Πανεπιστήμιο Δυτικής Αττικής 
Τμήμα Μηχανικών Πληροφορικής και Υπολογιστών



# Υπολογιστική Νέφους και Υπηρεσίες

## Θέμα: Wordpress
#### Στόχος: Δημιουργία docker swarm
#### Υπ. Καθηγητής: Α. Αναγνωστόπουλος

|   Ομάδα   |  AM    |
| ---- | ---- |
|Οζμπούρσαλη Φωτεινή - manager     |   131039   |
|Κερασιώτης Αθανάσιος - worker   |   131113   |
|Αγαθαγγελίδη Αικατερίνη - worker |  151108|
|Μητρόπουλος Ιωάννης - worker |  151015   |



------

###  1. Χρήση παραδείγματος github

```
wget -r -np https://github.com/gabidavila/docker-wordpress-ssl-nginx-mysql
```



### 2. Έλεγχος swarm

*Εκτέλεση*

```
docker node ls
```

*Αποτελέσματα*

```
ID                            HOSTNAME            STATUS              AVAILABILITY        MANAGER STATUS      ENGINE VERSION
ob89puh8bz9n5cdxrsppmug2z     snf-12364           Ready               Active                                  19.03.8
9gx538gc60i9vzda7j5ct31al *   snf-12366           Ready               Active              Leader              19.03.8
6cgh0yeqa65r53n7fabw9079f     snf-12565           Ready               Active                                  18.09.7
tjxyrlr4zlj6xgxcsz6gbf6s7     snf-12591           Ready               Active                                  18.09.7
```



