From 515bd44e135204616b031fb459fca4f9440bf2ba Mon Sep 17 00:00:00 2001
From: Paramtamtam <7326800+tarampampam@users.noreply.github.com>
Date: Tue, 13 Apr 2021 18:55:03 +0500
Subject: [PATCH] Source code refactored (#7)

---
 .dockerignore                                 |   8 +-
 .github/workflows/release.yml                 |  42 ++--
 .github/workflows/tests.yml                   |  37 +++-
 .gitignore                                    |   9 -
 CHANGELOG.md                                  |  13 ++
 Dockerfile                                    |  49 +++--
 Makefile                                      |  13 +-
 README.md                                     |  81 ++++----
 bin/generator.js                              |  71 -------
 docker-compose.yml                            |   5 +-
 .../100-setup-error-pages.sh                  |  41 ++++
 docker/docker-entrypoint.sh                   |  25 ---
 generator/.gitignore                          |   9 +
 generator/generator.js                        | 130 +++++++++++++
 package.json => generator/package.json        |   2 +-
 generator/yarn.lock                           | 109 +++++++++++
 static/favicon.ico                            |   0
 static/robots.txt                             |   2 -
 yarn.lock                                     | 181 ------------------
 19 files changed, 455 insertions(+), 372 deletions(-)
 delete mode 100755 bin/generator.js
 create mode 100755 docker/docker-entrypoint.d/100-setup-error-pages.sh
 delete mode 100755 docker/docker-entrypoint.sh
 create mode 100644 generator/.gitignore
 create mode 100755 generator/generator.js
 rename package.json => generator/package.json (87%)
 create mode 100644 generator/yarn.lock
 delete mode 100644 static/favicon.ico
 delete mode 100644 static/robots.txt
 delete mode 100644 yarn.lock

diff --git a/.dockerignore b/.dockerignore
index c21a610..da0174a 100644
--- a/.dockerignore
+++ b/.dockerignore
@@ -1,3 +1,7 @@
+.dockerignore
+.github
+.git
+.gitignore
+/generator/node_modules
+/generator/*.log
 /out
-/node_modules
-*.log
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 6517239..2ca7fe8 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -15,7 +15,7 @@ jobs:
       - name: Setup NodeJS
         uses: actions/setup-node@v1 # Action page: <https://github.com/actions/setup-node>
         with:
-          node-version: 12
+          node-version: 15
 
       - uses: actions/cache@v2
         with:
@@ -23,13 +23,11 @@ jobs:
           key: ${{ runner.os }}-yarn-${{ hashFiles('**/yarn.lock') }}
 
       - name: Install dependencies
+        working-directory: generator
         run: yarn install
 
       - name: Generate pages
-        run: ./bin/generator.js -c ./config.json -o ./out
-
-      - name: Copy static files
-        run: cp ./static/* ./out
+        run: ./generator/generator.js -i -c ./config.json -o ./out
 
       - name: Upload artifact
         uses: actions/upload-artifact@v2
@@ -68,21 +66,31 @@ jobs:
     steps:
       - name: Check out code
         uses: actions/checkout@v2
-        with:
-          fetch-depth: 1
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v1 # Action page: <https://github.com/docker/setup-qemu-action>
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1 # Action page: <https://github.com/docker/setup-buildx-action>
+
+      - name: Docker login in default registry
+        run: echo "${{ secrets.DOCKER_PASSWORD }}" | docker login -u "${{ secrets.DOCKER_LOGIN }}" --password-stdin
+
+      - name: Docker login in ghcr.io # Auth docs: <https://git.io/JLDaw>
+        run: echo "${{ secrets.GHCR_PASSWORD }}" | docker login ghcr.io -u tarampampam --password-stdin
 
       - name: Generate builder values
         id: values
         run: echo "::set-output name=version::${GITHUB_REF##*/[vV]}" # `/refs/tags/v1.2.3` -> `1.2.3`
 
-      - name: Make docker login
-        run: echo "${{ secrets.DOCKER_PASSWORD }}" | docker login -u "${{ secrets.DOCKER_LOGIN }}" --password-stdin &> /dev/null
-
       - name: Build image
-        run: docker build --tag "tarampampam/error-pages:${{ steps.values.outputs.version }}" --tag "tarampampam/error-pages:latest" -f ./Dockerfile .
-
-      - name: Push version image
-        run: docker push "tarampampam/error-pages:${{ steps.values.outputs.version }}"
-
-      - name: Push latest image
-        run: docker push "tarampampam/error-pages:latest"
+        run: |
+          docker buildx build \
+            --platform "linux/amd64,linux/386,linux/arm64/v8,linux/arm/v6,linux/arm/v7" \
+            --tag "tarampampam/error-pages:${{ steps.values.outputs.version }}" \
+            --tag "tarampampam/error-pages:latest" \
+            --tag "ghcr.io/tarampampam/error-pages:${{ steps.values.outputs.version }}" \
+            --tag "ghcr.io/tarampampam/error-pages:latest" \
+            --file ./Dockerfile \
+            --push \
+            .
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index da431bb..e03550f 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -6,9 +6,25 @@ on:
       - master
     tags-ignore:
       - '**'
+    paths-ignore:
+      - '**.md'
   pull_request:
+    paths-ignore:
+      - '**.md'
 
 jobs: # Docs: <https://git.io/JvxXE>
+  gitleaks:
+    name: Gitleaks
+    runs-on: ubuntu-20.04
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      - name: Check for GitLeaks
+        uses: zricethezav/gitleaks-action@v1.5.0 # Action page: <https://github.com/zricethezav/gitleaks-action>
+
   generate:
     name: Try to run generator
     runs-on: ubuntu-20.04
@@ -19,7 +35,7 @@ jobs: # Docs: <https://git.io/JvxXE>
       - name: Setup NodeJS
         uses: actions/setup-node@v1 # Action page: <https://github.com/actions/setup-node>
         with:
-          node-version: 12
+          node-version: 15
 
       - uses: actions/cache@v2
         with:
@@ -27,13 +43,19 @@ jobs: # Docs: <https://git.io/JvxXE>
           key: ${{ runner.os }}-yarn-${{ hashFiles('**/yarn.lock') }}
 
       - name: Install dependencies
+        working-directory: generator
         run: yarn install
 
       - name: Run generator
-        run: ./bin/generator.js -c ./config.json -o ./out
+        run: ./generator/generator.js -i -c ./config.json -o ./out
 
       - name: Test file creation
-        run: test -f ./out/ghost/404.html
+        run: |
+          test -f ./out/index.html
+          test -f ./out/ghost/404.html
+          test -f ./out/l7-dark/404.html
+          test -f ./out/l7-light/404.html
+          test -f ./out/shuffle/404.html
 
   docker-build:
     name: Build docker image
@@ -45,8 +67,15 @@ jobs: # Docs: <https://git.io/JvxXE>
       - name: Build docker image
         run: docker build -f ./Dockerfile --tag image:local .
 
