Mounted ConfigMap volume is not served entirely
ASP.NET Core SPA with external config in wwwroot/config/config.json
Contents of config.json:
{
"termsAndConditionsLink": "https://some-dev-url.with/legal/terms/"
}
When the file is not being overwritten by a ConfigMap, it works fine and I am able to get the full content of file.
curl https://dev-app.com/config/config.json
{
"termsAndConditionsLink": "https://some-dev-url.with/legal/terms/"
}
When ConfigMap data is mounted to this path with Volume, it is not returned entirely.
curl https://dev-app.com/config/config.json
{
"termsAndCon
The file is present in pod:
pwd
/app/wwwroot/config
ls -la
total 12
drwxrwxrwx 3 root root 4096 Nov 20 08:48 .
drwxr-xr-x 6 root root 4096 Nov 20 08:46 ..
drwxr-xr-x 2 root root 4096 Nov 20 08:48 ..2018_11_20_08_48_02.390652870
lrwxrwxrwx 1 root root 31 Nov 20 08:48 ..data -> ..2018_11_20_08_48_02.390652870
lrwxrwxrwx 1 root root 18 Nov 20 08:48 config.json -> ..data/config.json
cat config.json
{
"termsAndConditionsLink": "https://some-dev-url.with/legal/terms/"
}
ConfigMap.yaml
kind: ConfigMap
apiVersion: v1
metadata:
name: my-config
data:
config.json: |-
{
"termsAndConditionsLink": "https://some-dev-url.with/legal/terms/"
}
Deployment.yaml
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
name: my-app
labels:
...
spec:
template:
metadata:
labels:
...
spec:
containers:
...
volumeMounts:
- name: my-volume
mountPath: /app/wwwroot/config
volumes:
- name: my-volume
configMap:
name: my-config
kubernetes google-kubernetes-engine configmap asked Nov 21 '18 at 8:34
edbighead
41218
add a comment |
ASP.NET Core SPA with external config in wwwroot/config/config.json
Contents of config.json:
{
"termsAndConditionsLink": "https://some-dev-url.with/legal/terms/"
}
When the file is not being overwritten by a ConfigMap, it works fine and I am able to get the full content of file.
curl https://dev-app.com/config/config.json
{
"termsAndConditionsLink": "https://some-dev-url.with/legal/terms/"
}
When ConfigMap data is mounted to this path with Volume, it is not returned entirely.
curl https://dev-app.com/config/config.json
{
"termsAndCon
The file is present in pod:
pwd
/app/wwwroot/config
ls -la
total 12
drwxrwxrwx 3 root root 4096 Nov 20 08:48 .
drwxr-xr-x 6 root root 4096 Nov 20 08:46 ..
drwxr-xr-x 2 root root 4096 Nov 20 08:48 ..2018_11_20_08_48_02.390652870
lrwxrwxrwx 1 root root 31 Nov 20 08:48 ..data -> ..2018_11_20_08_48_02.390652870
lrwxrwxrwx 1 root root 18 Nov 20 08:48 config.json -> ..data/config.json
cat config.json
{
"termsAndConditionsLink": "https://some-dev-url.with/legal/terms/"
}
ConfigMap.yaml
kind: ConfigMap
apiVersion: v1
metadata:
name: my-config
data:
config.json: |-
{
"termsAndConditionsLink": "https://some-dev-url.with/legal/terms/"
}
Deployment.yaml
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
name: my-app
labels:
...
spec:
template:
metadata:
labels:
...
spec:
containers:
...
volumeMounts:
- name: my-volume
mountPath: /app/wwwroot/config
volumes:
- name: my-volume
configMap:
name: my-config
asked Nov 21 '18 at 8:34
edbighead
41218
add a comment |
ASP.NET Core SPA with external config in wwwroot/config/config.json
Contents of config.json:
{
"termsAndConditionsLink": "https://some-dev-url.with/legal/terms/"
}
When the file is not being overwritten by a ConfigMap, it works fine and I am able to get the full content of file.
curl https://dev-app.com/config/config.json
{
"termsAndConditionsLink": "https://some-dev-url.with/legal/terms/"
}
When ConfigMap data is mounted to this path with Volume, it is not returned entirely.
curl https://dev-app.com/config/config.json
{
"termsAndCon
The file is present in pod:
pwd
/app/wwwroot/config
ls -la
total 12
drwxrwxrwx 3 root root 4096 Nov 20 08:48 .
