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Developer Documentation

ESPv2 is based on Envoy Proxy and Config Manager. Envoy written in C++ is built using bazel with clang and Config Manager written in go is built using go build.

See the architecture overview before getting started.

Installing Bazelisk as Bazel

It is recommended to use Bazelisk installed as bazel, to avoid Bazel compatibility issues. On Linux, run the following commands:

sudo wget -O /usr/local/bin/bazel https://github.com/bazelbuild/bazelisk/releases/download/v0.0.8/bazelisk-linux-amd64
sudo chmod +x /usr/local/bin/bazel

Install Envoy dependencies

To get started building Envoy locally, following the instructions from Envoy.

Install Clang-8

wget -O- https://apt.llvm.org/llvm-snapshot.gpg.key| apt-key add - && \
    echo "deb http://apt.llvm.org/buster/ llvm-toolchain-buster-8 main" >> /etc/apt/sources.list && \
    sudo apt-get update && \
    sudo apt-get install -y llvm-8-dev libclang-8-dev clang-8 xz-utils lld # install clang-8

Install Clang-format-7

$ sudo apt-get install -y software-properties-common
$ sudo add-apt-repository "deb http://apt.llvm.org/stretch/ llvm-toolchain-stretch-7 main"
$ wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | sudo apt-key add -
$ sudo apt-get update

$ sudo apt-get install clang-format-7

Install Golang

sudo apt-get install golang-1.11

Add the following setting in .profile, then source it:

export GOROOT=/usr/local/go
export GOPATH=$HOME/go
export PATH=$GOPATH/bin:$GOROOT/bin:$PATH
export GOBIN=$GOPATH/bin

Download Source Code

To download the source code, clone the APIProxy repository:

The following folder is required:

- $HOME/go
  - bin
  - src
    -  cloudesf.googlesource.com
       -  gcpproxy

Build Envoy and Config Manager

In order to build Config Manager, need to install its dependent libraries:

make depend.install

To build Config Manager, run:

make build

To build Envoy, run:

make build-envoy

To run integration tests, run:

make integration-test

Run Sanitizer Tests

make test-envoy-asan/tsan
make integration-test-asan/tsan