Dockerfile in Symfony project? - php

I have a symfony 3 project that I'm running using the following command:
php bin/console server:run
However I have built a docker image of it, that uses the following Dockerfile:
FROM php:7.0-fpm
WORKDIR /
ADD . /
EXPOSE 8000
ENTRYPOINT php bin/console server:run
With entrypoint I was aiming to have the project actually run when I run the docker container. However whilst I get the correct message saying:
[OK] Server listening on http://127.0.0.1:8000
The project is actually not available. Could someone please show me where I'm going wrong!

Related

LARAVEL SAIL: OCI runtime exec failed: exec failed: unable to start container process: exec: "composer": executable file not found in $PATH: unknown

I am quite new to Laravel even though I have already created several mini projects.
Today I tried to create a new Laravel project with Sail in the way that the documentation indicates
curl -s https://laravel.build/blade-components | bash
The application is created correctly, I raise the container with ./vendor/bin/sail up, I compile the styles with sail npm run dev, I run the migrations and everything is correct in the browser (localhost).
The problem comes when trying to install JetStream with the composer command
sail composer require laravel/jetstream
The error is:
OCI runtime exec failed: exec failed: unable to start container
process: exec: "composer": executable file not found in $PATH: unknown
For some reason, it's like composer doesn't get installed to the project.
When I run sail, or sail npm (for example), it recognizes the commands and shows me the different actions available. I tried to run the composer command from sail's attach shell and it doesn't recognize it.
Executing task: docker exec -it 7b2cd6402559708130d9fdf7b8f8e8cbcd9ed47d524a77dd10cf2ee0068b5150 bash
root#7b2cd6402559:/var/www/html# composer
bash: composer: command not found
Then I opened previous Laravel projects to test if the sail composer command worked and the same thing happens (it didn't before), so it's not a project-specific thing.
I would greatly appreciate your help! P.S.: sorry for my English, greetings from Argentina!
I encountered the same problem.
My operating system is Windows11 and I created the laravel project in WSL
.
I found that if I service docker start in WSL, sail up -d will create or start containers in WSL and sail composer will show the same error.
But if I do not service docker start in WSL, sail up -d will create or start containers in Windows11 and everything is fine.
p.s. Sorry for my English, too.

How to setup and run laravel, from git?

