Create a DaemonSet Replica for Syslog

The logs of all NCP components can be redirected with this method. The applications need to be configured to log to stderr, which is enabled by default. The following procedure assumes that the syslog agent image is example/rsyslog.

Create the DaemonSet yaml file. For example,

    apiVersion: v1
    kind: ConfigMap
    metadata:
      name: rsyslog-config
      labels:
        version: v1
    data:
      nsx-ncp.conf: |
        module(load="imfile")
    
        ruleset(name="remote") {
          if $msg contains 'nsx-container' then
            action(type="omfwd"
            Protocol="tcp"
            Target="nsx.example.com"
            Port="514")
      
            stop
          }
      
          input(type="imfile"
            File="/var/log/containers/nsx-node-agent-*.log"
            Tag="nsx-node-agent"
            Ruleset="remote")
      
          input(type="imfile"
            File="/var/log/containers/nsx-ncp-*.log"
            Tag="nsx-ncp"
            Ruleset="remote")
      
          input(type="imfile"
            File="/var/log/syslog"
            Tag="nsx-cni"
            Ruleset="remote")
    ---
    # rsyslog DaemonSet
    apiVersion: extensions/v1beta1
    kind: DaemonSet
    metadata:
      name: rsyslog
      labels:
        component: rsyslog
        version: v1
    spec:
      template:
        metadata:
          labels:
          component: rsyslog
          version: v1
    spec:
      hostNetwork: true
      containers:
      - name: rsyslog
        image: example/rsyslog
        imagePullPolicy: IfNotPresent
        volumeMounts:
        - name: rsyslog-config-volume
          mountPath: /etc/rsyslog.d
        - name: log-volume
          mountPath: /var/log
        - name: container-volume
          mountPath: /var/lib/docker/containers
      volumes:
      - name: rsyslog-config-volume
        configMap:
        name: rsyslog-config
      - name: log-volume
        hostPath:
          path: /var/log
      - name: container-volume
        hostPath:
          path: /var/lib/docker/containers

Create the DaemonSet.

kubectl apply -f <daemonset yaml file>

Configuring Syslog

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VMware NSX Container Plugin 4.1

Create a DaemonSet Replica for Syslog