在GKE中，我有一个带有两个容器的pod。他们使用相同的图像，唯一的区别是我传递了略微不同的标志。一个运行正常，另一个运行崩溃循环。如何调试失败的原因？
我的pod定义是
apiVersion: v1
kind: ReplicationController
metadata:
name: doorman-client
spec:
replicas: 10
selector:
app: doorman-client
template:
metadata:
name: doorman-client
labels:
app: doorman-client
spec:
containers:
- name: doorman-client-proportional
resources:
limits:
cpu: 10m
image: gcr.io/google.com/doorman/doorman-client:v0.1.1
command:
- client
- -port=80
- -count=50
- -initial_capacity=15
- -min_capacity=5
- -max_capacity=2000
- -increase_chance=0.1
- -decrease_chance=0.05
- -step=5
- -resource=proportional
- -addr=$(DOORMAN_SERVICE_HOST):$(DOORMAN_SERVICE_PORT_GRPC)
- -vmodule=doorman_client=2
- --logtostderr
ports:
- containerPort: 80
name: http
- name: doorman-client-fair
resources:
limits:
cpu: 10m
image: gcr.io/google.com/doorman/doorman-client:v0.1.1
command:
- client
- -port=80
- -count=50
- -initial_capacity=15
- -min_capacity=5
- -max_capacity=2000
- -increase_chance=0.1
- -decrease_chance=0.05
- -step=5
- -resource=fair
- -addr=$(DOORMAN_SERVICE_HOST):$(DOORMAN_SERVICE_PORT_GRPC)
- -vmodule=doorman_client=2
- --logtostderr
ports:
- containerPort: 80
name: http
kubectl describe给了我以下内容：
6:06 [0] (szopa szopa-macbookpro):~/GOPATH/src/github.com/youtube/doorman$ kubectl describe pod doorman-client-tylba
Name: doorman-client-tylba
Namespace: default
Image(s): gcr.io/google.com/doorman/doorman-client:v0.1.1,gcr.io/google.com/doorman/doorman-client:v0.1.1
Node: gke-doorman-loadtest-d75f7d0f-node-k9g6/10.240.0.4
Start Time: Sun, 21 Feb 2016 16:05:42 +0100
Labels: app=doorman-client
Status: Running
Reason:
Message:
IP: 10.128.4.182
Replication Controllers: doorman-client (10/10 replicas created)
Containers:
doorman-client-proportional:
Container ID: docker://0bdcb8269c5d15a4f99ccc0b0ee04bf3e9fd0db9fd23e9c0661e06564e9105f7
Image: gcr.io/google.com/doorman/doorman-client:v0.1.1
Image ID: docker://a603248608898591c84216dd3172aaa7c335af66a57fe50fd37a42394d5631dc
QoS Tier:
cpu: Guaranteed
Limits:
cpu: 10m
Requests:
cpu: 10m
State: Running
Started: Sun, 21 Feb 2016 16:05:42 +0100
Ready: True
Restart Count: 0
Environment Variables:
doorman-client-fair:
Container ID: docker://92fea92f1307b943d0ea714441417d4186c5ac6a17798650952ea726d18dba68
Image: gcr.io/google.com/doorman/doorman-client:v0.1.1
Image ID: docker://a603248608898591c84216dd3172aaa7c335af66a57fe50fd37a42394d5631dc
QoS Tier:
cpu: Guaranteed
Limits:
cpu: 10m
Requests:
cpu: 10m
State: Running
Started: Sun, 21 Feb 2016 16:06:03 +0100
Last Termination State: Terminated
Reason: Error
Exit Code: 0
Started: Sun, 21 Feb 2016 16:05:43 +0100
Finished: Sun, 21 Feb 2016 16:05:44 +0100
Ready: False
Restart Count: 2
Environment Variables:
Conditions:
Type Status
Ready False
Volumes:
default-token-ihani:
Type: Secret (a secret that should populate this volume)
SecretName: default-token-ihani
Events:
FirstSeen LastSeen Count From SubobjectPath Reason Message
───────── ──────── ───── ──── ───────────── ────── ───────
29s 29s 1 {scheduler } Scheduled Successfully assigned doorman-client-tylba to gke-doorman-loadtest-d75f7d0f-node-k9g6
29s 29s 1 {kubelet gke-doorman-loadtest-d75f7d0f-node-k9g6} implicitly required container POD Pulled Container image "gcr.io/google_containers/pause:0.8.0" already present on machine
29s 29s 1 {kubelet gke-doorman-loadtest-d75f7d0f-node-k9g6} implicitly required container POD Created Created with docker id 5013851c67d9
29s 29s 1 {kubelet gke-doorman-loadtest-d75f7d0f-node-k9g6} implicitly required container POD Started Started with docker id 5013851c67d9
29s 29s 1 {kubelet gke-doorman-loadtest-d75f7d0f-node-k9g6} spec.containers{doorman-client-proportional} Created Created with docker id 0bdcb8269c5d
29s 29s 1 {kubelet gke-doorman-loadtest-d75f7d0f-node-k9g6} spec.containers{doorman-client-proportional} Started Started with docker id 0bdcb8269c5d
29s 29s 1 {kubelet gke-doorman-loadtest-d75f7d0f-node-k9g6} spec.containers{doorman-client-fair} Created Created with docker id ed0928176958
29s 29s 1 {kubelet gke-doorman-loadtest-d75f7d0f-node-k9g6} spec.containers{doorman-client-fair} Started Started with docker id ed0928176958
28s 28s 1 {kubelet gke-doorman-loadtest-d75f7d0f-node-k9g6} spec.containers{doorman-client-fair} Created Created with docker id 0a73290085b6
28s 28s 1 {kubelet gke-doorman-loadtest-d75f7d0f-node-k9g6} spec.containers{doorman-client-fair} Started Started with docker id 0a73290085b6
18s 18s 1 {kubelet gke-doorman-loadtest-d75f7d0f-node-k9g6} spec.containers{doorman-client-fair} Backoff Back-off restarting failed docker container
8s 8s 1 {kubelet gke-doorman-loadtest-d75f7d0f-node-k9g6} spec.containers{doorman-client-fair} Started Started with docker id 92fea92f1307
29s 8s 4 {kubelet gke-doorman-loadtest-d75f7d0f-node-k9g6} spec.containers{doorman-client-fair} Pulled Container image "gcr.io/google.com/doorman/doorman-client:v0.1.1" already present on machine
8s 8s 1 {kubelet gke-doorman-loadtest-d75f7d0f-node-k9g6} spec.containers{doorman-client-fair} Created Created with docker id 92fea92f1307
正如您所看到的，退出代码为零，消息为“错误”，这不是非常有用。
我试过了：
更改定义的顺序（第一个总是运行，第二个总是失败）。
将使用的端口更改为不同（无效）
将端口名称更改为不同（无效）。