Docker on Trizeps 8 Mini
- Albinleo Velappan (Deactivated)
- Anu Selvaraj (Deactivated)
Install Docker
Docker can be installed as described in the installation notes on docker.com.
Set up the repository
update apt package index and install prerequisites
sudo apt-get updatesudo apt-get install \
apt-transport-https \
ca-certificates \
curl \
gnupg-agent \
software-properties-commonAdd Docker's official GPG key
curl -fsSL https://download.docker.com/linux/debian/gpg | sudo apt-key add -Add stable arm64 repository for debian10
sudo add-apt-repository \
"deb [arch=arm64] https://download.docker.com/linux/debian \
$(lsb_release -cs) \
stable"The docker daemon uses iptables for NAT while Debian uses nftables. Switching to iptables-legacy prevents dockerd from being unable to start
sudo update-alternatives --set iptables /usr/sbin/iptables-legacysudo update-alternatives --set ip6tables /usr/sbin/ip6tables-legacyInstall Docker engine
sudo apt-get updatesudo apt-get install docker-ce docker-ce-cli containerd.ioDone - installation can be verified by running the hello world docker container:
sudo docker run hello-worldGet Docker Compose
Docker Compose allows the user to easily configure more complex docker projects containing multiple images in multiple containers with dependencies and network links set up.
Unfortunately there is no prebuilt arm64 version of Docker Compose available. The easiest way to run Docker Compose anyway is to run it in a Docker container as described here.
The docker container can be used almost like a native installation of Docker Compose after running the following two commands:
sudo curl -L --fail https://raw.githubusercontent.com/linuxserver/docker-docker-compose/master/run.sh -o /usr/local/bin/docker-composesudo chmod +x /usr/local/bin/docker-composeWith this setup docker-compose.yml-files can simply be started with the docker-compose up -d command.
Docker Compose example
This is the contents of a working docker-compose.yml file that sets up a wordpress webserver that depends on a mariadb database.
version: '2'
services:
db:
image: mariadb
volumes:
- ./data/db/:/var/lib/mysql
restart: always
ports:
- "3306:3306"
environment:
MYSQL_ROOT_PASSWORD: wproot
MYSQL_DATABASE: wordpress
MYSQL_USER: wpuser
MYSQL_PASSWORD: wppass
wordpress:
depends_on:
- db
image: wordpress:latest
ports:
- "8080:80"
restart: always
environment:
WORDPRESS_DB_HOST: db:3306
WORDPRESS_DB_USER: wpuser
WORDPRESS_DB_PASSWORD: wppass
working_dir: /var/www/html
volumes:
- ./data/wordpress:/var/www/html/wp-contentCreate the docker-compose.yml-file and start the containers:
sudo docker-compose upAfter starting the containers a WordPress website will be available at http://localhost:8080.
Portainer
Portainer simplifies finding and deleting unused images, containers, networks and volumes. It also provides a simple GUI to monitor and control docker containers, images, networks and volumes. It is also possible to set up new containers using portainer, although docker-compose is more popular and probably more versatile for that purpose.
Run Portainer in Docker:
docker volume create portainer_datadocker run -d -p 9000:9000 -p 8000:8000 --name portainer --restart always -v /var/run/docker.sock:/var/run/docker.sock -v portainer_data:/data portainer/portainerAlternatively a docker-compose file can be used to deploy portainer:
version: '2'
services:
portainer:
image: portainer/portainer
command: -H unix:///var/run/docker.sock
restart: always
ports:
- 9000:9000
- 8000:8000
volumes:
- /var/run/docker.sock:/var/run/docker.sock
- portainer_data:/data
volumes:
portainer_data:The portainer UI will be available at http://localhost:9000.