Either I miss something, or the whole chain lacks something.
Here's my assumption:
The whole point of containerization in development, is to reduce the cost of environment setup, and create a prepared image with all the required pieces.
So, when I read that Laravel Sail is installing laravel via containerization, I get excited. Thus I install it via their instructions, and everything works.
Then the problem begins. Because:
After a successful installation, I create a git repo, with GitHub's default laravel .gitignore
Then I push the newly installed laravel app into my git repo.
Then I ask a developer to start developing it. Please note that:
He does not have PHP installed
He does not have Composer installed
He clonse the repo, and as per installation guide, runs ./vendor/bin/sail up
But ./vender folder is correctly excluded in .gitignore
Thus his command results in:
bash: ./vendor/bin/sail: No such file or directory
He Googles it of course, and finds out that people suggest to run composer update
He goes to install composer, then before that PHP, then all extensoins of PHP, then ...
Do I miss something here? The whole point of containerization was to not install the required environment locally.
What is the proper way of running a laravel app, that is not installed from https://laravel.build, but is cloned from a git repo, WITHOUT having PHP or Composer installed locally?
Update
I found Bitnami laravel docker and it's exactly what containers should be.
You are right and the other developer doesn't need to have php nor composer installed.
All he/she needs is Docker installed on the local machine.
If you scaffolded the project with what is mentioned in the official Laravel docs under the Getting started section, then you will have a docker-compose.yml file in your project root directory.
For Windows
For Linux
For Mac OS
All the developer has to do after git cloning the repository is to run
docker-compose up --build -d
That's it.
For those struggling with this issue... I've found a command that work perfectly fine.
First of all, you don't need to locally have any PHP or Composer installed, maybe there is a misunderstanding about it, all you need is Docker.
Docker will install everything you need in something I understand is like a sandbox, not locally, for each project.
And for those downloaded projects, from GIT as example, that does not have vendor folder, and obviously cannot execute sail up you can simple execute:
docker run --rm --interactive --tty -v $(pwd):/app composer install
That command will download a composer image for docker, if you do not have one yet. Then, will run a composer install and you are free to execute a ./vendor/bin/sail up if you hadn't configured an alias or just sail up if you already configure an alias.
That's all.
The official documentation lists the following command.
docker run --rm \
-u "$(id -u):$(id -g)" \
-v $(pwd):/var/www/html \
-w /var/www/html \
laravelsail/php81-composer:latest \
composer install --ignore-platform-reqs
If you were to clone a Laravel project and run this command in the project root, it would create a very small container with php and composer installed and run composer in the project root to install all php dependencies. In effect, this installs the Laravel core code into the cloned project. Once the project in set up this way, the user should create a local .env file to match their development evironment.
cp .env.example .env # creates a .env file to be populated for the local environment
With the envronment set up, they can now create the application containers in docker and run the application. Laravel provides the Sail helper for this.
./vendor/bin/sail up -d # runs the docker containers in detached mode
Now it's a matter of setting up the laravel app and running the Laravel app. (I'm assuming the app uses one of the Laravel start kits that rely on Node.js. If you are using a Blade only application, you can skip the "npm" commands.)
sail artisan key:generate # (Best Practice) Generate a new application key on each machine
sail artisan migrate # Scaffold the database structure
sail artisan db:seed # (Optional) Seed the database with data
sail npm install # (Optional) Install front-end dependencies (Inertia, Vue, React, others...)
sail npm run dev # (Optional) Run the front-end framework in development mode
With this, the new developer should be running an exact copy of both the project and the development environment as the original developer.
Your project README may include additional steps to set up some other dependencies, but this is the basic workflow for contributing to a Laravel project.
The only prerequisites for this workflow is to have Docker installed with an Internet connection. This is most easily accomplished on Windows, Mac, and Linux by installing Docker Desktop.
Alternate for Older Projects
If you are working on an older project that doesn't use Laravel Sail, but does have a docker-compose.yml file, you should be able to build and run the necessary containers with the following command.
docker-compose up --build -d
Once you have the containers running, you would need to install the project dependencies directly into the container.
docker ps # find the container ID of your project's container
docker exec -it CONTAINER_ID php artisan key:generate
docker exec -it CONTAINER_ID php artisan migrate
docker exec -it CONTAINER_ID php artisan db:seed
docker exec -it CONTAINER_ID npm install
docker exec -it CONTAINER_ID npm run dev
Of course, Docker Desktop simplifies this process. With a button click you can have a terminal shell open directly in your container eliminating the need for the docker exec command.

Dockerizing a command line application

I have created a command line application using symfony 3.4 which doesn't need to display any web page.
I generally run the commands like following:
php bin/console MY_COMMAND_NAME
I want to dockerize the application and share it with others, so inside the root directory of my project I created a docker-compose.yml file, which looks like following:
version: "3.3"
services:
web:
image: php:7.3-cli
Then I ran docker-compose up, after that I checked the PHP version by the following command and it showed my the correct version:
docker run php:7.3-cli php -v
However, when I ran docker ps, it didn't show any container running.
My question is how to run the commands inside my project root directory. FYI, I am using Docker Toolbox, on windows 10 Home Edition and my project location is:
C:\Users\{my_user_name}\Desktop\folder_1\folder_2
The docker container need to have a long running process defined in CMD to stay running. php-cli is not that. If you run composer up, you'll see something like this:
$ docker-compose up
Creating network "tempphpdocker_default" with the default driver
Pulling web (php:7.3-cli)...
7.3-cli: Pulling from library/php
b8f262c62ec6: Pull complete
a98660e7def6: Pull complete
4d75689ceb37: Pull complete
639eb0368afa: Pull complete
2cdbfdb779b1: Pull complete
e0b637fa9606: Pull complete
da7333b0ef25: Pull complete
01d65ff46009: Pull complete
673e50bed3b9: Pull complete
bf6c6e34305d: Pull complete
Digest: sha256:1453f5ef0d4d1d424ed8114dd90a775bdec06cc6fb3bbae9521dcb4ca0c8ca90
Status: Downloaded newer image for php:7.3-cli
Creating tempphpdocker_web_1 ...
Creating tempphpdocker_web_1 ... done
Attaching to tempphpdocker_web_1
web_1 | Interactive shell
web_1 |
tempphpdocker_web_1 exited with code 0
The exit code is 0. This means your command in the docker image php:7.3-cli has successfully run and finished.
To properly dockerize your applicaiton, you should override this by writing you own docker file with proper COPY calls that bundle your CLI program into it. Your Dockerfile should probably look something like this:
FROM php:7.3-cli
RUN mkdir -p /opt/workdir/bin
RUN mkdir -p /opt/workdir/vendor
COPY bin/ /opt/workdir/bin
COPY vendor/ /opt/workdir/vendor
WORKDIR /opt/workdir
CMD php ./bin/console COMMAND
You can simply build and run this Dockerfile, or you if you prefer docker-compose, you can define docker-compose.yml in the same folder as the Dockerfile:
version: "3.3"
services:
web:
image: php-custom
build: ./
Please noted that a dockerized application can only access files and folder in the docker image. You should bind volumes of your local file system to the container before it can actually work on your filesystem.
Quick and dirty fix to keep you container running just override the container command in docker-compose.
version: "3.3"
services:
web:
image: php:7.3-cli
command: tail -f /dev/null
when you run docker-compose up it will keep the docker container but it will do not thing, just will give away to run command inside container.
docker exec -it php-cli_web_1 ash
My question is how to run the commands inside my project root
directory.
As mentioned by #David, you need to mount your host project to the container in docker-compose.
For instance
your project is placed on the host /home/myporject, mount the project within docker-compose and it will be available inside the container. then you can update the command of your docker-compose to run the script.
keep in mind
The life of container is the life of docker-compose command
When the execution completed your container will be die after execution. so your container will run until the php:7.3-cli /app/your_script.php this script completed.
version: "3.3"
services:
web:
image: php:7.3-cli
command: php:7.3-cli /app/your_script.php
volumes:
- /home/myporject:/app

