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By Matthew Setter / @webdevwithmatt Deploy PHP Apps with Docker Compose The Essentials

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Nice to meet you • @settermjd • @webdevwithmatt • Coding since 1996 • Mostly web-based apps • Once wrote VB/Access • Used Docker since 2015 I’m Matthew

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Want to Get in Touch? @webdevwithmatt https: // webdevwithmatt.com matthew@webdevwithmatt

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What Will You Learn?

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How to Deploy PHP Apps Using Docker Compose Picture: Docker Compose logo courtesy of Unixmen / https: // www.unixmen.com/container-docker-compose-ubuntu-16-04/

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What Will You Learn About Docker? 1 2 Build a local development environment Build a production environment from the development version 3 Build and tag self-contained Docker images

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What Will You Learn About Docker? 4 5 6 Push the Docker images to a Docker image registry Test the production deployment Deploy to production

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It's not a deep-dive into Docker Compose (or Docker)

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source: https://docs.docker.com/get-started/overview/#docker-architecture “ Docker uses a client-server architecture. The Docker client talks to the Docker daemon, which does the heavy lifting of building, running, and distributing your Docker containers. ” The Docker Architecture

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Can Be Easier Than... Picture: Docker Swarm logo courtesy of Sum Global / https: // sumglobal.com/wp-content/uploads/2017/07/docker-swarm-logo.png Picture: Kubernetes logo courtesy of wikimedia.org / https: // commons.wikimedia.org/wiki/File:Kubernetes_logo.svg

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Why Deploy With Docker?

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Why Deploy With Docker? • Can be a simpler • Use unified commands • Deploy to production like development • Share setups • Integrate with CI/CD tools

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What Do You Need?

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What Do You Need? • A broad familiarity with Docker • Docker Engine on Linux • Docker Desktop on macOS and Microsoft Windows • Docker Compose V2 • A Docker image registry • A deployment server running Docker

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The Demo PHP Application

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The Application’s Composition PHP Webserver Database 8.1 NGINX MariaDB

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“One process or service per container” source: https://docs.docker.com/config/containers/multi-service_container/

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The File Structure 1 2 3 4 5 6

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docker ├── nginx │ ├── default.conf │ └── Dockerfile ├── php │ └── Dockerfile ├── database │ ├── Dockerfile │ └── dump.sql ├── docker-compose.prod.yml ├── docker-compose.dev.yml 
 └── docker-compose.yml The file & directory structure

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The file & directory structure Sub-divided by service docker ├── nginx │ ├── default.conf │ └── Dockerfile ├── php │ └── Dockerfile ├── database │ ├── Dockerfile │ └── dump.sql ├── docker-compose.prod.yml ├── docker-compose.dev.yml 
 └── docker-compose.yml

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The file & directory structure A Dockerfiles and supporting files docker ├── nginx │ ├── default.conf │ └── Dockerfile ├── php │ └── Dockerfile ├── database │ ├── Dockerfile │ └── dump.sql ├── docker-compose.prod.yml ├── docker-compose.dev.yml 
 └── docker-compose.yml

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The file & directory structure A base Docker Compose file docker ├── nginx │ ├── default.conf │ └── Dockerfile ├── php │ └── Dockerfile ├── database │ ├── Dockerfile │ └── dump.sql ├── docker-compose.dev.yml ├── docker-compose.prod.yml └── docker-compose.yml

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The file & directory structure Environment-specific Docker Compose files docker ├── nginx │ ├── default.conf │ └── Dockerfile ├── php │ └── Dockerfile ├── database │ ├── Dockerfile │ └── dump.sql ├── docker-compose.prod.yml ├── docker-compose.dev.yml 
 └── docker-compose.yml

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Create the Core Dockerfiles 1 2 3 4 5 6

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FROM php:8.1.1-fpm-alpine3.15 as base RUN docker-php-ext-install pdo_mysql RUN if [ "$ENV" = "development" ]; then \ RUN docker-php-ext-install pecl install xdebug \ && docker-php-ext-enable xdebug; \ fi The PHP Dockerfile

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“With multi-stage builds, you use multiple FROM statements in your Dockerfile.” source: https://docs.docker.com/develop/develop-images/multistage-build/#use-multi-stage-builds

