如何查看 Pod 日志:必须为 pod 指定容器名称...选择其中一项:[wait main]
How to see Pod logs: a container name must be specified for pod... choose one of: [wait main]
我正在 运行 运行 Argo 工作流并在 pod 的日志中收到以下错误:
error: a container name must be specified for pod <name>, choose one of: [wait main]
这个错误只在某些时候发生,并且只发生在我的一些模板中,但当它发生时,它是工作流程中 运行 后面的模板(即不是第一个模板 运行).我还不能确定 运行 成功的参数,所以我很乐意提供调试提示。我在下面粘贴了描述的输出。
根据搜索,我认为解决方案很简单,就是我需要在某处附加“-c main”,但我不知道在哪里,也无法在 Argo 文档中找到信息。
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
当您尝试查看具有多个容器的 pod 的日志但未指定要查看日志的容器时,就会发生这种情况。查看日志的典型命令:
kubectl logs <podname>
但是您的 Pod 有两个容器,一个名为“wait”,一个名为“main”。您可以从名为“main”的容器中查看日志:
kubectl logs <podname> -c main
或者您可以通过
查看所有容器的日志
kubectl logs <podname> --all-containers
我正在 运行 运行 Argo 工作流并在 pod 的日志中收到以下错误:
error: a container name must be specified for pod <name>, choose one of: [wait main]
这个错误只在某些时候发生,并且只发生在我的一些模板中,但当它发生时,它是工作流程中 运行 后面的模板(即不是第一个模板 运行).我还不能确定 运行 成功的参数,所以我很乐意提供调试提示。我在下面粘贴了描述的输出。
根据搜索,我认为解决方案很简单,就是我需要在某处附加“-c main”,但我不知道在哪里,也无法在 Argo 文档中找到信息。
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
当您尝试查看具有多个容器的 pod 的日志但未指定要查看日志的容器时,就会发生这种情况。查看日志的典型命令:
kubectl logs <podname>
但是您的 Pod 有两个容器,一个名为“wait”,一个名为“main”。您可以从名为“main”的容器中查看日志:
kubectl logs <podname> -c main
或者您可以通过
查看所有容器的日志kubectl logs <podname> --all-containers