drwxr-xr-x 6 root root 4096 Nov 20 08:46 ..
drwxr-xr-x 2 root root 4096 Nov 20 08:48 ..2018_11_20_08_48_02.390652870
lrwxrwxrwx 1 root root 31 Nov 20 08:48 ..data -> ..2018_11_20_08_48_02.390652870
lrwxrwxrwx 1 root root 18 Nov 20 08:48 config.json -> ..data/config.json
cat config.json
{
"termsAndConditionsLink": "https://some-dev-url.with/legal/terms/"
}
ConfigMap.yaml
kind: ConfigMap
apiVersion: v1
metadata:
name: my-config
data:
config.json: |-
{
"termsAndConditionsLink": "https://some-dev-url.with/legal/terms/"
}
Deployment.yaml
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
name: my-app
labels:
...
spec:
template:
metadata:
labels:
...
spec:
containers:
...
volumeMounts:
- name: my-volume
mountPath: /app/wwwroot/config
volumes:
- name: my-volume
configMap:
name: my-config
asked Nov 21 '18 at 8:34
edbighead
41218
ASP.NET Core SPA with external config in wwwroot/config/config.json
Contents of config.json:
{
"termsAndConditionsLink": "https://some-dev-url.with/legal/terms/"
}
When the file is not being overwritten by a ConfigMap, it works fine and I am able to get the full content of file.
curl https://dev-app.com/config/config.json
{
"termsAndConditionsLink": "https://some-dev-url.with/legal/terms/"
}
When ConfigMap data is mounted to this path with Volume, it is not returned entirely.
curl https://dev-app.com/config/config.json
{
"termsAndCon
The file is present in pod:
pwd
/app/wwwroot/config
ls -la
total 12
drwxrwxrwx 3 root root 4096 Nov 20 08:48 .
drwxr-xr-x 6 root root 4096 Nov 20 08:46 ..
drwxr-xr-x 2 root root 4096 Nov 20 08:48 ..2018_11_20_08_48_02.390652870
lrwxrwxrwx 1 root root 31 Nov 20 08:48 ..data -> ..2018_11_20_08_48_02.390652870
lrwxrwxrwx 1 root root 18 Nov 20 08:48 config.json -> ..data/config.json
cat config.json
{
"termsAndConditionsLink": "https://some-dev-url.with/legal/terms/"
}
ConfigMap.yaml
kind: ConfigMap
apiVersion: v1
metadata:
name: my-config
data:
config.json: |-
{
"termsAndConditionsLink": "https://some-dev-url.with/legal/terms/"
}
Deployment.yaml
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
name: my-app
labels:
...
spec:
template:
metadata:
labels:
...
spec:
containers:
...
volumeMounts:
- name: my-volume
mountPath: /app/wwwroot/config
volumes:
- name: my-volume
configMap:
name: my-config
asked Nov 21 '18 at 8:34
edbighead
41218
asked Nov 21 '18 at 8:34
edbighead
41218
asked Nov 21 '18 at 8:34
edbighead
41218
asked Nov 21 '18 at 8:34
edbighead
41218
asked Nov 21 '18 at 8:34
edbighead
41218
41218
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
Do you mean that any other files in the /app/wwwroot/config directory are gone when mounting a volume at that location from the ConfigMap?
Have you tried projected volume:
volumes:
- name: my-volume
projected:
sources:
- configMap:
name: my-config
EDIT: For those that may come across such problem and don't read through the messages below the posts - after exchanging messages with @edbighead, another suggestion was to use subPath in the Deployment to leave the config directory writeable as ConfigMap volume mounts are read-only:
mountPath: /app/wwwroot/config/config.json
subPath: config.json
That apparently solved the problem.
answered Nov 21 '18 at 21:53
apisim
4576
There's only one file in this directory, the original/app/wwwroot/config/config.json, and when it's overwritten by configmap (to use the same image but different configs on different environments), it's not served entirely by kestrel, but only first 15 chars.
