diff options
| -rw-r--r-- | libpod/options.go | 153 | ||||
| -rw-r--r-- | libpod/pod.go | 14 | ||||
| -rw-r--r-- | libpod/runtime_pod_infra_linux.go | 28 |
3 files changed, 191 insertions, 4 deletions
diff --git a/libpod/options.go b/libpod/options.go index 923e7292c..4957f822d 100644 --- a/libpod/options.go +++ b/libpod/options.go @@ -1784,3 +1784,156 @@ func WithInfraContainerPorts(bindings []ocicni.PortMapping) PodCreateOption { return nil } } + +// WithPodStaticIP sets a static IP for the pod. +func WithPodStaticIP(ip net.IP) PodCreateOption { + return func(pod *Pod) error { + if pod.valid { + return define.ErrPodFinalized + } + + if len(pod.config.InfraContainer.Networks) > 1 { + return errors.Wrapf(define.ErrInvalidArg, "cannot set a static IP if joining more than 1 CNI network") + } + + pod.config.InfraContainer.StaticIP = ip + + return nil + } +} + +// WithPodStaticMAC sets a static MAC address for the pod. +func WithPodStaticMAC(mac net.HardwareAddr) PodCreateOption { + return func(pod *Pod) error { + if pod.valid { + return define.ErrPodFinalized + } + + if len(pod.config.InfraContainer.Networks) > 1 { + return errors.Wrapf(define.ErrInvalidArg, "cannot set a static MAC if joining more than 1 CNI network") + } + + pod.config.InfraContainer.StaticMAC = mac + + return nil + } +} + +// WithPodUseImageResolvConf sets a pod to use an image's resolv.conf and not +// create its own. +func WithPodUseImageResolvConf() PodCreateOption { + return func(pod *Pod) error { + if pod.valid { + return define.ErrPodFinalized + } + + if len(pod.config.InfraContainer.DNSServer) != 0 || + len(pod.config.InfraContainer.DNSSearch) != 0 || + len(pod.config.InfraContainer.DNSOption) != 0 { + return errors.Wrapf(define.ErrInvalidArg, "requested use of image resolv.conf conflicts with already-configured DNS settings") + } + + pod.config.InfraContainer.UseImageResolvConf = true + + return nil + } +} + +// WithPodDNS sets the DNS Servers for a pod. +func WithPodDNS(dnsServer []string) PodCreateOption { + return func(pod *Pod) error { + if pod.valid { + return define.ErrPodFinalized + } + + if pod.config.InfraContainer.UseImageResolvConf { + return errors.Wrapf(define.ErrInvalidArg, "cannot add DNS servers if pod will not create /etc/resolv.conf") + } + + pod.config.InfraContainer.DNSServer = dnsServer + + return nil + } +} + +// WithPodDNSSearch sets the DNS Search domains for a pod. +func WithPodDNSSearch(dnsSearch []string) PodCreateOption { + return func(pod *Pod) error { + if pod.valid { + return define.ErrPodFinalized + } + + if pod.config.InfraContainer.UseImageResolvConf { + return errors.Wrapf(define.ErrInvalidArg, "cannot add DNS search domains if pod will not create /etc/resolv.conf") + } + + pod.config.InfraContainer.DNSSearch = dnsSearch + + return nil + } +} + +// WithPodDNSOption sets DNS Options for a pod. +func WithPodDNSOption(dnsOption []string) PodCreateOption { + return func(pod *Pod) error { + if pod.valid { + return define.ErrPodFinalized + } + + if pod.config.InfraContainer.UseImageResolvConf { + return errors.Wrapf(define.ErrInvalidArg, "cannot add DNS options if pod will not create /etc/resolv.conf") + } + + pod.config.InfraContainer.DNSOption = dnsOption + + return nil + } +} + +// WithPodUseImageHosts tells the pod not to create /etc/hosts and instead to +// use the one provided by the image. +func WithPodUseImageHosts() PodCreateOption { + return func(pod *Pod) error { + if pod.valid { + return define.ErrPodFinalized + } + + if len(pod.config.InfraContainer.HostAdd) != 0 { + return errors.Wrapf(define.ErrInvalidArg, "not creating /etc/hosts conflicts with adding to the hosts file") + } + + pod.config.InfraContainer.UseImageHosts = true + + return nil + } +} + +// WithPodHosts