Skip to content

Configuration Reference

All plugin settings live in conf/<env>/azureml.yml. The file is parsed into KedroAzureMLConfig. For dataset configuration in catalog.yml, see the Datasets reference.

Top-level structure

workspace:             # required
compute:               # required
execution:             # optional
schedules:             # optional
notifications:         # optional
jobs:                  # optional

workspace

Named Azure ML workspace definitions. A __default__ entry is required.

workspace:
  __default__:
    subscription_id: "00000000-0000-0000-0000-000000000000"
    resource_group: "rg-dev"
    name: "aml-dev"
  prod:
    subscription_id: "11111111-1111-1111-1111-111111111111"
    resource_group: "rg-prod"
    name: "aml-prod"

Each workspace entry (WorkspaceConfig) has the following fields:

Field Type Required Description
subscription_id string yes Azure subscription ID
resource_group string yes Azure resource group name
name string yes Azure ML workspace name

Jobs reference a workspace by name via their workspace field. The __default__ is used when no workspace is specified. See Configure multiple workspaces for a walkthrough.


compute

Named compute cluster definitions. A __default__ entry is required.

compute:
  __default__:
    cluster_name: "cpu-cluster"
  gpu:
    cluster_name: "gpu-cluster"

Each compute entry (ClusterConfig) has the following fields:

Field Type Required Description
cluster_name string on __default__ Name of the Azure ML compute cluster. Tag entries inherit it from __default__ when omitted
instance_type string no Azure ML instance type to run steps under. Kubernetes compute targets only

Jobs reference a compute entry by name via their compute field.

Kubernetes compute targets

When cluster_name points at an attached Kubernetes compute target (AKS or Azure Arc), instance_type selects the InstanceType custom resource the step runs under. Instance types are defined on the cluster by its administrator; the plugin passes the name through without validating it.

When instance_type is omitted, Azure ML runs the step under defaultinstancetype, whose stock definition limits each step to 2 CPU cores, 2 GiB of memory, and no GPU. Set an instance type for any workload that needs more than that ceiling, and for every GPU workload.

The field has no effect on AmlCompute clusters; Azure ML ignores it there.

Tag-based routing

Kedro node tags can route nodes to specific compute clusters. When a node has a tag that matches a named compute entry, that entry is merged with __default__ field by field:

compute:
  __default__:
    cluster_name: "k8s-compute"
  gpu:
    instance_type: "gpu-large"
  cpu-heavy:
    cluster_name: "other-compute"

A node tagged gpu in your Kedro pipeline will run on k8s-compute under the gpu-large instance type. Nodes without a matching tag fall back to __default__. Fields from the tagged entry override __default__ fields, and omitted fields are inherited: the cpu-heavy entry above inherits any instance_type set on __default__, so set it explicitly when the target cluster defines different instance types.


execution

Code packaging and container settings. All fields are optional.

execution:
  environment: "my-env@latest"
  code_directory: "."
  working_directory: /home/kedro
Field Default Description
environment null Azure ML environment name (e.g. my-env@latest or my-env:3)
code_directory null Local directory to upload as a code snapshot; null disables code upload
working_directory null Working directory inside the compute container. Set this when your Azure ML environment expects code at a specific path (e.g. /home/kedro). When null, Azure ML uses its default working directory.

The combination of environment and code_directory determines the deployment flow. When code_directory is set (e.g. "."), the plugin uploads a snapshot of your project and runs it inside the environment (code flow). When code_directory is null, the plugin expects the code to already be baked into the Docker image referenced by environment (image flow). See Deploy from CI/CD for guidance on choosing between the two.

In the code flow, kedro azureml run and kedro azureml schedule stage the snapshot once per invocation and register it once per workspace:

  1. The files that the ignore file of code_directory keeps (.amlignore first, else .gitignore) are copied into a temporary directory. The selection is the Azure ML SDK's own, so a whitelist .amlignore behaves exactly as it does for a direct upload.
  2. That directory is registered as one anonymous code asset, the same content-addressed kind the SDK creates for snapshots itself. An upload whose content hash already exists in the workspace's storage is skipped and resolves to the existing asset, so unchanged code creates nothing new.
  3. Every step of every job in the batch references that asset instead of a local path.

