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* Add --imagePullSecret flag to support agent images in private registries * Add Ruby support Co-authored-by: Ashley Lowde <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,17 @@ | ||
| FROM golang:1.14-buster as agentbuild | ||
| WORKDIR /go/src/github.com/VerizonMedia/kubectl-flame | ||
| ADD . /go/src/github.com/VerizonMedia/kubectl-flame | ||
| RUN go get -d -v ./... | ||
| RUN cd agent && go build -o /go/bin/agent | ||
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| FROM rust:1.50 AS rbspybuild | ||
| WORKDIR / | ||
| RUN git clone https://github.com/rbspy/rbspy | ||
| RUN cd rbspy && cargo build --release | ||
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| FROM bitnami/minideb:stretch | ||
| RUN mkdir /app | ||
| COPY --from=agentbuild /go/bin/agent /app/agent | ||
| COPY --from=rbspybuild /rbspy/target/release/rbspy /app/rbspy | ||
|
|
||
| CMD [ "/app/agent" ] |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,42 @@ | ||
| package profiler | ||
|
|
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| import ( | ||
| "bytes" | ||
| "fmt" | ||
| "os/exec" | ||
| "strconv" | ||
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| "github.com/VerizonMedia/kubectl-flame/agent/details" | ||
| "github.com/VerizonMedia/kubectl-flame/agent/utils" | ||
| ) | ||
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||
| const ( | ||
| rbspyLocation = "/app/rbspy" | ||
| rbspyOutputFileName = "/tmp/rbspy" | ||
| ) | ||
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| type RubyProfiler struct{} | ||
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| func (r *RubyProfiler) SetUp(job *details.ProfilingJob) error { | ||
| return nil | ||
| } | ||
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| func (r *RubyProfiler) Invoke(job *details.ProfilingJob) error { | ||
| pid, err := utils.FindRootProcessId(job) | ||
| if err != nil { | ||
| return fmt.Errorf("could not find root process ID: %w", err) | ||
| } | ||
|
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||
| duration := strconv.Itoa(int(job.Duration.Seconds())) | ||
| cmd := exec.Command(rbspyLocation, "record", "--pid", pid, "--file", rbspyOutputFileName, "--duration", duration, "--format", "flamegraph") | ||
| var out bytes.Buffer | ||
| var stderr bytes.Buffer | ||
| cmd.Stdout = &out | ||
| cmd.Stderr = &stderr | ||
| err = cmd.Run() | ||
| if err != nil { | ||
| return fmt.Errorf("could not launch profiler: %w", err) | ||
| } | ||
|
|
||
| return utils.PublishFlameGraph(rbspyOutputFileName) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,112 @@ | ||
| package job | ||
|
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| import ( | ||
| "fmt" | ||
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| "github.com/VerizonMedia/kubectl-flame/cli/cmd/data" | ||
| "github.com/VerizonMedia/kubectl-flame/cli/cmd/version" | ||
| batchv1 "k8s.io/api/batch/v1" | ||
| apiv1 "k8s.io/api/core/v1" | ||
| metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
| "k8s.io/apimachinery/pkg/util/uuid" | ||
| ) | ||
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| type rubyCreator struct{} | ||
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| func (r *rubyCreator) create(targetPod *apiv1.Pod, cfg *data.FlameConfig) (string, *batchv1.Job, error) { | ||
| id := string(uuid.NewUUID()) | ||
| var imageName string | ||
| var imagePullSecret []apiv1.LocalObjectReference | ||
| args := []string{ | ||
| id, | ||
| string(targetPod.UID), | ||
| cfg.TargetConfig.ContainerName, | ||
| cfg.TargetConfig.ContainerId, | ||
| cfg.TargetConfig.Duration.String(), | ||
| string(cfg.TargetConfig.Language), | ||
| cfg.TargetConfig.Pgrep, | ||
| } | ||
|
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| if cfg.TargetConfig.Image != "" { | ||
| imageName = cfg.TargetConfig.Image | ||
| } else { | ||
| imageName = fmt.Sprintf("%s:%s-ruby", baseImageName, version.GetCurrent()) | ||
| } | ||
|
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| if cfg.TargetConfig.ImagePullSecret != "" { | ||
| imagePullSecret = []apiv1.LocalObjectReference{{Name: cfg.TargetConfig.ImagePullSecret}} | ||
| } | ||
|
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| commonMeta := metav1.ObjectMeta{ | ||
| Name: fmt.Sprintf("kubectl-flame-%s", id), | ||
| Namespace: cfg.TargetConfig.Namespace, | ||
| Labels: map[string]string{ | ||
| "kubectl-flame/id": id, | ||
| }, | ||
| Annotations: map[string]string{ | ||
| "sidecar.istio.io/inject": "false", | ||
| }, | ||
| } | ||
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| resources, err := cfg.JobConfig.ToResourceRequirements() | ||
| if err != nil { | ||
| return "", nil, fmt.Errorf("unable to generate resource requirements: %w", err) | ||
| } | ||
|
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| job := &batchv1.Job{ | ||
| TypeMeta: metav1.TypeMeta{ | ||
| Kind: "Job", | ||
| APIVersion: "batch/v1", | ||
| }, | ||
| ObjectMeta: commonMeta, | ||
| Spec: batchv1.JobSpec{ | ||
| Parallelism: int32Ptr(1), | ||
| Completions: int32Ptr(1), | ||
| TTLSecondsAfterFinished: int32Ptr(5), | ||
| Template: apiv1.PodTemplateSpec{ | ||
| ObjectMeta: commonMeta, | ||
| Spec: apiv1.PodSpec{ | ||
| HostPID: true, | ||
| Volumes: []apiv1.Volume{ | ||
| { | ||
| Name: "target-filesystem", | ||
| VolumeSource: apiv1.VolumeSource{ | ||
| HostPath: &apiv1.HostPathVolumeSource{ | ||
| Path: cfg.TargetConfig.DockerPath, | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| ImagePullSecrets: imagePullSecret, | ||
| InitContainers: nil, | ||
| Containers: []apiv1.Container{ | ||
| { | ||
| ImagePullPolicy: apiv1.PullAlways, | ||
| Name: ContainerName, | ||
| Image: imageName, | ||
| Command: []string{"/app/agent"}, | ||
| Args: args, | ||
| VolumeMounts: []apiv1.VolumeMount{ | ||
| { | ||
| Name: "target-filesystem", | ||
| MountPath: "/var/lib/docker", | ||
| }, | ||
| }, | ||
| SecurityContext: &apiv1.SecurityContext{ | ||
| Privileged: boolPtr(true), | ||
| Capabilities: &apiv1.Capabilities{ | ||
| Add: []apiv1.Capability{"SYS_PTRACE"}, | ||
| }, | ||
| }, | ||
| Resources: resources, | ||
| }, | ||
| }, | ||
| RestartPolicy: "Never", | ||
| NodeName: targetPod.Spec.NodeName, | ||
| }, | ||
| }, | ||
| }, | ||
| } | ||
|
|
||
| return id, job, nil | ||
| } |
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