + _configPath
	// OverrideContainersConfig holds the default config paths overridden by the root user
	OverrideContainersConfig = "/etc/" + _configPath
	// UserOverrideContainersConfig holds the containers config path overridden by the rootless user
	UserOverrideContainersConfig = ".config/" + _configPath
)
View Source 
const (

	// CgroupfsCgroupsManager represents cgroupfs native cgroup manager
	CgroupfsCgroupsManager = "cgroupfs"
	// DefaultApparmorProfile  specifies the default apparmor profile for the container.
	DefaultApparmorProfile = apparmor.Profile
	// SystemdCgroupsManager represents systemd native cgroup manager
	SystemdCgroupsManager = "systemd"
	// DefaultLogDriver is the default type of log files
	DefaultLogDriver = "k8s-file"
	// DefaultLogSizeMax is the default value for the maximum log size
	// allowed for a container. Negative values mean that no limit is imposed.
	DefaultLogSizeMax = -1
	// DefaultPidsLimit is the default value for maximum number of processes
	// allowed inside a container
	DefaultPidsLimit = 2048
	// DefaultPullPolicy pulls the image if it does not exist locally
	DefaultPullPolicy = "missing"
	// DefaultSignaturePolicyPath is the default value for the
	// policy.json file.
	DefaultSignaturePolicyPath = "/etc/containers/policy.json"
	// DefaultSubnet is the subnet that will be used for the default CNI
	// network.
	DefaultSubnet = "10.88.0.0/16"
	// DefaultRootlessSignaturePolicyPath is the location within
	// XDG_CONFIG_HOME of the rootless policy.json file.
	DefaultRootlessSignaturePolicyPath = "containers/policy.json"
	// DefaultShmSize default value
	DefaultShmSize = "65536k"
	// DefaultUserNSSize default value
	DefaultUserNSSize = 65536
	// OCIBufSize limits maximum LogSizeMax
	OCIBufSize = 8192
	// SeccompOverridePath if this exists it overrides the default seccomp path.
	SeccompOverridePath = _etcDir + "/containers/seccomp.json"
	// SeccompDefaultPath defines the default seccomp path.
	SeccompDefaultPath = _installPrefix + "/share/containers/seccomp.json"
)

Variables

View Source 
var (
	// DefaultInitPath is the default path to the container-init binary
	DefaultInitPath = "/usr/libexec/podman/catatonit"
	// DefaultInfraImage to use for infra container
	DefaultInfraImage = "k8s.gcr.io/pause:3.5"
	// DefaultRootlessSHMLockPath is the default path for rootless SHM locks
	DefaultRootlessSHMLockPath = "/libpod_rootless_lock"
	// DefaultDetachKeys is the default keys sequence for detaching a
	// container
	DefaultDetachKeys = "ctrl-p,ctrl-q"
	// ErrConmonOutdated indicates the version of conmon found (whether via the configuration or $PATH)
	// is out of date for the current podman version
	ErrConmonOutdated = errors.New("outdated conmon version")
	// ErrInvalidArg indicates that an invalid argument was passed
	ErrInvalidArg = errors.New("invalid argument")
	// DefaultHooksDirs defines the default hooks directory
	DefaultHooksDirs = []string{"/usr/share/containers/oci/hooks.d"}
	// DefaultCapabilities for the default_capabilities option in the containers.conf file
	DefaultCapabilities = []string{
		"CAP_AUDIT_WRITE",
		"CAP_CHOWN",
		"CAP_DAC_OVERRIDE",
		"CAP_FOWNER",
		"CAP_FSETID",
		"CAP_KILL",
		"CAP_MKNOD",
		"CAP_NET_BIND_SERVICE",
		"CAP_NET_RAW",
		"CAP_SETFCAP",
		"CAP_SETGID",
		"CAP_SETPCAP",
		"CAP_SETUID",
		"CAP_SYS_CHROOT",
	}
)

Functions

func Device 

func Device(device string) (src, dst, permissions string, err error)

Device parses device mapping string to a src, dest & permissions string Valid values for device looklike: 

'/dev/sdc"
'/dev/sdc:/dev/xvdc"
'/dev/sdc:/dev/xvdc:rwm"
'/dev/sdc:rm"

func IsValidDeviceMode 

func IsValidDeviceMode(mode string) bool

IsValidDeviceMode checks if the mode for device is valid or not. IsValid mode is a composition of r (read), w (write), and m (mknod).

