9.4. How To: Develop on a Mac

This is a tutorial on how to setup your Mac to develop on EVerest.

9.4.1. Application Setup

1. Install Homebrew

   Follow the instructions on the brew.sh.

   It may ask you for your password, but don’t worry, that is expected.

2. Install Docker Desktop

   Follow the instructions from Install Docker Desktop on Mac.

3. Install VSCode

   You can either download it from the VSCode website, or from Homebrew:

   brew install --cask visual-studio-code
   

4. Install VSCode’s Dev Containers Extension

   Once you have VSCode up and running, follow the instructions at the Dev Container extension’s page.

9.4.2. GitHub Setup

1. Create an ssh keypair

   ssh-keygen -t rsa -a 100 -Z aes128-gcm@openssh.com
   

2. Create a file named config in the ~/.ssh folder

   touch ~/.ssh/config
   

   Add the following to the file:

   AddKeysToAgent yes
   User git
   PubkeyAcceptedAlgorithms +ssh-rsa
   

3. Checkout the EVerest Utils repository

   > git@github.com:EVerest/everest-utils.git
   > cd everest-utils
   

   The EVerest utilities GitHub repository contains the dev container that you will need to develop on a Mac.

9.4.3. Standup the Dev Docker Environment

1. Stand up the background Docker network and containers

   From the project root of everest-utils, create the infranet_network Docker network:

   docker network create --driver bridge --ipv6  --subnet fd00::/80 infranet_network --attachable || true
   

   Stand up Everest MQTT and Node-RED Docker containers:

   docker compose -f "./docker/docker-compose.yml" up -d mqtt-server
   docker compose -f "./docker/docker-compose.yml" up -d nodered
   

   There is also a script version of this inside the EVerest Utilities repository.

   bin/devup
   

2. Open the dev container inside VSCode

   • Press CMD + Shift + P

   • type Dev Containers: Open Folder in Container…

   

3. Navigate and open the docker/everest-playground folder.

   

   This will open the EVerest Playground as a VSCode dev container.

4. Initialize your environment

   Now we run commands inside the Playground based on the instructions from the /everest-cpp/README.md file.

   Initialize the EVerest workspace sourcing the ./init.sh file:

   

   The working directory will be changed to everest-core/build. Here you can build the project:

   cmake .. && make install
   

   You can also use make’s -j flag to speed up the build:

   cmake .. && make install -j12
   

   

   Now you’re ready to go.

9.4.4. Troubleshooting

1. napi error when building EVerest in a VSCode DevContainer

   [ 13%] Building CXX object _deps/everest-framework-build/everestjs/CMakeFiles/everestjs.dir/everestjs.cpp.o
   /workspace/everest-cpp/everest-framework/everestjs/everestjs.cpp:9:10: fatal error: napi.h: No such file or directory
       9 | #include <napi.h>
   
   Error: Cannot find module '/home/docker/.vscode-server/data/User/workspaceStorage/5c87aec9a1f3f4ba6ae2c223ac523699/ms-vscode.js-debug/bootloader.js'
   Require stack:
   - internal/preload
       at Function.Module._resolveFilename (internal/modules/cjs/loader.js:815:15)
       at Function.Module._load (internal/modules/cjs/loader.js:667:27)
       at Module.require (internal/modules/cjs/loader.js:887:19)
       at Module._preloadModules (internal/modules/cjs/loader.js:1158:12)
       at loadPreloadModules (internal/bootstrap/pre_execution.js:446:5)
       at prepareMainThreadExecution (internal/bootstrap/pre_execution.js:74:3)
       at internal/main/run_main_module.js:7:1 {
   code: 'MODULE_NOT_FOUND',
   requireStack: [ 'internal/preload' ]
   }
   FATALInstallation of node-addon-api failed
   

   This error seems to be related to `this issue

<https://github.com/microsoft/vscode-js-debug/issues/374#issuecomment-622239998 />`_, caused by the VSCode debugger extension.

Solution: - Cmd + Shift + P - type Toggle Auto Attach then ENTER - Set to disabled.

9.4.5. EVerest SIL Simulation

./dist/bin/manager --config ../config/config-sil-dc.yaml

This starts the EVerest Manager with the modules loaded determined by the config-sil-dc.yaml config file.

You can interact with it using the Node-RED UI by opening your browser to http://localhost:8849/.

9.4.5.1. Stopping things

Code > File > Close Remote Connection

9.4.5.2. Resources

• Node-RED