Azure cloud installation

To use Tyger with Azure, you need an Azure subscription and the Azure CLI installed.

The steps for installing Tyger are:

1. Install the tyger CLI.
2. Create an installation config file.
3. Install cloud resources.
4. Install authentication identities.
5. Install the Tyger API.

After installing the tyger CLI, you will use it for the subsequent steps.

For step (3), you will need to have the Owner role at a resource group or the subscription level.

For step (4), you will need permissions to create applications in your Microsoft Entra tenant.

Step (5) does not require either of these.

Install the tyger CLI

tyger is a single executable file. To install it:

1. Visit the releases page.
2. Download the right archive for your platform.
3. Extract the archive to find the tyger executable. Copy it to a directory included in your PATH environment variable.

You should now be able to run tyger --version.

Generate an installation configuration file

We will now generate an installation configuration file, which will be used for subsequent installation steps.

First, ensure you're logged into the Azure CLI using az login.

Next, generate the file with:

tyger config create -f config-path.yml

This command runs an interactive wizard, resulting in a config file saved at the specified location. We recommend keeping this file under version control.

Review and adjust the file's contents as needed.

The installation configuration file typically looks like this:

kind: azureCloud
environmentName: demo

cloud:
  tenantId: 2dda111b-8b49-4193-b6ad-7ad797aa552f
  subscriptionId: 17f10121-f320-4d47-928f-3d42adb68e01
  resourceGroup: demo
  defaultLocation: westus2

  # Optionally point an existing Log Analytics workspace to send logs to.
  # logAnalyticsWorkspace:
  #   resourceGroup:
  #   name:

  compute:
    clusters:
      - name: demo
        apiHost: true
        kubernetesVersion: 1.27
        # location: Defaults to defaultLocation

        userNodePools:
          - name: cpunp
            vmSize: Standard_DS12_v2
            minCount: 1
            maxCount: 10
          - name: gpunp
            vmSize: Standard_NC6s_v3
            minCount: 0
            maxCount: 10

    # These are the principals that will have the ability to run `tyger api install`.
    # They will have access to the "tyger" namespace in each cluster and will have
    # the necessary Azure RBAC role assignments.
    # For users:
    #   "kind" must be set to "User"
    #   "objectId" must be set to the object ID GUID
    #   "userPrincipalName" must be set (this is usually the email address, unless this is a guest account)
    # For groups:
    #   "kind" must be set to "Group"
    #   "objectId" must be set to the object ID GUID
    # For service principals:
    #   "kind" must be set to "ServicePrincipal"
    #   "objectId" must be set to the object ID GUID
    managementPrincipals:
      - kind: User
        userPrincipalName: me@example.com
        objectId: 18c9e451-88aa-47d2-ae4f-1d34d55dc50c

    # The names of private container registries that the clusters must
    # be able to pull from.
    # privateContainerRegistries:
    #   - myprivateregistry

  database:
    serverName: demo-tyger
    postgresMajorVersion: 16

    # Firewall rules to control where the database can be accessed from,
    # in addition to the control-plane cluster.
    firewallRules:
      - name: installerIpAddress
        startIpAddress: 99.99.99.99
        endIpAddress: 99.99.99.99

    # location: Defaults to defaultLocation
    # computeTier: Defaults to Burstable
    # vmSize: Defaults to Standard_B1ms
    # storageSizeGB: Defaults to 32GB (the minimum supported)
    # backupRetentionDays: Defaults to 7
    # backupGeoRedundancy: Defaults to false

  storage:
    # Storage accounts for buffers.
    buffers:
      - name: demowestus2buf
        # location: Defaults to defaultLocation
        # sku: Defaults to Standard_LRS

    # The storage account where run logs will be stored.
    logs:
      name: demotygerlogs
      # location: Defaults to defaultLocation
      # sku: Defaults to Standard_LRS

api:
  # The fully qualified domain name for the Tyger API.
  domainName: demo-tyger.westus2.cloudapp.azure.com

  auth:
    tenantId: 705ef40b-9fa6-45a3-ba0c-b7ced9af6dce
    apiAppUri: api://tyger-server
    cliAppUri: api://tyger-cli

  # Optional Helm chart overrides
  # helm:
  #   tyger:
  #     repoName:
  #     repoUrl: # not set if using `chartRef`
  #     chartRef: # e.g. oci://tyger.azurecr.io/helm/tyger
  #     namespace:
  #     version:
  #     values: # Helm values overrides

  #   certManager: {} # same fields as `tyger` above
  #   nvidiaDevicePlugin: {} # same fields as `tyger` above
  #   traefik: {} # same fields as `tyger` above

All of the installation commands (tyger cloud install, tyger api install, etc.) require you to give a path the the config file (--file|-f PATH). Additionally, the commands allow configuration values to be overridden on the command-line with --set. For example:

tyger api install -f config.yml \
  --set api.helm.tyger.chartRef=oci://tyger.azurecr.io/helm/tyger \
  --set api.helm.tyger.version=v0.4.0

Install cloud resources

To create and configure the necessary cloud components for Tyger (Azure Kubernetes Service, storage accounts, etc.), run:

tyger cloud install -f config.yml

If later on you need to make changes to your cloud resources, you can update the config file and run this command again.

Install authentication identities

Execute the following to install Entra ID applications for the tyger CLI and the Tyger API. These are needed for OAuth authentication:

tyger identities install -f config.yml

This command is idempotent and can be run multiple times. You will receive errors if you do not have sufficient permissions.

For calls to the Tyger API, the tyger CLI can use a service principal instead of a user's identity. If you want to use a service principal for this purpose, you can use an existing one or create a new one on your own.

Install the Tyger API

The last step is to install the Tyger API, which can be done by running:

tyger api install -f config.yml

This command installs the Tyger API from the Helm chart in the tyger.azurecr.io/helm/tyger registry, using a version baked into the tyger CLI. Upgrade the server by updating the CLI and rerunning tyger api install.

The API's TLS certificate is automatically created using Let's Encrypt.

Testing it out

Log in with the tyger CLI using the domain name specified in the config file under api.domainName. For example:

tyger login https://demo-tyger.westus2.cloudapp.azure.com

This will take you through an interactive login flow similar to logging az login.

Once logged in, you should be able to run any of the core commands, such as:

tyger run list

Uninstalling

To uninstall the Tyger API, run:

tyger api uninstall -f config.yml

Note: This does not delete any database data or buffers.

To uninstall all cloud resources, run:

tyger cloud uninstall -f config.yml

Warning

tyger cloud uninstall will permanently delete all database and buffer data.