func Path added in v0.12.0 

func Path() string

Types

type Config 

type Config struct {
	// Containers specify settings that configure how containers will run ont the system
	Containers ContainersConfig `toml:"containers"`
	// Engine specifies how the container engine based on Engine will run
	Engine EngineConfig `toml:"engine"`
	// Network section defines the configuration of CNI Plugins
	Network NetworkConfig `toml:"network"`
}

Config contains configuration options for container tools

func Default added in v0.2.0 

func Default() (*Config, error)

Default returns the default container config. Configuration files will be read in the following files: * /usr/share/containers/containers.conf * /etc/containers/containers.conf * $HOME/.config/containers/containers.conf # When run in rootless mode Fields in latter files override defaults set in previous files and the default config. None of these files are required, and not all fields need to be specified in each file, only the fields you want to override. The system defaults container config files can be overwritten using the CONTAINERS_CONF environment variable. This is usually done for testing.

func DefaultConfig 

func DefaultConfig() (*Config, error)

DefaultConfig defines the default values from containers.conf

func NewConfig added in v0.0.4 

func NewConfig(userConfigPath string) (*Config, error)

NewConfig creates a new Config. It starts with an empty config and, if specified, merges the config at `userConfigPath` path. Depending if we're running as root or rootless, we then merge the system configuration followed by merging the default config (hard-coded default in memory). Note that the OCI runtime is hard-set to `crun` if we're running on a system with cgroupv2v2. Other OCI runtimes are not yet supporting cgroupv2v2. This might change in the future.

func ReadCustomConfig added in v0.14.0 

func ReadCustomConfig() (*Config, error)

ReadCustomConfig reads the custom config and only generates a config based on it If the custom config file does not exists, function will return an empty config

func Reload added in v0.14.7 

func Reload() (*Config, error)

Reload clean the cached config and reloads the configuration from containers.conf files This function is meant to be used for long-running processes that need to reload potential changes made to the cached containers.conf files.

func (*Config) ActiveDestination added in v0.14.7 

func (c *Config) ActiveDestination() (uri, identity string, err error)

func (*Config) Capabilities added in v0.1.0 

func (c *Config) Capabilities(user string, addCapabilities, dropCapabilities []string) ([]string, error)

Capabilities returns the capabilities parses the Add and Drop capability list from the default capabiltiies for the container

func (*Config) CgroupNS added in v0.8.0 

func (c *Config) CgroupNS() string

CgroupNS returns the default Cgroup Namespace configuration to run containers with

func (*Config) Cgroups added in v0.9.1 

func (c *Config) Cgroups() string

Cgroups returns whether to containers with cgroup confinement

func (*Config) CheckCgroupsAndAdjustConfig added in v0.4.3 

func (c *Config) CheckCgroupsAndAdjustConfig()

CheckCgroupsAndAdjustConfig checks if we're running rootless with the systemd cgroup manager. In case the user session isn't available, we're switching the cgroup manager to cgroupfs. Note, this only applies to rootless.

func (*Config) DNSOptions added in v0.8.0 

func (c *Config) DNSOptions() []string

DNSOptions returns the default DNS options to add to resolv.conf in containers

func (*Config) DNSSearches added in v0.8.0 

func (c *Config) DNSSearches() []string

DNSSerches returns the default DNS searches to add to resolv.conf in containers

func (*Config) DNSServers added in v0.8.0 

func (c *Config) DNSServers() []string

DNSServers returns the default DNS servers to add to resolv.conf in containers

func (*Config) DetachKeys added in v0.8.0 

func (c *Config) DetachKeys() string

DetachKeys returns the default detach keys to detach from a container

func (*Config) Devices added in v0.8.0 

func (c *Config) Devices() []string

Devices returns the default additional devices for containers

func (*Config) Env added in v0.8.0 

func (c *Config) Env() []string

Env returns the default additional environment variables to add to containers

func (*Config) FindConmon added in v0.0.4 

func (c *Config) FindConmon() (string, error)

FindConmon iterates over (*Config).ConmonPath and returns the path to first (version) matching conmon binary. If non is found, we try to do a path lookup of "conmon".

func (*Config) GetDefaultEnv added in v0.0.7 

func (c *Config) GetDefaultEnv() []string

GetDefaultEnv returns the environment variables for the container. It will check the HTTPProxy and HostEnv booleans and add the appropriate environment variables to the container.