docker-compose using old volumes

I am trying to set up a CI pipeline with docker-compose and am struggling to understand how named volumes work...
As part of my Dockerfile, I copy in the application files and then run composer install to install the application dependencies. There are some elements of the applicaton files and the dependencies that I want to share with the other containers that are running / are set up to be run to perform utility processes (such as running database migrations). See the example below:
Dockerfile:
FROM php:5.6-apache
# Install dependencies
COPY composer.* /app/
RUN composer install --no-dev
# Copy application files
COPY bin bin
COPY environment.json environment.json
VOLUME /app
docker-compose.yml
web:
build:
context: .
dockerfile: docker/web/Dockerfile
volumes:
- app:/app
- ~/.cache/composer:/composer/cache
migrations:
image: my-image
depends_on:
- web
environment:
- DB_DRIVER=pdo_mysql
- AUTOLOADER=../../../vendor/autoload.php
volumes:
- app:/app
working_dir: /app/vendor/me/my-lib
volumes:
app:
In the example above (irrelevant information omitted), I have a "migrations" service that pulls the migrations from the application dependencies installed with composer. My idea is that when I perform docker-compose build followed by docker-compose up, it will bring up the latest version of software with the latest dependencies and run the latest migrations at the same time.
This works fine the first time. Unfortunately on subsequent runs I cannot get docker-compose to use the new versions. If I run docker-compose build, I can see the composer install run and install all the latest libraries, but then when I go into the container with docker-compose run web /bin/bash, the old dependencies are in there! If I run the image directly with docker run web_1, I can see all the latest files no problem. So it's definitely a compose-specific problem.
I assume I need to do something like clear out the volume cache, but whatever I have tried doesn't seem to work. I can only assume I am misunderstanding the idea of volumes.
Any help would be hugely appreciated. Thanks!
What I understand from your question is you want to run composer install every time you run your container. In that case you have to use CMD instruction to execute that command.
CMD composer install --no-dev
RUN and CMD are both Dockerfile instructions.
RUN lets you execute commands inside of your Docker image. These commands get executed once at build time and get written into your Docker image as a new layer.
For example if you wanted to install a package or create a directory inside of your Docker image then RUN will be what you’ll want to use. For example, RUN mkdir -p /path/to/folder.
CMD lets you define a default command to run when your container starts.
You could say that CMD is a Docker run-time operation, meaning it’s not something that gets executed at build time. It happens when you run an image. A running image is called a container.
The problem here has to do with mounting a volume over a location defined in the build. The first build of the image has composer put its output into /app, and the first run of the first build mounts the app named volume to /app. This clobbers the image version of /app with a new write-layer on top. Mounting this named volume on the second build of the image will keep the original contents of /app.
Instead of using a named volume, use volumes-from to load the exported /app volume from web into the migration container.
version: '2'
services:
web:
build:
context: .
dockerfile: docker/web/Dockerfile
volumes:
- ~/.cache/composer:/composer/cache
migrations:
image: docker-registry.efficio.digital:5043/doctrine-migrator:1.1
depends_on:
- web
environment:
- DB_DRIVER=pdo_mysql
- AUTOLOADER=../../../vendor/autoload.php
volumes_from:
- web:ro