+      - name: Scan image
+        uses: anchore/scan-action@v2 # action page: <https://github.com/anchore/scan-action>
+        with:
+          image: image:local
+          fail-build: true
+          severity-cutoff: medium # negligible, low, medium, high or critical
+
       - name: Run docker image
-        run: docker run --rm -d -p "8080:8080" -e "TEMPLATE_NAME=ghost" image:local
+        run: docker run --rm -d -p "8080:8080/tcp" -e "TEMPLATE_NAME=ghost" image:local
 
       - name: Pause
         run: sleep 2
diff --git a/.gitignore b/.gitignore
index 1d0d539..a664320 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,17 +2,8 @@
 /.vscode
 /.idea
 
-## Vendors
-/node_modules
-
-## Lock files (use yarn only)
-/package-lock.json
-
 ## Dist
 /out
 
 ## Temp dirs & trash
-/npm-debug.log
-/yarn-error.log
 .DS_Store
-.env*
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3e2bf56..12cb78d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,19 @@ All notable changes to this package will be documented in this file.
 
 The format is based on [Keep a Changelog][keepachangelog] and this project adheres to [Semantic Versioning][semver].
 
+## UNRELEASED
+
+### Changed
+
+- Repository files structure
+- Nginx updated from `1.18` up to `1.19` in docker image
+- Docker image now uses default `nginx` entrypoint scripts and command
+
+### Added
+
+- Support for `linux/386`, `linux/arm64/v8`, `linux/arm/v6` and `linux/arm/v7` platforms for docker image
+- Random template selecting (use `random` as a template name) for docker image
+
 ## v1.4.0
 
 ### Added
diff --git a/Dockerfile b/Dockerfile
index c159ebb..a35e463 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,22 +1,45 @@
 # Image page: <https://hub.docker.com/_/node>
-FROM node:12.16.2-alpine as builder
+FROM node:15.14-alpine as builder
 
+# copy required sources into builder image
+COPY ./generator /src/generator
+COPY ./config.json /src
+COPY ./templates /src/templates
+COPY ./docker /src/docker
+
+# install generator dependencies
+WORKDIR /src/generator
+RUN yarn install --frozen-lockfile --no-progress --non-interactive
+
+# run generator
 WORKDIR /src
+RUN ./generator/generator.js -c ./config.json -o ./out
 
-COPY . .
-
+# prepare rootfs for runtime
+RUN mkdir /tmp/rootfs
+WORKDIR /tmp/rootfs
 RUN set -x \
-    && yarn install --frozen-lockfile \
-    && ./bin/generator.js -c ./config.json -o ./out
+    && mkdir -p \
+        ./docker-entrypoint.d \
+        ./etc/nginx/conf.d \
+        ./opt \
+    && mv /src/out ./opt/html \
+    && echo -e "User-agent: *\nDisallow: /\n" > ./opt/html/robots.txt \
+    && touch ./opt/html/favicon.ico \
+    && mv /src/docker/docker-entrypoint.d/* ./docker-entrypoint.d \
+    && mv /src/docker/nginx-server.conf ./etc/nginx/conf.d/default.conf
 
 # Image page: <https://hub.docker.com/_/nginx>
-FROM nginx:1.18-alpine
+FROM --platform=${TARGETPLATFORM:-linux/amd64} nginx:1.19-alpine as runtime
 
-COPY --from=builder --chown=nginx /src/docker/docker-entrypoint.sh /docker-entrypoint.sh
-COPY --from=builder --chown=nginx /src/docker/nginx-server.conf /etc/nginx/conf.d/default.conf
-COPY --from=builder --chown=nginx /src/static /opt/html
-COPY --from=builder --chown=nginx /src/out /opt/html
+LABEL \
+    # Docs: <https://github.com/opencontainers/image-spec/blob/master/annotations.md>
+    org.opencontainers.image.title="error-pages" \
+    org.opencontainers.image.description="Static server error pages in docker image" \
+    org.opencontainers.image.url="https://github.com/tarampampam/error-pages" \
+    org.opencontainers.image.source="https://github.com/tarampampam/error-pages" \
+    org.opencontainers.image.vendor="tarampampam" \
+    org.opencontainers.image.licenses="MIT"
 
-ENTRYPOINT ["/docker-entrypoint.sh"]
-
-CMD ["nginx", "-g", "daemon off;"]
+# Import from builder
+COPY --from=builder --chown=nginx /tmp/rootfs /
diff --git a/Makefile b/Makefile
index 5362a53..ef28896 100644
--- a/Makefile
+++ b/Makefile
@@ -4,9 +4,6 @@
 
 SHELL = /bin/sh
 
-DOCKER_BIN = $(shell command -v docker 2> /dev/null)
-DC_BIN = $(shell command -v docker-compose 2> /dev/null)
-
 DC_RUN_ARGS = --rm --user "$(shell id -u):$(shell id -g)"
 APP_NAME = $(notdir $(CURDIR))
 
@@ -18,15 +15,15 @@ help: ## Show this help
 	@awk 'BEGIN {FS = ":.*?## "} /^[a-zA-Z_-]+:.*?## / {printf "  \033[32m%-15s\033[0m %s\n", $$1, $$2}' $(MAKEFILE_LIST)
 
 install: ## Install all dependencies
-	$(DC_BIN) run $(DC_RUN_ARGS) app yarn install
+	docker-compose run $(DC_RUN_ARGS) -w "/src/generator" node yarn install --frozen-lockfile --no-progress --non-interactive
 
 gen: ## Generate error pages
-	$(DC_BIN) run $(DC_RUN_ARGS) app nodejs ./bin/generator.js -c ./config.json -o ./out
+	docker-compose run $(DC_RUN_ARGS) node nodejs ./generator/generator.js -i -c ./config.json -o ./out
 
 preview: ## Build docker image and start preview
-	$(DOCKER_BIN) build -f ./Dockerfile -t $(APP_NAME):local .
+	docker build -f ./Dockerfile -t $(APP_NAME):local .
 	@printf "\n   \e[30;42m %s \033[0m\n\n" 'Now open in your favorite browser <http://127.0.0.1:8081> and press CTRL+C for stopping'
-	$(DOCKER_BIN) run --rm -i -p 8081:8080 -e "TEMPLATE_NAME=l7-light" $(APP_NAME):local
+	docker run --rm -i -p 8081:8080 -e "TEMPLATE_NAME=random" $(APP_NAME):local
 
 shell: ## Start shell into container with node
-	$(DC_BIN) run $(DC_RUN_ARGS) app sh
+	docker-compose run $(DC_RUN_ARGS) node sh
diff --git a/README.md b/README.md
index 89fa708..a53a8fa 100644
--- a/README.md
+++ b/README.md
@@ -11,45 +11,23 @@
 
