Basic repo files added

.dockerignore

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+/out
+/node_modules
+*.log

.editorconfig

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+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+insert_final_newline = true
+indent_style = space
+indent_size = 4
+trim_trailing_whitespace = true
+
+[*.{yml, yaml, sh, conf}]
+indent_size = 2
+
+[Makefile]
+indent_style = tab

.github/workflows/release.yml

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+name: release
+
+on:
+  release: # Docs: <https://git.io/JeBz1#release-event-release>
+    types: [published]
+
+jobs:
+  demo:
+    name: Update demonstration, hosted on github pages
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v2
+
+      - name: Setup NodeJS
+        uses: actions/setup-node@v1 # Action page: <https://github.com/actions/setup-node>
+        with:
+          node-version: 12
+
+      - name: Generate version value
+        run: echo "::set-env name=PACKAGE_VERSION::${GITHUB_REF##*/v}"
+
+      - uses: actions/cache@v2
+        with:
+          path: '**/node_modules'
+          key: ${{ runner.os }}-yarn-${{ hashFiles('**/yarn.lock') }}
+
+      - name: Install dependencies
+        run: ./bin/generator.js -c ./configuration.json -o ./out
+
+      - name: Upload artifact
+        uses: actions/upload-artifact@v2
+        with:
+          name: content
+          path: out/
+
+      - name: Switch to github pages branch
+        uses: actions/checkout@v2
+        with:
+          ref: gh-pages
+
+      - name: Download artifact
+        uses: actions/download-artifact@v2
+        with:
+          name: content
+
+      - name: Setup git
+        run: |
+          git config --global user.name "$GITHUB_ACTOR"
+          git config --global user.email '[email protected]'
+          git remote add github "https://$GITHUB_ACTOR:[email protected]/$GITHUB_REPOSITORY.git"
+
+      - name: Stage changes
+        run: git add .
+
+      - name: Commit changes
+        run: git commit -m "Deploying ${GITHUB_SHA} to Github Pages"
+
+      - name: Push changes
+        run: git push github --force
+
+  docker-image:
+    name: Build docker image
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 1
+
+      - name: Generate version value
+        run: echo "::set-env name=APP_VERSION::${GITHUB_REF##*/}@`echo ${GITHUB_SHA} | cut -c1-8`"
+
+      - name: Generate image tag value
+        run: echo "::set-env name=IMAGE_TAG::${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 --build-arg "APP_VERSION=${APP_VERSION}" --tag "tarampampam/tinifier:${IMAGE_TAG}" --tag "tarampampam/tinifier:latest" -f ./Dockerfile .
+
+      - name: Push version image
+        run: docker push "tarampampam/tinifier:${IMAGE_TAG}"
+
+      - name: Push latest image
+        run: docker push "tarampampam/tinifier:latest"

.github/workflows/tests.yml

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+name: tests
+
+on:
+  push:
+    branches:
+      - master
+    tags-ignore:
+      - '**'
+  pull_request:
+
+jobs: # Docs: <https://git.io/JvxXE>
+  generate:
+    name: Try to run generator
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v2
+
+      - name: Setup NodeJS
+        uses: actions/setup-node@v1 # Action page: <https://github.com/actions/setup-node>
+        with:
+          node-version: 12
+
+      - uses: actions/cache@v2
+        with:
+          path: '**/node_modules'
+          key: ${{ runner.os }}-yarn-${{ hashFiles('**/yarn.lock') }}
+
+      - name: Install dependencies
+        run: yarn install
+
+      - name: Run generator
+        run: ./bin/generator.js -c ./configuration.json -o ./out
+
+      - name: Test file creation
+        run: test -f ./out/ghost/404.html
+
+  docker-build:
+    name: Try to run generator
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v2
+
+      - name: Build docker image
+        run: docker build -f ./Dockerfile .

.gitignore

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+## IDEs
+/.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*

CHANGELOG.md

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+# Changelog
+
+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].
+
+## v1.0.0
+
+### Changed
+
+- WIP
+
+[keepachangelog]:https://keepachangelog.com/en/1.0.0/
+[semver]:https://semver.org/spec/v2.0.0.html

Dockerfile

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+# Image page: <https://hub.docker.com/_/node>
+FROM node:12.16.2-alpine as builder
+
+WORKDIR /src
+
+COPY . .
+
+RUN set -x \
+    && yarn install --frozen-lockfile \
+    && ./bin/generator.js -c ./configuration.json -o ./out
+
+# Image page: <https://hub.docker.com/_/nginx>
+FROM nginx:1.18-alpine
+
+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
+
+ENTRYPOINT ["/docker-entrypoint.sh"]
+
+CMD ["nginx", "-g", "daemon off;"]

LICENSE

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+MIT License
+
+Copyright (c) <https://github.com/tarampampam>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

