Add new build-webapp command and related scripts and containers. (#626)

* Add new build-webapp command and related scripts and containers.

.gitea/workflows/test-webapp.yml

@@ -0,0 +1,49 @@
+name: Webapp Test
+
+on:
+  pull_request:
+    branches: '*'
+  push:
+    branches:
+      - main
+      - ci-test
+    paths-ignore:
+      - '.gitea/workflows/triggers/*'
+
+# Needed until we can incorporate docker startup into the executor container
+env:
+  DOCKER_HOST: unix:///var/run/dind.sock
+
+jobs:
+  test:
+    name: "Run webapp test suite"
+    runs-on: ubuntu-latest
+    steps:
+      - name: "Clone project repository"
+        uses: actions/checkout@v3
+      # At present the stock setup-python action fails on Linux/aarch64
+      # Conditional steps below workaroud this by using deadsnakes for that case only
+      - name: "Install Python for ARM on Linux"
+        if: ${{ runner.arch == 'arm64' && runner.os == 'Linux' }}
+        uses: deadsnakes/action@v3.0.1
+        with:
+          python-version: '3.8'
+      - name: "Install Python cases other than ARM on Linux"
+        if: ${{ ! (runner.arch == 'arm64' && runner.os == 'Linux') }}
+        uses: actions/setup-python@v4
+        with:
+          python-version: '3.8'
+      - name: "Print Python version"
+        run: python3 --version
+      - name: "Install shiv"
+        run: pip install shiv
+      - name: "Generate build version file"
+        run: ./scripts/create_build_tag_file.sh
+      - name: "Build local shiv package"
+        run: ./scripts/build_shiv_package.sh
+      - name: Start dockerd # Also needed until we can incorporate into the executor
+        run: |
+          dockerd -H $DOCKER_HOST --userland-proxy=false &
+          sleep 5
+      - name: "Run webapp tests"
+        run: ./tests/webapp-test/run-webapp-test.sh

stack_orchestrator/build/build_containers.py

@@ -33,6 +33,73 @@ from stack_orchestrator.base import get_npm_registry_url
 # TODO: find a place for this
 #    epilog="Config provided either in .env or settings.ini or env vars: CERC_REPO_BASE_DIR (defaults to ~/cerc)"
 
+def make_container_build_env(dev_root_path: str,
+                             container_build_dir: str,
+                             debug: bool,
+                             force_rebuild: bool,
+                             extra_build_args: str):
+    container_build_env = {
+        "CERC_NPM_REGISTRY_URL": get_npm_registry_url(),
+        "CERC_GO_AUTH_TOKEN": config("CERC_GO_AUTH_TOKEN", default=""),
+        "CERC_NPM_AUTH_TOKEN": config("CERC_NPM_AUTH_TOKEN", default=""),
+        "CERC_REPO_BASE_DIR": dev_root_path,
+        "CERC_CONTAINER_BASE_DIR": container_build_dir,
+        "CERC_HOST_UID": f"{os.getuid()}",
+        "CERC_HOST_GID": f"{os.getgid()}",
+        "DOCKER_BUILDKIT": config("DOCKER_BUILDKIT", default="0")
+    }
+    container_build_env.update({"CERC_SCRIPT_DEBUG": "true"} if debug else {})
+    container_build_env.update({"CERC_FORCE_REBUILD": "true"} if force_rebuild else {})
+    container_build_env.update({"CERC_CONTAINER_EXTRA_BUILD_ARGS": extra_build_args} if extra_build_args else {})
+    docker_host_env = os.getenv("DOCKER_HOST")
+    if docker_host_env:
+        container_build_env.update({"DOCKER_HOST": docker_host_env})
+
+    return container_build_env
+
+
+def process_container(container,
+                      container_build_dir: str,
+                      container_build_env: dict,
+                      dev_root_path: str,
+                      quiet: bool,
+                      verbose: bool,
+                      dry_run: bool,
+                      continue_on_error: bool,
+                      ):
+    if not quiet:
+        print(f"Building: {container}")
+    build_dir = os.path.join(container_build_dir, container.replace("/", "-"))
+    build_script_filename = os.path.join(build_dir, "build.sh")
+    if verbose:
+        print(f"Build script filename: {build_script_filename}")
+    if os.path.exists(build_script_filename):
+        build_command = build_script_filename
+    else:
+        if verbose:
+            print(f"No script file found: {build_script_filename}, using default build script")
+        repo_dir = container.split('/')[1]
+        # TODO: make this less of a hack -- should be specified in some metadata somewhere
+        # Check if we have a repo for this container. If not, set the context dir to the container-build subdir
+        repo_full_path = os.path.join(dev_root_path, repo_dir)
+        repo_dir_or_build_dir = repo_full_path if os.path.exists(repo_full_path) else build_dir
+        build_command = os.path.join(container_build_dir,
+                                     "default-build.sh") + f" {container}:local {repo_dir_or_build_dir}"
+    if not dry_run:
+        if verbose:
+            print(f"Executing: {build_command} with environment: {container_build_env}")
+        build_result = subprocess.run(build_command, shell=True, env=container_build_env)
+        if verbose:
+            print(f"Return code is: {build_result.returncode}")
+        if build_result.returncode != 0:
+            print(f"Error running build for {container}")
+            if not continue_on_error:
+                print("FATAL Error: container build failed and --continue-on-error not set, exiting")
+                sys.exit(1)
+            else:
+                print("****** Container Build Error, continuing because --continue-on-error is set")
+    else:
+        print("Skipped")
 
