部署日志收集器
最后，可以使用以下命令，部署Loki的日志收集器：
代码语言：javascript复制apiVersion: v1
kind: ConfigMap
metadata:
name: loki-agent-config
namespace: monitoring
data:
promtail-local-config.yaml: |-
server:
http_listen_port: 9080
grpc_listen_port: 0
positions:
filename: /tmp/positions.yaml
clients:
- url: http://loki:3100/loki/api/v1/push
tenant_id: k8s
external_labels:
cluster: test
replica: "1"
namespace: default
pod_name: nginx-xxxxx
container_name: nginx
scrape_configs:
- job_name: nginx
static_configs:
- targets: ["localhost"]
labels:
job: nginx
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: loki-agent
namespace: monitoring
spec:
selector:
matchLabels:
app: loki-agent
replicas: 1
template:
metadata:
labels:
app: loki-agent
spec:
serviceAccountName: loki-datasource
containers:
- name: promtail
image: grafana/promtail:latest
imagePullPolicy: Always
command: ["/usr/bin/promtail", "-config.file=/etc/promtail-local-config.yaml"]
ports:
- name: http
containerPort: 9080
volumeMounts:
- name: config
mountPath: /etc/promtail-local-config.yaml
subPath: promtail-local-config.yaml
- name: var-log
mountPath: /var/log/nginx
readOnly: true
env:
- name: NODE_NAME
valueFrom:
fieldRef:
fieldPath: spec.nodeName
volumes:
- name: config
configMap:
name: loki-agent-config
- name: var-log
hostPath:
path: /var/log/nginx在此示例中，首先定义了一个ConfigMap对象，其中包含了Promtail的配置信息。然后，创建了一个Deployment对象，用于部署Loki的日志收集器。在Deployment对象中，指定了Promtail的镜像以及容器的端口号。此外，还指定了一个名为loki-agent-config的ConfigMap，用于存储Promtail的配置文件。在容器中，使用/etc/promtail-local-config.yaml路径挂载此ConfigMap。
在容器中，还指定了一个名为var-log的主机路径卷，用于存储Nginx的日志文件。为了将Nginx的日志文件发送到Loki，使用了Promtail的客户端库将日志发送到Loki中。在此示例中，将Nginx的日志发送到http://loki:3100/loki/api/v1/push中。
