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authortheunrealgeek <theunrealgeek@gmail.com>2020-05-17 00:37:58 -0700
committertheunrealgeek <theunrealgeek@gmail.com>2020-06-02 20:33:16 -0700
commitce7a9f03146da33007656ded64be3148d6ec8d77 (patch)
tree6d240193f465a9482cfa71b51b80c753088931f5 /pkg/domain/infra/abi/play.go
parent95ea39edf34e4de4450c1674721ab02a7cf6a327 (diff)
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supporting k8s Deployment objects
Signed-off-by: Aditya Kamath <theunrealgeek@gmail.com>
Diffstat (limited to 'pkg/domain/infra/abi/play.go')
-rw-r--r--pkg/domain/infra/abi/play.go88
1 files changed, 74 insertions, 14 deletions
diff --git a/pkg/domain/infra/abi/play.go b/pkg/domain/infra/abi/play.go
index 6d0919d2b..772cea5fd 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)
@@ -52,19 +47,79 @@ 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...)
+ report.Containers = append(report.Containers, podReport.Containers...)
+ report.Logs = append(report.Logs, podReport.Logs...)
+ }
+ 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
+ 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")
}
@@ -239,7 +294,7 @@ 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
}
@@ -259,7 +314,7 @@ func (ic *ContainerEngine) PlayKube(ctx context.Context, path string, options en
}
}
- report.Pod = pod.ID()
+ report.Pods = append(report.Pods, pod.ID())
for _, ctr := range containers {
report.Containers = append(report.Containers, ctr.ID())
}
@@ -351,7 +406,7 @@ 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
@@ -369,6 +424,11 @@ func kubeContainerToCreateConfig(ctx context.Context, containerYAML v1.Container
containerConfig.Image = containerYAML.Image
containerConfig.ImageID = newImage.ID()
containerConfig.Name = containerYAML.Name
+
+ if podName != "" {
+ containerConfig.Name = fmt.Sprintf("%s-%s", podName, containerYAML.Name)
+ }
+
containerConfig.Tty = containerYAML.TTY
containerConfig.Pod = podID