### 3. Δημιουργία και εκτέλεση Dockerfile

*Δημιουργία:*

```
# ===============================================================================
# Dockerfile
#   "Wordpress + Nginx + Cached + NoDB" docker image - production ready
#
# What's it included:
#
# - php-fpm
# - Wordpress - build with the **latest** version
# - Nginx - as reverse proxy, HTTP / HTTPS enabled.
# - Cache - fastcgi-cache, fastcgi_cache_purge, Opcache
# - No DB included.
#
# Optional
#
# - Deploy `letsencrypt` SSL.
# - Deploy normal SSL.
#
# @link https://letsencrypt.org/ | letsencrypt
#
# It is based on Ubuntu 14.04 LTS
# ===============================================================================

# Set the base image to Ubuntu
FROM ubuntu:14.04

# File Author / Maintainer
MAINTAINER Lei SHI <foxshee@gmail.com>

# Default HTTP and HTTPS and MySQL ports
EXPOSE 80 443 3306


# ===============================================================================
# Env. Setup
#

# Keep upstart from complaining
RUN dpkg-divert --local --rename --add /sbin/initctl && \
	ln -sf /bin/true /sbin/initctl

# Let the container know that there is no tty
ENV DEBIAN_FRONTEND noninteractive

# Update the repository sources list and finish upgrade
RUN apt-get update && apt-get -y upgrade

# ----------------------------------------------------------
# Dependencies
# ----------------------------------------------------------

# Basic Dependencies
#
# The basic dependecies includes:
#
# - PHP & fpm
# - MySQL client
# - curl
# - Git
# - pwgen - Open-Source Password Generator
# - python-setuptools - for `easy_install`
#
RUN apt-get install -y mysql-client-5.6 \
            mysql-server-5.6 \
						php5-fpm \
						php5-mysql \
						pwgen \
						python-setuptools \
						curl \
						git \
						unzip


# **Wordpress** Dependencies
RUN apt-get install -y php5-curl \
						php5-gd \
						php5-intl \
						php-pear \
						php5-imagick \
						php5-imap \
						php5-mcrypt \
						php5-memcache \
						php5-ming \
						php5-ps \
						php5-pspell \
						php5-recode \
						php5-sqlite \
						php5-tidy \
						php5-xmlrpc \
						php5-xsl

### ---- FIX -----
# Fix 'add-apt-repository: not found' in Ubuntu 14.04 LTS
RUN apt-get -y install software-properties-common \
						python-software-properties


# ----------------------------------------------------------
# Nginx
#
#   Nginx compiled with `fastcgi_cache` and `fastcgi_cache_purge`
#
# @link https://easyengine.io/wordpress-nginx/tutorials/single-site/fastcgi-cache-with-purging/
# ----------------------------------------------------------

RUN add-apt-repository ppa:rtcamp/nginx && \
	apt-get update && \
	apt-get remove nginx* && \
	apt-get install -y nginx-custom

############################################################
# Configurations
#

# ----------------------------------------------------------
# MySQL Config
# ----------------------------------------------------------

# RUN sed -i -e"s/^bind-address\s*=\s*127.0.0.1/bind-address = 0.0.0.0/" /etc/mysql/my.cnf

COPY config/my.cnf /etc/mysql/my.cnf

# ----------------------------------------------------------
# Nginx Config
# ----------------------------------------------------------

# Create uer for Nginx running
RUN adduser --system --no-create-home --shell /bin/false --group --disabled-login www-front

# Copy config files to `/etc/nginx/` folder
COPY  config/nginx.conf /etc/nginx/nginx.conf

COPY  config/nginx-site-http.conf /etc/nginx/nginx-site-http.conf
COPY  config/nginx-site-https.conf /etc/nginx/nginx-site-https.conf
# Default **site** config - HTTP
# Later if need to enforce SSL, use `nginx-site-http.conf` instead.
COPY  config/nginx-site-http.conf /etc/nginx/sites-available/default

COPY  config/nginx-ssl.conf /etc/nginx/ssl-template.conf
COPY  config/nginx-restrictions.conf /etc/nginx/restrictions.conf


# ----------------------------------------------------------
# PHP-fpm Config
# ----------------------------------------------------------

RUN sed -i -e "s/;cgi.fix_pathinfo\s*=\s*1/cgi.fix_pathinfo = 0/g; s/expose_php\s*=\s*On/expose_php = Off/g" \
/etc/php5/fpm/php.ini
RUN sed -i -e "s/expose_php\s*=\s*On/expose_php = Off/g" /etc/php5/fpm/php.ini
RUN sed -i -e "s/upload_max_filesize\s*=\s*2M/upload_max_filesize = 100M/g; s/post_max_size\s*=\s*8M/post_max_size = 100M/g" \
/etc/php5/fpm/php.ini
#RUN sed -i -e "s/post_max_size\s*=\s*8M/post_max_size = 100M/g" /etc/php5/fpm/php.ini

RUN sed -i -e "s/;daemonize\s*=\s*yes/daemonize = no/g" /etc/php5/fpm/php-fpm.conf

RUN sed -i -e "s/;catch_workers_output\s*=\s*yes/catch_workers_output = yes/g; s/listen\s*=\s*\/var\/run\/php5-fpm.sock/listen = 127.0.0.1:9000/g; s/;listen.allowed_clients\s*=\s*127.0.0.1/listen.allowed_clients = 127.0.0.1/g" \
/etc/php5/fpm/pool.d/www.conf
#RUN sed -i -e "s/listen\s*=\s*\/var\/run\/php5-fpm.sock/listen = 127.0.0.1:9000/g" /etc/php5/fpm/pool.d/www.conf
#RUN sed -i -e "s/;listen.allowed_clients\s*=\s*127.0.0.1/listen.allowed_clients = 127.0.0.1/g" /etc/php5/fpm/pool.d/www.conf


# ----------------------------------------------------------
# Opcode Config
# ----------------------------------------------------------

RUN sed -i -e"s/^;opcache.enable\s*=\s*0/opcache.enable = 1/; s/^;opcache.max_accelerated_files\s*=\s*2000/opcache.max_accelerated_files = 4000/" /etc/php5/fpm/php.ini
#RUN sed -i -e"s/^;opcache.max_accelerated_files\s*=\s*2000/opcache.max_accelerated_files = 4000/" /etc/php5/fpm/php.ini


# ===============================================================================
# Install & Config Supervisor
#
# Supervisor is a process manager which makes managing a number of long-running programs a trivial task
#   by providing a consistent interface through which they can be monitored and controlled.
#
# it uses `easy_install` (from `python-setuptools`) to install **supervisor**.
#
# @link http://supervisord.org/#
#

RUN /usr/bin/easy_install supervisor && \
	/usr/bin/easy_install supervisor-stdout
COPY  config/supervisord.conf /etc/supervisord.conf



# ===============================================================================
# Install Wordpress
#

# Get the code of  **latest** version.
RUN cd /usr/share/nginx/ && \
    curl -o wp-latest.tar.gz https://wordpress.org/latest.tar.gz && \
    tar -xvf wp-latest.tar.gz && \
    rm wp-latest.tar.gz

# Target **webroot** - `/usr/share/nginx/www`
RUN rm -rf /usr/share/nginx/www && \
	mv /usr/share/nginx/wordpress /usr/share/nginx/www && \
	chown -R www-data:www-data /usr/share/nginx/www



# ===============================================================================
# System Initialization
#

## Copy the **pre-defined** bash script
COPY bash/init.sh /init.sh
## Modify the permisison - make sure they are excuatable
RUN chmod 755 /init.sh

# Set up default CMD
CMD ["/bin/bash", "/init.sh"]

# ===============================================================================
# Copy "optional" scripts
#
# Under `/addon` folder.
#

# `letsencrypt` SSL related
# @link https://letsencrypt.org/ | letsencrypt
COPY bash/ssl-letsencrypt.sh /addon/letsencrypt/ssl-letsencrypt.sh

# Normal SSL related
COPY bash/ssl.sh /addon/ssl.sh

# Install WP plugins
COPY bash/wp-install-plugins.sh /addon/wp-install-plugins.sh


# ===============================================================================
# Volume Mounting
#
# - Wprdpress webroot
# - Log
#

# Mount the volumns
VOLUME ["/var/lib/mysql", "/usr/share/nginx/www", "/var/log"]