Project layout with vagrant, docker and git

So I recently discovered docker and vagrant, and I'm starting a new Php project in which I want to use both:
Vagrant in order to have a interchangeable environment that all the developers can use.
Docker for production, but also inside the vagrant machine so the development environment resembles the production one as closely as possible.
The first approach is to have all the definition files together with the source code in the same repository with this layout:
/docker
/machine1-web_server
/Dockerfile
/machine2-db_server
/Dockerfile
/machineX
/Dockerfile
/src
/app
/public
/vendors
/vagrant
/Vagrantfile
So the vagrant machine, on provision, runs all docker "machines" and sets databases and source code properly.
Is this a good approach? I'm still trying to figure out how this will work in terms of deployment to production.
Is this a good approach?
Yes, at least it works for me since a few months now.
The difference is that I also have a docker-compose.yml file.
In my Vagrantfile there is a 1st provisioning section that installs docker, pip and docker-compose:
config.vm.provision "shell", inline: <<-SCRIPT
if ! type docker >/dev/null; then
echo -e "\n\n========= installing docker..."
curl -sL https://get.docker.io/ | sh
echo -e "\n\n========= installing docker bash completion..."
curl -sL https://raw.githubusercontent.com/dotcloud/docker/master/contrib/completion/bash/docker > /etc/bash_completion.d/docker
adduser vagrant docker
fi
if ! type pip >/dev/null; then
echo -e "\n\n========= installing pip..."
curl -sk https://bootstrap.pypa.io/get-pip.py | python
fi
if ! type docker-compose >/dev/null; then
echo -e "\n\n========= installing docker-compose..."
pip install -U docker-compose
echo -e "\n\n========= installing docker-compose command completion..."
curl -sL https://raw.githubusercontent.com/docker/compose/$(docker-compose --version | awk 'NR==1{print $NF}')/contrib/completion/bash/docker-compose > /etc/bash_completion.d/docker-compose
fi
SCRIPT
and finally a provisioning section that fires docker-compose:
config.vm.provision "shell", inline: <<-SCRIPT
cd /vagrant
docker-compose up -d
SCRIPT
There are other ways to build and start docker containers from vagrant, but using docker-compose allows me to externalize any docker specificities out of my Vagrantfile. As a result this Vagrantfile can be reused for other projects without changes ; you would just have to provide a different docker-compose.yml file.
An other thing I do differently is to put the Vagrantfile at the root of your project (and not in a vagrant directory) as it is a place humans and tools (some IDE) expect to find it. PyCharm does, PhpStorm probably does.
I also put my docker-compose.yml file at the root of my projects.
In the end, for developing I just go to my project directory and fire up vagrant which tells docker-compose to (eventually build then) run the docker containers.
I'm still trying to figure out how this will work in terms of deployment to production.
For deploying to production, a common practice is to provide your docker images to the ops team by publishing them on a private docker registry. You can either host such a registry on your own infrastructure or use online services that provides them such as Docker Hub.
Also provide the ops team a docker-compose.yml file that will define how to run the containers and link them. Note that this file should not make use of the build: instruction but rely instead on the image: instruction. Who wants to build/compile stuff while deploying to production?
This Docker blog article can help figuring out how to use docker-compose and docker-swarm to deploy on a cluster.
I recommend to use docker for development too, in order to get full replication of dependencies. Docker Compose is the key tool.
You can use an strategy like this:
docker-compose.yml
db:
image: my_database_image
ports: ...
machinex:
image: my_machine_x_image
web:
build: .
volumes:
- '/path/to/my/php/code:/var/www'
In your Dockerfile you can specify the dependencies to run your PHP code.
Also, i recommend to keep my_database_image and my_machine_x_image projects separated with their Dockerfiles because perfectly can be used with another projects.
If you are using Mac, you are already using a VM called boot2docker
I hope this helps.

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