 @click.command()
 @click.option('--include', help="only build these containers")
@@ -83,61 +150,16 @@ def command(ctx, include, exclude, force_rebuild, extra_build_args):
         if stack:
             print(f"Stack: {stack}")
 
-    # TODO: make this configurable
-    container_build_env = {
-        "CERC_NPM_REGISTRY_URL": get_npm_registry_url(),
-        "CERC_GO_AUTH_TOKEN": config("CERC_GO_AUTH_TOKEN", default=""),
-        "CERC_NPM_AUTH_TOKEN": config("CERC_NPM_AUTH_TOKEN", default=""),
-        "CERC_REPO_BASE_DIR": dev_root_path,
-        "CERC_CONTAINER_BASE_DIR": container_build_dir,
-        "CERC_HOST_UID": f"{os.getuid()}",
-        "CERC_HOST_GID": f"{os.getgid()}",
-        "DOCKER_BUILDKIT": config("DOCKER_BUILDKIT", default="0")
-    }
-    container_build_env.update({"CERC_SCRIPT_DEBUG": "true"} if debug else {})
-    container_build_env.update({"CERC_FORCE_REBUILD": "true"} if force_rebuild else {})
-    container_build_env.update({"CERC_CONTAINER_EXTRA_BUILD_ARGS": extra_build_args} if extra_build_args else {})
-    docker_host_env = os.getenv("DOCKER_HOST")
-    if docker_host_env:
-        container_build_env.update({"DOCKER_HOST": docker_host_env})
-
-    def process_container(container):
-        if not quiet:
-            print(f"Building: {container}")
-        build_dir = os.path.join(container_build_dir, container.replace("/", "-"))
-        build_script_filename = os.path.join(build_dir, "build.sh")
-        if verbose:
-            print(f"Build script filename: {build_script_filename}")
-        if os.path.exists(build_script_filename):
-            build_command = build_script_filename
-        else:
-            if verbose:
-                print(f"No script file found: {build_script_filename}, using default build script")
-            repo_dir = container.split('/')[1]
-            # TODO: make this less of a hack -- should be specified in some metadata somewhere
-            # Check if we have a repo for this container. If not, set the context dir to the container-build subdir
-            repo_full_path = os.path.join(dev_root_path, repo_dir)
-            repo_dir_or_build_dir = repo_full_path if os.path.exists(repo_full_path) else build_dir
-            build_command = os.path.join(container_build_dir, "default-build.sh") + f" {container}:local {repo_dir_or_build_dir}"
-        if not dry_run:
-            if verbose:
-                print(f"Executing: {build_command} with environment: {container_build_env}")
-            build_result = subprocess.run(build_command, shell=True, env=container_build_env)
-            if verbose:
-                print(f"Return code is: {build_result.returncode}")
-            if build_result.returncode != 0:
-                print(f"Error running build for {container}")
-                if not continue_on_error:
-                    print("FATAL Error: container build failed and --continue-on-error not set, exiting")
-                    sys.exit(1)
-                else:
-                    print("****** Container Build Error, continuing because --continue-on-error is set")
-        else:
-            print("Skipped")
+    container_build_env = make_container_build_env(dev_root_path,
+                                                   container_build_dir,
+                                                   debug,
+                                                   force_rebuild,
+                                                   extra_build_args)
 
