Fix issue with uwsgi controlled processes not restarting due to incorrect signal.

README.md

@@ -1,4 +1,4 @@
-Ansible uwsgi-nginx-supervisor
+Ansible nginx-uwsgi-supervisor
 ==============================
 
 An Ansible role to setup and manage a UWSGI app via supervisor, and served up on a NGINX web server.  The goal of this
@@ -10,32 +10,29 @@ Requirements
 
 - aptitude or python-apt (required by apt tasks)
 - python > 2.5 (required by ini_file tasks)
-- Ansible >= 2.0
 
-This role is designed to work against a modern Ubuntu system.  (Tested on Ubuntu 14.04 and 16.04)  It should 
+This role is designed to work against a modern Ubuntu system.  (Tested on Ubuntu 13.10 and 14.04)  It should 
 theoretically work on older versions of Ubuntu or Debian based systems.
 
-This role relies on the [nginx-supervisor base role](https://bitbucket.org/dorianpula/ansible-nginx-supervisor).
-
 Example Playbook
 ----------------
 
 The simplest way to include the role in your playbook is to copy the below configuration.  Remember to modify the 
-uwsgi_app_name, uwsgi_app_nginx_hostname and uwsgi_app_executable parameters especially.
+app_name, app_nginx_hostname and app_uwsgi_executable parameters especially.
          
     - hosts: servers
       sudo: yes
       roles:
           - { role: nginx-uwsgi-supervisor,
-              uwsgi_app_name: app,
-              uwsgi_app_nginx_hostname: app.domain.net,
-              uwsgi_app_port: 8080,
-              uwsgi_app_executable: "app.build:make_wsgi_app()" }
+              app_name: app,
+              app_nginx_hostname: app.domain.net,
+              app_uwsgi_port: 8080,
+              app_uwsgi_executable: "app.build:make_wsgi_app()" }
               
 The role itself is very configurable.  For exaple, if you prefer the location of the web application to refer to the 
 domain name rather than the default root path,  then simply override the app_root_path variable with something like:
 
-    uwsgi_app_rooth_path: "{{ uwsgi_web_root_path }}/{{ uwsgi_app_nginx_hostname }}"
+    app_rooth_path: "{{ web_root_path }}/{{ app_nginx_hostname }}"
 
 A comprehensive example can be found in the [Ansible rookeries role] 
 (https://bitbucket.org/dorianpula/ansible-rookeries) that uses this role as a base to deploy a Flask-based webapp.
@@ -48,54 +45,54 @@ into sections and described below:
 
 ### App Settings
 
-- uwsgi_app_name:
+- app_name:
     - The name of WSGI app to manage via this role.
     - Used as a prefix through out the role.
-- uwsgi_app_root_path:
+- app_root_path:
     - The path to the root folder of the app.
-    - Default: uwsgi_web_root_path/uwsgi_app_name_webapp
+    - Default: web_root_path/app_name_webapp
 
 ### NGINX
 
-- uwsgi_app_nginx_hostname:
+- app_nginx_hostname:
     - The DNS hostname that the application serves.
     - Default: localhost
-- uwsgi_app_static_path: 
+- app_nginx_app_static: 
     - The path to the static elements of the site (templates, CSS, images, etc.)
-    - Default: uwsgi_app_root_path/uwsgi_app_name/static/
+    - Default: app_root_path/app_name/static/
 
 ### UWSGI
 
-- uwsgi_app_port: 
+- app_uwsgi_port: 
     - The port number that the WSGI runs on and accepts requests forwarded from NGINX.
     - Default: 8001
-- uwsgi_app_executable:
+- app_uwsgi_executable:
     - The method executed by UWSGI to create a WSGI running app.  Usually a WSGI factory method or module in the app.
     - Default: app:make_wsgi_app()
-- uwsgi_app_envs:
+- app_uwsgi_envs:
     - (Optional) A dictionary of environment variables to pass into an app.
     - Default: empty dictionary
     
 ### Virtual Environments
 
-On occasion it is necessary to change the setup of the virtual environments on a system.
+**NEW** - On occassion it is necessary to change the setup of the virtual environments on a system.
 
