Disable sandbox in custom rule

Question

How can I disable the sandbox in a custom Bazel rule?

I want the sandbox always disabled for every instantiation of this rule, without the user having to do anything.

Answer 1

When creating actions in the rule implementation, include the execution_requirements dict argument containing a no-sandbox key with a value of 1. This forces the action to never run in the sandbox.

def _impl(ctx):
  ctx.actions.run_shell(
    outputs = [ctx.outputs.executable],
    command = "..",
    execution_requirements = {
      "no-sandbox": "1",
      "no-cache": "1",
      "no-remote": "1",
      "local": "1",
    },
  )

See the tags attribute on the documentation for common build attributes for more information on these tags/requirements.