Basic Flask app with RPM creation using PKG Deploy

Author: pyepye

.gitignore

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+# PKG Deploy
+.vagrant/
+
+### OSX ###
+.DS_Store
+.AppleDouble
+.LSOverride
+
+# Icon must end with two \r
+Icon
+
+# Thumbnails
+._*
+
+# Files that might appear on external disk
+.Spotlight-V100
+.Trashes
+
+# Directories potentially created on remote AFP share
+.AppleDB
+.AppleDesktop
+Network Trash Folder
+Temporary Items
+.apdisk
+
+# Editors
+.vscode/
+
+### Python ###
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+venv/
+env/
+develop-eggs/
+dist/
+downloads/
+eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+*.egg-info/
+.installed.cfg
+*.egg
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+#*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.coverage
+.cache
+nosetests.xml
+coverage.xml
+.testmondata
+
+# Translations
+*.mo
+*.pot
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+target/
+
+
+### Django ###
+*.log
+*.pot
+*.pyc
+__pycache__/
+local_settings.py
+
+# Local dev
+.env
+.localenv
+*.sqlite3

.pkgdeploy/config_centos7.yml

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+name: pkgdeploy-flaskapp
+format: rpm
+distribution: centos7
+architecture: 64-bit
+description: A simple flask project to show how PKG Deploy works
+url: https://www.pkgdeploy.com
+license: GPLv3
+maintainer: PKG Deploy Devs <devs@pkgdeploy.com>
+
+build:
+  directory: /opt/pkgdeploy/flaskapp/
+  requires:
+    - python36-pip
+  commands: |
+    python3.6 -m venv ./venv/
+    ./venv/bin/pip install -r requirements.txt
+
+install:
+  requires:
+    - python36
+    - nginx
+  user: pkgdeploy
+  group: pkgdeploy
+  copy:
+    - source: ./
+      destination: /opt/pkgdeploy/flaskapp/
+      user: pkgdeploy
+      group: pkgdeploy
+      permissions: 755
+    - source: nginx.conf
+      destination: /etc/nginx/conf.d/flaskapp.conf
+    - source: flaskapp.service
+      destination: /etc/systemd/system/flaskapp.service
+
+after_install: |
+  # Configure Nginx
+  rm -f /etc/nginx/conf.d/default.conf
+  sed -i '/listen       80 default_server/d' /etc/nginx/nginx.conf
+  systemctl enable --now nginx
+  nginx -s reload
+  # Start app
+  systemctl enable --now flaskapp
+
+after_upgrade:
+  - file: .pkgdeploy/upgrade_commands.sh

.pkgdeploy/config_ubuntu.yml

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+name: pkgdeploy-flaskapp
+format: deb
+distribution: ubuntu18
+architecture: 64-bit
+description: A simple flask project to show how PKG Deploy works
+url: https://www.pkgdeploy.com
+license: GPLv3
+maintainer: PKG Deploy Devs <devs@pkgdeploy.com>
+
+build:
+  directory: /opt/pkgdeploy/flaskapp/
+  requires:
+    - python3-pip
+    - python3-venv
+  commands: |
+    python3 -m venv ./venv/
+    ./venv/bin/pip install -r requirements.txt
+
+install:
+  requires:
+    - python3
+    - nginx
+  user: pkgdeploy
+  group: pkgdeploy
+  copy:
+    - source: ./
+      destination: /opt/pkgdeploy/flaskapp/
+      user: pkgdeploy
+      group: pkgdeploy
+      permissions: 755
+    - source: nginx.conf
+      destination: /etc/nginx/conf.d/flaskapp.conf
+    - source: flaskapp.service
+      destination: /etc/systemd/system/flaskapp.service
+
+after_install: |
+  unlink /etc/nginx/sites-enabled/default
+  systemctl enable --now nginx
+  nginx -s reload
+  systemctl enable --now flaskapp
+
+after_upgrade:
+  - file: .pkgdeploy/upgrade_commands.sh

.pkgdeploy/upgrade_commands.sh

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+nginx -s reload
+systemctl daemon-reload
+systemctl restart flaskapp

README.md

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+# Flask example for PKG Deploy
+
+
+RPM builds with:
+* Python3.6 / pip
+* Flask
+* Gunicorn
+* Nginx
+* Systemd
+
+
+_Note: This is just an example. The settings, requirements, layout etc are
+not done using best practices and are not production ready._
+
+
+## Local setup
+```
+python3.6 -m venv ./venv
+source ./venv/bin/activate
+pip install -r requirements.txt
+
+FLASK_APP=app.py flask run --host 0.0.0.0:5000
+```

flaskapp.service

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+[Unit]
+Description=Basic flask app to show off PKG Deploy
+After=network.target
+
+[Service]
+User=pkgdeploy
+Group=pkgdeploy
+WorkingDirectory=/opt/pkgdeploy/flaskapp
+Environment="PATH=/opt/pkgdeploy/flaskapp/venv/bin"
+ExecStart=/opt/pkgdeploy/flaskapp/venv/bin/gunicorn --bind unix:flaskapp.sock --workers 4 flaskapp.wsgi:app
+Restart=always
+
+[Install]
+WantedBy=multi-user.target

flaskapp/__init__.py

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+from flask import Flask, render_template
+
+app = Flask(__name__)
+
+
+@app.route('/')
+def index():
+    return render_template('index.html')
+
+
+@app.route('/test/')
+def test():
+    return 'Test'
+
+
+@app.route('/test/<some_var>')
+def test_var(some_var):
+    return f'Test {some_var}'
+
+
+@app.route('/healthcheck')
+def healthcheck():
+    return 'OK'
+
+
+if __name__ == '__main__':
+    app.run(host='0.0.0.0')

flaskapp/app.py

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+body {
+    margin: 50px;
+    font: 11px sans-serif;
+    display: flex;
+    justify-content: center;
+}
+
+#wrapper {
+    display: flex;
+    flex-direction: column;
+}
+
+header {
+    text-align: center;
+}
+
+#logo {
+    width: 150px;
+}
+
+main {
+    display: flex;
+    justify-content: center;
+}