     for container in containers_in_scope:
         if include_exclude_check(container, include, exclude):
-            process_container(container)
+            process_container(container, container_build_dir, container_build_env,
+                              dev_root_path, quiet, verbose, dry_run, continue_on_error)
         else:
             if verbose:
                 print(f"Excluding: {container}")

stack_orchestrator/build/build_webapp.py

@@ -0,0 +1,76 @@
+# Copyright © 2022, 2023 Vulcanize
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http:#www.gnu.org/licenses/>.
+
+# Builds webapp containers
+
+# env vars:
+# CERC_REPO_BASE_DIR defaults to ~/cerc
+
+# TODO: display the available list of containers; allow re-build of either all or specific containers
+
+import os
+from decouple import config
+import click
+from pathlib import Path
+from stack_orchestrator.build import build_containers
+
+
+@click.command()
+@click.option('--base-container', default="cerc/nextjs-base")
+@click.option('--source-repo', help="directory containing the webapp to build", required=True)
+@click.option("--force-rebuild", is_flag=True, default=False, help="Override dependency checking -- always rebuild")
+@click.option("--extra-build-args", help="Supply extra arguments to build")
+@click.pass_context
+def command(ctx, base_container, source_repo, force_rebuild, extra_build_args):
+    '''build the specified webapp container'''
+
+    quiet = ctx.obj.quiet
+    verbose = ctx.obj.verbose
+    dry_run = ctx.obj.dry_run
+    debug = ctx.obj.debug
+    local_stack = ctx.obj.local_stack
+    stack = ctx.obj.stack
+    continue_on_error = ctx.obj.continue_on_error
+
+    # See: https://stackoverflow.com/questions/25389095/python-get-path-of-root-project-structure
+    container_build_dir = Path(__file__).absolute().parent.parent.joinpath("data", "container-build")
+
+    if local_stack:
+        dev_root_path = os.getcwd()[0:os.getcwd().rindex("stack-orchestrator")]
+        print(f'Local stack dev_root_path (CERC_REPO_BASE_DIR) overridden to: {dev_root_path}')
+    else:
+        dev_root_path = os.path.expanduser(config("CERC_REPO_BASE_DIR", default="~/cerc"))
+
+    if not quiet:
+        print(f'Dev Root is: {dev_root_path}')
+
+    # First build the base container.
+    container_build_env = build_containers.make_container_build_env(dev_root_path, container_build_dir, debug,
+                                                                    force_rebuild, extra_build_args)
+
+    build_containers.process_container(base_container, container_build_dir, container_build_env, dev_root_path, quiet,
+                                       verbose, dry_run, continue_on_error)
+
+
+    # Now build the target webapp.  We use the same build script, but with a different Dockerfile and work dir.
+    container_build_env["CERC_CONTAINER_BUILD_WORK_DIR"] = os.path.abspath(source_repo)
+    container_build_env["CERC_CONTAINER_BUILD_DOCKERFILE"] = os.path.join(container_build_dir,
+                                                                    base_container.replace("/", "-"),
+                                                                    "Dockerfile.webapp")
+    webapp_name = os.path.abspath(source_repo).split(os.path.sep)[-1]
+    container_build_env["CERC_CONTAINER_BUILD_TAG"] = f"cerc/{webapp_name}:local"
+
+    build_containers.process_container(base_container, container_build_dir, container_build_env, dev_root_path, quiet,
+                                       verbose, dry_run, continue_on_error)