 This repository contains:
 
-- A very simple [generator](./bin/generator.js) _(`nodejs`)_ for HTTP error pages _(like `404: Not found`)_ with different templates supports
-- Dockerfile for [docker image][link_docker_hub] with generated pages and `nginx` as web server
+- A very simple [generator](generator/generator.js) _(`nodejs`)_ for HTTP error pages _(like `404: Not found`)_ with different templates supports
+- Dockerfile for docker image ([docker hub][link_docker_hub], [ghcr.io][link_ghcr]) with generated pages and `nginx` as a web server
 
-Can be used for [Traefik error pages customization](https://docs.traefik.io/middlewares/errorpages/).
+**Can be used for [Traefik error pages customization](https://docs.traefik.io/middlewares/errorpages/)**.
 
-### Demo
+## Demo
 
-Generated pages (from the latest release) always [accessible here][link_branch_gh_pages] _(sources)_ and on GitHub pages [here][link_gh_pages].
-
-## Development
-
-> For project development we use `docker-ce` + `docker-compose`. Make sure you have them installed.
-
-Install `nodejs` dependencies:
-
-```bash
-$ make install
-```
-
-If you want to generate error pages on your machine _(after that look into output directory)_:
-
-```bash
-$ make gen
-```
-
-If you want to preview the pages using the Docker image:
-
-```bash
-$ make preview
-```
+Generated pages (from the latest release) always [accessible here][link_branch_gh_pages] _(sources)_ and on GitHub pages **[here][link_gh_pages]** _(live preview)_.
 
 ## Templates
 
    Name    | Preview
 :--------: | :-----:
-`ghost`    | ![ghost](https://hsto.org/webt/zg/ul/cv/zgulcvxqzhazoebxhg8kpxla8lk.png)
+`ghost`    | ![ghost](https://hsto.org/webt/ya/gy/qw/yagyqwcs8-uulrwboatmmd5jbwi.gif)
 `l7-light` | ![l7-light](https://hsto.org/webt/xc/iq/vt/xciqvty-aoj-rchfarsjhutpjny.png)
 `l7-dark`  | ![l7-dark](https://hsto.org/webt/s1/ih/yr/s1ihyrqs_y-sgraoimfhk6ypney.png)
-`shuffle`  | ![shuffle](https://habrastorage.org/webt/ck/gk/lj/ckgkljezwegq5rbcocalykfgv3u.png)
+`shuffle`  | ![shuffle](https://hsto.org/webt/m7/-p/az/m7-pazbcafvsemf47io5sqwwz8e.gif)
 
 ## Usage
 
@@ -61,22 +39,24 @@ Name            | Description
 --------------- | -----------
 `TEMPLATE_NAME` | (`ghost` by default) "default" pages template _(allows to use error pages without passing theme name in URL - `http://127.0.0.1/500.html` instead `http://127.0.0.1/ghost/500.html`)_
 
-### HTTP server for error pages serving only
+### Ready docker image
 
 Execute in your shell:
 
 ```bash
-$ docker run --rm -p "8082:8080" tarampampam/error-pages:1.4.0
+$ docker run --rm -p "8082:8080" tarampampam/error-pages:X.X.X
 ```
 
+> Important notice: do **not** use the `latest` image tag _(this is bad practice)_. Use versioned tag (like `1.2.3`) instead.
+
 And open in your browser `http://127.0.0.1:8082/ghost/400.html`.
 
-### Custom error pages for [nginx][link_nginx]
+### Custom error pages for your image with [nginx][link_nginx]
 
 You can build your own docker image with `nginx` and our error pages:
 
 ```nginx
-# File `./nginx.conf`
+# File `nginx.conf`
 
 server {
   listen      80;
@@ -102,27 +82,33 @@ server {
 ```
 
 ```dockerfile
+# File `Dockerfile`
+
 FROM nginx:1.18-alpine
 
 COPY --chown=nginx \
      ./nginx.conf /etc/nginx/conf.d/default.conf
 COPY --chown=nginx \
-     --from=tarampampam/error-pages:1.4.0 \
+     --from=tarampampam/error-pages:1.5.0 \
      /opt/html/ghost /usr/share/nginx/errorpages/_error-pages
 ```
 
+```shell
+$ docker build --tag your-nginx:local -f ./Dockerfile .
+```
+
 > More info about `error_page` directive can be [found here](http://nginx.org/en/docs/http/ngx_http_core_module.html#error_page).
 
 ### Custom error pages for [Traefik][link_traefik]
 
-Simple traefik (tested on `v2.2.1`) service configuration for usage in [docker swarm][link_swarm] (**change with your needs**):
+Simple traefik (tested on `v2.4.8`) service configuration for usage in [docker swarm][link_swarm] (**change with your needs**):
 
 ```yaml
 version: '3.4'
 
 services:
   error-pages:
-    image: tarampampam/error-pages:1.4.0
+    image: tarampampam/error-pages:1.5.0
     environment:
       TEMPLATE_NAME: l7-dark
     networks:
@@ -170,6 +156,28 @@ networks:
     external: true
 ```
 
+## Development
+
+> For project development we use `docker-ce` + `docker-compose`. Make sure you have them installed.
+
+Install "generator" dependencies:
+
+```bash
+$ make install
+```
+
+If you want to generate error pages on your machine _(after that look into the output directory)_:
+
+```bash
+$ make gen
+```
+
+If you want to preview the pages using the Docker image:
+
+```bash
+$ make preview
+```
+
 ## Changes log
 
