Azure Container Apps#

Lithops with Azure Container Apps as serverless compute backend.

Installation#

Install Microsoft Azure backend dependencies:

python3 -m pip install lithops[azure]

Install Azure CLI
Sign in with the Azure CLI:

az login

Create a Resource Group and a Storage Account:

Option 1:
1. Access to the Azure portal Resource Groups and create a new Resource group named LithopsResourceGroup (or similar) in your preferred region. If you already have a resource group, omit this step.
2. Access to the Azure portal Storage Accounts and create a new Storage Account with a unique name, for example: lithops0sa25s1. If you already have a storage account, omit this step.
Option 2:
1. Create a Resource Group in a specific location. If you already have a resource group, omit this step.
```
az group create --name LithopsResourceGroup --location westeurope
```
1. Create a Storage Account with a unique name. If you already have a storage account, omit this step.
```
storage_account_name=lithops$(openssl rand -hex 3)
echo $storage_account_name
az storage account create --name $storage_account_name --location westeurope \
     --resource-group LithopsResourceGroup --sku Standard_LRS
```
Create a Container App environment named lithops.

az extension add --name containerapp --upgrade
az provider register --namespace Microsoft.App --wait
az provider register --namespace Microsoft.OperationalInsights --wait
az containerapp env create --name lithops --resource-group LithopsResourceGroup --location westeurope

Configuration#

Access to the Storage Account
In the left menu, under the Security + networking section, click on Access Keys and copy the Key 1
Edit your lithops config and add the following keys:

  lithops:
      backend : azure_containers

  azure:
      resource_group: <RESOURCE_GROUP_NAME>
      region: <LOCATION>

  azure_storage:
      storage_account_name: <STORAGE_ACCOUNT_NAME>
      storage_account_key: <STORAGE_ACCOUNT_KEY>

Summary of configuration keys for Azure#

Azure#

Group	Key	Mandatory	Additional info
azure	resource_group	yes	Name of a resource group, for example: `LithopsResourceGroup`
azure	region	yes	Location of the resource group, for example: `westeurope`, `westus2`, etc
azure	subscription_id	no	Subscription ID from your account. Find it here

Azure Storage#

Group	Key	Default	Mandatory	Additional info
azure_storage	storage_account_name		yes	Storage account name. The name generated in the step 4 of the installation if you followed these instructions
azure_storage	storage_account_key		yes	An Account Key, found in Storage Accounts > `account_name` > Security + networking > Access Keys

Azure Containers#

Group	Key	Default	Mandatory	Additional info
azure_containers	resource_group		no	Name of a resource group, for example: `LithopsResourceGroup`. Lithops will use the `resource_group` set under the `azure` section if it is not set here
azure_containers	region		no	The location where you created the `lithops` Container APP environment. For example: `westeurope`, `westus2`, etc. Lithops will use the `region` set under the `azure` section if it is not set here
azure_containers	environment	lithops	no	The environemnt name you created in the step 5 of the installation
azure_containers	docker_server	index.docker.io	no	Container registry URL
azure_containers	docker_user		no	Container registry user name
azure_containers	docker_password		no	Container registry password/token. In case of Docker hub, login to your docker hub account and generate a new access token here
azure_containers	max_workers	1000	no	Max number of parallel workers. Although Azure limits the number of parallel workers to 30, it is convenient to keep this value high
azure_containers	worker_processes	1	no	Number of Lithops processes within a given worker. This can be used to parallelize function activations within a worker
azure_containers	runtime		no	Docker image name
azure_containers	runtime_memory	512	no	Memory limit in MB. Default 512Mi
azure_containers	runtime_timeout	600	no	Runtime timeout in seconds. Default 10 minutes
azure_containers	trigger	pub/sub	no	Currently it supports pub/sub invocation
azure_containers	invoke_pool_threads	32	no	Number of concurrent threads used for invocation
azure_containers	runtime_include_function	False	no	If set to true, Lithops will automatically build a new runtime, including the function’s code, instead of transferring it through the storage backend at invocation time. This is useful when the function’s code size is large (in the order of 10s of MB) and the code does not change frequently

Test Lithops#

Once you have your compute and storage backends configured, you can run a hello world function with:

lithops hello -b azure_containers -s azure_storage

Viewing the execution logs#

You can view the function executions logs in your local machine using the lithops client:

lithops logs poll

Azure Container Apps

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