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The PHP Dockerfile FROM php:8.1.1-fpm-alpine3.15 as base RUN docker-php-ext-install pdo_mysql RUN if [ "$ENV" = "development" ]; then \ RUN docker-php-ext-install pecl install xdebug \ && docker-php-ext-enable xdebug; \ fi

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The PHP Dockerfile FROM php:8.1.1-fpm-alpine3.15 as base RUN docker-php-ext-install pdo_mysql RUN if [ "$ENV" = "development" ]; then \ RUN docker-php-ext-install pecl install xdebug \ && docker-php-ext-enable xdebug; \ fi

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The PHP Dockerfile FROM php:8.1.1-fpm-alpine3.15 as base RUN docker-php-ext-install pdo_mysql RUN if [ "$ENV" = "development" ]; then \ RUN docker-php-ext-install pecl install xdebug \ && docker-php-ext-enable xdebug; \ fi

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FROM php:8.1.1-fpm-alpine3.15 as composer RUN apk add - - update git RUN curl -- silent - - fail -- location -- retry 3 -- output /tmp/installer.php -- url https: / / raw.githubusercontent.com/composer/getcomposer.org/cb19f2aa3aeaa2006c0cd69a7ef011eb31463067/web/ installer \ && php -r " \ \$signature = '48e3236262b34d30969dca3c37281b3b4bbe3221bda826ac6a9a62d6444cdb0dcd0615698a5cbe587c3f0fe57a54d8f5'; \ \$hash = hash('sha384', file_get_contents('/tmp/installer.php')); \ if (!hash_equals(\$signature, \$hash)) { \ unlink('/tmp/installer.php'); \ echo 'Integrity check failed, installer is either corrupt or worse.' . PHP_EOL; \ exit(1); \ }" \ && php /tmp/installer.php -- no-ansi - - install-dir=/usr/bin -- filename=composer \ && composer -- ansi -- version -- no-interaction \ && rm -f /tmp/installer.php The PHP Dockerfile

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FROM php:8.1.1-fpm-alpine3.15 as composer RUN apk add - - update git RUN curl -- silent - - fail -- location -- retry 3 -- output /tmp/installer.php -- url https: / / raw.githubusercontent.com/composer/getcomposer.org/cb19f2aa3aeaa2006c0cd69a7ef011eb31463067/web/ installer \ && php -r " \ \$signature = '48e3236262b34d30969dca3c37281b3b4bbe3221bda826ac6a9a62d6444cdb0dcd0615698a5cbe587c3f0fe57a54d8f5'; \ \$hash = hash('sha384', file_get_contents('/tmp/installer.php')); \ if (!hash_equals(\$signature, \$hash)) { \ unlink('/tmp/installer.php'); \ echo 'Integrity check failed, installer is either corrupt or worse.' . PHP_EOL; \ exit(1); \ }" \ && php /tmp/installer.php -- no-ansi - - install-dir=/usr/bin -- filename=composer \ && composer -- ansi -- version -- no-interaction \ && rm -f /tmp/installer.php The PHP Dockerfile

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FROM php:8.1.1-fpm-alpine3.15 as composer RUN apk add - - update git RUN curl -- silent - - fail -- location -- retry 3 -- output /tmp/installer.php -- url https: / / raw.githubusercontent.com/composer/getcomposer.org/cb19f2aa3aeaa2006c0cd69a7ef011eb31463067/web/ installer \ && php -r " \ \$signature = '48e3236262b34d30969dca3c37281b3b4bbe3221bda826ac6a9a62d6444cdb0dcd0615698a5cbe587c3f0fe57a54d8f5'; \ \$hash = hash('sha384', file_get_contents('/tmp/installer.php')); \ if (!hash_equals(\$signature, \$hash)) { \ unlink('/tmp/installer.php'); \ echo 'Integrity check failed, installer is either corrupt or worse.' . PHP_EOL; \ exit(1); \ }" \ && php /tmp/installer.php -- no-ansi - - install-dir=/usr/bin -- filename=composer \ && composer -- ansi -- version -- no-interaction \ && rm -f /tmp/installer.php The PHP Dockerfile

