Docker

• Interactive shell (commandline)
• Install ping tools (for diagnostics)
• php8.2-fpm with nginx base

Interactive shell (commandline)

Sometimes it's difficult to understand problems within a docker. Like network issues or configurations that need to be adjusted.
It's quite easy to log into a docker via command line.

1) open a command line (it can be that you need to activate SSH access) on the hosting system

2) find the docker image you're interested in

docker ps

3) open a shell to the docker using the id from the previous query

docker exec -it c05876343 /bin/bash

Now you should be inside the docker. To leave the session just type 

exit

Install ping tools (for diagnostics)

Ping is an utility to see if another host is reachable.
In some cases, dockers can be isolated and it can be daunting to try to understand who can see whom.

Using ping can help diagnosing some problems

Log into the docker (see interactive-shell-commandline )

And execute the following commands, so you can "ping"

apt-get update -y
apt-get install -y iputils-ping

php8.2-fpm with nginx base

Composed from different sources to fit my purpose.

Requires docker to be running on the machine.

This will create a docker image with PHP8.2 using Nginx - which is usable for Laravel.

It's easiest to put the dockerfile together the script Dockerbuild.bat and run the script.

Dockerfile

FROM ubuntu:latest AS base
ENV DEBIAN_FRONTEND noninteractive

# Install dependencies
RUN apt update
RUN apt install -y software-properties-common
RUN add-apt-repository -y ppa:ondrej/php
RUN apt update
RUN apt install -y php8.2\
    php8.2-cli\
    php8.2-common\
    php8.2-fpm\
    php8.2-mysql\
    php8.2-zip\
    php8.2-gd\
    php8.2-mbstring\
    php8.2-curl\
    php8.2-xml\
    php8.2-bcmath\
    php8.2-pdo

# Install php-fpm
RUN apt install -y php8.2-fpm php8.2-cli

# Install composer
RUN apt install -y curl
RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer

# Install nodejs
RUN apt install -y ca-certificates gnupg
RUN mkdir -p /etc/apt/keyrings
RUN curl -fsSL https://deb.nodesource.com/gpgkey/nodesource-repo.gpg.key | gpg --dearmor -o /etc/apt/keyrings/nodesource.gpg
ENV NODE_MAJOR 20
RUN echo "deb [signed-by=/etc/apt/keyrings/nodesource.gpg] https://deb.nodesource.com/node_$NODE_MAJOR.x nodistro main" | tee /etc/apt/sources.list.d/nodesource.list
RUN apt update
RUN apt install -y nodejs
RUN apt install -y git
# Install nginx
RUN apt install -y nginx
RUN echo "\
    server {\n\
        listen 80;\n\
        listen [::]:80;\n\
        root /var/www/BookStack/public;\n\
        add_header X-Frame-Options \"SAMEORIGIN\";\n\
        add_header X-Content-Type-Options \"nosniff\";\n\
        index index.php;\n\
        charset utf-8;\n\
        location / {\n\
            try_files \$uri \$uri/ /index.php?\$query_string;\n\
        }\n\
        location = /favicon.ico { access_log off; log_not_found off; }\n\
        location = /robots.txt  { access_log off; log_not_found off; }\n\
        error_page 404 /index.php;\n\
        location ~ \.php$ {\n\
            fastcgi_pass unix:/run/php/php8.2-fpm.sock;\n\
            fastcgi_param SCRIPT_FILENAME \$realpath_root\$fastcgi_script_name;\n\
            include fastcgi_params;\n\
        }\n\
        location ~ /\.(?!well-known).* {\n\
            deny all;\n\
        }\n\
    }\n" > /etc/nginx/sites-available/default

RUN echo "\
    #!/bin/sh\n\
    echo \"Starting services...\"\n\
    service php8.2-fpm start\n\
    nginx -g \"daemon off;\" &\n\
    echo \"Ready.\"\n\
    tail -s 1 /var/log/nginx/*.log -f\n\
    " > /start.sh

EXPOSE 80

CMD ["sh", "/start.sh"]

 

Dockerbuild.bat

With environment variables:

docker build --no-cache -t phpnginx:latest .
docker save phpnginx > phpnginx.tar
docker run --env-file .env -d -p 5050:80 phpnginx:latest

example .env

# Database details
DB_HOST='127.0.0.1' #change with  yours
DB_PORT='234' # change with yours
DB_DATABASE='yourdbname'
DB_USERNAME='yourdbuser'
DB_PASSWORD='yourpass'

 

Without environment variables:

docker build --no-cache -t phpnginx:latest .
docker save phpnginx > phpnginx.tar
docker run -d -p 5050:80 phpnginx:latest