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-rw-r--r--pkg/domain/entities/play.go14
-rw-r--r--pkg/domain/infra/abi/play.go102
2 files changed, 94 insertions, 22 deletions
diff --git a/pkg/domain/entities/play.go b/pkg/domain/entities/play.go
index 4f485cbee..0823bc64e 100644
--- a/pkg/domain/entities/play.go
+++ b/pkg/domain/entities/play.go
@@ -26,12 +26,18 @@ type PlayKubeOptions struct {
SeccompProfileRoot string
}
-// PlayKubeReport contains the results of running play kube.
-type PlayKubeReport struct {
- // Pod - the ID of the created pod.
- Pod string
+// PlayKubePod represents a single pod and associated containers created by play kube
+type PlayKubePod struct {
+ // ID - ID of the pod created as a result of play kube.
+ ID string
// Containers - the IDs of the containers running in the created pod.
Containers []string
// Logs - non-fatal erros and log messages while processing.
Logs []string
}
+
+// PlayKubeReport contains the results of running play kube.
+type PlayKubeReport struct {
+ // Pods - pods created by play kube.
+ Pods []PlayKubePod
+}
diff --git a/pkg/domain/infra/abi/play.go b/pkg/domain/infra/abi/play.go
index 932974aba..f5b93c51b 100644
--- a/pkg/domain/infra/abi/play.go
+++ b/pkg/domain/infra/abi/play.go
@@ -26,6 +26,7 @@ import (
"github.com/ghodss/yaml"
"github.com/pkg/errors"
"github.com/sirupsen/logrus"
+ v1apps "k8s.io/api/apps/v1"
v1 "k8s.io/api/core/v1"
)
@@ -38,13 +39,7 @@ const (
func (ic *ContainerEngine) PlayKube(ctx context.Context, path string, options entities.PlayKubeOptions) (*entities.PlayKubeReport, error) {
var (
- containers []*libpod.Container
- pod *libpod.Pod
- podOptions []libpod.PodCreateOption
- podYAML v1.Pod
- registryCreds *types.DockerAuthConfig
- writer io.Writer
- report entities.PlayKubeReport
+ kubeObject v1.ObjectReference
)
content, err := ioutil.ReadFile(path)
@@ -52,25 +47,84 @@ func (ic *ContainerEngine) PlayKube(ctx context.Context, path string, options en
return nil, err
}
- if err := yaml.Unmarshal(content, &podYAML); err != nil {
+ if err := yaml.Unmarshal(content, &kubeObject); err != nil {
return nil, errors.Wrapf(err, "unable to read %q as YAML", path)
}
// NOTE: pkg/bindings/play is also parsing the file.
// A pkg/kube would be nice to refactor and abstract
// parts of the K8s-related code.
- if podYAML.Kind != "Pod" {
- return nil, errors.Errorf("invalid YAML kind: %q. Pod is the only supported Kubernetes YAML kind", podYAML.Kind)
+ switch kubeObject.Kind {
+ case "Pod":
+ var podYAML v1.Pod
+ var podTemplateSpec v1.PodTemplateSpec
+ if err := yaml.Unmarshal(content, &podYAML); err != nil {
+ return nil, errors.Wrapf(err, "unable to read YAML %q as Kube Pod", path)
+ }
+ podTemplateSpec.ObjectMeta = podYAML.ObjectMeta
+ podTemplateSpec.Spec = podYAML.Spec
+ return ic.playKubePod(ctx, podTemplateSpec.ObjectMeta.Name, &podTemplateSpec, options)
+ case "Deployment":
+ var deploymentYAML v1apps.Deployment
+ if err := yaml.Unmarshal(content, &deploymentYAML); err != nil {
+ return nil, errors.Wrapf(err, "unable to read YAML %q as Kube Deployment", path)
+ }
+ return ic.playKubeDeployment(ctx, &deploymentYAML, options)
+ default:
+ return nil, errors.Errorf("invalid YAML kind: %q. [Pod|Deployment] are the only supported Kubernetes Kinds", kubeObject.Kind)
+ }
+
+}
+
+func (ic *ContainerEngine) playKubeDeployment(ctx context.Context, deploymentYAML *v1apps.Deployment, options entities.PlayKubeOptions) (*entities.PlayKubeReport, error) {
+ var (
+ deploymentName string
+ podSpec v1.PodTemplateSpec
+ numReplicas int32
+ i int32
+ report entities.PlayKubeReport
+ )
+
+ deploymentName = deploymentYAML.ObjectMeta.Name
+ if deploymentName == "" {
+ return nil, errors.Errorf("Deployment does not have a name")
}
+ numReplicas = 1
+ if deploymentYAML.Spec.Replicas != nil {
+ numReplicas = *deploymentYAML.Spec.Replicas
+ }
+ podSpec = deploymentYAML.Spec.Template
+
+ // create "replicas" number of pods
+ for i = 0; i < numReplicas; i++ {
+ podName := fmt.Sprintf("%s-pod-%d", deploymentName, i)
+ podReport, err := ic.playKubePod(ctx, podName, &podSpec, options)
+ if err != nil {
+ return nil, errors.Wrapf(err, "Error encountered while bringing up pod %s", podName)
+ }
+ report.Pods = append(report.Pods, podReport.Pods...)