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FROM php:8.1.1-fpm-alpine3.15 as dependencies WORKDIR /var/www/html COPY . . COPY -- from=composer /usr/bin/composer /usr/bin/ RUN /usr/bin/composer install \ -- no-dev - - no-ansi -- no-plugins -- no-progress -- no-scripts \ -- classmap-authoritative -- no-interaction \ -- quiet The PHP Dockerfile

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FROM php:8.1.1-fpm-alpine3.15 as dependencies WORKDIR /var/www/html COPY . . COPY -- from=composer /usr/bin/composer /usr/bin/ RUN /usr/bin/composer install \ -- no-dev - - no-ansi -- no-plugins -- no-progress -- no-scripts \ -- classmap-authoritative -- no-interaction \ -- quiet The PHP Dockerfile

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FROM php:8.1.1-fpm-alpine3.15 as dependencies WORKDIR /var/www/html COPY . . COPY -- from=composer /usr/bin/composer /usr/bin/ RUN /usr/bin/composer install \ -- no-dev - - no-ansi -- no-plugins -- no-progress -- no-scripts \ -- classmap-authoritative -- no-interaction \ -- quiet The PHP Dockerfile

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FROM php:8.1.1-fpm-alpine3.15 as dependencies WORKDIR /var/www/html COPY . . COPY -- from=composer /usr/bin/composer /usr/bin/ RUN /usr/bin/composer install \ -- no-dev - - no-ansi -- no-plugins -- no-progress -- no-scripts \ -- classmap-authoritative -- no-interaction \ -- quiet The PHP Dockerfile

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FROM php:8.1.1-fpm-alpine3.15 as final WORKDIR /var/www/html COPY -- from=dependencies /var/www/html . The PHP Dockerfile

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FROM php:8.1.1-fpm-alpine3.15 as final WORKDIR /var/www/html COPY -- from=dependencies /var/www/html . The PHP Dockerfile

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FROM php:8.1.1-fpm-alpine3.15 as final WORKDIR /var/www/html COPY -- from=dependencies /var/www/html . The PHP Dockerfile

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FROM php:8.1.1-fpm-alpine3.15 as base A Few Dockerfile Tips

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ARG ALPINE_VERSION=3.15 ARG PHP_VERSION=8.1.1 FROM php:${PHP_VERSION}-fpm-alpine${ALPINE_VERSION} as base The PHP Dockerfile

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ARG ALPINE_VERSION=3.15 ARG PHP_VERSION=8.1.1 FROM php:${PHP_VERSION}-fpm-alpine${ALPINE_VERSION} as base FROM base as extensions The PHP Dockerfile

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I 😍 Alpine Linux Picture: Alpine Linux logo courtesy of techcentral.ie / http: // www.techcentral.ie/wp-content/uploads/2017/02/Alpine_Linux_logo_web.jpg

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• Smaller than other distros • Around 5MB in size • Reduces hosting costs • Reduces transfer costs • Reduces deployment time • Is a Docker best practice I 😍 Alpine Linux Picture: Alpine Linux logo courtesy of techcentral.ie / http: // www.techcentral.ie/wp-content/uploads/2017/02/Alpine_Linux_logo_web.jpg

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FROM mariadb:latest COPY ./docker/database/dump.sql \ /docker-entrypoint-initdb.d/dump.sql The Database Dockerfile

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FROM mariadb:latest COPY ./docker/database/dump.sql \ /docker-entrypoint-initdb.d/dump.sql The Database Dockerfile

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DROP TABLE IF EXISTS records; CREATE TABLE records ( id int unsigned NOT NULL, first_name varchar(200) NOT NULL, last_name varchar(200) NOT NULL, email_address varchar(255) NOT NULL, PRIMARY KEY (id) ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4; dump.sql

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LOCK TABLES records WRITE; INSERT INTO records VALUES (2,'Steve','McGarrett','[email protected]'), (3,'Danny','Williams','[email protected]'), (4,'Kamekona','','[email protected]'),(5,'Chin Ho','Kelly','[email protected]'), (6,'Kono','Kalakaua','[email protected]'), (7,'Lou','Grover','[email protected]'), (8,'Duke','Lukela','[email protected]'), (9,'Max','Bergman','[email protected]'), (10,'Jerry','Ortega','[email protected]'), (11,'Adam','Noshimuri','[email protected]'); UNLOCK TABLES; dump.sql

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The Docker Compose Configuration 1 2 3 4 5 6