 [![Release date][badge_release_date]][link_releases]
@@ -205,6 +213,7 @@ This is open-sourced software licensed under the [MIT License][link_license].
 [link_create_issue]:https://github.com/tarampampam/error-pages/issues/new
 [link_license]:https://github.com/tarampampam/error-pages/blob/master/LICENSE
 [link_docker_hub]:https://hub.docker.com/r/tarampampam/error-pages/
+[link_ghcr]:https://github.com/users/tarampampam/packages/container/package/error-pages
 [link_nginx]:http://nginx.org/
 [link_traefik]:https://docs.traefik.io/
 [link_swarm]:https://docs.docker.com/engine/swarm/
diff --git a/bin/generator.js b/bin/generator.js
deleted file mode 100755
index 0eb77db..0000000
--- a/bin/generator.js
+++ /dev/null
@@ -1,71 +0,0 @@
-#!/usr/bin/env node
-
-const fs = require('fs');
-const path = require('path');
-const yargs = require('yargs');
-
-const options = yargs
-    .usage('Usage: -c <config.json> -d <output-directory>')
-    .option("c", {alias: "config", describe: "config file path", type: "string", demandOption: true})
-    .option("o", {alias: "out", describe: "output directory path", type: "string", demandOption: true})
-    .argv;
-
-const configFile = options.config;
-const outDir = options.out;
-
-try {
-    // Make sure that config file exists
-    if (! fs.existsSync(configFile)) {
-        throw new Error(`Config file "${configFile}" was not found`);
-    }
-
-    // Create output directory (if needed)
-    if (!fs.existsSync(outDir)){
-        fs.mkdirSync(outDir);
-    }
-
-    // Read JSON config file and parse into object
-    const configContent = JSON.parse(fs.readFileSync(configFile));
-
-    // Loop over all defined templates in configuration file
-    configContent.templates.forEach((templateConfig) => {
-        // Make sure that template layout file exists
-        if (! fs.existsSync(templateConfig.path)) {
-            throw new Error(`Template "${templateConfig.name}" was not found in "${templateConfig.path}"`);
-        }
-
-        // Read layout content into memory prepare output directory for template
-        const layoutContent = String(fs.readFileSync(templateConfig.path));
-        const templateOutDir = path.join(outDir, templateConfig.name);
-
-        if (!fs.existsSync(templateOutDir)){
-            fs.mkdirSync(templateOutDir);
-        }
-
-        console.info(`Use template "${templateConfig.name}" located in "${templateConfig.path}"`);
-
-        // Loop over all pages
-        configContent.pages.forEach((pageConfig) => {
-            let outPath = path.join(templateOutDir, `${pageConfig.code}.${configContent.output.file_extension}`);
-
-            console.info(`  [${templateConfig.name}:${pageConfig.code}] Output: ${outPath}`);
-
-            // Make replaces
-            let result = layoutContent
-                .replace(/{{\s?code\s?}}/g, pageConfig.code)
-                .replace(/{{\s?message\s?}}/g, pageConfig.message)
-                .replace(/{{\s?description\s?}}/g, pageConfig.description);
-
-            // And write into result file
-            fs.writeFileSync(outPath, result, {
-                encoding: "utf8",
-                flag: "w+",
-                mode: 0o644
-            })
-        });
-    })
-} catch (err) {
-    console.error(err);
-
-    process.exit(1);
-}
diff --git a/docker-compose.yml b/docker-compose.yml
index 6038d0e..4575c36 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -4,8 +4,8 @@ volumes:
   tmp-data:
 
