Debugging Lua inside Openresty inside Docker with IntelliJ IDEA - Blogpost Steps

1.conf

env DEBUG_SOURCES_DIR;

1.Dockerfile

RUN curl https://github.com/EmmyLua/EmmyLuaDebugger/archive/refs/tags/1.0.16.tar.gz \
         -L -o EmmyLuaDebugger-1.0.16.tar.gz && \
    tar -xzvf EmmyLuaDebugger-1.0.16.tar.gz && \
    cd EmmyLuaDebugger-1.0.16 && \
        mkdir -p build && \
        cd build && \
            cmake -DCMAKE_BUILD_TYPE=Release ../ && \
            make install && \
            mkdir -p /usr/local/emmy && \
            cp install/bin/emmy_core.so /usr/local/emmy/ && \
        cd .. && \
    cd .. && \
    rm -rf EmmyLuaDebugger-1.0.16 EmmyLuaDebugger-1.0.16.tar.gz

1.lua

package.cpath = package.cpath .. ';/Users/omer_van_kloeten/Library/Application Support/JetBrains/IntelliJIdea2021.1/plugins/EmmyLua/classes/debugger/emmy/mac/?.dylib'
local dbg = require('emmy_core')
dbg.tcpListen('localhost', 9966)
dbg.waitIDE()

1.sh

export DEBUG_SOURCES_DIR="/Users/omer_van_kloeten/my_project/src"

1.yaml

services:
  nginx:
    ports:
      - "9966:9966"

2.conf

lua_code_cache off;

2.Dockerfile

RUN curl https://cmake.org/files/v3.7/cmake-3.7.2.tar.gz \
         -o cmake-3.7.2.tar.gz && \
    tar -xvzf cmake-3.7.2.tar.gz && \
    cd cmake-3.7.2 && \
        ./configure && \
        make && \
        make install && \
    cd .. && \
    rm -rf cmake-3.7.2 cmake-3.7.2.tar.gz && \
    update-alternatives --install /usr/bin/cmake cmake /usr/local/bin/cmake 1 --force

2.lua

package.cpath = package.cpath .. ';/usr/local/emmy/?.so'
local dbg = require('emmy_core')
dbg.tcpListen('localhost', 9966)
dbg.waitIDE()

2.yaml

services:
  nginx:
    environment:
      DEBUG_SOURCES_DIR:

3.lua

_G.emmy = {}
_G.emmy.fixPath = function(path)
    return string.gsub(path, '/etc/nginx/', ‘/Users/omer_van_kloeten/my_project/src/')
end

3.yaml

  nginx:
    volumes:
      - "./src/lua:/etc/nginx/lua:ro"

4.lua

local debug_sources_dir = os.getenv('DEBUG_SOURCES_DIR')
_G.emmy = {}
_G.emmy.fixPath = function(path)
    return string.gsub(path, '/etc/nginx/', debug_sources_dir..'/')
end

These snippets are used in the Debugging Lua inside Openresty inside Docker with IntelliJ IDEA blogpost.