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fluentd.j2
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fluentd.j2
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---
apiVersion: v1
kind: ConfigMap
metadata:
labels:
name: fluentd
version: v1
name: fluentd
namespace: {{ logging_ns }}
data:
entrypoint.sh: |
#!/usr/bin/env sh
#extracted from original image
#patch sending fluentd logs output to some file
#fluentd can't parse its own logs somehow
set -e
SIMPLE_SNIFFER=$( gem contents fluent-plugin-elasticsearch | grep elasticsearch_simple_sniffer.rb )
if [ -n "$SIMPLE_SNIFFER" -a -f "$SIMPLE_SNIFFER" ] ; then
FLUENTD_OPT="$FLUENTD_OPT -r $SIMPLE_SNIFFER"
fi
exec fluentd -c /fluentd/etc/${FLUENTD_CONF} -p /fluentd/plugins --gemfile /fluentd/Gemfile ${FLUENTD_OPT} >/var/log/fluentd.log 2>&1
kubernetes.conf: |
#extracted from original image
#patch introducing cri-o/containerd logs parsing
#see https://github.com/fluent/fluentd-kubernetes-daemonset/issues/412
<label @FLUENT_LOG>
<match fluent.**>
@type null
</match>
</label>
<source>
@type tail
@id in_tail_container_logs
path /var/log/containers/*.log
pos_file /var/log/fluentd-containers.log.pos
tag "#{ENV['FLUENT_CONTAINER_TAIL_TAG'] || 'kubernetes.*'}"
exclude_path "#{ENV['FLUENT_CONTAINER_TAIL_EXCLUDE_PATH'] || use_default}"
# excludes fluentd containers, in logging namespace, fluentd pods
read_from_head true
<parse>
{% if (container_manager | default('docker')) in [ 'crio', 'containerd' ] %}
@type regexp
expression /^(?<logtime>.+) (?<stream>stdout|stderr) (?<logtag>[FP]) (?<log>.+)$/i
time_key logtime
time_format %Y-%m-%dT%H:%M:%S.%N%Z
{% else %}
@type "#{ENV['FLUENT_CONTAINER_TAIL_PARSER_TYPE'] || 'json'}"
time_format %Y-%m-%dT%H:%M:%S.%NZ
{% endif %}
</parse>
</source>
{% if (container_manager | default('docker')) in [ 'crio', 'containerd' ] %}
<filter kubernetes.**>
@type concat
key log
partial_key logtag
partial_value P
separator ""
</filter>
{% endif %}
<source>
@type tail
@id in_tail_minion
path /var/log/salt/minion
pos_file /var/log/fluentd-salt.pos
tag salt
<parse>
@type regexp
expression /^(?<time>[^ ]* [^ ,]*)[^\[]*\[[^\]]*\]\[(?<severity>[^ \]]*) *\] (?<message>.*)$/
time_format %Y-%m-%d %H:%M:%S
</parse>
</source>
<source>
@type tail
@id in_tail_startupscript
path /var/log/startupscript.log
pos_file /var/log/fluentd-startupscript.log.pos
tag startupscript
<parse>
@type syslog
</parse>
</source>
<source>
@type tail
@id in_tail_docker
path /var/log/docker.log
pos_file /var/log/fluentd-docker.log.pos
tag docker
<parse>
@type regexp
expression /^time="(?<time>[^)]*)" level=(?<severity>[^ ]*) msg="(?<message>[^"]*)"( err="(?<error>[^"]*)")?( statusCode=($<status_code>\d+))?/
</parse>
</source>
<source>
@type tail
@id in_tail_etcd
path /var/log/etcd.log
pos_file /var/log/fluentd-etcd.log.pos
tag etcd
<parse>
@type none
</parse>
</source>
<source>
@type tail
@id in_tail_kubelet
multiline_flush_interval 5s
