发布一个k8s部署视频：https://edu.csdn.net/course/detail/26967

课程内容：各种k8s部署方式。包括minikube部署，kubeadm部署，kubeasz部署，rancher部署，k3s部署。包括开发测试环境部署k8s，和生产环境部署k8s。

腾讯课堂连接地址https://ke.qq.com/course/478827?taid=4373109931462251&tuin=ba64518

第二个视频发布  https://edu.csdn.net/course/detail/27109

腾讯课堂连接地址https://ke.qq.com/course/484107?tuin=ba64518

介绍主要的k8s资源的使用配置和命令。包括configmap，pod，service，replicaset，namespace，deployment，daemonset，ingress，pv，pvc，sc，role，rolebinding，clusterrole，clusterrolebinding，secret，serviceaccount，statefulset，job，cronjob，podDisruptionbudget，podSecurityPolicy,networkPolicy,resourceQuota，limitrange，endpoint，event，conponentstatus，node，apiservice，controllerRevision等。

第三个视频发布：https://edu.csdn.net/course/detail/27574

详细介绍helm命令，学习helm chart语法，编写helm chart。深入分析各项目源码，学习编写helm插件
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修改glusterfs daemon

---
kind: DaemonSet
apiVersion: extensions/v1beta1
metadata:
  name: glusterfs
  labels:
    glusterfs: daemonset
  annotations:
    description: GlusterFS DaemonSet
    tags: glusterfs
spec:
  template:
    metadata:
      name: glusterfs
      labels:
        glusterfs: pod
        glusterfs-node: pod
    spec:
      nodeSelector:
        storagenode: glusterfs
      hostNetwork: true
      containers:
      - image: gluster/gluster-centos:latest
        imagePullPolicy: IfNotPresent
        name: glusterfs
        env:
        - name: GB_GLFS_LRU_COUNT
          value: "15"
        - name: TCMU_LOGDIR
          value: "/var/log/glusterfs/gluster-block"
        resources:
          requests:
            memory: 100Mi
            cpu: 100m
        volumeMounts:
        - name: glusterfs-heketi
          mountPath: "/var/lib/heketi"
        - name: glusterfs-run
          mountPath: "/run"
        - name: glusterfs-lvm
          mountPath: "/run/lvm"
        - name: glusterfs-etc
          mountPath: "/etc/glusterfs"
        - name: glusterfs-logs
          mountPath: "/var/log/glusterfs"
        - name: glusterfs-config
          mountPath: "/var/lib/glusterd"
        - name: glusterfs-dev
          mountPath: "/dev"
        - name: glusterfs-misc
          mountPath: "/var/lib/misc/glusterfsd"
        - name: glusterfs-cgroup
          mountPath: "/sys/fs/cgroup"
          readOnly: true
        - name: glusterfs-ssl
          mountPath: "/etc/ssl"
          readOnly: true
        securityContext:
          capabilities: {}
          privileged: true
        readinessProbe:
          timeoutSeconds: 3
          initialDelaySeconds: 40
          exec:
            command:
            - "/bin/bash"
            - "-c"
            - systemctl status glusterd.service
          periodSeconds: 25
          successThreshold: 1
          failureThreshold: 50
        livenessProbe:
          timeoutSeconds: 3
          initialDelaySeconds: 40
          exec:
            command:
            - "/bin/bash"
            - "-c"
            - systemctl status glusterd.service
          periodSeconds: 25
          successThreshold: 1
          failureThreshold: 50
      - name: fluentd-es
        image: 192.168.1.225:5000/fluentd-elasticsearch:v2.0.4-youben
        imagePullPolicy: Always
        command: ["/bin/sh"]
        args: ["-c", "/run.sh $FLUENTD_ARGS"]
        env:
        - name: FLUENTD_ARGS
          value: --no-supervisor -q
        volumeMounts:
        - name: config-volume
          mountPath: /etc/fluent/config.d
        - name: glusterfs-logs
          mountPath: /var/log/glusterfs
      volumes:
      - name: glusterfs-heketi
        hostPath:
          path: "/var/lib/heketi"
      - name: glusterfs-run
      - name: glusterfs-lvm
        hostPath:
          path: "/run/lvm"
      - name: glusterfs-etc
        hostPath:
          path: "/etc/glusterfs"
      - name: glusterfs-logs
        hostPath:
          path: "/var/log/glusterfs"
      - name: glusterfs-config
        hostPath:
          path: "/var/lib/glusterd"
      - name: glusterfs-dev
        hostPath:
          path: "/dev"
      - name: glusterfs-misc
        hostPath:
          path: "/var/lib/misc/glusterfsd"
      - name: glusterfs-cgroup
        hostPath:
          path: "/sys/fs/cgroup"
      - name: glusterfs-ssl
        hostPath:
          path: "/etc/ssl"
      - name: config-volume
        configMap:
          name: fluentd-es-config-glusterfs

fluent配置：记得安装fluent glusterfs插件：https://github.com/keithseahus/fluent-plugin-glusterfs

kind: ConfigMap
apiVersion: v1
metadata:
  name: fluentd-es-config-glusterfs
  labels:
    addonmanager.kubernetes.io/mode: Reconcile
data:
  system.conf: |-
    <system>
      root_dir /tmp/fluentd-buffers/
    </system>

  input.conf: |- 
    <source>
      @type glusterfs_log
      path /var/log/glusterfs/glusterd.log
      pos_file /var/log/fluent/glusterd.log.pos
      tag glusterfs_log.glusterd
      format /^(?<message>.*)$/
      refresh_interval 1800
    </source>

    <source>
      @type glusterfs_log
      path /var/log/glusterfs/mnt-*.log
      pos_file /var/log/fluent/mnt.log.pos
      tag glusterfs_log.mnt
      format /^(?<message>.*)$/
      refresh_interval 1800
    </source>

    <source>
      @type glusterfs_log
      path /var/log/glusterfs/glustershd.log
      pos_file /var/log/fluent/glustershd.log.pos
      tag glusterfs_log.glustershd
      format /^(?<message>.*)$/
      refresh_interval 1800
    </source>

    <source>
      @type glusterfs_log
      path /var/log/glusterfs/cli.log
      pos_file /var/log/fluent/cli.log.pos
      tag glusterfs_log.cli
      format /^(?<message>.*)$/
      refresh_interval 1800
    </source>
    
  output.conf: |-
    <match glusterfs_log.*>
      @id elasticsearch.glusterfs
      @type elasticsearch
      @log_level info
      include_tag_key true
      host elasticsearch-logging.kube-system.svc.cluster.local
      port 9200
      logstash_format true
      logstash_prefix docker.glusterfs
      logstash_dateformat %Y-%m-%d
      type_name docker_glusterfs
      <buffer>
        @type file
        path /var/log/fluentd-buffers/kubernetes.system.buffer
        flush_mode interval
        retry_type exponential_backoff
        flush_thread_count 2
        flush_interval 5s
        retry_forever
        retry_max_interval 30
        chunk_limit_size 2M
        queue_limit_length 8
        overflow_action block
      </buffer>
    </match>