func (*Config) GetDefaultEnvEx added in v0.33.0 

func (c *Config) GetDefaultEnvEx(envHost, httpProxy bool) []string

GetDefaultEnvEx returns the environment variables for the container. It will check the HTTPProxy and HostEnv boolean parameters and return the appropriate environment variables for the container.

func (*Config) IPCNS added in v0.8.0 

func (c *Config) IPCNS() string

IPCNS returns the default IPC Namespace configuration to run containers with

func (*Config) InitPath added in v0.8.0 

func (c *Config) InitPath() string

InitPath returns the default init path to add to containers

func (*Config) LogDriver added in v0.33.2 

func (c *Config) LogDriver() string

LogDriver returns the logging driver to be used currently k8s-file or journald

func (*Config) MachineEnabled added in v0.37.1 

func (c *Config) MachineEnabled() bool

func (*Config) NetNS added in v0.8.0 

func (c *Config) NetNS() string

NetNS returns the default network namespace

func (*Config) PidNS added in v0.8.0 

func (c *Config) PidNS() string

PIDNS returns the default PID Namespace configuration to run containers with

func (*Config) PidsLimit added in v0.8.0 

func (c *Config) PidsLimit() int64

PidsLimit returns the default maximum number of pids to use in containers

func (*Config) SecurityOptions added in v0.8.0 

func (c *Config) SecurityOptions() []string

SecurityOptions returns the default security options

func (*Config) ShmSize added in v0.8.0 

func (c *Config) ShmSize() string

ShmSize returns the default size for temporary file systems to use in containers

func (*Config) Sysctls added in v0.8.0 

func (c *Config) Sysctls() []string

Sysctls returns the default sysctls

func (*Config) TZ added in v0.15.1 

func (c *Config) TZ() string

Tz returns the timezone in the container

func (*Config) UTSNS added in v0.8.0 

func (c *Config) UTSNS() string

UTSNS returns the default UTS Namespace configuration to run containers with

func (*Config) Ulimits added in v0.8.0 

func (c *Config) Ulimits() []string

Ulimits returns the default ulimits to use in containers

func (*Config) Umask added in v0.16.0 

func (c *Config) Umask() string

func (*Config) Validate 

func (c *Config) Validate() error

Validate is the main entry point for library configuration validation.

func (*Config) Volumes added in v0.8.0 

func (c *Config) Volumes() []string

Volumes returns the default additional volumes for containersvolumes

func (*Config) Write added in v0.14.0 

func (c *Config) Write() error

Write writes the configuration to the default file

type ContainersConfig 

type ContainersConfig struct {

	// Devices to add to all containers
	Devices []string `toml:"devices,omitempty"`

	// Volumes to add to all containers
	Volumes []string `toml:"volumes,omitempty"`

	// ApparmorProfile is the apparmor profile name which is used as the
	// default for the runtime.
	ApparmorProfile string `toml:"apparmor_profile,omitempty"`

	// Annotation to add to all containers
	Annotations []string `toml:"annotations,omitempty"`

	// Default way to create a cgroup namespace for the container
	CgroupNS string `toml:"cgroupns,omitempty"`

	// Default cgroup configuration
	Cgroups string `toml:"cgroups,omitempty"`

	// Capabilities to add to all containers.
	DefaultCapabilities []string `toml:"default_capabilities,omitempty"`

	// Sysctls to add to all containers.
	DefaultSysctls []string `toml:"default_sysctls,omitempty"`

	// DefaultUlimits specifies the default ulimits to apply to containers
	DefaultUlimits []string `toml:"default_ulimits,omitempty"`

	// DefaultMountsFile is the path to the default mounts file for testing
	DefaultMountsFile string `toml:"-"`

	// DNSServers set default DNS servers.
	DNSServers []string `toml:"dns_servers,omitempty"`

	// DNSOptions set default DNS options.
	DNSOptions []string `toml:"dns_options,omitempty"`

	// DNSSearches set default DNS search domains.
	DNSSearches []string `toml:"dns_searches,omitempty"`

	// EnableKeyring tells the container engines whether to create
	// a kernel keyring for use within the container
	EnableKeyring bool `toml:"keyring,omitempty"`

	// EnableLabeling tells the container engines whether to use MAC
	// Labeling to separate containers (SELinux)
	EnableLabeling bool `toml:"label,omitempty"`