Without staging, the SDK walks and hashes the whole code_directory once per step, which for a large working tree (a virtual environment, data, git objects) dominates submission time. kedro azureml compile keeps the configured path in its output and neither stages nor registers, so it needs no credentials.


schedules

Reusable named schedule definitions. Jobs reference them by name.

schedules:
  business_hours:
    cron:
      expression: "0 9 * * 1-5"
      time_zone: "Europe/London"

Each schedule entry has exactly one of cron or recurrence. See Schedule pipelines for end-to-end setup.

cron

Field Default Description
expression required Cron expression (e.g. "0 2 * * *")
time_zone "UTC" IANA time zone name (e.g. "Europe/London")
start_time null ISO 8601 start time
end_time null ISO 8601 end time

recurrence

Field Default Description
frequency required Recurrence unit: "minute", "hour", "day", "week", or "month"
interval required Number of frequency units between runs
time_zone "UTC" IANA time zone name
start_time null ISO 8601 start time
end_time null ISO 8601 end time
schedule.hours null Hours of the day to trigger
schedule.minutes null Minutes of the hour to trigger
schedule.week_days null Days of the week to trigger (e.g. ["Monday", "Friday"])

notifications

Reusable named notification definitions. Jobs reference them by name, and the plugin then posts one start, one success, and one failure message per run of the job, whoever submitted it and however many steps it has, to a webhook or through the Slack API.

notifications:
  alerts:
    webhook_env: SLACK_WEBHOOK_URL
    events: [start, success, failure]
    payload: my_project.notifications:build_payload
    wait_timeout: 900
  threaded:
    token_env: SLACK_BOT_TOKEN
    channel: C0123456789
    events: [start, success, failure]
    payload: my_project.notifications:build_payload
Field Default Description
webhook_env null Name of the environment variable, inside the step, that holds the webhook URL. The URL itself never appears in configuration
token_env null Name of the environment variable, inside the step, that holds the Slack bot token. Set together with channel
channel null Slack channel ID the API posts to. Set together with token_env
events required Events to report: any non-empty subset of start, success, failure, warning, recovered
payload null module.path:function_name reference to a payload builder called with a NotificationEvent; null posts a plain {"text": ...} payload
wait_timeout 1800 Seconds the outcome step waits for the job's other leaf steps before posting an outcome-unknown message instead of success
warning_repeat_hours 24 While a job stays degraded, hours between reminders of the same outage, measured between run start times
warning_repeat_tolerance_minutes 15 How many minutes early a reminder may come

The field is named events rather than on because YAML 1.1 reads a bare on key as the boolean true.

A definition names at least one transport: webhook_env, or token_env with channel. When it names both, a step posts through the API when the token is present in its environment and through the webhook otherwise. The API transport threads the outcome messages under the run's start message and also sends them to the channel; see Notify on run outcomes for what that requires.

Two more rules are checked when the configuration loads or the job compiles:

  • When the referencing job declares limits.timeout, wait_timeout must be below it. The outcome step's wait counts against its own step budget, and a step cancelled mid-wait posts nothing.
  • A job that enables success on a pipeline with more than one leaf node must declare an experiment_name and run with the plugin's mlflow extra installed. The outcome step identifies its sibling leaves through the MLflow run tags the MLflow integration writes, and only an experiment name activates that integration.

See Notify on run outcomes for the end-to-end setup and the exact once-per-job rules.

jobs

Named job definitions. Each job maps a Kedro pipeline to an Azure ML pipeline submission.

jobs:
  training:
    pipeline:
      pipeline_name: "__default__"
      tags: ["training"]
    experiment_name: "training-experiment"
    display_name: "Daily training"
    compute: "gpu"
    workspace: "prod"
    description: "Run the training pipeline on GPU cluster"
    schedule: "business_hours"
    params:
      lookback_days: 30
    limits:
      timeout: 3600
Field Default Description
pipeline required Pipeline selection and filter options (see below)
workspace null Named workspace entry; falls back to __default__
experiment_name null Azure ML experiment name
display_name null Display name shown in Azure ML Studio
compute null Named compute entry; falls back to __default__
schedule null Inline ScheduleConfig, named schedule string, a list of either (one trigger deployed per entry), or null for ad-hoc
params null Job-scoped runtime parameters merged into the pipeline on compile, run, and schedule (see below)
limits null Run-duration limits applied to every step in the job (see below)
description null Human-readable job description
notifications null Name of a notifications definition whose webhook receives this job's run events

params

Optional job-scoped runtime parameters, equivalent to passing --params for that job but stored in config so every compile, run, and schedule of the job picks them up. When a value is also given on the command line, the CLI --params value wins for that key; remaining job-level keys are kept. This lets a job carry stable defaults while still allowing one-off overrides at submission time.

jobs:
  training:
    pipeline:
      pipeline_name: "__default__"
    params:
      lookback_days: 30
      model: "lgbm"

