tasq 0.0.3

Task handlinlg.

TaskSquirrel

TaskSquirrel executes tasks from a Tasqfile.yml. It is similar to make or invoke. It also supports Kubernetes workflows like Argo and Airflow.

Differences from other tools are:

• configuration is in YAML
• it supports multiple scripts / languages
• it supports Jinja2 templating
• it has built-in support for executing code in Docker and on Kubernetes clusters
• it is completely serverless: all it requires for interacting with a K8s cluster is Kubectl

TaskSquirrel is a good replacement for invoke and make even if you don't use the container-related features, but it is particularly well suited to data analysis and deep learning workflows.

Commands

• tasq --help -- display help
• tasq list -- list all commands
• tasq run command -- run a command

Example

Simple replacement for invoke

tasks:
    venv:
      - doc: build the virtual environment
      - script: |
          test -d venv || virtualenv venv
          venv/bin/pip3 install -U -r requirements.txt

    newversion:
      - doc: increase the patch version number
      - python: |
          version = map(int, open("VERSION").read().strip().split("."))
          version[-1] += 1
          with open("VERSION", "w") as stream:
            stream.write(".".join(map(str, version)))

    publish:
      - doc: publish to PyPI
      - script: twine upload

Kubernetes Example

params:

  cluster: "mycluster"
  image: "mycompute"

tasks:

    image:
      docker_container: {{ image }}
        dockerfile: ./Docker
        push: tmbdev/{{ image }}
        context:
          - simple.key
          - scripts/start.sh

    kutest:
      - doc: start a job on K8s and wait for its completion
      - task: image
      - with_braceexpand: "{000..999}"
        param: shard
        tasks:
          - kubectl_apply: hello
            template_name: myjob
            params:
              id: hello-{{ shard }}
              script: |
                echo hello-{{ shard }};
                sleep 30
      - kubectl_wait:
        kind: jobs
        prefix: hello-
      - script: kubectl delete jobs --all

k8s_templates:

  myjob: |
    apiVersion: batch/v1
    kind: Job
    metadata:
      name: "{{ id }}"
    spec:
      template:
        spec:
          containers:
          - name: main
            image: "{{ image }}"
            command: ["/bin/bash", "-c", "{{ script }}"]
          restartPolicy: Never
      backoffLimit: 4

Status

It's pre-alpha.