Docker Slow Response Time with Laravel API calls - php

Question

Docker Response Time
Does anyone have any idea why response time takes up to 1500 ms when using docker ?
While when I run in my local machine it's only ~200 ms which's reasonable
my docker-compose.yml file
version: "3.4"
networks:
backend:
driver: bridge
services:
mysql:
image: mysql:8.0
container_name: mysql
restart: unless-stopped
ports:
- 3307:3306
environment:
- MYSQL_ROOT_PASSWORD=securerootpassword
- MYSQL_DATABASE=${DB_DATABASE}
- MYSQL_USER=${DB_USERNAME}
- MYSQL_PASSWORD=${DB_PASSWORD}
networks:
backend:
aliases:
- db-network
app:
container_name: laravel_app
build:
context: .
dockerfile: ./docker/8.0/php/Dockerfile
args:
WWWGROUP: '1000'
ports:
- '${APP_PORT:-80}:80'
networks:
backend:
aliases:
- laravel-app-network
volumes:
- '.:/var/www/html' # tried - '.:/var/www/html:cached' same results
depends_on:
- mysql
my docker/8.0/php/Dockerfile
FROM ubuntu:21.04
USER root
ARG WWWGROUP
WORKDIR /var/www/html
ENV DEBIAN_FRONTEND noninteractive
ENV TZ=UTC
RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
RUN apt-get update && apt-get install -y \
libpng-dev \
zlib1g-dev \
libxml2-dev \
libzip-dev \
libonig-dev \
zip \
curl \
unzip \
webp \
gnupg \
gosu \
ca-certificates \
git \
supervisor \
libcap2-bin \
python3
RUN mkdir -p ~/.gnupg \
&& chmod 600 ~/.gnupg \
&& echo "disable-ipv6" >> ~/.gnupg/dirmngr.conf \
&& apt-key adv --homedir ~/.gnupg --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys E5267A6C \
&& apt-key adv --homedir ~/.gnupg --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys C300EE8C
RUN echo "deb http://ppa.launchpad.net/ondrej/php/ubuntu hirsute main" > /etc/apt/sources.list.d/ppa_ondrej_php.list \
&& curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | apt-key add - \
&& echo "deb https://dl.yarnpkg.com/debian/ stable main" > /etc/apt/sources.list.d/yarn.list \
&& curl -sL https://deb.nodesource.com/setup_16.x | bash -
RUN apt-get update && apt-get install -y php8.0-cli php8.0-dev \
php8.0-pgsql php8.0-sqlite3 php8.0-gd \
php8.0-curl php8.0-memcached \
php8.0-imap php8.0-mysql php8.0-mbstring \
php8.0-xml php8.0-zip php8.0-bcmath php8.0-soap \
php8.0-intl php8.0-readline php8.0-pcov \
php8.0-msgpack php8.0-igbinary php8.0-ldap \
php8.0-redis php8.0-swoole
RUN php -r "readfile('http://getcomposer.org/installer');" | php -- --install-dir=/usr/bin/ --filename=composer
RUN apt-get install -y nodejs \
&& npm install -g npm
RUN apt-get install -y mysql-client
RUN setcap "cap_net_bind_service=+ep" /usr/bin/php8.0
RUN groupadd --force -g $WWWGROUP sail
RUN useradd -ms /bin/bash --no-user-group -g $WWWGROUP -u 1337 sail
COPY ./docker/8.0/start-container /usr/local/bin/start-container
COPY ./docker/8.0/supervisord.conf /etc/supervisor/conf.d/supervisord.conf
COPY ./docker/8.0/php.ini /etc/php/8.0/cli/conf.d/99-sail.ini
RUN chmod +x /usr/local/bin/start-container
EXPOSE 80
ENTRYPOINT ["start-container"]
CPU Usage
Not to mention when on idle state it might take up to 3-4 seconds
Does it have to do with CPU usage ?
on an api call request it geos up to 17-20 % during the 1400 ms and back to 0.01%
note taht it's modified sail Dockerfile provided by Laravel
the same issue consist if used sail out of the box
Also, I insured that all dependencies in Dockerfile are installed on my local machine, and still the same issue.

Answer 1

Problem Resolved:
It turned out to be windows/WSL related issue, that my development environment was built on windows running a Ubuntu 20.04 LTS /mnt/c/Users/<username>/code-directory
I migrated the entire code to the actual ubuntu absolute path /var/www/html/code-directory like in a production server and it's working perfectly. And made changes to Dockerfile accordingly.
Response time is ~100ms which's faster than localhost of windows OS 200ms