I am new to Google compute engine VM with docker, having a problem connecting some domains from inside containers. But able to connect those domains from the GCP CE VM instance. Any idea about this? also, can you let me know where I can find those HTTP_PROXY / HTTPS_PROXY IP / host addresses in Google compute engine VM? thx!
I have tried the same docker setup in my local system (WSL) and it's working correctly.
Please see the below images:
In GCE VM (The dockerd host system), there is no issue:
unify@unify-dev-environment:~/projects$ curl -I https://google.com
HTTP/2 301
location: https://www.google.com/
content-type: text/html; charset=UTF-8
content-security-policy-report-only: object-src 'none';base-uri 'self';script-src 'nonce-q7i12PJVgSJCv3xI9f03-g' 'strict-dynamic' 'report-sample' 'unsafe-eval' 'unsafe-inline' https: http:;report-uri https://csp.withgoogle.com/csp/gws/other-hp
date: Thu, 13 Apr 2023 14:29:03 GMT
expires: Sat, 13 May 2023 14:29:03 GMT
cache-control: public, max-age=2592000
server: gws
content-length: 220
x-xss-protection: 0
x-frame-options: SAMEORIGIN
unify@unify-dev-environment:~/projects$ curl -I https://getcomposer.org
HTTP/2 200
server: nginx
content-type: text/html; charset=UTF-8
vary: Accept-Encoding
cache-control: no-cache, private
date: Thu, 13 Apr 2023 14:29:13 GMT
strict-transport-security: max-age=31104000
But In the docker container, we can connect to https://google.com but not the https://getcomposer.org
unify@4ee46c2dc75d:/var/www$ curl -I https://google.com
HTTP/2 301
location: https://www.google.com/
content-type: text/html; charset=UTF-8
content-security-policy-report-only: object-src 'none';base-uri 'self';script-src 'nonce-6drQIj5wPyqYh0Va-OCyXA' 'strict-dynamic' 'report-sample' 'unsafe-eval' 'unsafe-inline' https: http:;report-uri https://csp.withgoogle.com/csp/gws/other-hp
date: Thu, 13 Apr 2023 14:28:35 GMT
expires: Sat, 13 May 2023 14:28:35 GMT
cache-control: public, max-age=2592000
server: gws
content-length: 220
x-xss-protection: 0
x-frame-options: SAMEORIGIN
unify@4ee46c2dc75d:/var/www$ curl -I https://getcomposer.org
curl: (35) Unknown SSL protocol error in connection to getcomposer.org:443
unify@4ee46c2dc75d:/var/www$
Note: 0-65*** ports are open for the GCE VM
Container Dockerfile
FROM php:5.6-apache
# Arguments defined in docker-compose.yml
ARG user
ARG uid
# Php/apache configs
COPY ./php56/apache2/sites-available/* /etc/apache2/sites-available/
COPY ./php56/php/conf.d/* /usr/local/etc/php/conf.d/
RUN apt-get update && \
apt-get install -y \
nano git zip libmcrypt-dev zlib1g-dev libicu-dev g++
# Clear cache
RUN apt-get clean && rm -rf /var/lib/apt/lists/*
RUN docker-php-ext-install mbstring mcrypt intl pdo_mysql mysql mysqli
RUN docker-php-ext-configure intl
# Get latest Composer
COPY --from=composer:latest /usr/bin/composer /usr/bin/composer
# Create system user to run Composer and Artisan Commands
RUN useradd -G www-data,root -u $uid -d /home/$user $user
RUN mkdir -p /home/$user/.composer && \
chown -R $user:$user /home/$user
RUN a2enmod rewrite
RUN service apache2 restart
# Set working directory
WORKDIR /var/www
USER $user
Using the container I am trying to run a simple php application. I have found a docker documents regarding Configure Docker to use a proxy server but I am not sure if GCE VM uses any proxy server.