-- uwsgi_virtualenv_root_path: 
+- virtualenv_root_path: 
     - Path to where the virtual environments are installed
-    - Default: uwsgi_web_root_path/virtualenvs
-- uwsgi_app_venv:
+    - Default: web_root_path/virtualenvs
+- app_venv:
     - Path to the application's virtualenv.
-    - Default: uwsgi_virtualenv_root_path/uwsgi_app_name
+    - Default: virtualenv_root_path/app_name
 
 ### General Web
 
 These variables are not as crucial to configure.  They do give good defaults for configuring the system in a consistent,
 POSIX/LSB-friendly and user-friendly manner.  See the section on Default File Structure for more details.
 
-- uwsgi_web_root_path:
+- web_root_path:
     - The root of the entire web app structure include configuration and logging.
     - Default: /srv/www
-- uwsgi_web_server_group:
+- web_server_group:
     - The user group responsible for starting, stopping and managing the web and app servers on the target machine. 
     - Default: www-data
 
@@ -113,7 +110,7 @@ By default the role will organize files in the following directory structure:
     │   ├── nginx -> /var/log/nginx
     │   ├── supervisor -> /var/log/supervisor
     │   └── uwsgi
-    ├── uwsgi_app_webapp
+    ├── app_webapp
     │   ├── requirements.txt
     │   └── app
     └── virtualenvs
@@ -126,19 +123,25 @@ Internal Variables
 The following variables are part of the internals of the role.  However if you really want to, you can tweak them to 
 work with your setup:
 
-- uwsgi_virtualenv_root_path: 
+- web_user: 
+    - The non-root user who is allowed to control web + app servers on the target machine.
+    - Default: current user
+- virtualenv_root_path: 
     - The common root directory of Python virtual environments associated with running the 
     UWSGI app + server.  
     - Default: /srv/www/virtualenvs/
 - uwsgi_venv:
     - The virtual environment where UWSGI is installed.
-    - Default: uwsgi_virtualenv_root/uwsgi
-- uwsgi_app_venv: 
+    - Default: virtualenv_root/uwsgi
+- app_venv: 
     - The virtual environment where the dependencies of the WSGI app is installed.  
-    - Default: uwsgi_virtualenv_root/uwsgi_app_name
-- uwsgi_app_nginx_conf: 
+    - Default: virtualenv_root/app_name
+- nginx_app_conf: 
     - The filename of the NGINX configuration for the app.
-    - Default: uwsgi_app_name_nginx.conf
+    - Default: app_name_uwsgi_nginx.conf
+- supervisor_app_config:
+    - The filename of the supervisor configuration for the app.  
+    - Default: app_name_supervisor.conf
 - uwsgi_config_path: 
     - The path to the UWSGI configurations.
     - Default: /srv/www/config/uwsgi
@@ -169,8 +172,7 @@ This role is a spin-off of the technology developed for the [Rookeries project]
 Repositories
 ------------
 
-- Main: https://bitbucket.org/dorianpula/ansible-uwsgi-nginx-supervisor
+- Main: https://bitbucket.org/dorianpula/ansible-nginx-uwsgi-supervisor
     - All development and issues are worked on this repo.
 - Clone: https://github.com/dorianpula/ansible-nginx-uwsgi-supervisor
     - A clone to work with Ansible Galaxy and Github
-- nginx-supervisor base role: https://bitbucket.org/dorianpula/ansible-nginx-supervisor

defaults/main.yml

@@ -2,21 +2,21 @@
 # defaults file for ansible-nginx-uwsgi-supervisor
 
 # Web root paths + app name + home
-uwsgi_web_root_path: /srv/www
-uwsgi_web_server_group: www-data
+web_root_path: /srv/www
+web_server_group: www-data
 
