139 lines
3.4 KiB
YAML
139 lines
3.4 KiB
YAML
# Promtail — DaemonSet that tails pod logs on every node and ships them to Loki.
|
|
#
|
|
# Runs on ALL nodes (amd64 + arm). Multi-arch image. Reads /var/log/pods/*,
|
|
# attaches k8s labels (namespace, pod, container), ships to loki.monitoring:3100.
|
|
---
|
|
apiVersion: v1
|
|
kind: ServiceAccount
|
|
metadata:
|
|
name: promtail
|
|
namespace: monitoring
|
|
---
|
|
apiVersion: rbac.authorization.k8s.io/v1
|
|
kind: ClusterRole
|
|
metadata:
|
|
name: promtail
|
|
rules:
|
|
- apiGroups: [""]
|
|
resources:
|
|
- nodes
|
|
- nodes/proxy
|
|
- services
|
|
- endpoints
|
|
- pods
|
|
verbs: ["get", "list", "watch"]
|
|
---
|
|
apiVersion: rbac.authorization.k8s.io/v1
|
|
kind: ClusterRoleBinding
|
|
metadata:
|
|
name: promtail
|
|
roleRef:
|
|
apiGroup: rbac.authorization.k8s.io
|
|
kind: ClusterRole
|
|
name: promtail
|
|
subjects:
|
|
- kind: ServiceAccount
|
|
name: promtail
|
|
namespace: monitoring
|
|
---
|
|
apiVersion: v1
|
|
kind: ConfigMap
|
|
metadata:
|
|
name: promtail-config
|
|
namespace: monitoring
|
|
data:
|
|
promtail.yaml: |
|
|
server:
|
|
http_listen_port: 9080
|
|
grpc_listen_port: 0
|
|
|
|
positions:
|
|
filename: /tmp/positions.yaml
|
|
|
|
clients:
|
|
- url: http://loki.monitoring:3100/loki/api/v1/push
|
|
|
|
scrape_configs:
|
|
# Tail all container logs via /var/log/containers/*.log (symlinks to
|
|
# /var/log/pods/<ns>_<pod>_<uid>/<container>/<N>.log). Extract namespace,
|
|
# pod, container labels from the filename via pipeline_stages regex.
|
|
- job_name: kubernetes-containers
|
|
static_configs:
|
|
- targets:
|
|
- localhost
|
|
labels:
|
|
job: kube-containers
|
|
__path__: /var/log/containers/*.log
|
|
pipeline_stages:
|
|
- cri: {}
|
|
# k3s filename: <pod>_<namespace>_<container>-<hash>.log
|
|
- regex:
|
|
expression: '/var/log/containers/(?P<pod>[^_]+)_(?P<namespace>[^_]+)_(?P<container>[^-]+)-.*\.log'
|
|
source: filename
|
|
- labels:
|
|
pod:
|
|
namespace:
|
|
container:
|
|
---
|
|
apiVersion: apps/v1
|
|
kind: DaemonSet
|
|
metadata:
|
|
name: promtail
|
|
namespace: monitoring
|
|
labels:
|
|
app: promtail
|
|
spec:
|
|
selector:
|
|
matchLabels:
|
|
app: promtail
|
|
template:
|
|
metadata:
|
|
labels:
|
|
app: promtail
|
|
spec:
|
|
serviceAccountName: promtail
|
|
tolerations:
|
|
- operator: Exists # run on every node including tainted Pis
|
|
containers:
|
|
- name: promtail
|
|
image: grafana/promtail:3.4.4
|
|
args:
|
|
- -config.file=/etc/promtail/promtail.yaml
|
|
- -config.expand-env=true
|
|
env:
|
|
- name: NODE_NAME
|
|
valueFrom:
|
|
fieldRef:
|
|
fieldPath: spec.nodeName
|
|
volumeMounts:
|
|
- name: config
|
|
mountPath: /etc/promtail
|
|
readOnly: true
|
|
- name: positions
|
|
mountPath: /tmp
|
|
- name: pods-logs
|
|
mountPath: /var/log/pods
|
|
readOnly: true
|
|
- name: containers-logs
|
|
mountPath: /var/log/containers
|
|
readOnly: true
|
|
resources:
|
|
requests:
|
|
memory: "64Mi"
|
|
cpu: "50m"
|
|
limits:
|
|
memory: "256Mi"
|
|
cpu: "250m"
|
|
volumes:
|
|
- name: config
|
|
configMap:
|
|
name: promtail-config
|
|
- name: positions
|
|
emptyDir: {}
|
|
- name: pods-logs
|
|
hostPath:
|
|
path: /var/log/pods
|
|
- name: containers-logs
|
|
hostPath:
|
|
path: /var/log/containers
|