– edbighead
Nov 22 '18 at 6:58
@edbighead - I apparently didn't read thoroughly the whole question and you've provided good level of details. It is a strange behavior. Notice it is probably 16 characters, counting a new line character. Maybe it is just in the question but the ConfigMap's content is the same as in the original config.json. What do you see when the ConfigMap is something totally different? Also, it may be worth trying to use in the DeploymentmountPath: /app/wwwroot/config/config.jsonand addsubPath: config.json- this will leave theconfigdirectory writeable as ConfigMap volume mounts are read-only.
– apisim
Nov 22 '18 at 17:32
Thanks, specifying subpath resolved the problem. This is still very strange behavior though.
– edbighead
Nov 23 '18 at 10:00
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
Do you mean that any other files in the /app/wwwroot/config directory are gone when mounting a volume at that location from the ConfigMap?
Have you tried projected volume:
volumes:
- name: my-volume
projected:
sources:
- configMap:
name: my-config
EDIT: For those that may come across such problem and don't read through the messages below the posts - after exchanging messages with @edbighead, another suggestion was to use subPath in the Deployment to leave the config directory writeable as ConfigMap volume mounts are read-only:
mountPath: /app/wwwroot/config/config.json
subPath: config.json
That apparently solved the problem.
answered Nov 21 '18 at 21:53
apisim
4576
There's only one file in this directory, the original/app/wwwroot/config/config.json, and when it's overwritten by configmap (to use the same image but different configs on different environments), it's not served entirely by kestrel, but only first 15 chars.
– edbighead
Nov 22 '18 at 6:58
@edbighead - I apparently didn't read thoroughly the whole question and you've provided good level of details. It is a strange behavior. Notice it is probably 16 characters, counting a new line character. Maybe it is just in the question but the ConfigMap's content is the same as in the original config.json. What do you see when the ConfigMap is something totally different? Also, it may be worth trying to use in the DeploymentmountPath: /app/wwwroot/config/config.jsonand addsubPath: config.json- this will leave theconfigdirectory writeable as ConfigMap volume mounts are read-only.
– apisim
Nov 22 '18 at 17:32
Thanks, specifying subpath resolved the problem. This is still very strange behavior though.
– edbighead
Nov 23 '18 at 10:00
add a comment |
Do you mean that any other files in the /app/wwwroot/config directory are gone when mounting a volume at that location from the ConfigMap?
Have you tried projected volume:
volumes:
- name: my-volume
projected:
sources:
- configMap:
name: my-config
EDIT: For those that may come across such problem and don't read through the messages below the posts - after exchanging messages with @edbighead, another suggestion was to use subPath in the Deployment to leave the config directory writeable as ConfigMap volume mounts are read-only:
mountPath: /app/wwwroot/config/config.json
subPath: config.json
That apparently solved the problem.
answered Nov 21 '18 at 21:53
apisim
4576
There's only one file in this directory, the original/app/wwwroot/config/config.json, and when it's overwritten by configmap (to use the same image but different configs on different environments), it's not served entirely by kestrel, but only first 15 chars.
– edbighead
Nov 22 '18 at 6:58
@edbighead - I apparently didn't read thoroughly the whole question and you've provided good level of details. It is a strange behavior. Notice it is probably 16 characters, counting a new line character. Maybe it is just in the question but the ConfigMap's content is the same as in the original config.json. What do you see when the ConfigMap is something totally different? Also, it may be worth trying to use in the DeploymentmountPath: /app/wwwroot/config/config.jsonand addsubPath: config.json- this will leave theconfigdirectory writeable as ConfigMap volume mounts are read-only.
– apisim
Nov 22 '18 at 17:32
Thanks, specifying subpath resolved the problem. This is still very strange behavior though.
– edbighead
Nov 23 '18 at 10:00
add a comment |
Do you mean that any other files in the /app/wwwroot/config directory are gone when mounting a volume at that location from the ConfigMap?
Have you tried projected volume:
volumes:
- name: my-volume
projected:
sources:
- configMap:
name: my-config
EDIT: For those that may come across such problem and don't read through the messages below the posts - after exchanging messages with @edbighead, another suggestion was to use subPath in the Deployment to leave the config directory writeable as ConfigMap volume mounts are read-only:
mountPath: /app/wwwroot/config/config.json
subPath: config.json
That apparently solved the problem.
answered Nov 21 '18 at 21:53
apisim
4576
Do you mean that any other files in the /app/wwwroot/config directory are gone when mounting a volume at that location from the ConfigMap?
