Method prepareShellOut

pkg/compose/shellout.go:37–49

prepareShellOut prepare a shell-out command to be ran by Compose

(gctx context.Context, env types.Mapping, cmd *exec.Cmd)

// prepareShellOut prepare a shell-out command to be ran by Compose
func (s *composeService) prepareShellOut(gctx context.Context, env types.Mapping, cmd *exec.Cmd) error {
	env = env.Clone()
	// remove DOCKER_CLI_PLUGIN... variable so a docker-cli plugin will detect it run standalone
	delete(env, metadata.ReexecEnvvar)

	// propagate opentelemetry context to child process, see https://github.com/open-telemetry/oteps/blob/main/text/0258-env-context-baggage-carriers.md
	carrier := propagation.MapCarrier{}
	otel.GetTextMapPropagator().Inject(gctx, &carrier)
	env.Merge(types.Mapping(carrier))

	cmd.Env = env.Values()
	return nil
}

// propagateDockerEndpoint produces DOCKER_* env vars for a child CLI plugin to target the same docker endpoint
// `cleanup` func MUST be called after child process completion to enforce removal of cert files