-uwsgi_app_name: app
-uwsgi_app_root_path: "{{ uwsgi_web_root_path }}/{{ uwsgi_app_name }}_webapp"
+app_name: app
+app_root_path: "{{ web_root_path }}/{{ app_name }}_webapp"
 
 # NGINX
-uwsgi_app_hostname: localhost
-uwsgi_app_static_path: "{{ uwsgi_app_root_path }}/{{ uwsgi_app_name }}/static/"
+app_nginx_hostname: localhost
+app_nginx_static_path: "{{ app_root_path }}/{{ app_name }}/static/"
 
 # UWSGI
-uwsgi_app_port: 8000
-uwsgi_app_executable: "app:make_wsgi_app()"
-uwsgi_app_envs: {}
+app_uwsgi_port: 8000
+app_uwsgi_executable: "app:make_wsgi_app()"
+app_uwsgi_envs: {}
 
 # Virtualenvs
-uwsgi_virtualenv_root_path: "{{ uwsgi_web_root_path }}/virtualenvs"
-uwsgi_app_venv: "{{ uwsgi_virtualenv_root_path }}/{{ uwsgi_app_name }}"
+virtualenv_root_path: "{{ web_root_path }}/virtualenvs"
+app_venv: "{{ virtualenv_root_path }}/{{ app_name }}"

handlers/main.yml

@@ -3,3 +3,19 @@
 - name: restart uwsgi app
   supervisorctl: name={{ uwsgi_app_service_name }} state=restarted config=/etc/supervisor/supervisord.conf
   sudo: yes
+
+- name: start supervisord
+  service: name=supervisor state=started
+  sudo: yes
+
+- name: start supervisord
+  service: name=supervisor state=started
+  sudo: yes
+
+- name: restart supervisord
+  service: name=supervisor state=restarted
+  sudo: yes
+
+- name: restart nginx
+  service: name=nginx state=restarted
+  sudo: yes

meta/main.yml

@@ -4,23 +4,13 @@ galaxy_info:
   description: An elegant NGINX, UWSGI and supervisor Ansible role
   company: Amber Penguin Software
   license: BSD
-  min_ansible_version: 2.0
+  min_ansible_version: 1.6
   platforms:
   - name: Ubuntu
     versions:
+    - saucy
     - trusty
-    - xenial
   categories:
   - development
   - web
-dependencies:
-#  - role:  "git+https://bitbucket.org/dorianpula/ansible-nginx-supervisor,,nginx-supervisor"
-  - role:  "nginx-supervisor"
-    nsbase_app_name: "{{ uwsgi_app_name }}"
-    nsbase_app_root_path: "{{ uwsgi_app_root_path }}"
-    nsbase_app_hostname: "{{ uwsgi_app_hostname }}"
-    nsbase_app_service_name: "{{ uwsgi_app_service_name }}"
-    nsbase_app_service_command: "{{ uwsgi_app_supervisor_command }}"
-    nsbase_app_service_stop_signal: QUIT
-    nsbase_app_nginx_config: "{{ uwsgi_app_nginx_config }}"
-    nsbase_app_static_path: "{{ uwsgi_app_static_path }}"
+dependencies: []

tasks/main.yml

@@ -1,4 +1,7 @@
 ---
 # tasks file for ansible-nginx-uwsgi-supervisor
 - include: python.yaml
+- include: nginx.yaml
+- include: supervisor.yaml
+- include: web_data_folders.yaml
 - include: uwsgi.yaml