stack_orchestrator/data/container-build/cerc-nextjs-base/Dockerfile

@@ -0,0 +1,55 @@
+# Originally from: https://github.com/devcontainers/images/blob/main/src/javascript-node/.devcontainer/Dockerfile
+# [Choice] Node.js version (use -bullseye variants on local arm64/Apple Silicon): 18, 16, 14, 18-bullseye, 16-bullseye, 14-bullseye, 18-buster, 16-buster, 14-buster
+ARG VARIANT=18-bullseye
+FROM node:${VARIANT}
+
+ARG USERNAME=node
+ARG NPM_GLOBAL=/usr/local/share/npm-global
+
+# Add NPM global to PATH.
+ENV PATH=${NPM_GLOBAL}/bin:${PATH}
+# Prevents npm from printing version warnings
+ENV NPM_CONFIG_UPDATE_NOTIFIER=false
+
+RUN \
+    # Configure global npm install location, use group to adapt to UID/GID changes
+    if ! cat /etc/group | grep -e "^npm:" > /dev/null 2>&1; then groupadd -r npm; fi \
+    && usermod -a -G npm ${USERNAME} \
+    && umask 0002 \
+    && mkdir -p ${NPM_GLOBAL} \
+    && touch /usr/local/etc/npmrc \
+    && chown ${USERNAME}:npm ${NPM_GLOBAL} /usr/local/etc/npmrc \
+    && chmod g+s ${NPM_GLOBAL} \
+    && npm config -g set prefix ${NPM_GLOBAL} \
+    && su ${USERNAME} -c "npm config -g set prefix ${NPM_GLOBAL}" \
+    # Install eslint
+    && su ${USERNAME} -c "umask 0002 && npm install -g eslint" \
+    && npm cache clean --force > /dev/null 2>&1
+
+# [Optional] Uncomment this section to install additional OS packages.
+RUN apt-get update && export DEBIAN_FRONTEND=noninteractive \
+    && apt-get -y install --no-install-recommends jq gettext-base
+
+# [Optional] Uncomment if you want to install an additional version of node using nvm
+# ARG EXTRA_NODE_VERSION=10
+# RUN su node -c "source /usr/local/share/nvm/nvm.sh && nvm install ${EXTRA_NODE_VERSION}"
+
+# We do this to get a yq binary from the published container, for the correct architecture we're building here
+# COPY --from=docker.io/mikefarah/yq:latest /usr/bin/yq /usr/local/bin/yq
+
+COPY /scripts /scripts
+
+# [Optional] Uncomment if you want to install more global node modules
+# RUN su node -c "npm install -g <your-package-list-here>"
+
+# RUN mkdir -p /config
+# COPY ./config.yml /config
+
+# Install simple web server for now (use nginx perhaps later)
+# RUN yarn global add http-server
+
+# Expose port for http
+EXPOSE 3000
+
+# Default command sleeps forever so docker doesn't kill it
+CMD ["/scripts/start-serving-app.sh"]

stack_orchestrator/data/container-build/cerc-nextjs-base/Dockerfile.webapp

@@ -0,0 +1,5 @@
+FROM cerc/nextjs-base:local
+WORKDIR /app
+COPY . .
+RUN rm -rf node_modules build .next*
+RUN /scripts/build-app.sh /app

stack_orchestrator/data/container-build/cerc-nextjs-base/build.sh

@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+# Build cerc/laconic-registry-cli
+
+source ${CERC_CONTAINER_BASE_DIR}/build-base.sh
+
+# See: https://stackoverflow.com/a/246128/1701505
+SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
+
+CERC_CONTAINER_BUILD_WORK_DIR=${CERC_CONTAINER_BUILD_WORK_DIR:-$SCRIPT_DIR}
+CERC_CONTAINER_BUILD_DOCKERFILE=${CERC_CONTAINER_BUILD_DOCKERFILE:-$SCRIPT_DIR/Dockerfile}
+CERC_CONTAINER_BUILD_TAG=${CERC_CONTAINER_BUILD_TAG:-cerc/nextjs-base:local}
+
+docker build -t $CERC_CONTAINER_BUILD_TAG ${build_command_args} -f $CERC_CONTAINER_BUILD_DOCKERFILE $CERC_CONTAINER_BUILD_WORK_DIR

stack_orchestrator/data/container-build/cerc-nextjs-base/scripts/apply-runtime-env.sh

