Developer's Guide


Modifications to AdnconfigSpec

Changes can be made in this file.

make generate

Run controller locally

make run


Chain Compiler

sed -i 's|<COMPILER_DIR>|'"$(pwd)"'|g' examples/chain/echo.yaml
python compiler/ --spec examples/chain/echo.yaml --backend envoy -v --opt_level no

usage: [-h] -s SPEC_PATH [-v] [--pseudo_property] [--pseudo_impl] -b {mrpc,envoy}
               [--mrpc_dir MRPC_DIR] [--dry_run] [--opt_level {no,ignore,weak,strong}]
               [--no_optimize] [--replica REPLICA] [--opt_algorithm OPT_ALGORITHM] [--debug]

  -h, --help            show this help message and exit
  -s SPEC_PATH, --spec_path SPEC_PATH
                        Path to user specification file
  -v, --verbose         If added, request graphs (i.e., element chains) on each edge will be
                        printed on the terminal
  --pseudo_property     If added, use hand-coded properties instead of auto-generated ones
  --pseudo_impl         If added, use hand-coded impl instead of auto-generated ones
  -b {mrpc,envoy}, --backend {mrpc,envoy}
                        Backend name
  --mrpc_dir MRPC_DIR   Path to mrpc repo
  --dry_run             If added, the compilation terminates after optimization (i.e., no
                        backend scriptgen)
  --opt_level {no,ignore,weak,strong}
                        optimization level
  --no_optimize         If added, no optimization will be applied to GraphIR
  --replica REPLICA     #replica for each service
  --opt_algorithm OPT_ALGORITHM
  --debug               Print debug info

The compiler will automatically install elements on all the nodes and

  • Generate and in graph/gen if the backend is mRPC.
  • Generate manifest files if the backend is Envoy. Use kubectl apply -f to run the application

Element Compiler

Follow these steps if you want to interact with the element compiler directly.

The element compiler convert AppNet program to an IR. From IR, we can infer the element property (used by graph compiler). The element compiler also generates backend code for each element.

python compiler/ --element examples/elements/echo_elements/fault.appnet --backend envoy --placement client --proto ping.proto --method_name PingEcho

                                -b BACKEND

  -h, --help            show this help message and exit
  -e ELEMENT_PATH, --element_path ELEMENT_PATH
                        (Element_path',') *
  -v, --verbose         Print Debug info
  -p PLACEMENT, --placement PLACEMENT
                        Placement of the generated code
  -r PROTO, --proto PROTO
                        Filename of the Protobuf definition (e.g., hello.proto)
  -m METHOD_NAME, --method_name METHOD_NAME
                        Method Name (must be defined in proto)
  -b BACKEND, --backend BACKEND
                        Backend Code Target