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promtail.sh
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#!/bin/sh
INSTANCEID="${1:-}"
APIKEY="${2:-}"
INSTANCEURL="${3:-}"
NAMESPACE="${4:-default}"
CONTAINERROOT="${5:-/var/lib/docker}"
PARSER="${6:-- docker:}"
if [ -z "$INSTANCEID" -o -z "$APIKEY" -o -z "$INSTANCEURL" -o -z "$NAMESPACE" -o -z "$CONTAINERROOT" -o -z "$PARSER" ]; then
echo "usage: $0 <instanceId> <apiKey> <url> [<namespace>[<container_root_path>[<parser>]]]"
exit 1
fi
TEMPLATE=$(cat <<'YAML'
apiVersion: v1
data:
promtail.yml: |
scrape_configs:
- pipeline_stages:
<parser>
job_name: kubernetes-pods-name
kubernetes_sd_configs:
- role: pod
relabel_configs:
- source_labels:
- __meta_kubernetes_pod_label_name
target_label: __service__
- source_labels:
- __meta_kubernetes_pod_node_name
target_label: __host__
- action: drop
regex: ^$
source_labels:
- __service__
- action: replace
replacement: $1
separator: /
source_labels:
- __meta_kubernetes_namespace
- __service__
target_label: job
- action: replace
source_labels:
- __meta_kubernetes_namespace
target_label: namespace
- action: replace
source_labels:
- __meta_kubernetes_pod_name
target_label: instance
- action: replace
source_labels:
- __meta_kubernetes_pod_container_name
target_label: container_name
- action: labelmap
regex: __meta_kubernetes_pod_label_(.+)
- replacement: /var/log/pods/*$1/*.log
separator: /
source_labels:
- __meta_kubernetes_pod_uid
- __meta_kubernetes_pod_container_name
target_label: __path__
- pipeline_stages:
<parser>
job_name: kubernetes-pods-app
kubernetes_sd_configs:
- role: pod
relabel_configs:
- action: drop
regex: .+
source_labels:
- __meta_kubernetes_pod_label_name
- source_labels:
- __meta_kubernetes_pod_label_app
target_label: __service__
- source_labels:
- __meta_kubernetes_pod_node_name
target_label: __host__
- action: drop
regex: ^$
source_labels:
- __service__
- action: replace
replacement: $1
separator: /
source_labels:
- __meta_kubernetes_namespace
- __service__
target_label: job
- action: replace
source_labels:
- __meta_kubernetes_namespace
target_label: namespace
- action: replace
source_labels:
- __meta_kubernetes_pod_name
target_label: instance
- action: replace
source_labels:
- __meta_kubernetes_pod_container_name
target_label: container_name
- action: labelmap
regex: __meta_kubernetes_pod_label_(.+)
- replacement: /var/log/pods/*$1/*.log
separator: /
source_labels:
- __meta_kubernetes_pod_uid
- __meta_kubernetes_pod_container_name
target_label: __path__
- pipeline_stages:
<parser>
job_name: kubernetes-pods-direct-controllers
kubernetes_sd_configs:
- role: pod
relabel_configs:
- action: drop
regex: .+
separator: ''
source_labels:
- __meta_kubernetes_pod_label_name
- __meta_kubernetes_pod_label_app
- action: drop
regex: ^([0-9a-z-.]+)(-[0-9a-f]{8,10})$
source_labels:
- __meta_kubernetes_pod_controller_name
- source_labels:
- __meta_kubernetes_pod_controller_name
target_label: __service__
- source_labels:
- __meta_kubernetes_pod_node_name
target_label: __host__
- action: drop
regex: ^$
source_labels:
- __service__
- action: replace
replacement: $1
separator: /
source_labels:
- __meta_kubernetes_namespace
- __service__
target_label: job
- action: replace
source_labels:
- __meta_kubernetes_namespace
target_label: namespace
- action: replace
source_labels:
- __meta_kubernetes_pod_name
target_label: instance
- action: replace
source_labels:
- __meta_kubernetes_pod_container_name
target_label: container_name
- action: labelmap
regex: __meta_kubernetes_pod_label_(.+)
- replacement: /var/log/pods/*$1/*.log
separator: /
source_labels:
- __meta_kubernetes_pod_uid
- __meta_kubernetes_pod_container_name
target_label: __path__
- pipeline_stages:
<parser>
job_name: kubernetes-pods-indirect-controller
kubernetes_sd_configs:
- role: pod
relabel_configs:
- action: drop
regex: .+
separator: ''
source_labels:
- __meta_kubernetes_pod_label_name
- __meta_kubernetes_pod_label_app
- action: keep