@@ -0,0 +1,36 @@
+#!/bin/bash
+
+if [ -n "$CERC_SCRIPT_DEBUG" ]; then
+    set -x
+fi
+
+WORK_DIR="${1:-./}"
+SRC_DIR="${2:-.next}"
+TRG_DIR="${3:-.next-r}"
+
+cd "${WORK_DIR}" || exit 1
+
+rm -rf "$TRG_DIR"
+mkdir -p "$TRG_DIR"
+cp -rp "$SRC_DIR" "$TRG_DIR/"
+
+if [ -f ".env" ]; then
+  TMP_ENV=`mktemp`
+  declare -px > $TMP_ENV
+  set -a
+  source .env
+  source $TMP_ENV
+  set +a
+  rm -f $TMP_ENV
+fi
+
+for f in $(find "$TRG_DIR" -regex ".*.[tj]sx?$" -type f | grep -v 'node_modules'); do
+  for e in $(cat "${f}" | tr -s '[:blank:]' '\n' | tr -s '[{},()]' '\n' | egrep -o '^"CERC_RUNTIME_ENV[^\"]+"$'); do
+    orig_name=$(echo -n "${e}" | sed 's/"//g')
+    cur_name=$(echo -n "${orig_name}" | sed 's/CERC_RUNTIME_ENV_//g')
+    cur_val=$(echo -n "\$${cur_name}" | envsubst)
+    esc_val=$(sed 's/[&/\]/\\&/g' <<< "$cur_val")
+    echo "$cur_name=$cur_val"
+    sed -i "s/$orig_name/$esc_val/g" $f
+  done
+done

stack_orchestrator/data/container-build/cerc-nextjs-base/scripts/build-app.sh

@@ -0,0 +1,63 @@
+#!/bin/bash
+
+if [ -n "$CERC_SCRIPT_DEBUG" ]; then
+    set -x
+fi
+
+SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
+
+WORK_DIR="${1:-/app}"
+
+cd "${WORK_DIR}" || exit 1
+
+cp next.config.js next.config.dist
+
+npm i -g js-beautify
+js-beautify next.config.dist > next.config.js
+
+npm install
+
+CONFIG_LINES=$(wc -l next.config.js | awk '{ print $1 }')
+MOD_EXPORTS_LINE=$(grep -n 'module.exports' next.config.js | cut -d':' -f1)
+
+head -$(( ${MOD_EXPORTS_LINE} - 1 )) next.config.js > next.config.js.1
+
+cat > next.config.js.2 <<EOF
+const webpack = require('webpack');
+
+let envMap;
+try {
+  // .env-list.json provides us a list of identifiers which should be replaced at runtime.
+  envMap = require('./.env-list.json').reduce((a, v) => {
+    a[v] = \`"CERC_RUNTIME_ENV_\${v.split(/\./).pop()}"\`;
+    return a;
+  }, {});
+} catch {
+  // If .env-list.json cannot be loaded, we are probably running in dev mode, so use process.env instead.
+  envMap = Object.keys(process.env).reduce((a, v) => {
+    if (v.startsWith('CERC_')) {
+      a[\`process.env.\${v}\`] = JSON.stringify(process.env[v]);
+    }
+    return a;
+  }, {});
+}
+EOF
+
+grep 'module.exports' next.config.js > next.config.js.3
+
+cat > next.config.js.4 <<EOF
+  webpack: (config) => {
+    config.plugins.push(new webpack.DefinePlugin(envMap));
+    return config;
+  },
+EOF
+
+tail -$(( ${CONFIG_LINES} - ${MOD_EXPORTS_LINE} + 1 )) next.config.js | grep -v 'process\.env\.' > next.config.js.5
+
+cat next.config.js.* | js-beautify > next.config.js
+rm next.config.js.*
+
+"${SCRIPT_DIR}/find-env.sh" "$(pwd)" > .env-list.json
+
+npm run build
+rm .env-list.json

stack_orchestrator/data/container-build/cerc-nextjs-base/scripts/find-env.sh

@@ -0,0 +1,24 @@
+#!/bin/bash
+
+if [ -n "$CERC_SCRIPT_DEBUG" ]; then
+    set -x
+fi
+
+WORK_DIR="${1:-./}"
+TMPF=$(mktemp)
+
+cd "$WORK_DIR" || exit 1
+
+for d in $(find . -maxdepth 1 -type d | grep -v '\./\.' | grep '/' | cut -d'/' -f2); do
+  egrep "/$d[/$]?" .gitignore >/dev/null 2>/dev/null
+  if [ $? -eq 0 ]; then
+    continue
+  fi
+
+  for f in $(find "$d" -regex ".*.[tj]sx?$" -type f); do
+    cat "$f" | tr -s '[:blank:]' '\n' | tr -s '[{},()]' '\n' | egrep -o 'process.env.[A-Za-z0-9_]+' >> $TMPF
+  done
+done
+
+cat $TMPF | sort -u | jq  --raw-input .  | jq --slurp .
+rm -f $TMPF

stack_orchestrator/data/container-build/cerc-nextjs-base/scripts/start-serving-app.sh