	// Env is the environment variable list for container process.
	Env []string `toml:"env,omitempty"`

	// EnvHost Pass all host environment variables into the container.
	EnvHost bool `toml:"env_host,omitempty"`

	// HTTPProxy is the proxy environment variable list to apply to container process
	HTTPProxy bool `toml:"http_proxy,omitempty"`

	// Init tells container runtimes whether to run init inside the
	// container that forwards signals and reaps processes.
	Init bool `toml:"init,omitempty"`

	// InitPath is the path for init to run if the Init bool is enabled
	InitPath string `toml:"init_path,omitempty"`

	// IPCNS way to to create a ipc namespace for the container
	IPCNS string `toml:"ipcns,omitempty"`

	// LogDriver  for the container.  For example: k8s-file and journald
	LogDriver string `toml:"log_driver,omitempty"`

	// LogSizeMax is the maximum number of bytes after which the log file
	// will be truncated. It can be expressed as a human-friendly string
	// that is parsed to bytes.
	// Negative values indicate that the log file won't be truncated.
	LogSizeMax int64 `toml:"log_size_max,omitempty"`

	// NetNS indicates how to create a network namespace for the container
	NetNS string `toml:"netns,omitempty"`

	// NoHosts tells container engine whether to create its own /etc/hosts
	NoHosts bool `toml:"no_hosts,omitempty"`

	// PidsLimit is the number of processes each container is restricted to
	// by the cgroup process number controller.
	PidsLimit int64 `toml:"pids_limit,omitempty"`

	// PidNS indicates how to create a pid namespace for the container
	PidNS string `toml:"pidns,omitempty"`

	// SeccompProfile is the seccomp.json profile path which is used as the
	// default for the runtime.
	SeccompProfile string `toml:"seccomp_profile,omitempty"`

	// ShmSize holds the size of /dev/shm.
	ShmSize string `toml:"shm_size,omitempty"`

	// TZ sets the timezone inside the container
	TZ string `toml:"tz,omitempty"`

	// Umask is the umask inside the container.
	Umask string `toml:"umask,omitempty"`

	// UTSNS indicates how to create a UTS namespace for the container
	UTSNS string `toml:"utsns,omitempty"`

	// UserNS indicates how to create a User namespace for the container
	UserNS string `toml:"userns,omitempty"`

	// UserNSSize how many UIDs to allocate for automatically created UserNS
	UserNSSize int `toml:"userns_size,omitempty"`
}

ContainersConfig represents the "containers" TOML config table containers global options for containers tools

func (*ContainersConfig) Validate 

func (c *ContainersConfig) Validate() error

Validate is the main entry point for containers configuration validation It returns an `error` on validation failure, otherwise `nil`.

type Destination added in v0.14.7 

type Destination struct {
	// URI, required. Example: ssh://root@example.com:22/run/podman/podman.sock
	URI string `toml:"uri"`

	// Identity file with ssh key, optional
	Identity string `toml:"identity,omitempty"`
}

Destination represents destination for remote service

type EngineConfig added in v0.5.0 

type EngineConfig struct {
	// CgroupCheck indicates the configuration has been rewritten after an
	// upgrade to Fedora 31 to change the default OCI runtime for cgroupv2v2.
	CgroupCheck bool `toml:"cgroup_check,omitempty"`

	// CGroupManager is the CGroup Manager to use Valid values are "cgroupfs"
	// and "systemd".
	CgroupManager string `toml:"cgroup_manager,omitempty"`

	// ConmonEnvVars are environment variables to pass to the Conmon binary
	// when it is launched.
	ConmonEnvVars []string `toml:"conmon_env_vars,omitempty"`

	// ConmonPath is the path to the Conmon binary used for managing containers.
	// The first path pointing to a valid file will be used.
	ConmonPath []string `toml:"conmon_path,omitempty"`

	// DetachKeys is the sequence of keys used to detach a container.
	DetachKeys string `toml:"detach_keys,omitempty"`

	// EnablePortReservation determines whether engine 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,omitempty"`

	// Environment variables to be used when running the container engine (e.g., Podman, Buildah). For example "http_proxy=internal.proxy.company.com"
	Env []string `toml:"env,omitempty"`

	// EventsLogFilePath is where the events log is stored.
	EventsLogFilePath string `toml:"events_logfile_path,omitempty"`

