def test_find_templates():
templates = find(os.path.join(HERE, "fixtures/templates"))
assert len(templates) == 2
assert all([t.endswith(".py") for t, v in templates.items()])
with pytest.raises(ValueError):
find(os.path.join(HERE, "fixtures/values"))
def test_render():
templates = find(os.path.join(HERE, "fixtures/templates"))
with pytest.raises(KeyError):
render({}, templates)
rendering = render(
{"name": "test", "internalPort": 80, "externalPort": 80}, templates
)
assert len(rendering) == len(templates)
def cli():
"""kuku: Kubernetes templating tool.
Usage:
kuku apply [-v] [-f <FILE>]... [-s <key=value>]... <TEMPLATES_DIR>
kuku delete [-v] [-f <FILE>]... [-s <key=value>]... <TEMPLATES_DIR>
kuku render [-v] [-f <FILE>]... [-s <key=value>]... <TEMPLATES_DIR>
kuku (-h | --help)
kuku --version
Options:
-h --help Show this screen.
-v --verbose Dump debug info to stderr.
--version Show version.
-s KEY=VALUE --set KEY=VALUE Set values on the command line (accepts multiple options or separate values with commas: Ex: -s key1=val1,key2=val2).
-f FILE --file FILE Specify values in a YAML file (accepts multiple options).
Notes:
Resolution of values: --set overrides values in --file by merging. The last value wins.
"""
# Parse cli arguments from docstring
arguments = docopt(str(cli.__doc__), version=__version__)
# Load k8s config -- needed to the correct API versions of k8s
config.load_kube_config()
# Find all templates
try:
templates = find(arguments["<TEMPLATES_DIR>"])
except ValueError as e:
print(e)
exit(1)
raise
try:
# Resolve values
context = resolve(arguments["--set"], arguments["--file"])
except ValueError as e:
print(e)
exit(1)
raise
# Render templates with resolved context
rendering = render(context, templates)
if not context.is_complete:
print(f"Missing values: {context.missing_keys}")
exit(1)
output = dump(rendering)
if arguments["render"]:
# print yaml
print(output)
if arguments["apply"]:
print("Not implemented yet. Use kuku render ... | kubectl apply -f-")
exit(1)
if arguments["delete"]:
print("Not implemented yet. Use kuku render ... | kubectl delete -f-")
exit(1)
if arguments["--verbose"]:
print(output, file=sys.stderr)