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  • System operation with Docker Containers / Docker Compose:

  • Docker Engine Version 20.10 or higher

  • Docker Compose Version 1.19 or higher

docker pull docker.stepover.de:8143/webso/frigg
docker pull docker.stepover.de:8143/webso/braga

#optional
docker pull mariadb:latest
docker pull

Environement variables and Volumes

config.ini

For frigg the config.ini must be mounted to /usr/local/tomcat/conf/config.ini

For braga the config.ini must be mounted to /opt/braga/config.ini

/path/to/config.ini:/usr/local/tomcat/conf/config.ini
/path/to/config.ini:/opt/braga/config.ini

braga storage

For braga additionally the data directory must be mounted. E.g.

/path/to/datadir:/mnt/braga_data

The data directory must be defined accordingly in the config.ini:

storage_home=/mnt/braga_data/

The volumes can either be mounted by using volumes in docker-compose or with the -v flag in docker run command (see below).

timezone

Set the timezone for frigg and braga:

TZ="EUROPE/BERLIN"

If no timezone is provided, UTC will be used. The timezone of the database must be the same as frigg and braga. The environment variable can either be set using environment in docker-compose or with the -e flag in docker run.

Docker run

When running the containers, the mounted volumes and environment variables must be set in the run command:

docker run

#frigg
docker run -p 8443:8443 --env TZ="EUROPE/BERLIN" --volume /path/to/config.ini:/usr/local/tomcat/conf/config.ini --name frigg docker.stepover.de:8143/webso/frigg

#braga
docker run -p 8080:8080 --env TZ="EUROPE/BERLIN" --volume /path/to/config.ini:/opt/braga/config.ini --volume /path/to/datadir:/mnt/braga_data --name braga docker.stepover.de:8143/webso/braga

braga can be referenced by its container ip or the server ip with port-forwarding. The container ip can be obtained with docker inspect:

docker inspect braga

The server port is the port of the container in the docker bridge network. The axis_server_ip must be set accordingly:

axis_server_ip=172.18.0.2
axis_server_port=8080

docker network

To make the services accessible wihtin by name, you need to create a docker network.

The network must be added to the run command with the --network parameter.

docker run with docker network:

 docker run with --network
#network
docker create webso-net

#frigg
docker run -p 8443:8443 --network webso-net --env TZ="EUROPE/BERLIN" --volume /path/to/config.ini:/usr/local/tomcat/conf/config.ini --name frigg docker.stepover.de:8143/webso/frigg

#braga
docker run -p 8080:8080 --network webso-net --env TZ="EUROPE/BERLIN" --volume /path/to/config.ini:/opt/braga/config.ini --volume /path/to/datadir:/mnt/braga_data --name braga docker.stepover.de:8143/webso/braga

braga can then be referenced by it’s container name and it’s container port.

config.ini with docker network:

 config.ini
axis_server_ip=braga
axis_server_port=8080

The referenced port is not the port exposed with the run command, but the port of the container. (8080 for braga).

mariaDB and rabbitMQ container

Additionally you can run mariaDB and/or rabbitMQ as containers. To reference them by their names, a docker network must be created (see above).

docker run with mariaDB and rabbitMQ:

 docker run with mariaDB and rabbitMQ
#network
docker create webso-net

#frigg
docker run -p 8443:8443 --network webso-net --env TZ="EUROPE/BERLIN" --volume /path/to/config.ini:/usr/local/tomcat/conf/config.ini --name frigg docker.stepover.de:8143/webso/frigg

#braga
docker run -p 8080:8080 --network webso-net --env TZ="EUROPE/BERLIN" --volume /path/to/config.ini:/opt/braga/config.ini --volume /path/to/datadir:/mnt/braga_data --name braga docker.stepover.de:8143/webso/braga

#mariadb
docker run -p 3306:3306 --network webso-net --volume /var/lib/mysql:/var/lib/mysql --name mariadb mariadb:latest

#rabbitmq
docker run -p 5672:5672 -p 15672:15672 --network webso-net --name rabbitmq rabbitmq:3-management

The services are now reachable with their name within the docker network and can be set in the config.ini accordingly.

config.ini with docker mariaDB and rabbitMQ

 config.ini
axis_server_ip=braga
axis_server_port=8080

dabase_host=mariadb
database_port=3306

rabbitmq_server=rabbitmq
rabbitmq_port=5672

host database

A database running on the host system can be accessed with host.docker.internal from a container.

It may be neccessary to add the host when running the container on linux

docker run --add-host=host.docker.internal:host-gateway

It’s not necessary to run the mariadb container. When using a docker network, --network needs to be added (see above).

docker run with host network

 docker run for host database

without docker network:

#frigg
docker run -p 8443:8443 --add-host=host.docker.internal:host-gateway --env TZ="EUROPE/BERLIN" --volume /path/to/config.ini:/usr/local/tomcat/conf/config.ini --name frigg docker.stepover.de:8143/webso/frigg

#braga
docker run -p 8080:8080 --add-host=host.docker.internal:host-gateway --env TZ="EUROPE/BERLIN" --volume /path/to/config.ini:/opt/braga/config.ini --volume /path/to/datadir:/mnt/braga_data --name braga docker.stepover.de:8143/webso/braga

with docker network:

