is there a way i can fail in ytt for a missing data value from --data-values-env? for example, i never want to have a MySQL password in a data/values document. but it is always required to be passed as an environment string or the deploy should fail
ytt library's assert package is useful for such situations. It can be used like so:
password: #@ data.values.env.mysql_password if data.values.env.mysql_password else assert.fail("missing env.mysql_password")or even more compactly,
password: #@ data.values.env.mysql_password or assert.fail("missing env.mysql_password")Note that empty strings are falsy in Starlark.