tasks/nginx.yaml

@@ -0,0 +1,37 @@
+---
+- name: install nginx webserver
+  apt: pkg=nginx-full state=present
+  sudo: yes
+
+- name: configure nginx
+  template: src=nginx/app_uwsgi_nginx.conf dest=/etc/nginx/sites-available/{{ nginx_app_config }}
+  sudo: yes
+
+- name: link to enable nginx configuration
+  file: state=link
+        src=/etc/nginx/sites-available/{{ nginx_app_config }}
+        path=/etc/nginx/sites-enabled/{{ nginx_app_config }}
+  sudo: yes
+
+- name: disable default configuration
+  file: state=absent path=/etc/nginx/sites-enabled/default
+  sudo: yes
+  notify: restart nginx
+
+- name: set nginx directories permissions
+  file: path={{ item }} state=directory
+        group={{ web_server_group }} mode=0755
+  with_items:
+      - /var/log/nginx
+      - /etc/nginx
+      - /etc/nginx/sites-available
+      - /etc/nginx/sites-enabled
+  sudo: yes
+
+- name: set nginx logs permissions
+  file: path=/var/log/nginx/{{ item }} state=file
+        owner={{ web_server_group }} group={{ web_server_group }} mode=0644
+  with_items:
+      - access.log
+      - error.log
+  sudo: yes

tasks/supervisor.yaml

@@ -0,0 +1,25 @@
+---
+- name: install supervisord
+  apt: name=supervisor state=present
+  sudo: yes
+
+- name: set permissions on supervisor config and log directories
+  file: path={{ item }} group={{ web_server_group }} state=directory mode=0755
+  with_items:
+     - /etc/supervisor
+     - /etc/supervisor/conf.d
+     - /var/log/supervisor
+  sudo: yes
+
+- name: modify supervisor configuration
+  ini_file: dest=/etc/supervisor/supervisord.conf section=unix_http_server
+            option={{ item.key }} value={{ item.value }}
+  with_dict:
+      chmod: "0770"
+      chown: root:{{ web_server_group }}
+  sudo: yes
+
+- name: upload supervisor configuration to web server home
+  template: src=supervisor/app_supervisor.conf dest=/etc/supervisor/conf.d/{{ supervisor_app_config }}
+  sudo: yes
+  notify: start supervisord

tasks/uwsgi.yaml

@@ -4,17 +4,5 @@
   sudo: yes
 
 - name: configure app on uwsgi server
-  template: src=app_uwsgi.ini dest={{ uwsgi_config_path }}/{{ uwsgi_app_ini }}
+  template: src=uwsgi/app_uwsgi.ini dest={{ uwsgi_config_path }}/{{ uwsgi_app_ini }}
   sudo: yes
-  notify: restart uwsgi app
-
-- name: configure nginx app with uwsgi specific block.
-  blockinfile:
-    dest: /etc/nginx/sites-available/{{ uwsgi_app_nginx_config }}
-    insertafter: "# Include your setup to connect to the webapp setup here."
-    marker: "# -- {mark} UWSGI App config for {{ uwsgi_app_name }} --"
-    block: |
-        include     uwsgi_params;
-        uwsgi_pass  127.0.0.1:{{ uwsgi_app_port }};
-  sudo: yes
-  notify: restart nginx

tasks/web_data_folders.yaml

@@ -0,0 +1,31 @@
+---
+- name: setup webapp deployment folder with the correct permissions
+  file: path={{ web_root_path }} state=directory
+        owner={{ web_server_group }} group={{ web_server_group }} mode=0774
+  sudo: yes
+
+- name: setup webapp deployment configuration + log folders with the correct permissions
+  file: path={{ web_root_path }}/{{ item }} state=directory
+        owner={{ web_server_group }} group={{ web_server_group }} mode=0774
+  with_items:
+      - config
+      - config/uwsgi
+      - logs
+      - virtualenvs
+  sudo: yes
+
+- name: link remote folders with webapp home folder
+  file: state=link
+        path={{ web_root_path }}/{{ item.value }}
+        src={{ item.key }}
+        owner={{ web_server_group }} group={{ web_server_group }} mode=0774
+  with_dict:
+      /etc/nginx: config/nginx
+      /etc/supervisor: config/supervisor
+      /var/log/nginx: logs/nginx
+      /var/log/supervisor: logs/supervisor
+  sudo: yes
+
+- name: add user to webserver group
+  user: name={{ web_user }} append=yes groups={{ web_server_group }}
+  sudo: yes