```
*Εκτέλεση:*

```
chmod +x ./Dockerfile
./Dockerfile
docker images
```



### 4. Δημιουργία docker-compose.yml


```
version: '3.7'

services:
  db:
    image: mariadb
    volumes:
      - db_data:/var/lib/mysql
    ports:
      - "3306:3306"
    networks: 
      - wp-net
    restart: always
    environment:
      MYSQL_ROOT_PASSWORD: wordpress
      MYSQL_DATABASE: wordpress
      MYSQL_USER: wordpress
      MYSQL_PASSWORD: wordpress
    deploy:
      placement:
          constraints: [node.role == worker]
      replicas: 1
      update_config:
        delay: 10s
      restart_policy:
        condition: on-failure

  wordpress:
    depends_on:
      - db
    image: wordpress:latest
    ports:
      - "9000:80"
    restart: always
    environment:
      WORDPRESS_DB_HOST: db:3306
      WORDPRESS_DB_USER: wordpress
      WORDPRESS_DB_PASSWORD: wordpress
      WORDPRESS_DB_NAME: wordpress
    volumes: 
      - wordpress:/var/www/html
    networks:
      - wp-net
    deploy:
      placement:
          constraints: [node.role == worker]
      replicas: 1
      resources: 
        limits: #max resources
          cpus: '0.50'
          memory: 50M
        reservations: #default resources
          cpus: '0.25'
          memory: 20M
      update_config:
        delay: 10s
      restart_policy:
        condition: on-failure
        
        
  nginx:
    image: nginx
    ports:
      - 80:80
      - 443:443
    volumes:
      - wordpress:/var/www/html
      - ./nginx.conf:/etc/nginx/conf.conf
    depends_on:
      - wordpress
    networks:
      - wp-net
    deploy:
      mode: replicated
      replicas: 1
      restart_policy:
        condition: on-failure

  minio1:
    image: minio/minio:RELEASE.2020-06-03T22-13-49Z
    hostname: minio1
    volumes:
      - minio1-data:/export
    ports:
      - "9005:9000"
    networks:
      - minio_distributed
    deploy:
      restart_policy:
        delay: 10s
        max_attempts: 10
        window: 60s
      placement:
        constraints:
          - node.labels.minio1==true
    command: server http://minio{1...4}/export
    secrets:
      - secret_key
      - access_key
    healthcheck:
      test: ["CMD", "curl", "-f", "http://localhost:9000/minio/health/live"]
      interval: 30s
      timeout: 20s
      retries: 3

  minio2:
    image: minio/minio:RELEASE.2020-06-03T22-13-49Z
    hostname: minio2
    volumes:
      - minio2-data:/export
    ports:
      - "9006:9000"
    networks:
      - minio_distributed
    deploy:
      restart_policy:
        delay: 10s
        max_attempts: 10
        window: 60s
      placement:
        constraints:
          - node.labels.minio2==true
    command: server http://minio{1...4}/export
    secrets:
      - secret_key
      - access_key
    healthcheck:
      test: ["CMD", "curl", "-f", "http://localhost:9000/minio/health/live"]
      interval: 30s
      timeout: 20s
      retries: 3

  minio3:
    image: minio/minio:RELEASE.2020-06-03T22-13-49Z
    hostname: minio3
    volumes:
      - minio3-data:/export
    ports:
      - "9007:9000"
    networks:
      - minio_distributed
    deploy:
      restart_policy:
        delay: 10s
        max_attempts: 10
        window: 60s
      placement:
        constraints:
          - node.labels.minio3==true
    command: server http://minio{1...4}/export
    secrets:
      - secret_key
      - access_key
    healthcheck:
      test: ["CMD", "curl", "-f", "http://localhost:9000/minio/health/live"]
      interval: 30s
      timeout: 20s
      retries: 3

  minio4:
    image: minio/minio:RELEASE.2020-06-03T22-13-49Z
    hostname: minio4
    volumes:
      - minio4-data:/export
    ports:
      - "9008:9000"
    networks:
      - minio_distributed
    deploy:
      restart_policy:
        delay: 10s
        max_attempts: 10
        window: 60s
      placement:
        constraints:
          - node.labels.minio4==true
    command: server http://minio{1...4}/export
    secrets:
      - secret_key
      - access_key
    healthcheck:
      test: ["CMD", "curl", "-f", "http://localhost:9000/minio/health/live"]
      interval: 30s
      timeout: 20s
      retries: 3

volumes:
  minio1-data:

  minio2-data:

  minio3-data:

  minio4-data:
  
  db_data:
  wordpress:

networks:
  wp-net:
  minio_distributed:
    driver: overlay

secrets:
  secret_key:
    external: true
  access_key:
    external: true