 services:
-  app:
-    image: node:12.16.2-alpine # Image page: <https://hub.docker.com/_/node>
+  node:
+    image: node:15.14-alpine # Image page: <https://hub.docker.com/_/node>
     working_dir: /src
     environment:
       HOME: /tmp
@@ -14,4 +14,3 @@ services:
       - /etc/passwd:/etc/passwd:ro
       - /etc/group:/etc/group:ro
       - .:/src:cached
-      - tmp-data:/tmp:cached
diff --git a/docker/docker-entrypoint.d/100-setup-error-pages.sh b/docker/docker-entrypoint.d/100-setup-error-pages.sh
new file mode 100755
index 0000000..3d28a26
--- /dev/null
+++ b/docker/docker-entrypoint.d/100-setup-error-pages.sh
@@ -0,0 +1,41 @@
+#!/usr/bin/env sh
+set -e
+
+# allows to use random template
+if [ ! -z "$TEMPLATE_NAME" ] && ([ "$TEMPLATE_NAME" = "random" ] || [ "$TEMPLATE_NAME" = "RANDOM" ]); then
+  # find all templates in directory (only template directories must be located in /opt/html)
+  allowed_templates=$(find /opt/html/* -maxdepth 1 -type d -exec basename {} \;);
+
+  # pick random template name
+  random_template_name=$(shuf -e -n1 $allowed_templates);
+
+  echo "$0: Use '$random_template_name' as randomly selected template";
+
+  TEMPLATE_NAME="$random_template_name"
+fi;
+
+TEMPLATE_NAME=${TEMPLATE_NAME:-ghost} # string|empty
+
+echo "$0: Set pages for template '$TEMPLATE_NAME' as default (make accessible in root directory)";
+
+# check for template existing
+if [ ! -d "/opt/html/$TEMPLATE_NAME" ]; then
+  echo >&3 "$0: Template '$TEMPLATE_NAME' was not found!";
+  exit 1;
+fi;
+
+# allows "direct access" to the error pages using URLs like "/500.html"
+ln -f -s "/opt/html/$TEMPLATE_NAME/"* /opt/html;
+
+# on `docker restart` next directory keep existing: <https://github.com/tarampampam/error-pages/issues/3>
+if [ -d /opt/html/nginx-error-pages ]; then
+  rm -Rf /opt/html/nginx-error-pages;
+fi;
+
+# next directory is required for easy nginx `error_page` usage
+mkdir /opt/html/nginx-error-pages;
+
+# use error pages from the template as "native" nginx error pages
+ln -f -s "/opt/html/$TEMPLATE_NAME/"* /opt/html/nginx-error-pages;
+
+exit 0
diff --git a/docker/docker-entrypoint.sh b/docker/docker-entrypoint.sh
deleted file mode 100755
index 1acee33..0000000
--- a/docker/docker-entrypoint.sh
+++ /dev/null
@@ -1,25 +0,0 @@
-#!/usr/bin/env sh
-set -e
-
-TEMPLATE_NAME=${TEMPLATE_NAME:-ghost} # string|empty
-
-if [ -n "$TEMPLATE_NAME" ]; then
-  echo "$0: set pages for template '$TEMPLATE_NAME' as default (make accessible in root directory)";
-
-  if [ ! -d "/opt/html/$TEMPLATE_NAME" ]; then
-    (>&2 echo "$0: template '$TEMPLATE_NAME' was not found!"); exit 1;
-  fi;
-
-  ln -f -s "/opt/html/$TEMPLATE_NAME/"* /opt/html;
-
-  # on `docker restart` next directory keep existing: <https://github.com/tarampampam/error-pages/issues/3>
-  if [ -d /opt/html/nginx-error-pages ]; then
-    rm -Rf /opt/html/nginx-error-pages;
-  fi;
-
-  # next directory is required for easy nginx `error_page` usage
-  mkdir /opt/html/nginx-error-pages;
-  ln -f -s "/opt/html/$TEMPLATE_NAME/"* /opt/html/nginx-error-pages;
-fi;
-
-exec "$@"
diff --git a/generator/.gitignore b/generator/.gitignore
new file mode 100644
index 0000000..b595b3a
--- /dev/null
+++ b/generator/.gitignore
@@ -0,0 +1,9 @@
+## Vendors
+/node_modules
+
+## Lock files (use yarn only)
+package-lock.json
+
+## Temp dirs & trash
+npm-debug.log
+yarn-error.log
diff --git a/generator/generator.js b/generator/generator.js
new file mode 100755
index 0000000..46cebed
--- /dev/null
+++ b/generator/generator.js
@@ -0,0 +1,130 @@
+#!/usr/bin/env node
+
+const fs = require('fs');
+const path = require('path');
+const yargs = require('yargs');
+
+const options = yargs
+    .usage('Usage: -c <config.json> -d <output-directory>')
+    .option("c", {alias: "config", describe: "config file path", type: "string", demandOption: true})
+    .option("o", {alias: "out", describe: "output directory path", type: "string", demandOption: true})
+    .option("i", {alias: "index", describe: "generate index page", type: "boolean"})
+    .argv;
+
+const configFile = options.config;
+const outDir = options.out;
+const generateIndexPage = options.index;
+
+const generated = {};
+
+try {
+    // Make sure that config file exists
+    if (!fs.existsSync(configFile)) {
+        throw new Error(`Config file "${configFile}" was not found`);
+    }
+
+    // Create output directory (if needed)
+    if (!fs.existsSync(outDir)) {
+        fs.mkdirSync(outDir);
+    }
+
+    // Read JSON config file and parse into object
+    const configContent = JSON.parse(fs.readFileSync(configFile));
+
+    // Loop over all defined templates in configuration file
+    configContent.templates.forEach((templateConfig) => {
+        // Make sure that template layout file exists
+        if (!fs.existsSync(templateConfig.path)) {
+            throw new Error(`Template "${templateConfig.name}" was not found in "${templateConfig.path}"`);
+        }
+
+        // Read layout content into memory prepare output directory for template
+        const layoutContent = String(fs.readFileSync(templateConfig.path));
+        const templateOutDir = path.join(outDir, templateConfig.name);
+
+        if (!fs.existsSync(templateOutDir)) {
+            fs.mkdirSync(templateOutDir);
+        }
+
+        console.info(`Use template "${templateConfig.name}" located in "${templateConfig.path}"`);
+
+        // Loop over all pages
+        configContent.pages.forEach((pageConfig) => {
+            let outFileName = pageConfig.code + "." + configContent.output.file_extension,
