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package specgen
import (
"net"
"github.com/containers/podman/v3/libpod/network/types"
spec "github.com/opencontainers/runtime-spec/specs-go"
)
// PodBasicConfig contains basic configuration options for pods.
type PodBasicConfig struct {
// Name is the name of the pod.
// If not provided, a name will be generated when the pod is created.
// Optional.
Name string `json:"name,omitempty"`
// Hostname is the pod's hostname. If not set, the name of the pod will
// be used (if a name was not provided here, the name auto-generated for
// the pod will be used). This will be used by the infra container and
// all containers in the pod as long as the UTS namespace is shared.
// Optional.
Hostname string `json:"hostname,omitempty"`
// Labels are key-value pairs that are used to add metadata to pods.
// Optional.
Labels map[string]string `json:"labels,omitempty"`
// NoInfra tells the pod not to create an infra container. If this is
// done, many networking-related options will become unavailable.
// Conflicts with setting any options in PodNetworkConfig, and the
// InfraCommand and InfraImages in this struct.
// Optional.
NoInfra bool `json:"no_infra,omitempty"`
// InfraConmonPidFile is a custom path to store the infra container's
// conmon PID.
InfraConmonPidFile string `json:"infra_conmon_pid_file,omitempty"`
// InfraCommand sets the command that will be used to start the infra
// container.
// If not set, the default set in the Libpod configuration file will be
// used.
// Conflicts with NoInfra=true.
// Optional.
InfraCommand []string `json:"infra_command,omitempty"`
// InfraImage is the image that will be used for the infra container.
// If not set, the default set in the Libpod configuration file will be
// used.
// Conflicts with NoInfra=true.
// Optional.
InfraImage string `json:"infra_image,omitempty"`
// InfraName is the name that will be used for the infra container.
// If not set, the default set in the Libpod configuration file will be
// used.
// Conflicts with NoInfra=true.
// Optional.
InfraName string `json:"infra_name,omitempty"`
// SharedNamespaces instructs the pod to share a set of namespaces.
// Shared namespaces will be joined (by default) by every container
// which joins the pod.
// If not set and NoInfra is false, the pod will set a default set of
// namespaces to share.
// Conflicts with NoInfra=true.
// Optional.
SharedNamespaces []string `json:"shared_namespaces,omitempty"`
// PodCreateCommand is the command used to create this pod.
// This will be shown in the output of Inspect() on the pod, and may
// also be used by some tools that wish to recreate the pod
// (e.g. `podman generate systemd --new`).
// Optional.
PodCreateCommand []string `json:"pod_create_command,omitempty"`
// Pid sets the process id namespace of the pod
// Optional (defaults to private if unset). This sets the PID namespace of the infra container
// This configuration will then be shared with the entire pod if PID namespace sharing is enabled via --share
Pid Namespace `json:"pidns,omitempty"`
// Userns is used to indicate which kind of Usernamespace to enter.
// Any containers created within the pod will inherit the pod's userns settings.
// Optional
Userns Namespace `json:"userns,omitempty"`
// Devices contains user specified Devices to be added to the Pod
Devices []string `json:"pod_devices,omitempty"`
}
// PodNetworkConfig contains networking configuration for a pod.
type PodNetworkConfig struct {
// NetNS is the configuration to use for the infra container's network
// namespace. This network will, by default, be shared with all
// containers in the pod.
// Cannot be set to FromContainer and FromPod.
// Setting this to anything except default conflicts with NoInfra=true.
// Defaults to Bridge as root and Slirp as rootless.
// Mandatory.
NetNS Namespace `json:"netns,omitempty"`
// StaticIP sets a static IP for the infra container. As the infra
// container's network is used for the entire pod by default, this will
// thus be a static IP for the whole pod.
// Only available if NetNS is set to Bridge (the default for root).
// As such, conflicts with NoInfra=true by proxy.
// Optional.
StaticIP *net.IP `json:"static_ip,omitempty"`
// StaticMAC sets a static MAC for the infra container. As the infra
// container's network is used for the entire pod by default, this will
// thus be a static MAC for the entire pod.
// Only available if NetNS is set to Bridge (the default for root).
// As such, conflicts with NoInfra=true by proxy.
// Optional.
StaticMAC *net.HardwareAddr `json:"static_mac,omitempty"`
// PortMappings is a set of ports to map into the infra container.
// As, by default, containers share their network with the infra
// container, this will forward the ports to the entire pod.
// Only available if NetNS is set to Bridge or Slirp.
// Optional.
PortMappings []types.PortMapping `json:"portmappings,omitempty"`
// CNINetworks is a list of CNI networks that the infra container will
// join. As, by default, containers share their network with the infra
// container, these networks will effectively be joined by the
// entire pod.
// Only available when NetNS is set to Bridge, the default for root.
// Optional.
