From 9b03cacc87c4d59fc301c21ef73ddc301ec753fb Mon Sep 17 00:00:00 2001 From: baude Date: Sun, 9 Dec 2018 14:26:21 -0600 Subject: Add Play podman play kube adds the ability for the user to recreate pods and containers from a Kubernetes YAML file in libpod. Signed-off-by: baude --- libpod/kube.go | 34 +++++++++++++++++++++++----------- 1 file changed, 23 insertions(+), 11 deletions(-) (limited to 'libpod/kube.go') diff --git a/libpod/kube.go b/libpod/kube.go index c164ca0c5..f34805e39 100644 --- a/libpod/kube.go +++ b/libpod/kube.go @@ -30,7 +30,10 @@ func (c *Container) GenerateForKube() (*v1.Pod, error) { // one v1.Pod description func (p *Pod) GenerateForKube() (*v1.Pod, []v1.ServicePort, error) { // Generate the v1.Pod yaml description - var servicePorts []v1.ServicePort + var ( + servicePorts []v1.ServicePort + ports []v1.ContainerPort + ) allContainers, err := p.allContainers() if err != nil { @@ -51,13 +54,13 @@ func (p *Pod) GenerateForKube() (*v1.Pod, []v1.ServicePort, error) { return nil, servicePorts, err } - ports, err := ocicniPortMappingToContainerPort(infraContainer.config.PortMappings) + ports, err = ocicniPortMappingToContainerPort(infraContainer.config.PortMappings) if err != nil { return nil, servicePorts, err } servicePorts = containerPortsToServicePorts(ports) } - pod, err := p.podWithContainers(allContainers) + pod, err := p.podWithContainers(allContainers, ports) return pod, servicePorts, err } @@ -124,18 +127,27 @@ func containersToServicePorts(containers []v1.Container) []v1.ServicePort { return sps } -func (p *Pod) podWithContainers(containers []*Container) (*v1.Pod, error) { - var podContainers []v1.Container +func (p *Pod) podWithContainers(containers []*Container, ports []v1.ContainerPort) (*v1.Pod, error) { + var ( + podContainers []v1.Container + ) + first := true for _, ctr := range containers { - result, err := containerToV1Container(ctr) - if err != nil { - return nil, err - } if !ctr.IsInfra() { + result, err := containerToV1Container(ctr) + if err != nil { + return nil, err + } + // We add the original port declarations from the libpod infra container + // to the first kubernetes container description because otherwise we loose + // the original container/port bindings. + if first && len(ports) > 0 { + result.Ports = ports + first = false + } podContainers = append(podContainers, result) } } - return addContainersToPodObject(podContainers, p.Name()), nil } @@ -150,7 +162,7 @@ func addContainersToPodObject(containers []v1.Container, podName string) *v1.Pod labels["app"] = removeUnderscores(podName) om := v12.ObjectMeta{ // The name of the pod is container_name-libpod - Name: fmt.Sprintf("%s-libpod", removeUnderscores(podName)), + Name: fmt.Sprintf("%s", removeUnderscores(podName)), Labels: labels, // CreationTimestamp seems to be required, so adding it; in doing so, the timestamp // will reflect time this is run (not container create time) because the conversion -- cgit v1.2.3-54-g00ecf