fluentd-gcp-gci.yaml

# This config should be kept as similar as possible to the one at
# cluster/saltbase/salt/fluentd-gcp/fluentd-gcp.yaml
apiVersion: v1
kind: Pod
metadata:
  name: fluentd-cloud-logging
  namespace: kube-system
  labels:
    k8s-app: fluentd-logging
spec:
  dnsPolicy: Default
  containers:
  - name: fluentd-cloud-logging
    image: gcr.io/google_containers/fluentd-gcp:1.28.2
    command:
      - '/bin/sh'
      - '-c'
      # This is pretty hacky, but ruby relies on libsystemd's native code, and
      # the ubuntu:16.04 libsystemd doesn't play nice with the journal on GCI
      # hosts. Work around the problem by copying in the host's libsystemd.
      - 'rm /lib/x86_64-linux-gnu/libsystemd* && cp /host/lib/libsystemd* /lib/x86_64-linux-gnu/ && /usr/sbin/td-agent -q -c /etc/td-agent/td-agent-journal.conf'
    resources:
      limits:
        memory: 200Mi
      requests:
        # Any change here should be accompanied by a proportional change in CPU
        # requests of other per-node add-ons (e.g. kube-proxy).
        cpu: 100m
        memory: 200Mi
    env:
    # Jemalloc is a widely used way to decrease memory consumption
    # in Ruby world. It's a better implementation of malloc(3).
    - name: "LD_PRELOAD"
      value: "/opt/td-agent/embedded/lib/libjemalloc.so"
    # This is quite hacky, but forces Ruby GC to be ivoked more often
    # resulting in lower memory consumption, which is important for us.
    - name: "RUBY_GC_HEAP_OLDOBJECT_LIMIT_FACTOR"
      value: "0.9"
    volumeMounts:
    - name: varlog
      mountPath: /var/log
    - name: varlibdockercontainers
      mountPath: /var/lib/docker/containers
      readOnly: true
    - name: journaldir
      mountPath: /var/log/journal
    - name: libsystemddir
      mountPath: /host/lib
  terminationGracePeriodSeconds: 30
  volumes:
  - name: varlog
    hostPath:
      path: /var/log
  - name: varlibdockercontainers
    hostPath:
      path: /var/lib/docker/containers
  - name: journaldir
    hostPath:
      path: /var/log/journal
  - name: libsystemddir
    hostPath:
      path: /usr/lib64