ajanikowski opened a new issue #4960:
URL: https://github.com/apache/openwhisk/issues/4960
## Description
Invoker cannot retrieve "user-action" container logs in presence of one or
more sidecar container in the pod function.
Returned logs are always empty even if the function write on stdout/stderr.
## Environment details:
* on-cloud deployment on AKS
## Steps to reproduce the issue:
1. Deploy openwhisk using the pod-template feature to inject a sidecar
container:
1.a Create a ConfigMap like this:
```
apiVersion: v1
kind: ConfigMap
metadata:
name: {{ .Release.Name }}-invoker-template
labels:
{{ include "openwhisk.label_boilerplate" .| indent 4 }}
data:
podTemplate.yaml: |
apiVersion: v1
kind: Pod
spec:
- name: "sidecar"
imagePullPolicy: "IfNotPresent"
image: "busybox:latest"
command: [ "/bin/sh", "-c", "--" ]
args: [ "while true; do echo 'running...'; sleep 30; done;" ]
```
1.b Include the _CONFIG_whisk_kubernetes_podTemplate_ variable into invoker
chart _helm/openwhisk/templates/invoker-pod.yaml_
```
...
volumes:
- name: pod-template-dir
configMap:
name: {{ .Release.Name }}-invoker-template
...
containers:
- name: invoker
...
env:
- name: "CONFIG_whisk_kubernetes_podTemplate"
value: "file:/invoker-template/podTemplate.yaml"
...
```
2. Run an every function that writes on stdout
## Provide the expected results and outputs:
Logs are not empty using wsk or other trigger method.
```
user@ubuntu:~$ wsk -i action invoke greeting
ok: invoked /_/greeting with id fc5a778ce1aa43579a778ce1aa7357fd
user@ubuntu:~$ wsk -i activation get fc5a778ce1aa43579a778ce1aa7357fd
ok: got activation fc5a778ce1aa43579a778ce1aa7357fd
{
"namespace": "guest",
"name": "greeting",
"version": "0.0.1",
"subject": "guest",
"activationId": "fc5a778ce1aa43579a778ce1aa7357fd",
"start": 1599165480554,
"end": 1599165480558,
"duration": 4,
"statusCode": 0,
"response": {
"status": "success",
"statusCode": 0,
"success": true,
"result": {
"greeting": "Hello stranger!"
}
},
"logs": [
"2020-09-03T20:38:00.556443838Z stdout: Hello stranger!"
],
"annotations": [
{
"key": "path",
"value": "guest/greeting"
},
{
"key": "waitTime",
"value": 12
},
{
"key": "kind",
"value": "python:3"
},
{
"key": "timeout",
"value": false
},
{
"key": "limits",
"value": {
"concurrency": 100,
"logs": 10,
"memory": 128,
"timeout": 3600000
}
}
],
"publish": false
}
```
## Provide the actual results and outputs:
Logs are always empty.
```
user@ubuntu:~$ wsk -i action invoke greeting
ok: invoked /_/greeting with id 7542b42b84e349b482b42b84e389b4bf
user@ubuntu:~$ wsk -i activation get 7542b42b84e349b482b42b84e389b4bf
ok: got activation 7542b42b84e349b482b42b84e389b4bf
{
"namespace": "guest",
"name": "greeting",
"version": "0.0.1",
"subject": "guest",
"activationId": "7542b42b84e349b482b42b84e389b4bf",
"start": 1599165671500,
"end": 1599165671507,
"duration": 7,
"statusCode": 0,
"response": {
"status": "success",
"statusCode": 0,
"success": true,
"result": {
"greeting": "Hello stranger!"
}
},
"logs": [],
"annotations": [
{
"key": "path",
"value": "guest/greeting"
},
{
"key": "waitTime",
"value": 22
},
{
"key": "kind",
"value": "python:3"
},
{
"key": "timeout",
"value": false
},
{
"key": "limits",
"value": {
"concurrency": 100,
"logs": 10,
"memory": 128,
"timeout": 3600000
}
}
],
"publish": false
}
```
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