Reading secrets from inside a container app

Peter Hultqvist 21 Reputation points
2021-11-29T09:57:16.397+00:00

I'm running a linux container with Azure Container Apps(Preview).

The secrets are defined in the Azure portal.
153248-image.png

How can I access these secrets from inside the container?
They don't appear as environment variables.
There is no /mnt/secrets directory.

There is a /var/run/secrets and /run/secrets, both containing the following items.
But no one of the defined keys from the portal is listed here.

/var/run/secrets/kubernetes.io/serviceaccount/..2021_11_29_11_47_27.967096074/namespace	  
/var/run/secrets/kubernetes.io/serviceaccount/..2021_11_29_11_47_27.967096074/token	  
/var/run/secrets/kubernetes.io/serviceaccount/..2021_11_29_11_47_27.967096074/ca.crt	  
/var/run/secrets/kubernetes.io/serviceaccount/..data/namespace	  
/var/run/secrets/kubernetes.io/serviceaccount/..data/ca.crt	  
/var/run/secrets/kubernetes.io/serviceaccount/..data/token	  
/var/run/secrets/kubernetes.io/serviceaccount/ca.crt	  
/var/run/secrets/kubernetes.io/serviceaccount/namespace	  
/var/run/secrets/kubernetes.io/serviceaccount/token  

The key for the secrets was required to be lowercase only which might indicate that this is some other kind of configuration.
Still the description above the list of key-value pairs clearly states: "Secrets are key/value pairs than can be used to protect sensitive data like passwords and connection strings."
153308-image.png

How can the running container access the secrets?

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Accepted answer
  1. vipullag-MSFT 16,736 Reputation points Microsoft Employee
    2021-11-29T10:21:14.993+00:00

    @Peter Hultqvist

    Currently Azure Container Apps is not supported on this Microsoft Q&A platform.

    Please check the supported products list here (more to be added later on).

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1 additional answer

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  1. Nils Hedström 1 Reputation point
    2022-01-26T11:34:12.823+00:00

    Based on the example on https://learn.microsoft.com/en-us/azure/container-apps/secure-app?tabs=arm-template#example I was able to access secrets from my Azure Container App

    The key was to create an environmental variable with a referece to the secret
    "template": {
    "containers": [
    {
    "image": "myregistry/myQueueApp:v1",
    "name": "myQueueApp",
    "env": [
    {
    "name": "QueueName",
    "value": "myqueue"
    },
    {
    "name": "ConnectionString",
    "secretref": "queue-connection-string"
    }
    ]
    }
    ],

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