Makefile

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+#!/usr/bin/make
+# Makefile readme (ru): <http://linux.yaroslavl.ru/docs/prog/gnu_make_3-79_russian_manual.html>
+# Makefile readme (en): <https://www.gnu.org/software/make/manual/html_node/index.html#SEC_Contents>
+
+SHELL = /bin/sh
+
+DOCKER_BIN = $(shell command -v docker 2> /dev/null)
+APP_NAME = $(notdir $(CURDIR))
+
+.DEFAULT_GOAL : help
+
+help: ## Show this help
+	@printf "\033[33m%s:\033[0m\n" 'Available commands'
+	@awk 'BEGIN {FS = ":.*?## "} /^[a-zA-Z_-]+:.*?## / {printf "  \033[32m%-15s\033[0m %s\n", $$1, $$2}' $(MAKEFILE_LIST)
+
+image: ## Build docker image
+	$(DOCKER_BIN) build -f ./Dockerfile -t $(APP_NAME):local .
+	@printf "\n   \e[30;42m %s \033[0m\n\n" 'Now you can use image like `docker run --rm -p 8080:8080 $(APP_NAME):local ...`'
+
+shell: ## Start shell into container with node
+	$(DOCKER_BIN) run --rm -ti -v "$(shell pwd):/src:rw" -w "/src" --user "$(shell id -u):$(shell id -g)" node:12.16.2-alpine sh

README.md

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+<p align="center">
+  <img src="https://hsto.org/webt/rg/ys/c3/rgysc33oc7jiufdzmwrkohpmef8.png" width="94" alt="" />
+</p>
+
+# Static error pages in a Docker container
+
+[![Build Status][badge_build_status]][link_build_status]
+[![License][badge_license]][link_license]
+
+This repository contains a very simple generator for server error pages _(like `404: Not found`)_ and ready docker image with web server for error pages serving.
+
+Generator ([`bin/generator.js`](./bin/generator.js)) allows you:
+
+- Use different templates (section `templates` in configuration file)
+- Generate pages with arbitrary content according to a specific template
+
+Can be used for [Traefik error pages customization](https://docs.traefik.io/middlewares/errorpages/).
+
+### Usage
+
+Just execute (installed `nodejs` is required):
+
+```bash
+$ bin/generator.js -c ./configuration.json -o ./out
+```
+
+And watch into `./out` directory:
+
+```text
+./out
+└── ghost
+    ├── 400.html
+    ├── 401.html
+    ├── 403.html
+    ├── 404.html
+    ├── ...
+    └── 505.html
+```
+
+Default configuration can be found in [`configuration.json`](./configuration.json) file.
+
+### Docker
+
+Start image (`nginx` inside):
+
+```bash
+$ docker run --rm -p "8080:8080" tarampampam/error-pages:1.0.0
+```
+
+And open in your browser `http://127.0.0.1:8080/ghost/400.html`. Additionally, you can set "default" pages theme by passing `TEMPLATE_NAME` environment variable (eg.: `-e "TEMPLATE_NAME=ghost"`) - in this case all error pages will be accessible in root directory (eg.: `http://127.0.0.1:8080/400.html`).
+
+Also you can use generated error pages in your own docker images:
+
+```dockerfile
+FROM nginx:1.18-alpine
+
+COPY --from=tarampampam/error-pages:1.0.0 /opt/html/ghost /usr/share/nginx/html/error-pages
+```
+
+> [`error_page` for `nginx` configuration](http://nginx.org/en/docs/http/ngx_http_core_module.html#error_page)
+
+## Changes log
+
+[![Release date][badge_release_date]][link_releases]
+[![Commits since latest release][badge_commits_since_release]][link_commits]
+
+Changes log can be [found here][link_changes_log].
+
+## Support
+
+[![Issues][badge_issues]][link_issues]
+[![Issues][badge_pulls]][link_pulls]
+
+If you will find any package errors, please, [make an issue][link_create_issue] in current repository.
+
+## License
+
+This is open-sourced software licensed under the [MIT License][link_license].
+
+[badge_build_status]:https://img.shields.io/github/workflow/status/tarampampam/error-pages-docker/tests/master
+[badge_release_date]:https://img.shields.io/github/release-date/tarampampam/error-pages-docker.svg?style=flat-square&maxAge=180
+[badge_commits_since_release]:https://img.shields.io/github/commits-since/tarampampam/error-pages-docker/latest.svg?style=flat-square&maxAge=180
+[badge_issues]:https://img.shields.io/github/issues/tarampampam/error-pages-docker.svg?style=flat-square&maxAge=180
+[badge_pulls]:https://img.shields.io/github/issues-pr/tarampampam/error-pages-docker.svg?style=flat-square&maxAge=180
+[badge_license]:https://img.shields.io/github/license/tarampampam/error-pages-docker.svg?longCache=true
+[link_releases]:https://github.com/tarampampam/error-pages-docker/releases
+[link_commits]:https://github.com/tarampampam/error-pages-docker/commits
+[link_changes_log]:https://github.com/tarampampam/error-pages-docker/blob/master/CHANGELOG.md
+[link_issues]:https://github.com/tarampampam/error-pages-docker/issues
+[link_pulls]:https://github.com/tarampampam/error-pages-docker/pulls
+[link_build_status]:https://travis-ci.org/tarampampam/error-pages-docker
+[link_create_issue]:https://github.com/tarampampam/error-pages-docker/issues/new
+[link_license]:https://github.com/tarampampam/error-pages-docker/blob/master/LICENSE