```



### 5. Swarm deploy

```
docker stack deploy -c docker-compose.yml wordpress
docker service ls
```



*Αποτελέσματα*

```
vihqdyawjc10        nefos_db                     replicated          1/1                 mariadb:latest                                               *:3306->3306/tcp
y7nbv60la2sg        nefos_minio1                 replicated          1/1                 minio/minio:RELEASE.2020-06-03T22-13-49Z                     *:9005->9000/tcp
0bcjccvpagd2        nefos_minio2                 replicated          1/1                 minio/minio:RELEASE.2020-06-03T22-13-49Z                     *:9006->9000/tcp
17vpuld32qui        nefos_minio3                 replicated          0/1                 minio/minio:RELEASE.2020-06-03T22-13-49Z                     *:9007->9000/tcp
0mbyzsuq5gvq        nefos_minio4                 replicated          0/1                 minio/minio:RELEASE.2020-06-03T22-13-49Z                     *:9008->9000/tcp
8izloz68b9ky        nefos_nginx                  replicated          1/1                 nginx:latest                                                 *:80->80/tcp, *:443->443/tcp
2cbg82sytzbg        nefos_wordpress              replicated          1/1                 wordpress:latest                                             *:9000->80/tcp
```



### 6. Nginx configuration

```
server {
    listen 80;
    server_name localhost;
 
    root /var/www/html;
    index index.php;
 
    access_log /var/log/nginx/wordpress-access.log;
    error_log /var/log/nginx/wordpress-error.log;
 
    location / {
        try_files $uri $uri/ /index.php?$args;
    }
 
    location ~ \.php$ {
        try_files $uri =404;
        fastcgi_split_path_info ^(.+\.php)(/.+)$;
        fastcgi_pass wordpress:9000;
        fastcgi_index index.php;
        include fastcgi_params;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        fastcgi_param PATH_INFO $fastcgi_path_info;
    }
}
```



### 7. Update Minio nodes

```
docker node update --label-add minio1=true snf-12364
docker node update --label-add minio2=true snf-12366
docker node update --label-add minio3=true snf-12565
docker node update --label-add minio4=true snf-12591
docker node update --label-add group=minio snf-12364
docker node update --label-add group=minio snf-12565
```