[英]How to see Pod logs: a container name must be specified for pod… choose one of: [wait main]
我正在運行 Argo 工作流程並在 pod 的日志中收到以下錯誤:
error: a container name must be specified for pod <name>, choose one of: [wait main]
此錯誤僅在某些時候發生,並且僅在我的一些模板中發生,但是當它發生時,它是在工作流中稍后運行的模板(即不是第一個模板運行)。 我還不能確定將成功運行的參數,所以我會對調試提示感到滿意。 我已經粘貼了下面描述的 output。
根據搜索,我認為解決方案很簡單,就是我需要在某處附加“-c main”,但我不知道在哪里,也無法在 Argo 文檔中找到信息。
描述:
Name: message-passing-1-q8jgn-607612432
Namespace: argo
Priority: 0
Node: REDACTED
Start Time: Wed, 17 Mar 2021 17:16:37 +0000
Labels: workflows.argoproj.io/completed=false
workflows.argoproj.io/workflow=message-passing-1-q8jgn
Annotations: cni.projectcalico.org/podIP: 192.168.40.140/32
cni.projectcalico.org/podIPs: 192.168.40.140/32
workflows.argoproj.io/node-name: message-passing-1-q8jgn.e
workflows.argoproj.io/outputs: {"exitCode":"6"}
workflows.argoproj.io/template:
{"name":"egress","arguments":{},"inputs":{...
Status: Failed
IP: 192.168.40.140
IPs:
IP: 192.168.40.140
Controlled By: Workflow/message-passing-1-q8jgn
Containers:
wait:
Container ID: docker://26d6c30440777add2af7ef3a55474d9ff36b8c562d7aecfb911ce62911e5fda3
Image: argoproj/argoexec:v2.12.10
Image ID: docker-pullable://argoproj/argoexec@sha256:6edb85a84d3e54881404d1113256a70fcc456ad49c6d168ab9dfc35e4d316a60
Port: <none>
Host Port: <none>
Command:
argoexec
wait
State: Terminated
Reason: Completed
Exit Code: 0
Started: Wed, 17 Mar 2021 17:16:43 +0000
Finished: Wed, 17 Mar 2021 17:17:03 +0000
Ready: False
Restart Count: 0
Environment:
ARGO_POD_NAME: message-passing-1-q8jgn-607612432 (v1:metadata.name)
Mounts:
/argo/podmetadata from podmetadata (rw)
/mainctrfs/mnt/logs from log-p1-vol (rw)
/mainctrfs/mnt/processed from processed-p1-vol (rw)
/var/run/docker.sock from docker-sock (ro)
/var/run/secrets/kubernetes.io/serviceaccount from argo-token-v2w56 (ro)
main:
Container ID: docker://67e6d6d3717ab1080f14cac6655c90d990f95525edba639a2d2c7b3170a7576e
Image: REDACTED
Image ID: REDACTED
Port: <none>
Host Port: <none>
Command:
/bin/bash
-c
Args:
State: Terminated
Reason: Error
Exit Code: 6
Started: Wed, 17 Mar 2021 17:16:43 +0000
Finished: Wed, 17 Mar 2021 17:17:03 +0000
Ready: False
Restart Count: 0
Environment: <none>
Mounts:
/mnt/logs/ from log-p1-vol (rw)
/mnt/processed/ from processed-p1-vol (rw)
/var/run/secrets/kubernetes.io/serviceaccount from argo-token-v2w56 (ro)
Conditions:
Type Status
Initialized True
Ready False
ContainersReady False
PodScheduled True
Volumes:
podmetadata:
Type: DownwardAPI (a volume populated by information about the pod)
Items:
metadata.annotations -> annotations
docker-sock:
Type: HostPath (bare host directory volume)
Path: /var/run/docker.sock
HostPathType: Socket
processed-p1-vol:
Type: PersistentVolumeClaim (a reference to a PersistentVolumeClaim in the same namespace)
ClaimName: message-passing-1-q8jgn-processed-p1-vol
ReadOnly: false
log-p1-vol:
Type: PersistentVolumeClaim (a reference to a PersistentVolumeClaim in the same namespace)
ClaimName: message-passing-1-q8jgn-log-p1-vol
ReadOnly: false
argo-token-v2w56:
Type: Secret (a volume populated by a Secret)
SecretName: argo-token-v2w56
Optional: false
QoS Class: BestEffort
Node-Selectors: <none>
Tolerations: node.kubernetes.io/not-ready:NoExecute op=Exists for 300s
node.kubernetes.io/unreachable:NoExecute op=Exists for 300s
Events:
Type Reason Age From Message
---- ------ ---- ---- -------
Normal Scheduled 7m35s default-scheduler Successfully assigned argo/message-passing-1-q8jgn-607612432 to ack1
Normal Pulled 7m31s kubelet Container image "argoproj/argoexec:v2.12.10" already present on machine
Normal Created 7m31s kubelet Created container wait
Normal Started 7m30s kubelet Started container wait
Normal Pulled 7m30s kubelet Container image already present on machine
Normal Created 7m30s kubelet Created container main
Normal Started 7m30s kubelet Started container main
當您嘗試查看具有多個容器的 pod 的日志並且未指定要查看日志的容器時,就會發生這種情況。 查看日志的典型命令:
kubectl logs <podname>
但是您的 Pod 有兩個容器,一個名為“wait”,一個名為“main”。 您可以從名為“main”的容器中查看日志:
kubectl logs <podname> -c main
或者您可以使用以下命令查看所有容器的日志
kubectl logs <podname> --all-containers
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