@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+if [ -n "$CERC_SCRIPT_DEBUG" ]; then
+    set -x
+fi
+
+SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
+
+CERC_WEBAPP_FILES_DIR="${CERC_WEBAPP_FILES_DIR:-/app}"
+cd "$CERC_WEBAPP_FILES_DIR"
+
+rm -rf .next-r
+"$SCRIPT_DIR/apply-runtime-env.sh" "`pwd`" .next .next-r
+npm start .next-r -p ${CERC_LISTEN_PORT:-3000}

stack_orchestrator/main.py

@@ -19,6 +19,7 @@ from stack_orchestrator.command_types import CommandOptions
 from stack_orchestrator.repos import setup_repositories
 from stack_orchestrator.build import build_containers
 from stack_orchestrator.build import build_npms
+from stack_orchestrator.build import build_webapp
 from stack_orchestrator.deploy import deploy
 from stack_orchestrator import version
 from stack_orchestrator.deploy import deployment
@@ -48,6 +49,7 @@ def cli(ctx, stack, quiet, verbose, dry_run, local_stack, debug, continue_on_err
 cli.add_command(setup_repositories.command, "setup-repositories")
 cli.add_command(build_containers.command, "build-containers")
 cli.add_command(build_npms.command, "build-npms")
+cli.add_command(build_webapp.command, "build-webapp")
 cli.add_command(deploy.command, "deploy")  # deploy is an alias for deploy-system
 cli.add_command(deploy.command, "deploy-system")
 cli.add_command(deployment.command, "deployment")

tests/webapp-test/run-webapp-test.sh

@@ -0,0 +1,62 @@
+#!/usr/bin/env bash
+set -e
+if [ -n "$CERC_SCRIPT_DEBUG" ]; then
+  set -x
+fi
+# Dump environment variables for debugging
+echo "Environment variables:"
+env
+# Test basic stack-orchestrator webapp
+echo "Running stack-orchestrator webapp test"
+# Bit of a hack, test the most recent package
+TEST_TARGET_SO=$( ls -t1 ./package/laconic-so* | head -1 )
+# Set a non-default repo dir
+export CERC_REPO_BASE_DIR=~/stack-orchestrator-test/repo-base-dir
+echo "Testing this package: $TEST_TARGET_SO"
+echo "Test version command"
+reported_version_string=$( $TEST_TARGET_SO version )
+echo "Version reported is: ${reported_version_string}"
+echo "Cloning repositories into: $CERC_REPO_BASE_DIR"
+rm -rf $CERC_REPO_BASE_DIR
+mkdir -p $CERC_REPO_BASE_DIR
+git clone https://git.vdb.to/cerc-io/test-progressive-web-app.git $CERC_REPO_BASE_DIR/test-progressive-web-app
+
+# Test webapp command execution
+$TEST_TARGET_SO build-webapp --source-repo $CERC_REPO_BASE_DIR/test-progressive-web-app
+
+UUID=`uuidgen`
+
+set +e
+
+CONTAINER_ID=$(docker run -p 3000:3000 -d cerc/test-progressive-web-app:local)
+sleep 3
+wget -O test.before -m http://localhost:3000
+
+docker remove -f $CONTAINER_ID
+
+CONTAINER_ID=$(docker run -p 3000:3000 -e CERC_WEBAPP_DEBUG=$UUID -d cerc/test-progressive-web-app:local)
+sleep 3
+wget -O test.after -m http://localhost:3000
+
+docker remove -f $CONTAINER_ID
+
+echo "###########################################################################"
+echo ""
+
+grep "$UUID" test.before > /dev/null
+if [ $? -ne 1 ]; then
+  echo "BEFORE: FAILED"
+  exit 1
+else
+  echo "BEFORE: PASSED"
+fi
+
+grep "`uuidgen`" test.after > /dev/null
+if [ $? -ne 0 ]; then
+  echo "AFTER: FAILED"
+  exit 1
+else
+  echo "AFTER: PASSED"
+fi
+
+exit 0