	// EventsLogger determines where events should be logged.
	EventsLogger string `toml:"events_logger,omitempty"`

	// configuration files. When the same filename is present in in
	// multiple directories, the file in the directory listed last in
	// this slice takes precedence.
	HooksDir []string `toml:"hooks_dir,omitempty"`

	// ImageBuildFormat (DEPRECATED) indicates the default image format to
	// building container images. Should use ImageDefaultFormat
	ImageBuildFormat string `toml:"image_build_format,omitempty"`

	// ImageDefaultTransport is the default transport method used to fetch
	// images.
	ImageDefaultTransport string `toml:"image_default_transport,omitempty"`

	// ImageParallelCopies indicates the maximum number of image layers
	// to be copied simultaneously. If this is zero, container engines
	// will fall back to containers/image defaults.
	ImageParallelCopies uint `toml:"image_parallel_copies,omitempty"`

	// ImageDefaultFormat specified the manifest Type (oci, v2s2, or v2s1)
	// to use when pulling, pushing, building container images. By default
	// image pulled and pushed match the format of the source image.
	// Building/committing defaults to OCI.
	ImageDefaultFormat string `toml:"image_default_format,omitempty"`

	// InfraCommand is the command run to start up a pod infra container.
	InfraCommand string `toml:"infra_command,omitempty"`

	// InfraImage is the image a pod infra container will use to manage
	// namespaces.
	InfraImage string `toml:"infra_image,omitempty"`

	// InitPath is the path to the container-init binary.
	InitPath string `toml:"init_path,omitempty"`

	// LockType is the type of locking to use.
	LockType string `toml:"lock_type,omitempty"`

	// MachineEnabled indicates if Podman is running in a podman-machine VM
	MachineEnabled bool `toml:"machine_enabled,omitempty"`

	// MultiImageArchive - if true, the container engine allows for storing
	// archives (e.g., of the docker-archive transport) with multiple
	// images.  By default, Podman creates single-image archives.
	MultiImageArchive bool `toml:"multi_image_archive,omitempty"`

	// Namespace is the engine namespace to use. Namespaces are used to create
	// scopes to separate containers and pods in the state. When namespace is
	// set, engine will only view containers and pods in the same namespace. All
	// containers and pods created will default to the namespace set here. A
	// namespace of "", the empty string, is equivalent to no namespace, and all
	// containers and pods will be visible. The default namespace is "".
	Namespace string `toml:"namespace,omitempty"`

	// NetworkCmdPath is the path to the slirp4netns binary.
	NetworkCmdPath string `toml:"network_cmd_path,omitempty"`

	// NetworkCmdOptions is the default options to pass to the slirp4netns binary.
	// For example "allow_host_loopback=true"
	NetworkCmdOptions []string `toml:"network_cmd_options,omitempty"`

	// NoPivotRoot sets whether to set no-pivot-root in the OCI runtime.
	NoPivotRoot bool `toml:"no_pivot_root,omitempty"`

	// NumLocks is the number of locks to make available for containers and
	// pods.
	NumLocks uint32 `toml:"num_locks,omitempty"`

	// OCIRuntime is the OCI runtime to use.
	OCIRuntime string `toml:"runtime,omitempty"`

	// OCIRuntimes are the set of configured OCI runtimes (default is runc).
	OCIRuntimes map[string][]string `toml:"runtimes,omitempty"`

	// PullPolicy determines whether to pull image before creating or running a container
	// default is "missing"
	PullPolicy string `toml:"pull_policy,omitempty"`

	// Indicates whether the application should be running in Remote mode
	Remote bool `toml:"remote,omitempty"`

	// RemoteURI is deprecated, see ActiveService
	// RemoteURI containers connection information used to connect to remote system.
	RemoteURI string `toml:"remote_uri,omitempty"`

	// RemoteIdentity is deprecated, ServiceDestinations
	// RemoteIdentity key file for RemoteURI
	RemoteIdentity string `toml:"remote_identity,omitempty"`

	// ActiveService index to Destinations added v2.0.3
	ActiveService string `toml:"active_service,omitempty"`

	// Destinations mapped by service Names
	ServiceDestinations map[string]Destination `toml:"service_destinations,omitempty"`

	// RuntimePath is the path to OCI runtime binary for launching containers.
	// The first path pointing to a valid file will be used This is used only
	// when there are no OCIRuntime/OCIRuntimes defined.  It is used only to be
	// backward compatible with older versions of Podman.
	RuntimePath []string `toml:"runtime_path,omitempty"`

