143 lines
4.6 KiB
Go
143 lines
4.6 KiB
Go
package network
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import (
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"encoding/json"
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"net"
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"github.com/containers/storage/pkg/lockfile"
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)
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// TODO once the containers.conf file stuff is worked out, this should be modified
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// to honor defines in the containers.conf as well as overrides?
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const (
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// CNIConfigDir is the path where CNI config files exist
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CNIConfigDir = "/etc/cni/net.d"
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// CNIDeviceName is the default network device name and in
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// reality should have an int appended to it (cni-podman4)
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CNIDeviceName = "cni-podman"
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// DefaultPodmanDomainName is used for the dnsname plugin to define
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// a localized domain name for a created network
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DefaultPodmanDomainName = "dns.podman"
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// LockFileName is used for obtaining a lock and is appended
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// to libpod's tmpdir in practice
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LockFileName = "cni.lock"
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)
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// CNILock is for preventing name collision and
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// unpredictable results when doing some CNI operations.
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type CNILock struct {
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lockfile.Locker
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}
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// GetDefaultPodmanNetwork outputs the default network for podman
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func GetDefaultPodmanNetwork() (*net.IPNet, error) {
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_, n, err := net.ParseCIDR("10.88.1.0/24")
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return n, err
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}
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// CNIPlugins is a way of marshalling a CNI network configuration to disk
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type CNIPlugins interface {
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Bytes() ([]byte, error)
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}
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// HostLocalBridge describes a configuration for a bridge plugin
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// https://github.com/containernetworking/plugins/tree/master/plugins/main/bridge#network-configuration-reference
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type HostLocalBridge struct {
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PluginType string `json:"type"`
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BrName string `json:"bridge,omitempty"`
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IsGW bool `json:"isGateway"`
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IsDefaultGW bool `json:"isDefaultGateway,omitempty"`
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ForceAddress bool `json:"forceAddress,omitempty"`
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IPMasq bool `json:"ipMasq,omitempty"`
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MTU int `json:"mtu,omitempty"`
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HairpinMode bool `json:"hairpinMode,omitempty"`
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PromiscMode bool `json:"promiscMode,omitempty"`
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Vlan int `json:"vlan,omitempty"`
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IPAM IPAMHostLocalConf `json:"ipam"`
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}
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// Bytes outputs []byte
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func (h *HostLocalBridge) Bytes() ([]byte, error) {
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return json.MarshalIndent(h, "", "\t")
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}
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// IPAMHostLocalConf describes an IPAM configuration
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// https://github.com/containernetworking/plugins/tree/master/plugins/ipam/host-local#network-configuration-reference
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type IPAMHostLocalConf struct {
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PluginType string `json:"type"`
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Routes []IPAMRoute `json:"routes,omitempty"`
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ResolveConf string `json:"resolveConf,omitempty"`
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DataDir string `json:"dataDir,omitempty"`
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Ranges [][]IPAMLocalHostRangeConf `json:"ranges,omitempty"`
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}
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// IPAMLocalHostRangeConf describes the new style IPAM ranges
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type IPAMLocalHostRangeConf struct {
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Subnet string `json:"subnet"`
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RangeStart string `json:"rangeStart,omitempty"`
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RangeEnd string `json:"rangeEnd,omitempty"`
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Gateway string `json:"gateway,omitempty"`
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}
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// Bytes outputs the configuration as []byte
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func (i IPAMHostLocalConf) Bytes() ([]byte, error) {
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return json.MarshalIndent(i, "", "\t")
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}
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// IPAMRoute describes a route in an ipam config
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type IPAMRoute struct {
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Dest string `json:"dst"`
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}
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// PortMapConfig describes the default portmapping config
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type PortMapConfig struct {
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PluginType string `json:"type"`
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Capabilities map[string]bool `json:"capabilities"`
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}
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// Bytes outputs the configuration as []byte
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func (p PortMapConfig) Bytes() ([]byte, error) {
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return json.MarshalIndent(p, "", "\t")
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}
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// IPAMDHCP describes the ipamdhcp config
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type IPAMDHCP struct {
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DHCP string `json:"type"`
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}
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// MacVLANConfig describes the macvlan config
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type MacVLANConfig struct {
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PluginType string `json:"type"`
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Master string `json:"master"`
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IPAM IPAMDHCP `json:"ipam"`
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}
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// Bytes outputs the configuration as []byte
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func (p MacVLANConfig) Bytes() ([]byte, error) {
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return json.MarshalIndent(p, "", "\t")
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}
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// FirewallConfig describes the firewall plugin
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type FirewallConfig struct {
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PluginType string `json:"type"`
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Backend string `json:"backend"`
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}
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// Bytes outputs the configuration as []byte
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func (f FirewallConfig) Bytes() ([]byte, error) {
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return json.MarshalIndent(f, "", "\t")
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}
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// DNSNameConfig describes the dns container name resolution plugin config
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type DNSNameConfig struct {
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PluginType string `json:"type"`
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DomainName string `json:"domainName"`
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Capabilities map[string]bool `json:"capabilities"`
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}
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// Bytes outputs the configuration as []byte
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func (d DNSNameConfig) Bytes() ([]byte, error) {
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return json.MarshalIndent(d, "", "\t")
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}
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