diff options
Diffstat (limited to 'pkg/specgen/generate/kube/kube.go')
| -rw-r--r-- | pkg/specgen/generate/kube/kube.go | 83 |
1 files changed, 53 insertions, 30 deletions
diff --git a/pkg/specgen/generate/kube/kube.go b/pkg/specgen/generate/kube/kube.go index b5956029e..e5b09dcd8 100644 --- a/pkg/specgen/generate/kube/kube.go +++ b/pkg/specgen/generate/kube/kube.go @@ -47,30 +47,53 @@ func ToPodGen(ctx context.Context, podName string, podYAML *v1.PodTemplateSpec) return p, nil } -func ToSpecGen(ctx context.Context, containerYAML v1.Container, iid string, newImage *image.Image, volumes map[string]*KubeVolume, podID, podName, infraID string, configMaps []v1.ConfigMap, seccompPaths *KubeSeccompPaths, restartPolicy string, hostNet bool) (*specgen.SpecGenerator, error) { - s := specgen.NewSpecGenerator(iid, false) +type CtrSpecGenOptions struct { + // Container as read from the pod yaml + Container v1.Container + // Image available to use (pulled or found local) + Image *image.Image + // Volumes for all containers + Volumes map[string]*KubeVolume + // PodID of the parent pod + PodID string + // PodName of the parent pod + PodName string + // PodInfraID as the infrastructure container id + PodInfraID string + // ConfigMaps the configuration maps for environment variables + ConfigMaps []v1.ConfigMap + // SeccompPaths for finding the seccomp profile path + SeccompPaths *KubeSeccompPaths + // RestartPolicy defines the restart policy of the container + RestartPolicy string + // NetNSIsHost tells the container to use the host netns + NetNSIsHost bool +} + +func ToSpecGen(ctx context.Context, opts *CtrSpecGenOptions) (*specgen.SpecGenerator, error) { + s := specgen.NewSpecGenerator(opts.Container.Image, false) - // podName should be non-empty for Deployment objects to be able to create + // pod name should be non-empty for Deployment objects to be able to create // multiple pods having containers with unique names - if len(podName) < 1 { - return nil, errors.Errorf("kubeContainerToCreateConfig got empty podName") + if len(opts.PodName) < 1 { + return nil, errors.Errorf("got empty pod name on container creation when playing kube") } - s.Name = fmt.Sprintf("%s-%s", podName, containerYAML.Name) + s.Name = fmt.Sprintf("%s-%s", opts.PodName, opts.Container.Name) - s.Terminal = containerYAML.TTY + s.Terminal = opts.Container.TTY - s.Pod = podID + s.Pod = opts.PodID - setupSecurityContext(s, containerYAML) + setupSecurityContext(s, opts.Container) // Since we prefix the container name with pod name to work-around the uniqueness requirement, // the seccomp profile should reference the actual container name from the YAML // but apply to the containers with the prefixed name - s.SeccompProfilePath = seccompPaths.FindForContainer(containerYAML.Name) + s.SeccompProfilePath = opts.SeccompPaths.FindForContainer(opts.Container.Name) s.ResourceLimits = &spec.LinuxResources{} - milliCPU, err := quantityToInt64(containerYAML.Resources.Limits.Cpu()) + milliCPU, err := quantityToInt64(opts.Container.Resources.Limits.Cpu()) if err != nil { return nil, errors.Wrap(err, "Failed to set CPU quota") } @@ -82,12 +105,12 @@ func ToSpecGen(ctx context.Context, containerYAML v1.Container, iid string, newI } } - limit, err := quantityToInt64(containerYAML.Resources.Limits.Memory()) + limit, err := quantityToInt64(opts.Container.Resources.Limits.Memory()) if err != nil { return nil, errors.Wrap(err, "Failed to set memory limit") } - memoryRes, err := quantityToInt64(containerYAML.Resources.Requests.Memory()) + memoryRes, err := quantityToInt64(opts.Container.Resources.Requests.Memory()) if err != nil { return nil, errors.Wrap(err, "Failed to set memory reservation") } @@ -107,7 +130,7 @@ func ToSpecGen(ctx context.Context, containerYAML v1.Container, iid string, newI // TODO: We don't understand why specgen does not take of this, but // integration tests clearly pointed out that it was required. s.Command = []string{} - imageData, err := newImage.Inspect(ctx) + imageData, err := opts.Image.Inspect(ctx) if err != nil { return nil, err } @@ -134,26 +157,26 @@ func ToSpecGen(ctx context.Context, containerYAML v1.Container, iid string, newI } } // If only the yaml.Command is specified, set it as the entrypoint and drop the image Cmd - if len(containerYAML.Command) != 0 { - entrypoint = containerYAML.Command + if len(opts.Container.Command) != 0 { + entrypoint = opts.Container.Command cmd = []string{} } // Only override the cmd field if yaml.Args is specified // Keep the image entrypoint, or the yaml.command if specified - if len(containerYAML.Args) != 0 { - cmd = containerYAML.Args + if len(opts.Container.Args) != 0 { + cmd = opts.Container.Args } s.Command = append(entrypoint, cmd...) // FIXME, // we are currently ignoring imageData.Config.ExposedPorts - if containerYAML.WorkingDir != "" { - s.WorkDir = containerYAML.WorkingDir + if opts.Container.WorkingDir != "" { + s.WorkDir = opts.Container.WorkingDir } annotations := make(map[string]string) - if infraID != "" { - annotations[ann.SandboxID] = infraID + if opts.PodInfraID != "" { + annotations[ann.SandboxID] = opts.PodInfraID annotations[ann.ContainerType] = ann.ContainerTypeContainer } s.Annotations = annotations @@ -165,13 +188,13 @@ func ToSpecGen(ctx context.Context, containerYAML v1.Container, iid string, newI envs[keyval[0]] = keyval[1] } - for _, env := range containerYAML.Env { - value := envVarValue(env, configMaps) + for _, env := range opts.Container.Env { + value := envVarValue(env, opts.ConfigMaps) envs[env.Name] = value } - for _, envFrom := range containerYAML.EnvFrom { - cmEnvs := envVarsFromConfigMap(envFrom, configMaps) + for _, envFrom := range opts.Container.EnvFrom { + cmEnvs := envVarsFromConfigMap(envFrom, opts.ConfigMaps) for k, v := range cmEnvs { envs[k] = v @@ -179,8 +202,8 @@ func ToSpecGen(ctx context.Context, containerYAML v1.Container, iid string, newI } s.Env = envs - for _, volume := range containerYAML.VolumeMounts { - volumeSource, exists := volumes[volume.Name] + for _, volume := range opts.Container.VolumeMounts { + volumeSource, exists := opts.Volumes[volume.Name] if !exists { return nil, errors.Errorf("Volume mount %s specified for container but not configured in volumes", volume.Name) } @@ -212,9 +235,9 @@ func ToSpecGen(ctx context.Context, containerYAML v1.Container, iid string, newI } } - s.RestartPolicy = restartPolicy + s.RestartPolicy = opts.RestartPolicy - if hostNet { + if opts.NetNSIsHost { s.NetNS.NSMode = specgen.Host } |