Have you tried projected volume:
volumes:
- name: my-volume
projected:
sources:
- configMap:
name: my-config
EDIT: For those that may come across such problem and don't read through the messages below the posts - after exchanging messages with @edbighead, another suggestion was to use subPath in the Deployment to leave the config directory writeable as ConfigMap volume mounts are read-only:
mountPath: /app/wwwroot/config/config.json
subPath: config.json
That apparently solved the problem.
answered Nov 21 '18 at 21:53
apisim
4576
edited Nov 23 '18 at 13:55
answered Nov 21 '18 at 21:53
apisim
4576
answered Nov 21 '18 at 21:53
apisim
4576
answered Nov 21 '18 at 21:53
apisim
4576
4576
There's only one file in this directory, the original/app/wwwroot/config/config.json, and when it's overwritten by configmap (to use the same image but different configs on different environments), it's not served entirely by kestrel, but only first 15 chars.
– edbighead
Nov 22 '18 at 6:58
@edbighead - I apparently didn't read thoroughly the whole question and you've provided good level of details. It is a strange behavior. Notice it is probably 16 characters, counting a new line character. Maybe it is just in the question but the ConfigMap's content is the same as in the original config.json. What do you see when the ConfigMap is something totally different? Also, it may be worth trying to use in the DeploymentmountPath: /app/wwwroot/config/config.jsonand addsubPath: config.json- this will leave theconfigdirectory writeable as ConfigMap volume mounts are read-only.
– apisim
Nov 22 '18 at 17:32
Thanks, specifying subpath resolved the problem. This is still very strange behavior though.
– edbighead
Nov 23 '18 at 10:00
add a comment |
There's only one file in this directory, the original/app/wwwroot/config/config.json, and when it's overwritten by configmap (to use the same image but different configs on different environments), it's not served entirely by kestrel, but only first 15 chars.
– edbighead
Nov 22 '18 at 6:58
@edbighead - I apparently didn't read thoroughly the whole question and you've provided good level of details. It is a strange behavior. Notice it is probably 16 characters, counting a new line character. Maybe it is just in the question but the ConfigMap's content is the same as in the original config.json. What do you see when the ConfigMap is something totally different? Also, it may be worth trying to use in the DeploymentmountPath: /app/wwwroot/config/config.jsonand addsubPath: config.json- this will leave theconfigdirectory writeable as ConfigMap volume mounts are read-only.
– apisim
Nov 22 '18 at 17:32
Thanks, specifying subpath resolved the problem. This is still very strange behavior though.
– edbighead
Nov 23 '18 at 10:00
There's only one file in this directory, the original
/app/wwwroot/config/config.json, and when it's overwritten by configmap (to use the same image but different configs on different environments), it's not served entirely by kestrel, but only first 15 chars.– edbighead
Nov 22 '18 at 6:58
There's only one file in this directory, the original
/app/wwwroot/config/config.json, and when it's overwritten by configmap (to use the same image but different configs on different environments), it's not served entirely by kestrel, but only first 15 chars.– edbighead
Nov 22 '18 at 6:58
@edbighead - I apparently didn't read thoroughly the whole question and you've provided good level of details. It is a strange behavior. Notice it is probably 16 characters, counting a new line character. Maybe it is just in the question but the ConfigMap's content is the same as in the original config.json. What do you see when the ConfigMap is something totally different? Also, it may be worth trying to use in the Deployment
mountPath: /app/wwwroot/config/config.json and add subPath: config.json - this will leave the config directory writeable as ConfigMap volume mounts are read-only.– apisim
Nov 22 '18 at 17:32
@edbighead - I apparently didn't read thoroughly the whole question and you've provided good level of details. It is a strange behavior. Notice it is probably 16 characters, counting a new line character. Maybe it is just in the question but the ConfigMap's content is the same as in the original config.json. What do you see when the ConfigMap is something totally different? Also, it may be worth trying to use in the Deployment
mountPath: /app/wwwroot/config/config.json and add subPath: config.json - this will leave the config directory writeable as ConfigMap volume mounts are read-only.– apisim
Nov 22 '18 at 17:32
Thanks, specifying subpath resolved the problem. This is still very strange behavior though.
– edbighead
Nov 23 '18 at 10:00
Thanks, specifying subpath resolved the problem. This is still very strange behavior though.
– edbighead
Nov 23 '18 at 10:00
add a comment |
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