Container Service for Kubernetes:Collect system plugin logs

Step 1: Create a log configuration file for a system plugin

ACK log collection is extended using a CustomResourceDefinition (CRD). When you deploy an AliyunLogConfig CRD configuration, the Log Controller automatically creates the required collection configurations and report resources for Simple Log Service. For more information about how to create a custom resource, see Manage custom resources.

Use the following examples to create an AliyunLogConfig configuration file for the storage, Terway network, Flannel network, or Auto Scaling plugins.

• Log configuration example for the CSI storage plugin:

  apiVersion: log.alibabacloud.com/v1alpha1
  kind: AliyunLogConfig
  metadata:
    # The configuration name must be unique in the Kubernetes cluster.
    name: k8s-csi-log
    namespace: kube-system
  spec:
    # The name of the Logstore for log uploads.
    logstore: k8s-csi-log
    # The details of the Logtail configuration.
    logtailConfig:
      # The input type for Docker standard output is "plugin".
      inputType: plugin
      # The name of the Logtail configuration. It must be the same as metadata.name.
      configName: k8s-csi-log
      inputDetail:
        plugin:
          inputs:
            -
              # The input type.
              type: service_docker_stdout
              detail:
                # Collect stdout and stderr.
                Stdout: true
                Stderr: true
                K8sNamespaceRegex: "^kube-system$"
                K8sPodRegex: "^csi.*$"

• Log configuration example for the Terway network plugin:

  apiVersion: log.alibabacloud.com/v1alpha1
  kind: AliyunLogConfig
  metadata:
    # The configuration name must be unique in the Kubernetes cluster.
    name: k8s-terway-log
    namespace: kube-system
  spec:
    # The name of the Logstore for log uploads.
    logstore: k8s-terway-log
    # The details of the Logtail configuration.
    logtailConfig:
    # The input type for Docker standard output is "plugin".
      inputType: plugin
      # The name of the Logtail configuration. It must be the same as metadata.name.
      configName: k8s-terway-log
      inputDetail:
        plugin:
          inputs:
            -
              # The input type.
              type: service_docker_stdout
              detail:
                # Collect stdout and stderr.
                Stdout: true
                Stderr: true
                K8sNamespaceRegex: "^kube-system$"
                K8sPodRegex: "^terway-eniip.*$"

• Log configuration example for the Flannel network plugin:

  apiVersion: log.alibabacloud.com/v1alpha1
  kind: AliyunLogConfig
  metadata:
    # The configuration name must be unique in the Kubernetes cluster.
    name: k8s-flannel-log
    namespace: kube-system
  spec:
    # The name of the Logstore for log uploads.
    logstore: k8s-flannel-log
    # The details of the Logtail configuration.
    logtailConfig:
      # The input type for Docker standard output is "plugin".
      inputType: plugin
      # The name of the Logtail configuration. It must be the same as metadata.name.
      configName: k8s-flannel-log
      inputDetail:
        plugin:
          inputs:
            -
              # The input type.
              type: service_docker_stdout
              detail:
                # Collect stdout and stderr.
                Stdout: true
                Stderr: true
                K8sNamespaceRegex: "^kube-system$"
                K8sPodRegex: "^kube-flannel-ds.*$"

• Log configuration example for the Auto Scaling plugin:

  apiVersion: log.alibabacloud.com/v1alpha1
  kind: AliyunLogConfig
  metadata:
    # The configuration name must be unique in the Kubernetes cluster.
    name: k8s-cluster-autoscaler-log
    namespace: kube-system
  spec:
    # The name of the Logstore for log uploads.
    logstore: k8s-cluster-autoscaler-log
    # The details of the Logtail configuration.
    logtailConfig:
      # The input type for Docker standard output is "plugin".
      inputType: plugin
      # The name of the Logtail configuration. It must be the same as metadata.name.
      configName: k8s-cluster-autoscaler-log
      inputDetail:
        plugin:
          inputs:
            -
              # The input type.
              type: service_docker_stdout
              detail:
                # Collect stdout and stderr.
                Stdout: true
                Stderr: true
                K8sNamespaceRegex: "^kube-system$"
                K8sPodRegex: "^cluster-autoscaler.*$"

Step 2: View logs

For more information about how to view logs, see Collect logs from containers in an ACK cluster.