Bootstrap CodePress Live Dev Server recipe + dev Dockerfiles

.codepress/dev-server/Dockerfile.web

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+# Generated by CodePress bootstrap-dev-server.
+# Dev-mode image for the "web" frontend (Live Dev Server).
+# Edits are preserved, but running /codepress-bootstrap-dev-server again may overwrite them.
+
+# Node 16 is pinned deliberately. This app is Create React App 1.0.10 on
+# webpack 2.6.1 / webpack-dev-server 2.5.0 / React 15 (see web/yarn.lock), a
+# 2017-era toolchain that does not run on current Node majors. The repo pins no
+# Node version of its own (no .nvmrc, no engines.node), so the current-LTS
+# default would produce an image whose dev server never boots.
+FROM public.ecr.aws/docker/library/node:16-bookworm
+
+# System packages the dev runtime needs. `procps` only, so dev-process
+# supervisors can inspect and clean up child process trees on shutdown. This
+# app's dependency tree has no native module that builds from source on linux
+# (fsevents@1.1.2 is darwin-only and skipped), so no extra apt library applies.
+RUN apt-get update \
+    && apt-get install -y --no-install-recommends procps \
+    && rm -rf /var/lib/apt/lists/*
+
+# yarn 1.x classic drives this app (web/yarn.lock is a v1 lockfile, and the repo
+# declares no `packageManager` field). The node:16-bookworm base already ships
+# yarn 1.22.x, so assert it at build time — the build then fails loudly instead
+# of the dev command failing at run time — and fall back to a pinned install if a
+# future base image drops it. Only the package-manager binary is baked here,
+# never app dependencies.
+RUN yarn --version || npm install --global --force yarn@1.22.22
+
+WORKDIR /app
+
+# THIN image: no `node_modules`, no source COPY. The dev-server runtime provides
+# dependencies at run time (squashfs hydration, or `yarn install
+# --frozen-lockfile` in this image against the bind-mounted checkout). Only the
+# toolchain lives here.
+
+# HMR + bind config — values come from the runtime, never hardcoded.
+ENV HOSTNAME=0.0.0.0 \
+    CODEPRESS_BIND_HOST=0.0.0.0 \
+    PORT=3000 \
+    CODEPRESS_HMR_CLIENT_PORT=443 \
+    CODEPRESS_HMR_PROTOCOL=wss
+
+WORKDIR /app/web
+EXPOSE 3000
+
+# Put the app and root bins on PATH as a backstop, so the dev command and
+# anything it shells out to resolve node_modules/.bin. Both dirs are populated at
+# run time on the bind-mounted checkout. Prepend, never replace ${PATH}.
+ENV PATH="/app/web/node_modules/.bin:/app/node_modules/.bin:${PATH}"
+
+# Dev command (HMR on) — `react-scripts start`, routed through yarn rather than a
+# bare bin. CRA reads HOST and PORT from env, so the bind address stays
+# runtime-driven and never hardcodes localhost. WDS_SOCKET_PORT carries the
+# PUBLIC HMR port for react-scripts versions that honor it; this version's
+# react-dev-utils derives the sockjs URL from window.location, which already
+# resolves to the preview origin behind the proxy. BROWSER=none stops CRA trying
+# to launch a browser inside the container, and DANGEROUSLY_DISABLE_HOST_CHECK
+# keeps webpack-dev-server from rejecting the preview's Host header.
+CMD ["sh", "-c", "HOST=\"${CODEPRESS_BIND_HOST:-0.0.0.0}\" PORT=\"${PORT:-3000}\" WDS_SOCKET_PORT=\"${CODEPRESS_HMR_CLIENT_PORT:-443}\" BROWSER=none DANGEROUSLY_DISABLE_HOST_CHECK=true yarn start"]

.codepress/dev-server/recipe.json

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+{
+  "schema_version": 1,
+  "bootstrapped_at": "2026-07-27T16:05:25Z",
+  "discovery_branch": "codepress/dev@codepress.dev/bootstrap-live-dev-server-artifacts-6561aa70",
+  "frontends": [
+    {
+      "label": "web",
+      "working_dir": "web",
+      "dockerfile_path": ".codepress/dev-server/Dockerfile.web",
+      "dev_command": "sh -c 'HOST=\"${CODEPRESS_BIND_HOST:-0.0.0.0}\" PORT=\"${PORT:-3000}\" WDS_SOCKET_PORT=\"${CODEPRESS_HMR_CLIENT_PORT:-443}\" BROWSER=none DANGEROUSLY_DISABLE_HOST_CHECK=true yarn start'",
+      "prebuild_command": "",
+      "prebuild_inputs": [],
+      "framework": "cra",
+      "package_manager": "yarn",
+      "install_command": "yarn install --frozen-lockfile",
+      "dependency_manifests": ["web/yarn.lock"],
+      "dev_port": 3000,
+      "system_packages": ["procps"],
+      "size": "medium"
+    }
+  ]
+}