regex: ^([0-9a-z-.]+)(-[0-9a-f]{8,10})$
source_labels:
- __meta_kubernetes_pod_controller_name
- action: replace
regex: ^([0-9a-z-.]+)(-[0-9a-f]{8,10})$
source_labels:
- __meta_kubernetes_pod_controller_name
target_label: __service__
- source_labels:
- __meta_kubernetes_pod_node_name
target_label: __host__
- action: drop
regex: ^$
source_labels:
- __service__
- action: replace
replacement: $1
separator: /
source_labels:
- __meta_kubernetes_namespace
- __service__
target_label: job
- action: replace
source_labels:
- __meta_kubernetes_namespace
target_label: namespace
- action: replace
source_labels:
- __meta_kubernetes_pod_name
target_label: instance
- action: replace
source_labels:
- __meta_kubernetes_pod_container_name
target_label: container_name
- action: labelmap
regex: __meta_kubernetes_pod_label_(.+)
- replacement: /var/log/pods/*$1/*.log
separator: /
source_labels:
- __meta_kubernetes_pod_uid
- __meta_kubernetes_pod_container_name
target_label: __path__
- pipeline_stages:
<parser>
job_name: kubernetes-pods-static
kubernetes_sd_configs:
- role: pod
relabel_configs:
- action: drop
regex: ^$
source_labels:
- __meta_kubernetes_pod_annotation_kubernetes_io_config_mirror
- action: replace
source_labels:
- __meta_kubernetes_pod_label_component
target_label: __service__
- source_labels:
- __meta_kubernetes_pod_node_name
target_label: __host__
- action: drop
regex: ^$
source_labels:
- __service__
- action: replace
replacement: $1
separator: /
source_labels:
- __meta_kubernetes_namespace
- __service__
target_label: job
- action: replace
source_labels:
- __meta_kubernetes_namespace
target_label: namespace
- action: replace
source_labels:
- __meta_kubernetes_pod_name
target_label: instance
- action: replace
source_labels:
- __meta_kubernetes_pod_container_name
target_label: container_name
- action: labelmap
regex: __meta_kubernetes_pod_label_(.+)
- replacement: /var/log/pods/*$1/*.log
separator: /
source_labels:
- __meta_kubernetes_pod_annotation_kubernetes_io_config_mirror
- __meta_kubernetes_pod_container_name
target_label: __path__
kind: ConfigMap
metadata:
name: promtail
---
apiVersion: apps/v1
kind: DaemonSet
metadata:
name: promtail
spec:
minReadySeconds: 10
selector:
matchLabels:
name: promtail
template:
metadata:
labels:
name: promtail
spec:
containers:
- args:
- -client.url=https://<instanceId>:<apiKey>@<instanceUrl>/api/prom/push
- -config.file=/etc/promtail/promtail.yml
env:
- name: HOSTNAME
valueFrom:
fieldRef:
fieldPath: spec.nodeName
image: grafana/promtail:latest
imagePullPolicy: Always
name: promtail
readinessProbe:
httpGet:
path: /ready
port: http-metrics
scheme: HTTP
initialDelaySeconds: 10
ports:
- containerPort: 80
name: http-metrics
securityContext:
privileged: true
runAsUser: 0
volumeMounts:
- mountPath: /etc/promtail
name: promtail
- mountPath: /var/log
name: varlog
- mountPath: /var/lib/docker/containers
name: varlibdockercontainers
readOnly: true
serviceAccount: promtail
tolerations:
- effect: NoSchedule
operator: Exists
volumes:
- configMap:
name: promtail
name: promtail
- hostPath:
path: /var/log
name: varlog
- hostPath:
path: <container_root_path>/containers
name: varlibdockercontainers
updateStrategy:
type: RollingUpdate
---
apiVersion: v1
kind: ServiceAccount
metadata:
name: promtail
---
apiVersion: rbac.authorization.k8s.io/v1beta1
kind: ClusterRole
metadata:
name: promtail
rules:
- apiGroups:
- ""
resources:
- nodes
- nodes/proxy
- services
- endpoints
- pods
verbs:
- get
- list
- watch
---
apiVersion: rbac.authorization.k8s.io/v1beta1
kind: ClusterRoleBinding
metadata:
name: promtail
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: ClusterRole
name: promtail
subjects:
- kind: ServiceAccount
name: promtail
namespace: <namespace>
YAML
)
echo "$TEMPLATE" | sed \
-e "s#<instanceId>#${INSTANCEID}#" \
-e "s#<apiKey>#${APIKEY}#" \
-e "s#<instanceUrl>#${INSTANCEURL}#" \
-e "s#<namespace>#${NAMESPACE}#" \
-e "s#<container_root_path>#${CONTAINERROOT}#" \
-e "s#<parser>#${PARSER}#"