Hi Rodrigo,
Thanks for the reply
First of all this is stable external image and I dont want to maintain my
version.
Secondly, the values that I would like to get are created during my
deployment (ingress external host urls) and I can only map them during
container initializing.
What i tried in 1st option is trying to create environment variable with
the value of executing the command $(eval cat <PATH>)
Here is the block I am trying in statefulset
- name: KAFKA_ADVERTISED_LISTENERS
value: INSIDE://$(POD_IP):9092,OUTSIDE://$(eval cat /opt/conf/ext-url):9093
And ext-url is mounted via dynamic configMaps
- name: cm-vol
configMap:
name: kafka-0
items:
- key: kafka-ext-host
path: ext-host
Note: I went to this direction after observing that reading from dynamic
configMap is not working
valueFrom:
configMapKeyRef:
key: kafka-ext-host
name: $(POD_NAME) . --> Kubernetes giving error to here
So the question is that, can I use "cat <PATH>" command to environment
variable ?
I hope it is little bit clear now :) Sorry for the mess
Regards,
On Friday, August 17, 2018 at 8:11:15 PM UTC-4, Rodrigo Campos wrote:
>
> Sorry, what is thing number 1 you tried? Is that in the yaml or where? Not
> sure what you mean
>
> As a hack, can't you change your docker file to do on startup (CMD):
> export var=$(...); ./your-app ? Does it work?
>
> Probably, he simplest thing might be for the app to read the proper
> variable using it's host name. I think that would be the best, bit you can
> try the hack above in the meantime or to experiment :-)
>
> On Friday, August 17, 2018, ilter P <ilterp...@gmail.com <javascript:>>
> wrote:
>
>> Hi,
>>
>> I have statefulset which has specific configuration for each host.
>> I created different Configmap with each hostname and mounted them under
>> the path with the hostnames as following:
>> <STATIC_PATH>/$(HOSTNAME)/<STATIC_PATH
>>
>> Now I need to pass this into a configuration file like:
>>
>> Variable inside the conf file**
>>
>> OUTSIDE://*<VALUE_FROM_THE_MOUNTED_FILE>*
>>
>> *I tried following options:*
>>
>> *1- OUTSIDE://$(eval cat <PATH>) . --> did not work*
>> *2- exported another env variable from initContainer --> did not work*
>>
>> *Is there a way to set environment variables by using a command as:*
>> *- name: ENV_VARIABLE*
>> * valueFrom:*
>> * command:*
>> * - sh*
>> * - export X=`cat <PATH>`*
>>
>> *Please help*
>>
>> *Thanks*
>>
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