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docker-compose.yml

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volumes: database_data: driver: local A Persistable Volume

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services: nginx: restart: unless-stopped depends_on: - php healthcheck: test: ["CMD", "curl", "-f", "http: // localhost:8000/api/ping"] interval: 60s timeout: 3s retries: 3 The NGINX Service Configuration

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services: nginx: restart: unless-stopped depends_on: - php healthcheck: test: ["CMD", "curl", "-f", "http: // localhost:8000/api/ping"] interval: 60s timeout: 3s retries: 3 The NGINX Service Configuration

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The NGINX Service Configuration services: nginx: restart: unless-stopped depends_on: - php healthcheck: test: ["CMD", "curl", "-f", "http: // localhost:8000/api/ping"] interval: 60s timeout: 3s retries: 3

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The restart Directive’s Options Setting Description no Docker does not restart a container for any reason. always Docker will always restart a container if it stops. If it is manually stopped, it is restarted only when Docker daemon restarts or the container itself is manually restarted. on-failure Docker will restart a container if the exit code indicates an on-failure error. unless-stopped Docker will always restart a container — except when the container is stopped (manually or otherwise).

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The restart Directive’s Options Setting Description no Docker does not restart a container for any reason. always Docker will always restart a container if it stops. If it is manually stopped, it is restarted only when Docker daemon restarts or the container itself is manually restarted. on-failure Docker will restart a container if the exit code indicates an on-failure error. unless-stopped Docker will always restart a container — except when the container is stopped (manually or otherwise).

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The restart Directive’s Options Setting Description no Docker does not restart a container for any reason. always Docker will always restart a container if it stops. If it is manually stopped, it is restarted only when Docker daemon restarts or the container itself is manually restarted. on-failure Docker will restart a container if the exit code indicates an on-failure error. unless-stopped Docker will always restart a container — except when the container is stopped (manually or otherwise).

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The restart Directive’s Options Setting Description no Docker does not restart a container for any reason. always Docker will always restart a container if it stops. If it is manually stopped, it is restarted only when Docker daemon restarts or the container itself is manually restarted. on-failure Docker will restart a container if the exit code indicates an on-failure error. unless-stopped Docker will always restart a container — except when the container is stopped (manually or otherwise).

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The restart Directive’s Options Setting Description no Docker does not restart a container for any reason. always Docker will always restart a container if it stops. If it is manually stopped, it is restarted only when Docker daemon restarts or the container itself is manually restarted. on-failure Docker will restart a container if the exit code indicates an on-failure error. unless-stopped Docker will always restart a container — except when the container is stopped (manually or otherwise).

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services: nginx: restart: unless-stopped depends_on: - php healthcheck: test: ["CMD", "curl", "-f", "http: // localhost:8000/api/ping"] interval: 60s timeout: 3s retries: 3 The NGINX Service Configuration

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services: nginx: restart: unless-stopped depends_on: - php healthcheck: test: ["CMD", "curl", "-f", "http: // localhost:8000/api/ping"] interval: 60s timeout: 3s retries: 3 The NGINX Service Configuration

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php: restart: unless-stopped expose: - 9000 The PHP Service Configuration

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php: restart: unless-stopped expose: - 9000 The PHP Service Configuration

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php: restart: unless-stopped expose: - 9000 The PHP Service Configuration

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php: restart: unless-stopped expose: - 9000 The PHP Service Configuration

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database: restart: unless-stopped build: ./docker/database/ ports: - 3306:3306 The Database Service Configuration

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database: restart: unless-stopped build: ./docker/database/ ports: - 3306:3306 The Database Service Configuration

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database: restart: unless-stopped build: ./docker/database/ ports: - 3306:3306 The Database Service Configuration

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database: restart: unless-stopped build: ./docker/database/ ports: - 3306:3306 The Database Service Configuration

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docker-compose.dev.yml

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services: nginx: image: nginx:latest ports: - 8080:80 volumes: - ./docker/nginx/default.conf:/etc/nginx/conf.d/default.conf - ./:/var/www/html The NGINX Service Configuration

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services: nginx: image: nginx:latest ports: - 8080:80 volumes: - ./docker/nginx/default.conf:/etc/nginx/conf.d/default.conf - ./:/var/www/html The NGINX Service Configuration

