Reputation: 2431
I have an ARM template which sources the primaryMasterKey of a cosmosDb as follows:
{ "properties": { "enabled": true, "siteConfig": { "appSettings": [ { "name": "MongoDb:CnnDetails", "value": "[listKeys(resourceId('Microsoft.DocumentDB/databaseAccounts', variables('cosmosdb_full')), '2015-04-08').primaryMasterKey]" } }
How to I modify it to get the actual connection string instead?
I've tried couple of things:
'The language expression property 'primaryConnectionString' doesn't exist, available properties are 'primaryMasterKey, secondaryMasterKey, primaryReadonlyMasterKey, secondaryReadonlyMasterKey'
'The language expression property 'primaryConnectionString' doesn't exist, available properties are 'connectionStrings'
I went to https://learn.microsoft.com/en-us/rest/api/cosmos-db-resource-provider/databaseaccounts/listconnectionstrings#code-try-0 to try it out. ListKeys returns a structure like this:
{ "primaryMasterKey": "[REDACTED]", "secondaryMasterKey": "[REDACTED]", "primaryReadonlyMasterKey": "[REDACTED]", "secondaryReadonlyMasterKey": "[REDACTED]" }
so I get why the .primaryMasterKey worked. But ListConnectionStrings returns:
{
"connectionStrings": [
{
"connectionString": "mongodb://[REDACTED]:10255/?ssl=true&replicaSet=globaldb",
"description": "Primary MongoDB Connection String"
},
{
"connectionString": "mongodb://[REDACTED]:10255/?ssl=true&replicaSet=globaldb",
"description": "Secondary MongoDB Connection String"
},
{
"connectionString": "mongodb://[REDACTED]:10255/?ssl=true&replicaSet=globaldb",
"description": "Primary Read-Only MongoDB Connection String"
},
{
"connectionString": "mongodb://[REDACTED]:10255/?ssl=true&replicaSet=globaldb",
"description": "Secondary Read-Only MongoDB Connection String"
}
]
}
Not sure how to "index into it"?
Any clues gratefully received.
Upvotes: 15
Views: 7625
Reputation: 490
In the Cosmos linked ARM template named linkedTemplate_cosmos_db-gdp-event-ammi-dev-ne-001 I used the following code.
"outputs": {
"ConnectionString": {
"value": "[listConnectionStrings(resourceId('Microsoft.DocumentDB/databaseAccounts', parameters('accountName')), '2019-12-12').connectionStrings[0].connectionString]",
"name": "CosmosConnection",
"type": "string"
}
},
and then in the ARM template (linkedTemplate_Main) that uses the output parameter, the following, e.g a function app configuration setting
"COSMOS_CONNECTION_STRING": {
"value": "[reference('linkedTemplate_cosmos_db-gdp-event-ammi-dev-ne-001').outputs.ConnectionString.value]"
Upvotes: 0
Reputation: 96
The answer here by oatsoda is correct but it will only work if you are within the same resource group as the Cosmos DB you are getting the connection string for. If you have the scenario where you Cosmos DB is in a different resource group to the resource you are generating an ARM template for the following snippet is what I have used to generate the connection string for an App Service and is working.
"Cosmos": {
"value": "[listConnectionStrings(resourceId(parameters('cosmosResourceGroupName'),'Microsoft.DocumentDB/databaseAccounts', parameters('cosmosDbName')), '2019-12-12').connectionStrings[0].connectionString]",
"type": "Custom"
}
Upvotes: 5
Reputation: 2188
For anyone else finding this question and wanting a fully complete ARM Template snippet, this is what I have used and is working:
"connectionStrings": [
{
"name": "CosmosConnection",
"connectionString": "[listConnectionStrings(resourceId('Microsoft.DocumentDB/databaseAccounts', parameters('cosmosDbAccountName')), '2019-12-12').connectionStrings[0].connectionString]",
"type": 3
}
]
Upvotes: 26
Reputation: 72141
like you normally would in almost any language:
ListConnectionStrings.connectionStrings[index].connectionString
index starts at 0.
you have a more "native" way of doing this:
first(ListConnectionStrings.connectionStrings).connectionString
but only available functions are first and last
Upvotes: 6