CNINetworks []string `json:"cni_networks,omitempty"`
// NoManageResolvConf indicates that /etc/resolv.conf should not be
// managed by the pod. Instead, each container will create and manage a
// separate resolv.conf as if they had not joined a pod.
// Conflicts with NoInfra=true and DNSServer, DNSSearch, DNSOption.
// Optional.
NoManageResolvConf bool `json:"no_manage_resolv_conf,omitempty"`
// DNSServer is a set of DNS servers that will be used in the infra
// container's resolv.conf, which will, by default, be shared with all
// containers in the pod.
// If not provided, the host's DNS servers will be used, unless the only
// server set is a localhost address. As the container cannot connect to
// the host's localhost, a default server will instead be set.
// Conflicts with NoInfra=true.
// Optional.
DNSServer []net.IP `json:"dns_server,omitempty"`
// DNSSearch is a set of DNS search domains that will be used in the
// infra container's resolv.conf, which will, by default, be shared with
// all containers in the pod.
// If not provided, DNS search domains from the host's resolv.conf will
// be used.
// Conflicts with NoInfra=true.
// Optional.
DNSSearch []string `json:"dns_search,omitempty"`
// DNSOption is a set of DNS options that will be used in the infra
// container's resolv.conf, which will, by default, be shared with all
// containers in the pod.
// Conflicts with NoInfra=true.
// Optional.
DNSOption []string `json:"dns_option,omitempty"`
// NoManageHosts indicates that /etc/hosts should not be managed by the
// pod. Instead, each container will create a separate /etc/hosts as
// they would if not in a pod.
// Conflicts with HostAdd.
NoManageHosts bool `json:"no_manage_hosts,omitempty"`
// HostAdd is a set of hosts that will be added to the infra container's
// /etc/hosts that will, by default, be shared with all containers in
// the pod.
// Conflicts with NoInfra=true and NoManageHosts.
// Optional.
HostAdd []string `json:"hostadd,omitempty"`
// NetworkOptions are additional options for each network
// Optional.
NetworkOptions map[string][]string `json:"network_options,omitempty"`
}
// PodStorageConfig contains all of the storage related options for the pod and its infra container.
type PodStorageConfig struct {
// Mounts are mounts that will be added to the pod.
// These will supersede Image Volumes and VolumesFrom volumes where
// there are conflicts.
// Optional.
Mounts []spec.Mount `json:"mounts,omitempty"`
// Volumes are named volumes that will be added to the pod.
// These will supersede Image Volumes and VolumesFrom volumes where
// there are conflicts.
// Optional.
Volumes []*NamedVolume `json:"volumes,omitempty"`
// Overlay volumes are named volumes that will be added to the pod.
// Optional.
OverlayVolumes []*OverlayVolume `json:"overlay_volumes,omitempty"`
// Image volumes bind-mount a container-image mount into the pod's infra container.
// Optional.
ImageVolumes []*ImageVolume `json:"image_volumes,omitempty"`
// VolumesFrom is a set of containers whose volumes will be added to
// this pod. The name or ID of the container must be provided, and
// may optionally be followed by a : and then one or more
// comma-separated options. Valid options are 'ro', 'rw', and 'z'.
// Options will be used for all volumes sourced from the container.
VolumesFrom []string `json:"volumes_from,omitempty"`
}
// PodCgroupConfig contains configuration options about a pod's cgroups.
// This will be expanded in future updates to pods.
type PodCgroupConfig struct {
// CgroupParent is the parent for the CGroup that the pod will create.
// This pod cgroup will, in turn, be the default cgroup parent for all
// containers in the pod.
// Optional.
CgroupParent string `json:"cgroup_parent,omitempty"`
}
// PodSpecGenerator describes options to create a pod
// swagger:model PodSpecGenerator
type PodSpecGenerator struct {
PodBasicConfig
PodNetworkConfig
PodCgroupConfig
PodResourceConfig
PodStorageConfig
InfraContainerSpec *SpecGenerator `json:"-"`
}
type PodResourceConfig struct {
// ResourceLimits contains linux specific CPU data for the pod
ResourceLimits *spec.LinuxResources `json:"resource_limits,omitempty"`
// CPU period of the cpuset, determined by --cpus
CPUPeriod uint64 `json:"cpu_period,omitempty"`
// CPU quota of the cpuset, determined by --cpus
CPUQuota int64 `json:"cpu_quota,omitempty"`
// ThrottleReadBpsDevice contains the rate at which the devices in the pod can be read from/accessed
ThrottleReadBpsDevice map[string]spec.LinuxThrottleDevice `json:"throttleReadBpsDevice,omitempty"`
}
// NewPodSpecGenerator creates a new pod spec
func NewPodSpecGenerator() *PodSpecGenerator {
return &PodSpecGenerator{}
}
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