templates/app_uwsgi.ini

@@ -1,12 +0,0 @@
-[uwsgi]
-socket = :{{ uwsgi_app_port }}
-master = true
-processes = 8
-
-chdir = {{ uwsgi_app_root_path }}
-virtualenv = {{ uwsgi_app_venv }}
-module = {{ uwsgi_app_executable }}
-
-{% for env_var, env_value in uwsgi_app_envs.items() %}
-env = {{ env_var | upper }}={{ env_value }}
-{% endfor %}

templates/nginx/app_uwsgi_nginx.conf

@@ -0,0 +1,18 @@
+server {
+
+    server_name {{ app_nginx_hostname }};
+    access_log  {{ web_root_path }}/logs/nginx/{{ app_name }}-access.log;
+    error_log   {{ web_root_path }}/logs/nginx/{{ app_name }}-error.log info;
+
+    location /static/  {
+        alias   {{ app_nginx_static_path }};
+    }
+
+    location / {
+        try_files   $uri @yourapplication;
+    }
+    location @yourapplication {
+        include     uwsgi_params;
+        uwsgi_pass  127.0.0.1:{{ app_uwsgi_port }};
+    }
+}

templates/supervisor/app_supervisor.conf

@@ -0,0 +1,9 @@
+; UWSGI for {{ app_name }}
+[program:{{ uwsgi_app_service_name }}]
+user={{ web_server_group }}
+command={{ uwsgi_venv }}/bin/uwsgi --ini {{ uwsgi_config_path }}/{{ uwsgi_app_ini }}
+stopsignal=QUIT
+stdout_logfile = {{ web_root_path }}/logs/supervisor/{{ app_name }}-application.log
+stdout_logfile_backups = 5
+stderr_logfile = {{ web_root_path }}/logs/supervisor/{{ app_name }}-error.log
+stderr_logfile_backups = 5

templates/uwsgi/app_uwsgi.ini

@@ -0,0 +1,12 @@
+[uwsgi]
+socket = :{{ app_uwsgi_port }}
+master = true
+processes = 8
+
+chdir = {{ app_root_path }}
+virtualenv = {{ app_venv }}
+module = {{ app_uwsgi_executable }}
+
+{% for env_var, env_value in app_uwsgi_envs.items() %}
+env = {{ env_var | upper }}={{ env_value }}
+{% endfor %}

vars/main.yml

@@ -1,14 +1,17 @@
 ---
 # vars file for ansible-nginx-uwsgi-supervisor
 
+# User
+web_user: "{{ ansible_env.SUDO_USER }}"
+
 # NGINX
-uwsgi_app_nginx_config: "{{ uwsgi_app_name }}_uwsgi_nginx.conf"
+nginx_app_config: "{{ app_name }}_uwsgi_nginx.conf"
+
+# Supervisor
+supervisor_app_config: "{{ app_name }}_supervisor.conf"
 
 # UWSGI
-uwsgi_venv: "{{ uwsgi_virtualenv_root_path }}/uwsgi"
-uwsgi_config_path: "{{ uwsgi_web_root_path }}/config/uwsgi"
-uwsgi_app_ini: "{{ uwsgi_app_name }}_uwsgi.ini"
-uwsgi_app_service_name: "{{ uwsgi_app_name }}_uwsgi"
-
-# TODO: Document extracted variables
-uwsgi_app_supervisor_command: "{{ uwsgi_venv }}/bin/uwsgi --ini {{ uwsgi_config_path }}/{{ uwsgi_app_ini }}"
+uwsgi_venv: "{{ virtualenv_root_path }}/uwsgi"
+uwsgi_config_path: "{{ web_root_path }}/config/uwsgi"
+uwsgi_app_ini: "{{ app_name }}_uwsgi.ini"
+uwsgi_app_service_name: "{{ app_name }}_uwsgi"