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services: nginx: image: nginx:latest ports: - 8080:80 volumes: - ./docker/nginx/default.conf:/etc/nginx/conf.d/default.conf - ./:/var/www/html The NGINX Service Configuration

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services: nginx: image: nginx:latest ports: - 8080:80 volumes: - ./docker/nginx/default.conf:/etc/nginx/conf.d/default.conf - ./:/var/www/html The NGINX Service Configuration

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server { # ... other configuration options location / { try_files $uri $uri/ /index.php; } location ~ \.php$ { fastcgi_split_path_info ^(.+\.php)(/.+)$; fastcgi_pass php:9000; fastcgi_index index.php; include fastcgi_params; fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name; fastcgi_param APPLICATION_ENV development; fastcgi_intercept_errors off; fastcgi_buffer_size 16k; fastcgi_buffers 4 16k; } }

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The PHP Service Configuration php: build: context: ./ dockerfile: docker/php/Dockerfile target: base args: ENV: development volumes: - .:/var/www/html

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The PHP Service Configuration php: build: context: ./ dockerfile: docker/php/Dockerfile target: base args: ENV: development volumes: - .:/var/www/html

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The PHP Service Configuration php: build: context: ./ dockerfile: docker/php/Dockerfile target: base args: ENV: development volumes: - .:/var/www/html

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database: environment: MARIADB_DATABASE: hawaii-five-0 MARIADB_USER: user MARIADB_PASSWORD: password volumes: - ./data/database:/var/lib/mysql/ The Database Service Configuration

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database: environment: MARIADB_DATABASE: hawaii-five-0 MARIADB_USER: user MARIADB_PASSWORD: password volumes: - ./data/database:/var/lib/mysql/ The Database Service Configuration

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database: environment: MARIADB_DATABASE: hawaii-five-0 MARIADB_USER: user MARIADB_PASSWORD: password volumes: - ./data/database:/var/lib/mysql/ The Database Service Configuration

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Deploy the Application Locally

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docker compose \ -- file docker-compose.yml \ 
 -- file docker-compose.dev.yml \ up -- build Deploy the Application Locally

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[+] Running 4/4 ⠿ Network docker-essentials-test-build_default Created 0.1s ⠿ Container docker-essentials-test-build_php_1 Created 0.2s ⠿ Container docker-essentials-test-build_nginx_1 Created 0.3s ⠿ Container docker-essentials-test-build_database_1 Created 1.2s Attaching to database_1, nginx_1, php_1 php_1 | [18-Nov-2021 13:19:29] NOTICE: fpm is running, pid 1 php_1 | [18-Nov-2021 13:19:29] NOTICE: ready to handle connections nginx_1 | /docker-entrypoint.sh: Looking for shell scripts in /docker-entrypoint.d/ nginx_1 | 2021/11/18 13:19:30 [notice] 1#1: using the "epoll" event method nginx_1 | 2021/11/18 13:19:30 [notice] 1#1: nginx/1.21.3 nginx_1 | 2021/11/18 13:19:30 [notice] 1#1: built by gcc 8.3.0 (Debian 8.3.0-6) nginx_1 | 2021/11/18 13:19:30 [notice] 1#1: OS: Linux 5.10.47-linuxkit nginx_1 | 2021/11/18 13:19:30 [notice] 1#1: start worker processes nginx_1 | 2021/11/18 13:19:30 [notice] 1#1: start worker process 32 nginx_1 | 2021/11/18 13:19:30 [notice] 1#1: start worker process 33 Docker Compose Up Output

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docker pull nginx:alpine docker pull php:8.1.1-fpm-alpine3.15 docker pull mariadb:latest Save Some Time With docker pull

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podman pull docker.io/library/nginx:alpine Be careful when using Podman or Kubernetes

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docker compose \ 
 -- file docker-compose.yml \ 
 -- file docker-compose.dev.yml \ up -d Deploy the Application Locally

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Are the Containers Working as Expected?