+ }
+ return &report, nil
+}
+
+func (ic *ContainerEngine) playKubePod(ctx context.Context, podName string, podYAML *v1.PodTemplateSpec, options entities.PlayKubeOptions) (*entities.PlayKubeReport, error) {
+ var (
+ containers []*libpod.Container
+ pod *libpod.Pod
+ podOptions []libpod.PodCreateOption
+ registryCreds *types.DockerAuthConfig
+ writer io.Writer
+ playKubePod entities.PlayKubePod
+ report entities.PlayKubeReport
+ )
// check for name collision between pod and container
- podName := podYAML.ObjectMeta.Name
if podName == "" {
return nil, errors.Errorf("pod does not have a name")
}
for _, n := range podYAML.Spec.Containers {
if n.Name == podName {
- report.Logs = append(report.Logs,
+ playKubePod.Logs = append(playKubePod.Logs,
fmt.Sprintf("a container exists with the same name (%q) as the pod in your YAML file; changing pod name to %s_pod\n", podName, podName))
podName = fmt.Sprintf("%s_pod", podName)
}
@@ -239,7 +293,7 @@ func (ic *ContainerEngine) PlayKube(ctx context.Context, path string, options en
if err != nil {
return nil, err
}
- conf, err := kubeContainerToCreateConfig(ctx, container, ic.Libpod, newImage, namespaces, volumes, pod.ID(), podInfraID, seccompPaths)
+ conf, err := kubeContainerToCreateConfig(ctx, container, ic.Libpod, newImage, namespaces, volumes, pod.ID(), podName, podInfraID, seccompPaths)
if err != nil {
return nil, err
}
@@ -259,11 +313,13 @@ func (ic *ContainerEngine) PlayKube(ctx context.Context, path string, options en
}
}
- report.Pod = pod.ID()
+ playKubePod.ID = pod.ID()
for _, ctr := range containers {
- report.Containers = append(report.Containers, ctr.ID())
+ playKubePod.Containers = append(playKubePod.Containers, ctr.ID())
}
+ report.Pods = append(report.Pods, playKubePod)
+
return &report, nil
}
@@ -351,7 +407,7 @@ func setupSecurityContext(securityConfig *createconfig.SecurityConfig, userConfi
}
// kubeContainerToCreateConfig takes a v1.Container and returns a createconfig describing a container
-func kubeContainerToCreateConfig(ctx context.Context, containerYAML v1.Container, runtime *libpod.Runtime, newImage *image.Image, namespaces map[string]string, volumes map[string]string, podID, infraID string, seccompPaths *kubeSeccompPaths) (*createconfig.CreateConfig, error) {
+func kubeContainerToCreateConfig(ctx context.Context, containerYAML v1.Container, runtime *libpod.Runtime, newImage *image.Image, namespaces map[string]string, volumes map[string]string, podID, podName, infraID string, seccompPaths *kubeSeccompPaths) (*createconfig.CreateConfig, error) {
var (
containerConfig createconfig.CreateConfig
pidConfig createconfig.PidConfig
@@ -368,7 +424,14 @@ func kubeContainerToCreateConfig(ctx context.Context, containerYAML v1.Container
containerConfig.Image = containerYAML.Image
containerConfig.ImageID = newImage.ID()
- containerConfig.Name = containerYAML.Name
+
+ // podName should be non-empty for Deployment objects to be able to create
+ // multiple pods having containers with unique names
+ if podName == "" {
+ return nil, errors.Errorf("kubeContainerToCreateConfig got empty podName")
+ }
+ containerConfig.Name = fmt.Sprintf("%s-%s", podName, containerYAML.Name)
+
containerConfig.Tty = containerYAML.TTY
containerConfig.Pod = podID
@@ -382,7 +445,10 @@ func kubeContainerToCreateConfig(ctx context.Context, containerYAML v1.Container
setupSecurityContext(&securityConfig, &userConfig, containerYAML)
- securityConfig.SeccompProfilePath = seccompPaths.findForContainer(containerConfig.Name)
+ // Since we prefix the container name with pod name to work-around the uniqueness requirement,
+ // the seccom profile should reference the actual container name from the YAML
+ // but apply to the containers with the prefixed name
+ securityConfig.SeccompProfilePath = seccompPaths.findForContainer(containerYAML.Name)
containerConfig.Command = []string{}
if imageData != nil && imageData.Config != nil {
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2024-12-26 05:05:49 +0000