Job factories

A jobs key that contains {placeholder} markers is a job factory: a templated job entry, mirroring a Kedro dataset factory. By default the jobs are derived from your pipeline namespaces, the same way a dataset factory's concrete datasets are determined by pipeline node references. You write a few factory patterns, and the concrete jobs come from the namespaces of each factory's pipeline. No target list is required:

jobs:
  # one job per namespace of the `inference` pipeline
  "{region}-{model}-inference":
    schedule: nightly
    pipeline:
      pipeline_name: "inference"
      node_namespaces: ["{region}.{model}"]
  # a more-specific pattern overrides the schedule for one region
  "america-{model}-inference":
    schedule: "hourly"
    pipeline:
      pipeline_name: "inference"
      node_namespaces: ["{region}.{model}"]
  # literal (non-factory) jobs are kept verbatim and take precedence
  snapshot:
    pipeline: {pipeline_name: "snapshot"}

Bindings come from the pipeline. For each factory, the node_namespaces template defines the placeholder names and their namespace depth. The plugin enumerates the distinct namespaces of pipeline_name at that depth and binds the placeholders positionally (so the namespace europe.lgbm binds region=europe, model=lgbm). One job is produced per binding. Adding a variant to your pipelines makes its job appear with no azureml.yml edit. A factory name placeholder that is absent from its node_namespaces template is a configuration error. When node_namespaces holds more than one entry, only the first is the binding axis; the rest are not used for derivation but still render per job as ordinary runtime namespace filters.

Resolution is forward-only. Job names are produced only by rendering placeholders into a pattern; names are never parsed back. When more than one pattern renders the same name, the most-specific one (most literal, non-placeholder characters) supplies the config, so per-region variation such as a different schedule is expressed by a more-specific pattern rather than an override table. Literal (non-factory) jobs take precedence over any pattern.

{placeholder} (factory) and ${...} (OmegaConf) use different syntax and coexist. The namespace alone identifies the job, so no tags filter is needed. Job names use the namespace form of each placeholder verbatim (so europe.lgbm yields europe-lgbm-inference).

  • kedro azureml run -j <name> renders all bindings (overlaying literal jobs) and looks the requested name up; an unknown name is an error listing the available jobs.
  • kedro azureml resolve-patterns lists every derived job (see the CLI reference), which is how you discover the names to pass to -j.

There is no separate target list or provider key: the jobs are always derived from the pipeline namespaces, so adding a variant to your pipelines yields its job with no config edit.

For the dataset-factory analogy and why resolution is forward-only, see Job Factories; for a step-by-step recipe, see Define jobs with factories.

limits

Optional run-duration limits applied to every command step in the job. Maps to azure.ai.ml.entities.CommandJobLimits.

limits:
  timeout: 3600
Field Default Description
timeout required Maximum run duration in seconds, after which Azure ML cancels the step (must be >= 1)

The timeout is a hang guard rather than an expected duration. When it is reached, Azure ML cancels the step and releases the compute instances it was holding, so a wedged step does not occupy a cluster indefinitely. Set it above your slowest realistic run, not at it.

There is no retry setting

Azure ML declares RetrySettings for parallel and sweep jobs only. This plugin compiles every Kedro node into a command step, so a retry setting would be accepted by the SDK as an unknown field and then ignored by the service. limits is offered because the command-step contract acts on it; retries are not available and a failed step is not re-run.

pipeline filter options

These fields correspond to the parameters of Kedro's Pipeline.filter() method.

Field Default Description
pipeline_name "__default__" Kedro pipeline name
from_nodes null Start from these nodes
to_nodes null Run up to these nodes
node_names null Run only these specific nodes
from_inputs null Start from nodes that produce these datasets
to_outputs null Run up to nodes that produce these datasets
node_namespaces null Filter by namespace
tags null Filter by tag

Environment variables

The following environment variables are set automatically by the plugin during remote execution. They are reserved and should not be set directly.

Variable Set by Description
KEDRO_AZUREML_MLFLOW_ENABLED Pipeline generator Set to "1" on each step during remote execution to activate MLflow integration
KEDRO_AZUREML_NOTIFY Pipeline generator JSON of the job's resolved notifications definition plus job name, display name, and pipeline name, on every step of a job that references one
KEDRO_AZUREML_NOTIFY_START Pipeline generator Set to "1" on the one root step that posts start
KEDRO_AZUREML_NOTIFY_OUTCOME Pipeline generator Set to "1" on the one leaf step that posts the outcome
KEDRO_AZUREML_NOTIFY_SIBLINGS Pipeline generator Comma-separated names of the other leaf nodes the outcome step waits for