	// RuntimeSupportsJSON is the list of the OCI runtimes that support
	// --format=json.
	RuntimeSupportsJSON []string `toml:"runtime_supports_json,omitempty"`

	// RuntimeSupportsNoCgroups is a list of OCI runtimes that support
	// running containers without CGroups.
	RuntimeSupportsNoCgroups []string `toml:"runtime_supports_nocgroup,omitempty"`

	// RuntimeSupportsKVM is a list of OCI runtimes that support
	// KVM separation for containers.
	RuntimeSupportsKVM []string `toml:"runtime_supports_kvm,omitempty"`

	// SetOptions contains a subset of config options. It's used to indicate if
	// a given option has either been set by the user or by the parsed
	// configuration file. If not, the corresponding option might be
	// overwritten by values from the database. This behavior guarantees
	// backwards compat with older version of libpod and Podman.
	SetOptions

	// SignaturePolicyPath is the path to a signature policy to use for
	// validating images. If left empty, the containers/image default signature
	// policy will be used.
	SignaturePolicyPath string `toml:"-"`

	// SDNotify tells container engine to allow containers to notify the host systemd of
	// readiness using the SD_NOTIFY mechanism.
	SDNotify bool `toml:"-"`

	// StateType is the type of the backing state store. Avoid using multiple
	// values for this with the same containers/storage configuration on the
	// same system. Different state types do not interact, and each will see a
	// separate set of containers, which may cause conflicts in
	// containers/storage. As such this is not exposed via the config file.
	StateType RuntimeStateStore `toml:"-"`

	// StaticDir is the path to a persistent directory to store container
	// files.
	StaticDir string `toml:"static_dir,omitempty"`

	// StopTimeout is the number of seconds to wait for container to exit
	// before sending kill signal.
	StopTimeout uint `toml:"stop_timeout,omitempty"`

	// TmpDir is the path to a temporary directory to store per-boot container
	// files. Must be stored in a tmpfs.
	TmpDir string `toml:"tmp_dir,omitempty"`

	// VolumePath is the default location that named volumes will be created
	// under. This convention is followed by the default volume driver, but
	// may not be by other drivers.
	VolumePath string `toml:"volume_path,omitempty"`

	// VolumePlugins is a set of plugins that can be used as the backend for
	// Podman named volumes. Each volume is specified as a name (what Podman
	// will refer to the plugin as) mapped to a path, which must point to a
	// Unix socket that conforms to the Volume Plugin specification.
	VolumePlugins map[string]string `toml:"volume_plugins,omitempty"`
}

EngineConfig contains configuration options used to set up a engine runtime

func (*EngineConfig) Validate added in v0.5.0 

func (c *EngineConfig) Validate() error

Validate is the main entry point for Engine configuration validation It returns an `error` on validation failure, otherwise `nil`.

type NetworkConfig 

type NetworkConfig struct {
	// CNIPluginDirs is where CNI plugin binaries are stored.
	CNIPluginDirs []string `toml:"cni_plugin_dirs,omitempty"`

	// DefaultNetwork is the network name of the default CNI network
	// to attach pods to.
	DefaultNetwork string `toml:"default_network,omitempty"`

	// DefaultSubnet is the subnet to be used for the default CNI network.
	// If a network with the name given in DefaultNetwork is not present
	// then a new network using this subnet will be created.
	// Must be a valid IPv4 CIDR block.
	DefaultSubnet string `toml:"default_subnet,omitempty"`

	// NetworkConfigDir is where CNI network configuration files are stored.
	NetworkConfigDir string `toml:"network_config_dir,omitempty"`
}

NetworkConfig represents the "network" TOML config table

func (*NetworkConfig) Validate 

func (c *NetworkConfig) Validate() error

Validate is the main entry point for network configuration validation. The parameter `onExecution` specifies if the validation should include execution checks. It returns an `error` on validation failure, otherwise `nil`.

type PullPolicy added in v0.4.3 

type PullPolicy int

PullPolicy determines how and which images are being pulled from a container registry (i.e., docker transport only).