+                outPath = path.join(templateOutDir, outFileName);
+
+            console.info(`  [${templateConfig.name}:${pageConfig.code}] Output: ${outPath}`);
+
+            // Make replaces
+            let result = layoutContent
+                .replace(/{{\s?code\s?}}/g, pageConfig.code)
+                .replace(/{{\s?message\s?}}/g, pageConfig.message)
+                .replace(/{{\s?description\s?}}/g, pageConfig.description);
+
+            // And write into result file
+            fs.writeFileSync(outPath, result, {
+                encoding: "utf8",
+                flag: "w+",
+                mode: 0o644
+            });
+
+            if (!generated[templateConfig.name]) {
+                generated[templateConfig.name] = [];
+            }
+
+            generated[templateConfig.name].push({
+                code: pageConfig.code,
+                message: pageConfig.message,
+                description: pageConfig.description,
+                path: path.join(templateConfig.name, outFileName),
+            })
+        });
+    })
+
+    // Generate index page for the generated content
+    if (generateIndexPage === true) {
+        const indexPageFilePath = path.join(outDir, 'index.html');
+
+        let content = `<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="utf-8" />
+  <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no" />
+  <title>Error pages list</title>
+  <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.6.0/css/bootstrap.min.css"
+    integrity="sha512-P5MgMn1jBN01asBgU0z60Qk4QxiXo86+wlFahKrsQf37c9cro517WzVSPPV1tDKzhku2iJ2FVgL67wG03SGnNA=="
+    crossorigin="anonymous" />
+</head>
+<body>
+<main role="main" class="container">\n`;
+
+        Object.keys(generated).forEach(function(templateName) {
+            content += `<h2 class="mt-5">Template name: <code>` + templateName + `</code></h2>\n<ul class="mb-5">\n`;
+
+            generated[templateName].forEach((properties) => {
+                content += `  <li><a href="${properties.path}"><span class="badge badge-light">${properties.code}</span>: ${properties.message}</a></li>\n`;
+            })
+
+            content += `</ul>\n`;
+        });
+
+        content += `</main>
+<footer class="footer">
+  <div class="container text-center text-muted mt-3 mb-3">
+    For online documentation and support please refer to the <a href="https://github.com/tarampampam/error-pages">project repository</a>.
+  </div>
+</footer>
+</body>
+</html>`;
+
+        fs.writeFileSync(indexPageFilePath, content, {
+            encoding: "utf8",
+            flag: "w+",
+            mode: 0o644
+        });
+    }
+} catch (err) {
+    console.error(err);
+
+    process.exit(1);
+}
diff --git a/package.json b/generator/package.json
similarity index 87%
rename from package.json
rename to generator/package.json
index c338932..0bebd12 100644
--- a/package.json
+++ b/generator/package.json
@@ -5,6 +5,6 @@
         "url": "git://github.com/tarampampam/error-pages.git"
     },
     "dependencies": {
-        "yargs": "15.3"
+        "yargs": "16.2"
     }
 }
diff --git a/generator/yarn.lock b/generator/yarn.lock
new file mode 100644
index 0000000..7274f01
--- /dev/null
+++ b/generator/yarn.lock
@@ -0,0 +1,109 @@
+# THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
+# yarn lockfile v1
+
+
+ansi-regex@^5.0.0:
+  version "5.0.0"
+  resolved "https://registry.yarnpkg.com/ansi-regex/-/ansi-regex-5.0.0.tgz#388539f55179bf39339c81af30a654d69f87cb75"
+  integrity sha512-bY6fj56OUQ0hU1KjFNDQuJFezqKdrAyFdIevADiqrWHwSlbmBNMHp5ak2f40Pm8JTFyM2mqxkG6ngkHO11f/lg==
+
+ansi-styles@^4.0.0:
+  version "4.3.0"
+  resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-4.3.0.tgz#edd803628ae71c04c85ae7a0906edad34b648937"
+  integrity sha512-zbB9rCJAT1rbjiVDb2hqKFHNYLxgtk8NURxZ3IZwD3F6NtxbXZQCnnSi1Lkx+IDohdPlFp222wVALIheZJQSEg==
+  dependencies:
+    color-convert "^2.0.1"
+
+cliui@^7.0.2:
+  version "7.0.4"
+  resolved "https://registry.yarnpkg.com/cliui/-/cliui-7.0.4.tgz#a0265ee655476fc807aea9df3df8df7783808b4f"
+  integrity sha512-OcRE68cOsVMXp1Yvonl/fzkQOyjLSu/8bhPDfQt0e0/Eb283TKP20Fs2MqoPsr9SwA595rRCA+QMzYc9nBP+JQ==
+  dependencies:
+    string-width "^4.2.0"
+    strip-ansi "^6.0.0"
+    wrap-ansi "^7.0.0"
+
+color-convert@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/color-convert/-/color-convert-2.0.1.tgz#72d3a68d598c9bdb3af2ad1e84f21d896abd4de3"
+  integrity sha512-RRECPsj7iu/xb5oKYcsFHSppFNnsj/52OVTRKb4zP5onXwVF3zVmmToNcOfGC+CRDpfK/U584fMg38ZHCaElKQ==
+  dependencies:
+    color-name "~1.1.4"
+
+color-name@~1.1.4:
+  version "1.1.4"
+  resolved "https://registry.yarnpkg.com/color-name/-/color-name-1.1.4.tgz#c2a09a87acbde69543de6f63fa3995c826c536a2"
+  integrity sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA==
+
+emoji-regex@^8.0.0:
+  version "8.0.0"
+  resolved "https://registry.yarnpkg.com/emoji-regex/-/emoji-regex-8.0.0.tgz#e818fd69ce5ccfcb404594f842963bf53164cc37"
+  integrity sha512-MSjYzcWNOA0ewAHpz0MxpYFvwg6yjy1NG3xteoqz644VCo/RPgnr1/GGt+ic3iJTzQ8Eu3TdM14SawnVUmGE6A==
+
+escalade@^3.1.1:
+  version "3.1.1"
+  resolved "https://registry.yarnpkg.com/escalade/-/escalade-3.1.1.tgz#d8cfdc7000965c5a0174b4a82eaa5c0552742e40"
+  integrity sha512-k0er2gUkLf8O0zKJiAhmkTnJlTvINGv7ygDNPbeIsX/TJjGJZHuh9B2UxbsaEkmlEo9MfhrSzmhIlhRlI2GXnw==
+
+get-caller-file@^2.0.5:
+  version "2.0.5"
+  resolved "https://registry.yarnpkg.com/get-caller-file/-/get-caller-file-2.0.5.tgz#4f94412a82db32f36e3b0b9741f8a97feb031f7e"
+  integrity sha512-DyFP3BM/3YHTQOCUL/w0OZHR0lpKeGrxotcHWcqNEdnltqFwXVfhEBQ94eIo34AfQpo0rGki4cyIiftY06h2Fg==
