Lerna/webpack repository not building inside docker - node.js

Question

I have a lerna repository that utilizes webpack to build. When I build in the repository directly with NODE_ENV=production npm run lerna run build --scope=#contuit/service-api-executor the build works properly. However, in the docker build I never end up with any output file main.js.
If I build in the repository first and then do the docker build, the built file gets copied and the container runs properly. What am I missing here?
FROM node:fermium as build
# Create app directory
RUN mkdir -p /usr/src/app
WORKDIR /usr/src/app
# Install app dependencies
COPY package.json .
RUN npm install --loglevel notice
COPY packages/service-api-executor ./packages/service-api-executor
COPY packages/http ./packages/http
COPY packages/engine-sdk ./packages/engine-sdk
COPY packages/logger ./packages/logger
COPY packages/error ./packages/error
COPY packages/service ./packages/service
COPY packages/cli ./packages/cli
COPY lerna.json .
# Bundle app source
RUN yarn bootstrap
RUN NODE_ENV=production npm run lerna run build --scope=#contuit/service-api-executor
EXPOSE 7001
CMD [ "node", "packages/service-api-executor/dist/main.js" ]
webpack.config
const path = require('path');
const webpack = require('webpack');
const LernaProject = require('#lerna/project');
const StartServerPlugin = require('start-server-webpack-plugin');
const nodeExternals = require('webpack-node-externals');
const getBackendConfig = async (mode = 'development') => {
const project = new LernaProject(process.cwd());
const packages = await project.getPackages();
const moduleDirs = packages.map((p) => path.resolve(p.location, 'node_modules'));
const plugins = [new webpack.DefinePlugin({ 'global.GENTLY': false })];
console.log({ mode });
if (mode === 'development') {
plugins.push(
new StartServerPlugin({
name: 'main.js',
signal: true,
nodeArgs: ['--inspect']
})
);
}
return {
mode,
target: 'node',
stats: { logging: 'verbose' },
entry: './src/drivers/webserver/index.js',
watchOptions: {
// eslint-disable-next-line require-unicode-regexp
ignored: ["/node_modules\/(?!#contuit)/"],
},
externals: [
nodeExternals({
modulesDir: path.resolve(process.cwd(), 'node_modules'),
additionalModuleDirs: moduleDirs,
}),
],
output: {
filename: 'main.js',
path: path.resolve(process.cwd(), 'dist'),
},
plugins,
};
};
module.exports = { getBackendConfig };