doc: Docker minor improvements

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ArthurHoaro 2020-09-03 11:58:09 +02:00 committed by nodiscc
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## Install Docker
Install [Docker](https://www.docker.com/), by following the instructions relevant to your OS / distribution, and start the service. For example on [Debian](https://docs.docker.com/engine/install/debian/):
Install [Docker](https://docs.docker.com/engine/install/), by following the instructions relevant to your OS / distribution, and start the service. For example on [Debian](https://docs.docker.com/engine/install/debian/):
```bash
# update your package lists
$ sudo apt update
sudo apt update
# remove old versions
$ sudo apt-get remove docker docker-engine docker.io containerd runc
sudo apt-get remove docker docker-engine docker.io containerd runc
# install requirements
$ sudo apt-get install apt-transport-https ca-certificates curl gnupg-agent software-properties-common
sudo apt-get install apt-transport-https ca-certificates curl gnupg-agent software-properties-common
# add docker's GPG signing key
curl -fsSL https://download.docker.com/linux/debian/gpg | sudo apt-key add -
# add the repository
$ sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/debian $(lsb_release -cs) stable"
sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/debian $(lsb_release -cs) stable"
# install docker engine
$ sudo apt-get update
$ sudo apt-get install docker-ce docker-ce-cli containerd.io
sudo apt-get update
sudo apt-get install docker-ce docker-ce-cli containerd.io
# Start and enable Docker service
sudo systemctl enable docker && sudo systemctl start docker
# verify that Docker is properly configured
root@stretch-shaarli-02:~$ docker run hello-world
sudo docker run hello-world
```
In order to run Docker commands as a non-root user, you must add the `docker` group to this user:
```bash
# Add docker group as secondary group
sudo usermod -aG docker your-user
# Reboot or logout
# Then verify that Docker is properly configured, as "your-user"
docker run hello-world
```
## Get and run a Shaarli image
Shaarli images are available on [DockerHub](https://hub.docker.com/r/shaarli/shaarli/):
Shaarli images are available on [DockerHub](https://hub.docker.com/r/shaarli/shaarli/) `shaarli/shaarli`:
- `latest`: latest branch
- `master`: master branch
- `latest`: latest branch (last release)
- `stable`: stable branch (last release in previous major version)
- `master`: master branch (development branch)
These images are built automatically on DockerHub and rely on:
@ -40,6 +52,8 @@ These images are built automatically on DockerHub and rely on:
Additional Dockerfiles are provided for the `arm32v7` platform, relying on [Linuxserver.io Alpine armhf images](https://hub.docker.com/r/lsiobase/alpine.armhf/). These images must be built using [`docker build`](https://docs.docker.com/engine/reference/commandline/build/) on an `arm32v7` machine or using an emulator such as [qemu](https://resin.io/blog/building-arm-containers-on-any-x86-machine-even-dockerhub/).
Here is an example of how to run Shaarli latest image using Docker:
```bash
# download the 'latest' image from dockerhub
docker pull shaarli/shaarli
@ -60,7 +74,7 @@ docker run --detach \
--rm \
--volume shaarli-data:/var/www/shaarli/data \
--volume shaarli-cache:/var/www/shaarli/cache \
shaarli/shaarli
shaarli/shaarli:latest
# verify that the container is running
docker ps | grep myshaarli
@ -74,23 +88,30 @@ docker ps -a | grep myshaarli # verify th container has been destroyed
```
After running `docker run` command, your Shaarli instance should be available on the host machine at [localhost:8000](http://localhost:8000). In order to access your instance through a reverse proxy, we recommend using our [Docker Compose](#docker-compose) build.
## Docker Compose
A [Compose file](https://docs.docker.com/compose/compose-file/) is a common format for defining and running multi-container Docker applications.
A `docker-compose.yml` file can be used to run a persistent/autostarted shaarli service using [Docker Compose](https://docs.docker.com/compose/) or in a [Docker stack](https://docs.docker.com/engine/reference/commandline/stack_deploy/).
Shaarli provides configuration file for Docker Compose, that will setup a Shaarli instance, a [Træfik](https://hub.docker.com/_/traefik/) instance with [Let's Encrypt](https://letsencrypt.org/) certificates, a Docker network, and volumes for Shaarli data and Træfik TLS configuration and certificates.
Shaarli provides configuration file for Docker Compose, that will setup a Shaarli instance, a [Træfik](https://containo.us/traefik/) instance (reverse proxy) with [Let's Encrypt](https://letsencrypt.org/) certificates, a Docker network, and volumes for Shaarli data and Træfik TLS configuration and certificates.
Download docker-compose from the [release page](https://docs.docker.com/compose/install/):
```bash
$ sudo curl -L "https://github.com/docker/compose/releases/download/1.26.2/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
$ sudo chmod +x /usr/local/bin/docker-compose
```
To run Shaarli container and its reverse proxy, you can execute the following commands:
```bash
# create a new directory to store the configuration:
$ mkdir shaarli && cd shaarli
# Download the current version of Shaarli's docker-compose.yml
$ curl -L https://raw.githubusercontent.com/shaarli/Shaarli/master/docker-compose.yml -o docker-compose.yml
# Download the latest version of Shaarli's docker-compose.yml
$ curl -L https://raw.githubusercontent.com/shaarli/Shaarli/latest/docker-compose.yml -o docker-compose.yml
# Create the .env file and fill in your VPS and domain information
# (replace <MY_SHAARLI_DOMAIN> and <MY_CONTACT_EMAIL> with your actual information)
$ echo 'SHAARLI_VIRTUAL_HOST=shaarli.mydomain.org' > .env
@ -101,9 +122,9 @@ $ docker-compose pull
$ docker-compose up -d
```
After a few seconds, you should be able to access your Shaarli instance at [https://shaarli.mydomain.org](https://shaarli.mydomain.org) (replace your own domain name).
### Running dockerized Shaarli as a systemd service
## Running dockerized Shaarli as a systemd service
It is possible to start a dockerized Shaarli instance as a systemd service (systemd is the service management tool on several distributions). After installing Docker, use the following steps to run your shaarli container Shaarli to run on system start.
@ -154,9 +175,9 @@ journalctl -f
```bash
# pull/update an image
$ docker pull shaarli:release
$ docker pull shaarli/shaarli:release
# run a container from an image
$ docker run shaarli:latest
$ docker run shaarli/shaarli:latest
# list available images
$ docker images ls
# list running containers