Supported string values are: * "always" <-> PullPolicyAlways * "missing" <-> PullPolicyMissing * "newer" <-> PullPolicyNewer * "never" <-> PullPolicyNever 

const (
	// Always pull the image.
	PullPolicyAlways PullPolicy = iota
	// Pull the image only if it could not be found in the local containers
	// storage.
	PullPolicyMissing
	// Never pull the image but use the one from the local containers
	// storage.
	PullPolicyNever
	// Pull if the image on the registry is new than the one in the local
	// containers storage.  An image is considered to be newer when the
	// digests are different.  Comparing the time stamps is prone to
	// errors.
	PullPolicyNewer

	// Ideally this should be the first `ioata` but backwards compatibility
	// prevents us from changing the values.
	PullPolicyUnsupported = -1
)

func ParsePullPolicy added in v0.38.0 

func ParsePullPolicy(s string) (PullPolicy, error)

ParsePullPolicy parses the string into a pull policy.

Supported string values are: * "always" <-> PullPolicyAlways * "missing" <-> PullPolicyMissing (also "ifnotpresent" and "") * "newer" <-> PullPolicyNewer (also "ifnewer") * "never" <-> PullPolicyNever

func ValidatePullPolicy deprecated added in v0.4.3 

func ValidatePullPolicy(s string) (PullPolicy, error)

Deprecated: please use `ParsePullPolicy` instead.

func (PullPolicy) String added in v0.38.0 

func (p PullPolicy) String() string

String converts a PullPolicy into a string.

Supported string values are: * "always" <-> PullPolicyAlways * "missing" <-> PullPolicyMissing * "newer" <-> PullPolicyNewer * "never" <-> PullPolicyNever

func (PullPolicy) Validate added in v0.38.0 

func (p PullPolicy) Validate() error

Validate returns if the pull policy is not supported.

type RuntimeStateStore added in v0.0.4 

type RuntimeStateStore int

RuntimeStateStore is a constant indicating which state store implementation should be used by engine 

const (
	// InvalidStateStore is an invalid state store
	InvalidStateStore RuntimeStateStore = iota
	// InMemoryStateStore is an in-memory state that will not persist data
	// on containers and pods between engine instances or after system
	// reboot
	InMemoryStateStore RuntimeStateStore = iota
	// SQLiteStateStore is a state backed by a SQLite database
	// It is presently disabled
	SQLiteStateStore RuntimeStateStore = iota
	// BoltDBStateStore is a state backed by a BoltDB database
	BoltDBStateStore RuntimeStateStore = iota
)

type SetOptions added in v0.0.4 

type SetOptions struct {
	// StorageConfigRunRootSet indicates if the RunRoot has been explicitly set
	// by the config or by the user. It's required to guarantee backwards
	// compatibility with older versions of libpod for which we must query the
	// database configuration. Not included in the on-disk config.
	StorageConfigRunRootSet bool `toml:"-"`

	// StorageConfigGraphRootSet indicates if the RunRoot has been explicitly
	// set by the config or by the user. It's required to guarantee backwards
	// compatibility with older versions of libpod for which we must query the
	// database configuration. Not included in the on-disk config.
	StorageConfigGraphRootSet bool `toml:"-"`

	// StorageConfigGraphDriverNameSet indicates if the GraphDriverName has been
	// explicitly set by the config or by the user. It's required to guarantee
	// backwards compatibility with older versions of libpod for which we must
	// query the database configuration. Not included in the on-disk config.
	StorageConfigGraphDriverNameSet bool `toml:"-"`

	// StaticDirSet indicates if the StaticDir has been explicitly set by the
	// config or by the user. It's required to guarantee backwards compatibility
	// with older versions of libpod for which we must query the database
	// configuration. Not included in the on-disk config.
	StaticDirSet bool `toml:"-"`

	// VolumePathSet indicates if the VolumePath has been explicitly set by the
	// config or by the user. It's required to guarantee backwards compatibility
	// with older versions of libpod for which we must query the database
	// configuration. Not included in the on-disk config.
	VolumePathSet bool `toml:"-"`

	// TmpDirSet indicates if the TmpDir has been explicitly set by the config
	// or by the user. It's required to guarantee backwards compatibility with
	// older versions of libpod for which we must query the database
	// configuration. Not included in the on-disk config.
	TmpDirSet bool `toml:"-"`
}

SetOptions contains a subset of options in a Config. It's used to indicate if a given option has either been set by the user or by a parsed engine configuration file. If not, the corresponding option might be overwritten by values from the database. This behavior guarantees backwards compat with older version of libpod and Podman.

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