j2skaffold

A simple skaffold wrapper with support for jinja2 templating.

Status

Requirements

• Python 2.7 or Python 3.3+ or PyPy 2.4.0+

Setup

$ python -m pip install --user j2skaffold
or
(venv)$ python -m pip install j2skaffold

Usage

$ j2skaffold dev

will run skaffold dev after rendering the skaffold.jinja2 file from the current directory.

$ j2skaffold dev --keep-yaml

will do the same, keeping the rendered skaffold.yaml file. (Useful for debugging.)

The following special variables are available:

• skaffold_command (dev, build, etc.)
• current_profile (value of the -p argument)

The following special yaml key can be used:

• _set_profile: [name] - sets the current profile using the -p argument. Should be always wrapped inside some {% if not current_profile %}, otherwise it will get passed through, and skaffold will fail with:

FATA[0000] creating runner: reading configuration: parsing skaffold config: parsing skaffold config: yaml: unmarshal errors:
line 2: field _set_profile not found in type v1alpha3.SkaffoldConfig

Example skaffold.jinja2 demonstrating all the available features:

{% if skaffold_command == 'dev' and not current_profile %}
_set_profile: dev
{% endif %}
apiVersion: skaffold/v1alpha3
kind: Config
build:
  artifacts:
  - imageName: gcr.io/k8s-skaffold/skaffold-example-{{ current_profile }}
deploy:
  kubectl:
    manifests:
      - k8s-*
profiles:
{% for profile in ['dev', 'production'] %}
  - name: {{ profile }}
    # ... use any jinja2 syntax
{% endfor %}