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docker compose ps docker compose \ -- file docker-compose.yml \ 
 -- file docker-compose.dev.yml \ ps NAME COMMAND SERVICE STATUS PORTS docker-essentials_database_1 "docker-entrypoint.s…" database running 0.0.0.0:3306 -> 3306/tcp, 33060/tcp docker-essentials_nginx_1 "/docker-entrypoint.…" nginx running 0.0.0.0:8080 -> 80/tcp, docker-essentials_php_1 "docker-php-entrypoi…" php running 9000/tcp

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docker compose ps docker compose \ -- file docker-compose.yml \ 
 -- file docker-compose.dev.yml \ ps database NAME COMMAND SERVICE STATUS PORTS docker-essentials_database_1 "docker-entrypoint.s…" database running 0.0.0.0:3306 -> 3306/tcp, 33060/tcp

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docker compose logs docker compose \ -- file docker-compose.yml \ 
 -- file docker-compose.dev.yml \ logs -- follow database

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Quick Recap • Created an intuitive directory structure • Created Dockerfiles & supporting files for each service • Created a Docker Compose configuration • Deployed the application locally • Did basic testing and debugging

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Create the Production Files 1 2 3 4 5 6

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The NGINX Dockerfile

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FROM nginx:alpine WORKDIR /var/www/html COPY ./docker/nginx/default.prod.conf /etc/nginx/conf.d/default.conf COPY . . RUN apk add -- update nodejs npm \ && npm install RUN NODE_ENV=production npx tailwindcss \ -i src/css/styles.css \ -o public/css/styles.css \ -- minify The NGINX Production Dockerfile

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FROM nginx:alpine WORKDIR /var/www/html COPY ./docker/nginx/default.prod.conf /etc/nginx/conf.d/default.conf COPY . . RUN apk add -- update nodejs npm \ && npm install RUN NODE_ENV=production npx tailwindcss \ -i src/css/styles.css \ -o public/css/styles.css \ -- minify The NGINX Production Dockerfile

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FROM nginx:alpine WORKDIR /var/www/html COPY ./docker/nginx/default.prod.conf /etc/nginx/conf.d/default.conf COPY . . RUN apk add -- update nodejs npm \ && npm install RUN NODE_ENV=production npx tailwindcss \ -i src/css/styles.css \ -o public/css/styles.css \ -- minify The NGINX Production Dockerfile

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FROM nginx:alpine WORKDIR /var/www/html COPY ./docker/nginx/default.prod.conf /etc/nginx/conf.d/default.conf COPY . . RUN apk add -- update nodejs npm \ && npm install RUN NODE_ENV=production npx tailwindcss \ -i src/css/styles.css \ -o public/css/styles.css \ -- minify The NGINX Production Dockerfile

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FROM nginx:alpine WORKDIR /var/www/html COPY ./docker/nginx/default.prod.conf /etc/nginx/conf.d/default.conf COPY . . RUN apk add -- update nodejs npm \ && npm install RUN NODE_ENV=production npx tailwindcss \ -i src/css/styles.css \ -o public/css/styles.css \ -- minify The NGINX Production Dockerfile

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FROM nginx:alpine WORKDIR /var/www/html COPY ./docker/nginx/default.prod.conf /etc/nginx/conf.d/default.conf COPY . . RUN apk add -- update nodejs npm \ && npm install RUN NODE_ENV=production npx tailwindcss \ -i src/css/styles.css \ -o public/css/styles.css \ -- minify The NGINX Production Dockerfile

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Create the Production Docker Compose Configuration

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volumes: database_data: driver: local The Production Docker Compose File

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services: nginx: image: webdevwithmatt/webserver-alpine:latest ports: - 80:80 The Production Docker Compose File

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services: nginx: image: webdevwithmatt/webserver-alpine:latest ports: - 80:80 The Production Docker Compose File

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php: image: webdevwithmatt/php-runtime-alpine:latest The Production Docker Compose File

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database: image: webdevwithmatt/database-alpine:latest environment: - MARIADB_DATABASE - MARIADB_USER - MARIADB_PASSWORD The Production Docker Compose File

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database: image: webdevwithmatt/database-alpine:latest environment: - MARIADB_DATABASE - MARIADB_USER - MARIADB_PASSWORD The Production Docker Compose File

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Build & Push the Docker Images 1 2 3 4 5 6

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docker build \ -- file ./docker/nginx/Dockerfile \ -- tag webdevwithmatt/webserver-alpine:latest . docker build \ -- file ./docker/php/Dockerfile \ -- tag webdevwithmatt/php-runtime-alpine:latest . docker build \ -- file ./docker/database/Dockerfile \ -- tag webdevwithmatt/database-alpine:latest . Build the Docker Images