path /var/log/kubelet.log
pos_file /var/log/fluentd-kubelet.log.pos
tag kubelet
<parse>
@type kubernetes
</parse>
</source>
<source>
@type tail
@id in_tail_kube_proxy
multiline_flush_interval 5s
path /var/log/kube-proxy.log
pos_file /var/log/fluentd-kube-proxy.log.pos
tag kube-proxy
<parse>
@type kubernetes
</parse>
</source>
<source>
@type tail
@id in_tail_kube_apiserver
multiline_flush_interval 5s
path /var/log/kube-apiserver.log
pos_file /var/log/fluentd-kube-apiserver.log.pos
tag kube-apiserver
<parse>
@type kubernetes
</parse>
</source>
<source>
@type tail
@id in_tail_kube_controller_manager
multiline_flush_interval 5s
path /var/log/kube-controller-manager.log
pos_file /var/log/fluentd-kube-controller-manager.log.pos
tag kube-controller-manager
<parse>
@type kubernetes
</parse>
</source>
<source>
@type tail
@id in_tail_kube_scheduler
multiline_flush_interval 5s
path /var/log/kube-scheduler.log
pos_file /var/log/fluentd-kube-scheduler.log.pos
tag kube-scheduler
<parse>
@type kubernetes
</parse>
</source>
<source>
@type tail
@id in_tail_rescheduler
multiline_flush_interval 5s
path /var/log/rescheduler.log
pos_file /var/log/fluentd-rescheduler.log.pos
tag rescheduler
<parse>
@type kubernetes
</parse>
</source>
<source>
@type tail
@id in_tail_glbc
multiline_flush_interval 5s
path /var/log/glbc.log
pos_file /var/log/fluentd-glbc.log.pos
tag glbc
<parse>
@type kubernetes
</parse>
</source>
<source>
@type tail
@id in_tail_cluster_autoscaler
multiline_flush_interval 5s
path /var/log/cluster-autoscaler.log
pos_file /var/log/fluentd-cluster-autoscaler.log.pos
tag cluster-autoscaler
<parse>
@type kubernetes
</parse>
</source>
<source>
@type tail
@id in_tail_kube_apiserver_audit
multiline_flush_interval 5s
path /var/log/kubernetes/kube-apiserver-audit.log
pos_file /var/log/kube-apiserver-audit.log.pos
tag kube-apiserver-audit
<parse>
@type multiline
format_firstline /^\S+\s+AUDIT:/
format1 /^(?<time>\S+) AUDIT:(?: (?:id="(?<id>(?:[^"\\]|\\.)*)"|ip="(?<ip>(?:[^"\\]|\\.)*)"|method="(?<method>(?:[^"\\]|\\.)*)"|user="(?<user>(?:[^"\\]|\\.)*)"|groups="(?<groups>(?:[^"\\]|\\.)*)"|as="(?<as>(?:[^"\\]|\\.)*)"|asgroups="(?<asgroups>(?:[^"\\]|\\.)*)"|namespace="(?<namespace>(?:[^"\\]|\\.)*)"|uri="(?<uri>(?:[^"\\]|\\.)*)"|response="(?<response>(?:[^"\\]|\\.)*)"|\w+="(?:[^"\\]|\\.)*"))*/
time_format %Y-%m-%dT%T.%L%Z
</parse>
</source>
<filter kubernetes.**>
@type kubernetes_metadata
@id filter_kube_metadata
kubernetes_url "#{ENV['FLUENT_FILTER_KUBERNETES_URL'] || 'https://' + ENV.fetch('KUBERNETES_SERVICE_HOST') + ':' + ENV.fetch('KUBERNETES_SERVICE_PORT') + '/api'}"
verify_ssl "#{ENV['KUBERNETES_VERIFY_SSL'] || true}"
ca_file "#{ENV['KUBERNETES_CA_FILE']}"
skip_labels "#{ENV['FLUENT_KUBERNETES_METADATA_SKIP_LABELS'] || 'false'}"
skip_container_metadata "#{ENV['FLUENT_KUBERNETES_METADATA_SKIP_CONTAINER_METADATA'] || 'false'}"
skip_master_url "#{ENV['FLUENT_KUBERNETES_METADATA_SKIP_MASTER_URL'] || 'false'}"