adds additional entries to the pod's /etc/hosts +func WithPodHosts(hosts []string) PodCreateOption { + return func(pod *Pod) error { + if pod.valid { + return define.ErrPodFinalized + } + + if pod.config.InfraContainer.UseImageHosts { + return errors.Wrapf(define.ErrInvalidArg, "cannot add to /etc/hosts if container is using image hosts") + } + + pod.config.InfraContainer.HostAdd = hosts + + return nil + } +} + +// WithPodNetworks sets additional CNI networks for the pod to join. +func WithPodNetworks(networks []string) PodCreateOption { + return func(pod *Pod) error { + if pod.valid { + return define.ErrPodFinalized + } + + pod.config.InfraContainer.Networks = networks + + return nil + } +} diff --git a/libpod/pod.go b/libpod/pod.go index 3b9bb9c60..4f85caf08 100644 --- a/libpod/pod.go +++ b/libpod/pod.go @@ -1,6 +1,7 @@ package libpod import ( + "net" "time" "github.com/containers/libpod/libpod/define" @@ -97,8 +98,17 @@ type PodContainerInfo struct { // InfraContainerConfig is the configuration for the pod's infra container type InfraContainerConfig struct { - HasInfraContainer bool `json:"makeInfraContainer"` - PortBindings []ocicni.PortMapping `json:"infraPortBindings"` + HasInfraContainer bool `json:"makeInfraContainer"` + PortBindings []ocicni.PortMapping `json:"infraPortBindings"` + StaticIP net.IP `json:"staticIP,omitempty"` + StaticMAC net.HardwareAddr `json:"staticMAC,omitempty"` + UseImageResolvConf bool `json:"useImageResolvConf,omitempty"` + DNSServer []string `json:"dnsServer,omitempty"` + DNSSearch []string `json:"dnsSearch,omitempty"` + DNSOption []string `json:"dnsOption,omitempty"` + UseImageHosts bool `json:"useImageHosts,omitempty"` + HostAdd []string `json:"hostsAdd,omitempty"` + Networks []string `json:"networks,omitempty"` } // ID retrieves the pod's ID diff --git a/libpod/runtime_pod_infra_linux.go b/libpod/runtime_pod_infra_linux.go index 6a27c2800..1b1421ca8 100644 --- a/libpod/runtime_pod_infra_linux.go +++ b/libpod/runtime_pod_infra_linux.go @@ -94,14 +94,38 @@ func (r *Runtime) makeInfraContainer(ctx context.Context, p *Pod, imgName, imgID options = append(options, withIsInfra()) // Since user namespace sharing is not implemented, we only need to check if it's rootless - networks := make([]string, 0) netmode := "bridge" if isRootless { netmode = "slirp4netns" } // PostConfigureNetNS should not be set since user namespace sharing is not implemented // and rootless networking no longer supports post configuration setup - options = append(options, WithNetNS(p.config.InfraContainer.PortBindings, false, netmode, networks)) + options = append(options, WithNetNS(p.config.InfraContainer.PortBindings, false, netmode, p.config.InfraContainer.Networks)) + + if p.config.InfraContainer.StaticIP != nil { + options = append(options, WithStaticIP(p.config.InfraContainer.StaticIP)) + } + if p.config.InfraContainer.StaticMAC != nil { + options = append(options, WithStaticMAC(p.config.InfraContainer.StaticMAC)) + } + if p.config.InfraContainer.UseImageResolvConf { + options = append(options, WithUseImageResolvConf()) + } + if len(p.config.InfraContainer.DNSServer) > 0 { + options = append(options, WithDNS(p.config.InfraContainer.DNSServer)) + } + if len(p.config.InfraContainer.DNSSearch) > 0 { + options = append(options, WithDNSSearch(p.config.InfraContainer.DNSSearch)) + } + if len(p.config.InfraContainer.DNSOption) > 0 { + options = append(options, WithDNSOption(p.config.InfraContainer.DNSOption)) + } + if p.config.InfraContainer.UseImageHosts { + options = append(options, WithUseImageHosts()) + } + if len(p.config.InfraContainer.HostAdd) > 0 { + options = append(options, WithHosts(p.config.InfraContainer.HostAdd)) + } return r.newContainer(ctx, g.Config, options...) } |