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docker build \ -- file ./docker/php/Dockerfile \ -- tag webdevwithmatt/php-runtime-alpine:latest \ . Build the Docker Images

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docker build \ -- file ./docker/php/Dockerfile \ -- tag webdevwithmatt/php-runtime-alpine:latest \ . Build the Docker Images

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Check the Images

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$ docker images REPOSITORY TAG IMAGE ID CREATED SIZE webdevwithmatt/webserver-alpine latest 8c6f620e0709 9 seconds ago 432MB webdevwithmatt/php-runtime-alpine latest 6544148b5c30 9 seconds ago 495MB webdevwithmatt/database-alpine latest 6544148b5c30 9 seconds ago 495MB Check the Docker Images

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docker images -- filter=reference='registry*/*/*:latest' Filter Docker Images

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Push the Images

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docker login - - username -- password docker push webdevwithmatt/webserver-alpine:latest docker push webdevwithmatt/php-runtime-alpine:latest docker push webdevwithmatt/database-alpine:latest Push the Docker Images

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Test the Deployment

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Set Environment Variables

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export MARIADB_DATABASE=project_db export MARIADB_USER=user export MARIADB_PASSWORD=password Set Environment Variables

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docker compose \ -- file docker-compose.yml \ -- file docker-compose.prod.yml \ up -d Test the Deployment

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docker compose \ -- file docker-compose.yml \ -- file docker-compose.prod.yml \ ps Test the Deployment

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docker compose \ -- file docker-compose.yml \ -- file docker-compose.prod.yml \ down Test the Deployment

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Deploy to Production 1 2 3 4 5 6

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Deploy to Production • Set DOCKER_HOST • Use -H or --host options with Docker commands • Use a Docker Context

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Deploy to Production DOCKER_HOST=ssh: / / webdevwithmatt@ docker compose up export DOCKER_HOST=ssh: // webdevwithmatt@ && \ docker compose up docker -H ssh: // webdevwithmatt@ compose up docker - - host ssh: / / webdevwithmatt@ compose up

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source: https://docs.docker.com/engine/context/working-with-contexts/ A single Docker CLI can have multiple contexts. Each context contains all of the endpoint and security information required to manage a different cluster or node. The docker context command makes it easy to configure these contexts and switch between them.

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Docker Contexts • Create a context • Set it as the default context • Run Docker commands

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Docker Contexts docker context create remote \ -docker "host=ssh: / / deploy@" docker context use remote

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docker context ls NAME TYPE DESCRIPTION DOCKER ENDPOINT default moby Current DOCKER_HOST based configuration unix: // / var/run/docker.sock remote * moby ssh: // webdevwithmatt@ Verify the Context

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Deploy to Production docker compose \ -- file docker-compose.yml \ -- file docker-compose.prod.yml \ up -d

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Did It Work?

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docker compose \ -- file docker-compose.yml \ -- file docker-compose.prod.yml \ ps Check That it Worked

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Final Recap

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Final Recap 1. Built the application image 2. Stored the image in an accessible registry 3. Set the Docker daemon to communicate with 4. Built a deployment configuration 5. Deployed the application to a remote host

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What About a Build Pipeline?

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What About a Build Pipeline? Picture: Github Actions courtesy of dev.to / https: // res.cloudinary.com/practicaldev/image/fetch/s -- vBB9KCW4 -- /c_imagga_scale,f_auto,fl_progressive,h_420,q_auto,w_1000/https: // dev-to-uploads.s3.amazonaws.com/i/twfkvzk83m0cpjwz26js.png 
 Picture: circleci logo courtesy of freelogovectors.net / https: // cdn.freelogovectors.net/wp-content/uploads/2020/11/circle-ci-logo.png Picture: TeamCity logo courtesy of freebiesupply.com / https: // cdn.freebiesupply.com/logos/large/2x/teamcity-icon-logo-png-transparent.png

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Want to Dive Deeper? https: // deploywithdockercompose.com

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Want to Dive Deeper? • It goes into greater depth • It's packed with tips and tricks • It's free... • ...in return for your email address Get the book! https: / / deploywithdockercompose.com

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Thank You

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Questions?