Bootstrap CodePress Live Dev Server recipe + dev Dockerfile

.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 the last release line linked against OpenSSL 1.1.1. This app's dev
+# toolchain is react-scripts 1.0.10 / webpack 2.6.1, which hashes assets with
+# md4 — removed in OpenSSL 3, so on Node 17+ the dev server dies immediately with
+# `ERR_OSSL_EVP_UNSUPPORTED`. The FULL -bookworm variant (never -slim) is required
+# because dependencies install at run time and need the node-gyp toolchain.
+FROM public.ecr.aws/docker/library/node:16-bookworm
+
+# System packages the dev runtime needs. `procps` only — nothing in web/yarn.lock
+# compiles a native module from source on linux/glibc (fsevents is darwin-only and
+# is skipped), so no extra apt library is required.
+RUN apt-get update \
+    && apt-get install -y --no-install-recommends procps \
+    && rm -rf /var/lib/apt/lists/*
+
+# web/package.json declares no `packageManager` field, and the node base image
+# already ships the Yarn Classic binary this app's yarn.lock was written by — so
+# the package manager is present without corepack (and without a cold-start
+# registry download for a shim). No app dependency install happens here.
+
+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.
+# `BROWSER=none` stops react-scripts from trying to launch a browser in the
+# container. `DANGEROUSLY_DISABLE_HOST_CHECK` is needed because each preview is
+# served from a freshly generated hostname that webpack-dev-server's Host
+# allowlist cannot know in advance; it applies only to this CodePress dev image,
+# never to `yarn start` on a developer's machine.
+ENV HOSTNAME=0.0.0.0 \
+    CODEPRESS_BIND_HOST=0.0.0.0 \
+    PORT=3000 \
+    CODEPRESS_HMR_CLIENT_PORT=443 \
+    CODEPRESS_HMR_PROTOCOL=wss \
+    BROWSER=none \
+    DANGEROUSLY_DISABLE_HOST_CHECK=true
+
+WORKDIR /app/web
+EXPOSE 3000
+
+# Put the checkout's bins on PATH so anything the dev command shells out to
+# resolves node_modules/.bin. These 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), invoked through the package manager rather than a bare
+# binary. react-scripts reads HOST/PORT from env for its bind, and this CRA
+# version's HMR client derives its websocket URL from the page origin — so it
+# connects back through the preview proxy without any hardcoded host.
+# WDS_SOCKET_PORT is exported for the uniform runtime contract (newer CRA reads it).
+CMD ["sh", "-c", "BROWSER=none DANGEROUSLY_DISABLE_HOST_CHECK=true HOST=\"${CODEPRESS_BIND_HOST:-0.0.0.0}\" PORT=\"${PORT:-3000}\" WDS_SOCKET_PORT=\"${CODEPRESS_HMR_CLIENT_PORT:-443}\" yarn start"]

.codepress/dev-server/recipe.json

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+{
+  "schema_version": 1,
+  "bootstrapped_at": "2026-07-25T09:49:45Z",
+  "discovery_branch": "codepress/dev@codepress.dev/bootstrap-live-dev-server-artifacts-b6322b18",
+  "frontends": [
+    {
+      "label": "web",
+      "working_dir": "web",
+      "dockerfile_path": ".codepress/dev-server/Dockerfile.web",
+      "dev_command": "sh -c 'BROWSER=none DANGEROUSLY_DISABLE_HOST_CHECK=true HOST=\"${CODEPRESS_BIND_HOST:-0.0.0.0}\" PORT=\"${PORT:-3000}\" WDS_SOCKET_PORT=\"${CODEPRESS_HMR_CLIENT_PORT:-443}\" 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"
+    }
+  ]
+}