+
+is-fullwidth-code-point@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/is-fullwidth-code-point/-/is-fullwidth-code-point-3.0.0.tgz#f116f8064fe90b3f7844a38997c0b75051269f1d"
+  integrity sha512-zymm5+u+sCsSWyD9qNaejV3DFvhCKclKdizYaJUuHA83RLjb7nSuGnddCHGv0hk+KY7BMAlsWeK4Ueg6EV6XQg==
+
+require-directory@^2.1.1:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/require-directory/-/require-directory-2.1.1.tgz#8c64ad5fd30dab1c976e2344ffe7f792a6a6df42"
+  integrity sha1-jGStX9MNqxyXbiNE/+f3kqam30I=
+
+string-width@^4.1.0, string-width@^4.2.0:
+  version "4.2.2"
+  resolved "https://registry.yarnpkg.com/string-width/-/string-width-4.2.2.tgz#dafd4f9559a7585cfba529c6a0a4f73488ebd4c5"
+  integrity sha512-XBJbT3N4JhVumXE0eoLU9DCjcaF92KLNqTmFCnG1pf8duUxFGwtP6AD6nkjw9a3IdiRtL3E2w3JDiE/xi3vOeA==
+  dependencies:
+    emoji-regex "^8.0.0"
+    is-fullwidth-code-point "^3.0.0"
+    strip-ansi "^6.0.0"
+
+strip-ansi@^6.0.0:
+  version "6.0.0"
+  resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-6.0.0.tgz#0b1571dd7669ccd4f3e06e14ef1eed26225ae532"
+  integrity sha512-AuvKTrTfQNYNIctbR1K/YGTR1756GycPsg7b9bdV9Duqur4gv6aKqHXah67Z8ImS7WEz5QVcOtlfW2rZEugt6w==
+  dependencies:
+    ansi-regex "^5.0.0"
+
+wrap-ansi@^7.0.0:
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/wrap-ansi/-/wrap-ansi-7.0.0.tgz#67e145cff510a6a6984bdf1152911d69d2eb9e43"
+  integrity sha512-YVGIj2kamLSTxw6NsZjoBxfSwsn0ycdesmc4p+Q21c5zPuZ1pl+NfxVdxPtdHvmNVOQ6XSYG4AUtyt/Fi7D16Q==
+  dependencies:
+    ansi-styles "^4.0.0"
+    string-width "^4.1.0"
+    strip-ansi "^6.0.0"
+
+y18n@^5.0.5:
+  version "5.0.8"
+  resolved "https://registry.yarnpkg.com/y18n/-/y18n-5.0.8.tgz#7f4934d0f7ca8c56f95314939ddcd2dd91ce1d55"
+  integrity sha512-0pfFzegeDWJHJIAmTLRP2DwHjdF5s7jo9tuztdQxAhINCdvS+3nGINqPd00AphqJR/0LhANUS6/+7SCb98YOfA==
+
+yargs-parser@^20.2.2:
+  version "20.2.7"
+  resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-20.2.7.tgz#61df85c113edfb5a7a4e36eb8aa60ef423cbc90a"
+  integrity sha512-FiNkvbeHzB/syOjIUxFDCnhSfzAL8R5vs40MgLFBorXACCOAEaWu0gRZl14vG8MR9AOJIZbmkjhusqBYZ3HTHw==
+
+yargs@16.2:
+  version "16.2.0"
+  resolved "https://registry.yarnpkg.com/yargs/-/yargs-16.2.0.tgz#1c82bf0f6b6a66eafce7ef30e376f49a12477f66"
+  integrity sha512-D1mvvtDG0L5ft/jGWkLpG1+m0eQxOfaBvTNELraWj22wSVUMWxZUvYgJYcKh6jGGIkJFhH4IZPQhR4TKpc8mBw==
+  dependencies:
+    cliui "^7.0.2"
+    escalade "^3.1.1"
+    get-caller-file "^2.0.5"
+    require-directory "^2.1.1"
+    string-width "^4.2.0"
+    y18n "^5.0.5"
+    yargs-parser "^20.2.2"
diff --git a/static/favicon.ico b/static/favicon.ico
deleted file mode 100644
index e69de29..0000000
diff --git a/static/robots.txt b/static/robots.txt
deleted file mode 100644
index 1f53798..0000000
--- a/static/robots.txt
+++ /dev/null
@@ -1,2 +0,0 @@
-User-agent: *
-Disallow: /
diff --git a/yarn.lock b/yarn.lock
deleted file mode 100644
index 4dbee62..0000000
--- a/yarn.lock
+++ /dev/null
@@ -1,181 +0,0 @@
-# THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
-# yarn lockfile v1
-
-
-"@types/color-name@^1.1.1":
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/@types/color-name/-/color-name-1.1.1.tgz#1c1261bbeaa10a8055bbc5d8ab84b7b2afc846a0"
-  integrity sha512-rr+OQyAjxze7GgWrSaJwydHStIhHq2lvY3BOC2Mj7KnzI7XK0Uw1TOOdI9lDoajEbSWLiYgoo4f1R51erQfhPQ==
-
-ansi-regex@^5.0.0:
-  version "5.0.0"
-  resolved "https://registry.yarnpkg.com/ansi-regex/-/ansi-regex-5.0.0.tgz#388539f55179bf39339c81af30a654d69f87cb75"
-  integrity sha512-bY6fj56OUQ0hU1KjFNDQuJFezqKdrAyFdIevADiqrWHwSlbmBNMHp5ak2f40Pm8JTFyM2mqxkG6ngkHO11f/lg==
-
-ansi-styles@^4.0.0:
-  version "4.2.1"
-  resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-4.2.1.tgz#90ae75c424d008d2624c5bf29ead3177ebfcf359"
-  integrity sha512-9VGjrMsG1vePxcSweQsN20KY/c4zN0h9fLjqAbwbPfahM3t+NL+M9HC8xeXG2I8pX5NoamTGNuomEUFI7fcUjA==
-  dependencies:
-    "@types/color-name" "^1.1.1"
-    color-convert "^2.0.1"
-
-camelcase@^5.0.0:
-  version "5.3.1"
-  resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-5.3.1.tgz#e3c9b31569e106811df242f715725a1f4c494320"
-  integrity sha512-L28STB170nwWS63UjtlEOE3dldQApaJXZkOI1uMFfzf3rRuPegHaHesyee+YxQ+W6SvRDQV6UrdOdRiR153wJg==
-
-cliui@^6.0.0:
-  version "6.0.0"
-  resolved "https://registry.yarnpkg.com/cliui/-/cliui-6.0.0.tgz#511d702c0c4e41ca156d7d0e96021f23e13225b1"
-  integrity sha512-t6wbgtoCXvAzst7QgXxJYqPt0usEfbgQdftEPbLL/cvv6HPE5VgvqCuAIDR0NgU52ds6rFwqrgakNLrHEjCbrQ==
-  dependencies:
-    string-width "^4.2.0"
-    strip-ansi "^6.0.0"
-    wrap-ansi "^6.2.0"
-
-color-convert@^2.0.1:
-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/color-convert/-/color-convert-2.0.1.tgz#72d3a68d598c9bdb3af2ad1e84f21d896abd4de3"
-  integrity sha512-RRECPsj7iu/xb5oKYcsFHSppFNnsj/52OVTRKb4zP5onXwVF3zVmmToNcOfGC+CRDpfK/U584fMg38ZHCaElKQ==
-  dependencies:
-    color-name "~1.1.4"
-
-color-name@~1.1.4:
-  version "1.1.4"
-  resolved "https://registry.yarnpkg.com/color-name/-/color-name-1.1.4.tgz#c2a09a87acbde69543de6f63fa3995c826c536a2"
-  integrity sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA==
-
-decamelize@^1.2.0:
-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/decamelize/-/decamelize-1.2.0.tgz#f6534d15148269b20352e7bee26f501f9a191290"
-  integrity sha1-9lNNFRSCabIDUue+4m9QH5oZEpA=
-
-emoji-regex@^8.0.0:
-  version "8.0.0"
-  resolved "https://registry.yarnpkg.com/emoji-regex/-/emoji-regex-8.0.0.tgz#e818fd69ce5ccfcb404594f842963bf53164cc37"
-  integrity sha512-MSjYzcWNOA0ewAHpz0MxpYFvwg6yjy1NG3xteoqz644VCo/RPgnr1/GGt+ic3iJTzQ8Eu3TdM14SawnVUmGE6A==
-
-find-up@^4.1.0:
-  version "4.1.0"