#frigg
docker run -p 8443:8443 --add-host=host.docker.internal:host-gateway --network webso-net --env TZ="EUROPE/BERLIN" --volume /path/to/config.ini:/usr/local/tomcat/conf/config.ini --name frigg docker.stepover.de:8143/webso/frigg

#braga
docker run -p 8080:8080 --add-host=host.docker.internal:host-gateway --network webso-net --env TZ="EUROPE/BERLIN" --volume /path/to/config.ini:/opt/braga/config.ini --volume /path/to/datadir:/mnt/braga_data --name braga docker.stepover.de:8143/webso/braga

config.ini with database on host:

 config.ini
dabase_host=host.docker.internal
database_port=3306

Docker compose

Instead of using the docker run command, the services can be defined with docker-compose. The docker compose file creates a network webso-net and starts the services frigg and braga. The environment variables (see above) are set in the compose file.

docker-compose.yaml

services:
  frigg:
    image: "docker.stepover.de:8143/webso/frigg"
    container_name: frigg
    expose:
      - "8443"
    ports:
      - "8443:8443"
    networks:
      - "webso-net"
    volumes:
      - "/path/to/config.ini:/usr/local/tomcat/conf/config.ini"
    environment:
      - TZ=Europe/Berlin
  braga:
    image: "docker.stepover.de:8143/webso/braga"
    container_name: braga
    expose: 
      - "8080"
    ports:
      - "8080:8080"
    networks:
      - "webso-net"
    volumes:
      - "/path/to/conig.ini:/opt/braga/config.ini"
      - "/path/to/braga_data:/mnt/braga_data"
    environment:
      - TZ=Europe/Berlin
networks:
  webso-net:
    name: "webso-net"

Braga is referenced by it’s container name in config.ini. The braga storage_home is mounted as a volume and must be referenced in config.ini accordingly.

config.ini

axis_server_ip=braga
axis_server_port=8080
storage_home=/mnt/braga_data

database_host=<IP>
rabbit_mq_server=<IP>

mariaDB and rabbitMQ container (docker-compose)

Instead of referencing the database and rabbitMQ by their IP, you can run them containerized and reference them by their container_name. The services must be added to the docker-compose.yaml file. mariaDB is running on it’s default port 3306 and the data is mounted from the host system.

 docker-compose.yaml with frigg, braga, mariadb and rabbitMQ
services:
  frigg:
    image: "docker.stepover.de:8143/webso/frigg"
    container_name: frigg
    expose:
      - "8443"
    ports:
      - "8443:8443"
    networks:
      - "webso-net"
    volumes:
      - "/path/to/config.ini:/usr/local/tomcat/conf/config.ini"
    environment:
      - TZ=Europe/Berlin
  braga:
    image: "docker.stepover.de:8143/webso/braga"
    container_name: braga
    expose: 
      - "8080"
    ports:
      - "8080:8080"
    networks:
      - "webso-net"
    volumes:
      - "/path/to/config.ini:/opt/braga/config.ini"
      - "/path/to/braga_data:/mnt/braga_data"
    environment:
      - TZ=Europe/Berlin
  mariadb:
    image: "mariadb"
    container_name: mariadb
    environment:
      - MYSQL_ROOT_PASSWORD=secret_pw
      - MYSQL_DATABASE=frigg
    expose:
      - "3306"
    ports:
      - "3306:3306"
    networks:
      - "webso-net"
    volumes:
      - "path/to/mariadb_data:/var/lib/mysql"
  rabbitmq:
    image: "rabbitmq:3-management" 
    container_name: rabbitmq
    expose:
      - "15672"
      - "5672"
    ports:
      - "15672:15672"
      - "5672:5672"
    networks:
      - "webso-net"
networks:
  webso-net:
    name: "webso-net"
 config.ini frigg, braga, mariaDB, rabbitMQ container
axis_server_ip=braga
axis_server_port=8080
storage_home=/mnt/braga_data

database_host=mariadb
database_port=3306
rabbitmq_server=rabbitmq
rabbitmq_port=5672

host database (docker-compose)

To use a database running on a host system instead of a container, “host.docker.internal” must be added to extra_hosts. The mariadb service definition is not neccessary. The database host in config.ini must be set to host.docker.internal.

 docker-compose.yaml for frigg and braga with extra_hosts
services:
  frigg:
    image: "docker.stepover.de:8143/webso/frigg:"
    container_name: frigg
    expose:
      - "8443"
    ports:
      - "8443:8443"
    networks:
      - "webso-net"
    volumes:
      - "/path/to/config.ini:/usr/local/tomcat/conf/config.ini"
    environment:
      - TZ=Europe/Berlin
    extra_hosts:
      - "host.docker.internal:host-gateway"
  braga:
    image: "docker.stepover.de:8143/webso/braga:"
    container_name: braga
    expose: 
      - "8080"
    ports:
      - "8080:8080"
    networks:
      - "webso-net"
    volumes:
      - "/path/to/config.ini:/opt/braga/config.ini"
      - "/path/to/braga_data:/mnt/braga_data"
    environment:
      - TZ=Europe/Berlin
    extra_hosts:
      - "host.docker.internal:host-gateway"
networks:
  webso-net:
    name: "webso-net"
 config.ini with host-database
dabase_host=host.docker.internal
database_port=3306
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