injected pod has no volume and hostPid property

[zhangjianweibj]

hello ,i run k8s-sidecar-injector use yamls in example directory .then i modify debug-pod.yaml file:

and sidercar configmap:

then describe pod：

no volumounts hostnetwork and hostPid property. why?

[zhangjianweibj]

modify sidecar-confimg.yaml file,bu still no mounts

---

apiVersion: v1 kind: ConfigMap metadata: name: sidecar-telegraf-basic namespace: monitoring labels: app: k8s-sidecar-injector track: prod data: sidecar-telegraf-basic: | name: sidecar-telegraf-basic hostNetwork: true hostPID: true containers:

• name: telegraf-basic image: registry.icp.com:5000/service/lma/mcp-telegraf:0.1
  imagePullPolicy: IfNotPresent ports:
  • containerPort: 9126 volumeMounts:
  • name: telegraf-basic-directory mountPath: /etc/telegraf volumes:

• name: telegraf-basic-directory configMap: name: telegraf-basic-config

  configmap

  apiVersion: v1 kind: ConfigMap metadata: name: telegraf-basic-config namespace: monitoring data: telegraf.conf: | [global_tags] [agent] interval = "15s" round_interval = false metric_batch_size = 1000 metric_buffer_limit = 10000 collection_jitter = "2s"

[zhangjianweibj]

---
apiVersion: v1
kind: ConfigMap
metadata:
  name: sidecar-telegraf-basic
  namespace: monitoring
  labels:
    app: k8s-sidecar-injector
    track: prod
data:
  sidecar-telegraf-basic: |
    name: sidecar-telegraf-basic
    hostNetwork: true
    hostPID: true
    containers:
    - name: telegraf-basic
      image: registry.icp.com:5000/service/lma/mcp-telegraf:0.1   
      imagePullPolicy: IfNotPresent
      ports:
        - containerPort: 9126
      volumeMounts:
        - name: telegraf-basic-directory
          mountPath: /etc/telegraf
    volumes:
    - name: telegraf-basic-directory
      configMap:
        name: telegraf-basic-config
---
# configmap
apiVersion: v1
kind: ConfigMap
metadata:
  name: telegraf-basic-config
  namespace: monitoring
data:
  telegraf.conf: |
    [global_tags]
    [agent]
      interval = "15s"
      round_interval = false
      metric_batch_size = 1000
      metric_buffer_limit = 10000
      collection_jitter = "2s"

[byxorna]

hi @zhangjianweibj

If you look at the full kubectl describe pod/... output for the created pod, there should be an annotation added indicating whether or not the injector was able to successfully modify your pod. If the annotation is not present, it points to a misconfiguration in your K8s mutating webhook configuration. If the annotation is present and says it succeeded, that makes me think there is a configuration issue in your ConfigMap - perhaps keys for Volumes at the wrong level, or something?

Please include the logs from the injector's startup - it will tell you how many volumes/containers/env vars it has loaded for each sidecar config. This is a good litmus test to confirm the sidecar injector is reading your configuration properly.

[zhangjianweibj]

ok，very thanks。