-  resolved "https://registry.yarnpkg.com/find-up/-/find-up-4.1.0.tgz#97afe7d6cdc0bc5928584b7c8d7b16e8a9aa5d19"
-  integrity sha512-PpOwAdQ/YlXQ2vj8a3h8IipDuYRi3wceVQQGYWxNINccq40Anw7BlsEXCMbt1Zt+OLA6Fq9suIpIWD0OsnISlw==
-  dependencies:
-    locate-path "^5.0.0"
-    path-exists "^4.0.0"
-
-get-caller-file@^2.0.1:
-  version "2.0.5"
-  resolved "https://registry.yarnpkg.com/get-caller-file/-/get-caller-file-2.0.5.tgz#4f94412a82db32f36e3b0b9741f8a97feb031f7e"
-  integrity sha512-DyFP3BM/3YHTQOCUL/w0OZHR0lpKeGrxotcHWcqNEdnltqFwXVfhEBQ94eIo34AfQpo0rGki4cyIiftY06h2Fg==
-
-is-fullwidth-code-point@^3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/is-fullwidth-code-point/-/is-fullwidth-code-point-3.0.0.tgz#f116f8064fe90b3f7844a38997c0b75051269f1d"
-  integrity sha512-zymm5+u+sCsSWyD9qNaejV3DFvhCKclKdizYaJUuHA83RLjb7nSuGnddCHGv0hk+KY7BMAlsWeK4Ueg6EV6XQg==
-
-locate-path@^5.0.0:
-  version "5.0.0"
-  resolved "https://registry.yarnpkg.com/locate-path/-/locate-path-5.0.0.tgz#1afba396afd676a6d42504d0a67a3a7eb9f62aa0"
-  integrity sha512-t7hw9pI+WvuwNJXwk5zVHpyhIqzg2qTlklJOf0mVxGSbe3Fp2VieZcduNYjaLDoy6p9uGpQEGWG87WpMKlNq8g==
-  dependencies:
-    p-locate "^4.1.0"
-
-p-limit@^2.2.0:
-  version "2.3.0"
-  resolved "https://registry.yarnpkg.com/p-limit/-/p-limit-2.3.0.tgz#3dd33c647a214fdfffd835933eb086da0dc21db1"
-  integrity sha512-//88mFWSJx8lxCzwdAABTJL2MyWB12+eIY7MDL2SqLmAkeKU9qxRvWuSyTjm3FUmpBEMuFfckAIqEaVGUDxb6w==
-  dependencies:
-    p-try "^2.0.0"
-
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-  version "4.1.0"
-  resolved "https://registry.yarnpkg.com/p-locate/-/p-locate-4.1.0.tgz#a3428bb7088b3a60292f66919278b7c297ad4f07"
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-  dependencies:
-    p-limit "^2.2.0"
-
-p-try@^2.0.0:
-  version "2.2.0"
-  resolved "https://registry.yarnpkg.com/p-try/-/p-try-2.2.0.tgz#cb2868540e313d61de58fafbe35ce9004d5540e6"
-  integrity sha512-R4nPAVTAU0B9D35/Gk3uJf/7XYbQcyohSKdvAxIRSNghFl4e71hVoGnBNQz9cWaXxO2I10KTC+3jMdvvoKw6dQ==
-
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-  version "4.0.0"
-  resolved "https://registry.yarnpkg.com/path-exists/-/path-exists-4.0.0.tgz#513bdbe2d3b95d7762e8c1137efa195c6c61b5b3"
-  integrity sha512-ak9Qy5Q7jYb2Wwcey5Fpvg2KoAc/ZIhLSLOSBmRmygPsGwkVVt0fZa0qrtMz+m6tJTAHfZQ8FnmB4MG4LWy7/w==
-
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-  version "2.1.1"
-  resolved "https://registry.yarnpkg.com/require-directory/-/require-directory-2.1.1.tgz#8c64ad5fd30dab1c976e2344ffe7f792a6a6df42"
-  integrity sha1-jGStX9MNqxyXbiNE/+f3kqam30I=
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-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/require-main-filename/-/require-main-filename-2.0.0.tgz#d0b329ecc7cc0f61649f62215be69af54aa8989b"
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-
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-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/set-blocking/-/set-blocking-2.0.0.tgz#045f9782d011ae9a6803ddd382b24392b3d890f7"
-  integrity sha1-BF+XgtARrppoA93TgrJDkrPYkPc=
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-  version "4.2.0"
-  resolved "https://registry.yarnpkg.com/string-width/-/string-width-4.2.0.tgz#952182c46cc7b2c313d1596e623992bd163b72b5"
-  integrity sha512-zUz5JD+tgqtuDjMhwIg5uFVV3dtqZ9yQJlZVfq4I01/K5Paj5UHj7VyrQOJvzawSVlKpObApbfD0Ed6yJc+1eg==
-  dependencies:
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-    is-fullwidth-code-point "^3.0.0"
-    strip-ansi "^6.0.0"
-
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-  version "6.0.0"
-  resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-6.0.0.tgz#0b1571dd7669ccd4f3e06e14ef1eed26225ae532"
-  integrity sha512-AuvKTrTfQNYNIctbR1K/YGTR1756GycPsg7b9bdV9Duqur4gv6aKqHXah67Z8ImS7WEz5QVcOtlfW2rZEugt6w==
-  dependencies:
-    ansi-regex "^5.0.0"
-
-which-module@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/which-module/-/which-module-2.0.0.tgz#d9ef07dce77b9902b8a3a8fa4b31c3e3f7e6e87a"
-  integrity sha1-2e8H3Od7mQK4o6j6SzHD4/fm6Ho=
-
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-  version "6.2.0"
-  resolved "https://registry.yarnpkg.com/wrap-ansi/-/wrap-ansi-6.2.0.tgz#e9393ba07102e6c91a3b221478f0257cd2856e53"
-  integrity sha512-r6lPcBGxZXlIcymEu7InxDMhdW0KDxpLgoFLcguasxCaJ/SOIZwINatK9KY/tf+ZrlywOKU0UDj3ATXUBfxJXA==
-  dependencies:
-    ansi-styles "^4.0.0"
-    string-width "^4.1.0"
-    strip-ansi "^6.0.0"
-
-y18n@^4.0.0:
-  version "4.0.0"
-  resolved "https://registry.yarnpkg.com/y18n/-/y18n-4.0.0.tgz#95ef94f85ecc81d007c264e190a120f0a3c8566b"
-  integrity sha512-r9S/ZyXu/Xu9q1tYlpsLIsa3EeLXXk0VwlxqTcFRfg9EhMW+17kbt9G0NrgCmhGb5vT2hyhJZLfDGx+7+5Uj/w==
-
-yargs-parser@^18.1.1:
-  version "18.1.3"
-  resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-18.1.3.tgz#be68c4975c6b2abf469236b0c870362fab09a7b0"
-  integrity sha512-o50j0JeToy/4K6OZcaQmW6lyXXKhq7csREXcDwk2omFPJEwUNOVtJKvmDr9EI1fAJZUyZcRF7kxGBWmRXudrCQ==
-  dependencies:
-    camelcase "^5.0.0"
-    decamelize "^1.2.0"
-
-yargs@15.3:
-  version "15.3.1"
-  resolved "https://registry.yarnpkg.com/yargs/-/yargs-15.3.1.tgz#9505b472763963e54afe60148ad27a330818e98b"
-  integrity sha512-92O1HWEjw27sBfgmXiixJWT5hRBp2eobqXicLtPBIDBhYB+1HpwZlXmbW2luivBJHBzki+7VyCLRtAkScbTBQA==
-  dependencies:
-    cliui "^6.0.0"
-    decamelize "^1.2.0"
-    find-up "^4.1.0"
-    get-caller-file "^2.0.1"
-    require-directory "^2.1.1"
-    require-main-filename "^2.0.0"
-    set-blocking "^2.0.0"
-    string-width "^4.2.0"
-    which-module "^2.0.0"
-    y18n "^4.0.0"
-    yargs-parser "^18.1.1"