Promtail failed to grep log

[andrewk2]

I would like to use Loki to collect server logs for my AWS EKS Fargate Application. As I am new in Loki, I tried to follow the simplest example to set the config in promtail.yaml, but failed after using different ways for it…

I tried to use kubectl logs to find some hints from pod’s log, but seems nothing special…

level=info ts=2022-09-15T10:10:38.558067919Z caller=server.go:288 http=[::]:3101 grpc=[::]:9095 msg="server listening on addresses"
level=info ts=2022-09-15T10:10:38.558268213Z caller=main.go:121 msg="Starting Promtail" version="(version=2.6.1, branch=HEAD, revision=6bd05c9a4)"
level=info ts=2022-09-15T10:10:43.559457087Z caller=filetargetmanager.go:338 msg="Adding target" key="/usr/local/jboss_api/standalone/log*.log:{host=\"co2\", job=\"apilogs\"}"

When I browsed to Promtail UI using :3101, it showed that my api log is not ready ( api-log (0/1 ready)

my config.yaml

apiVersion: v1
kind: ConfigMap
metadata:
  name: api-dev-log-config
  namespace: fargate-api-dev
data:
   promtail.yaml: |
    server:
      log_level: info
      http_listen_port: 3101

    clients:
      - url: http://loki.logging:3100/loki/api/v1/push

    positions:
      filename: /run/promtail/positions.yaml

    scrape_configs:
      - job_name: api-log
        pipeline_stages:
        - cri: {}
        static_configs:
        - targets:
          - localhost
          labels:
            job: apilogs
            host: co2 
            __path__: /usr/local/jboss_api/standalone/log*.log

rbac.yaml

apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
  name: promtail-clusterrole
  namespace: fargate-api-dev
rules:
  - apiGroups: [""]
    resources:
    - nodes
    - services
    - pods
    verbs:
    - get
    - watch
    - list
---

apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: promtail-clusterrolebinding
  namespace: fargate-api-dev
subjects:
    - kind: ServiceAccount
      name: api-dev-sa
      namespace: default
roleRef:
    kind: ClusterRole
    name: promtail-clusterrole
    apiGroup: rbac.authorization.k8s.io

deployment.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  namespace: fargate-api-dev
  name: k8s-dev
spec:
  replicas: 1
  selector:
    matchLabels:
      app: k8s-dev
  template:
    metadata:
      labels:
        app: k8s-dev
    spec:
      volumes:
        - name: dev-properties
          configMap: 
            name: dev-properties
        - name: api-dev-log
          emptyDir: {}
        - name: run
          emptyDir: {}
        - name: promtail-config
          configMap:
            name: api-dev-log-config
      serviceAccount: api-dev-sa
      serviceAccountName: api-dev-sa

      containers:
        - name: promtail-container
          image: promtail:2.6.1
          args:
          - -config.file=/etc/promtail/promtail.yaml
          volumeMounts:
          - name: api-dev-log
            mountPath: /usr/local/jboss_api/standalone/log
            readOnly: false
          - name: promtail-config
            mountPath: /etc/promtail
            readOnly: false
          - name: run
            mountPath: /run/promtail
          imagePullPolicy: IfNotPresent
          resources:
            requests:
              memory: "500Mi"
              cpu: "200m"
            limits:
              memory: "500Mi"
              cpu: "200m"

        - name: k8s-api
          image: k8s-api:1.2.0
          ports:
            - containerPort: 8443
          resources:
            requests:
              memory: "2000Mi"
              cpu: "500m"
            limits:
              memory: "2000Mi"
              cpu: "500m"
          volumeMounts:
            - name: api-dev-log
              mountPath: /usr/local/jboss_api/standalone/log
              readOnly: false

Would be great if anyone can give me so hints to continue, thank you so much!