skip_namespace_metadata "#{ENV['FLUENT_KUBERNETES_METADATA_SKIP_NAMESPACE_METADATA'] || 'false'}"
</filter>
systemd.conf: |
#extracted from original image
#patch reading from /run/log/journal
<source>
@type systemd
@id in_systemd_kubelet
matches [{ "_SYSTEMD_UNIT": "kubelet.service" }]
path /run/log/journal
<storage>
@type local
persistent true
path /var/log/fluentd-journald-kubelet-cursor.json
</storage>
<entry>
fields_strip_underscores true
</entry>
read_from_head true
tag kubelet
</source>
<source>
@type systemd
@id in_systemd_docker
path /run/log/journal
matches [{ "_SYSTEMD_UNIT": "docker.service" }]
<storage>
@type local
persistent true
path /var/log/fluentd-journald-docker-cursor.json
</storage>
<entry>
fields_strip_underscores true
</entry>
read_from_head true
tag docker.systemd
</source>
<source>
@type systemd
@id in_systemd_bootkube
path /run/log/journal
matches [{ "_SYSTEMD_UNIT": "bootkube.service" }]
<storage>
@type local
persistent true
path /var/log/fluentd-journald-bootkube-cursor.json
</storage>
<entry>
fields_strip_underscores true
</entry>
read_from_head true
tag bootkube
</source>
---
apiVersion: apps/v1
kind: DaemonSet
metadata:
labels:
name: fluentd
version: v1
name: fluentd
namespace: {{ logging_ns }}
spec:
selector:
matchLabels:
name: fluentd
version: v1
template:
metadata:
labels:
name: fluentd
version: v1
spec:
containers:
- env:
- name: FLUENT_ELASTICSEARCH_HOST
value: elasticsearch.{{ logging_ns }}.svc.{{ cluster_name }}
- name: FLUENT_ELASTICSEARCH_PORT
value: "9200"
- name: FLUENT_ELASTICSEARCH_SCHEME
value: http
- name: FLUENT_UID
value: "0"
name: fluentd
image: fluent/fluentd-kubernetes-daemonset:{{ fluentd_tag }}
securityContext:
privileged: true
resources:
limits:
cpu: 200m
memory: 768Mi
requests:
cpu: 100m
memory: 512Mi
volumeMounts:
- mountPath: /fluentd/etc/kubernetes.conf
name: config
subPath: kubernetes.conf
- mountPath: /fluentd/etc/systemd.conf
name: config
subPath: systemd.conf
- mountPath: /fluentd/entrypoint.sh
name: config
subPath: entrypoint.sh
- mountPath: /etc/localtime
name: localtime
readOnly: true
- mountPath: /run/log/journal
name: runlogjournal
readOnly: true
- mountPath: /var/log
name: varlog
nodeSelector:
kubernetes.io/os: linux
restartPolicy: Always
serviceAccount: fluentd
serviceAccountName: fluentd
terminationGracePeriodSeconds: 30
tolerations:
- effect: NoSchedule
key: node-role.kubernetes.io/master
volumes:
- projected:
defaultMode: 0644
sources:
- configMap:
name: fluentd
items:
- key: kubernetes.conf
path: kubernetes.conf
- configMap:
name: fluentd
items:
- key: systemd.conf
path: systemd.conf
- configMap:
name: fluentd
items:
- key: entrypoint.sh
mode: 0755
path: entrypoint.sh
name: config
- hostPath:
path: /var/log
type: ""
name: varlog
- hostPath:
path: /run/log/journal
type: ""
name: runlogjournal
- hostPath:
path: /etc/localtime
type: ""
name: localtime
updateStrategy:
rollingUpdate:
maxUnavailable: 3
type: RollingUpdate