dbs's Introduction

Architecture

infra: ovn sdn controller + docker network ovn driver(special)
files: files to mount into app container
topology: source.xml(export from draw.io) --front--> ir --back(docker-compose)--> (docker + ovn) instance

Initial

docker

curl -L get.docker.com | bash -s -- --mirror Aliyun
systemctl start docker
systemctl enable docker

yum install python3 python3-pip
pip3 install --upgrade pip
pip3 install docker-compose -i https://pypi.douban.com/simple
pip3 install -r topology/front/drawio_requirements.txt -i https://pypi.douban.com/simple

Run

run ovn

cd dbs/infra
docker-compose build
docker-compose pull
docker-compose up -d
docker logs infra_driver_1 #make sure driver is running

run exp instance

cd topology
cp xxx/somename.xml src/ # 
cd front
python3 drawio.py somename.xml # make sure this step generate ../ir/somename.app.yaml right
cd ../back
./app.sh somename up (down)

Attention

ovn network driver special behavior:
- gateway argument is default set to the last ip of the subnet (deceive docker)
- driver_opts com.ohmyadd.network.ovn.gateway is the real gateway ip (set in ovn)
- For The Purpose OF: Container be able to occupy the real gateway ip
drawio source
- open draw.io
- import ovn2_2 chart xml in topology/src
- modify it to what you want
  1. (ova -> open) arrow is the belong relation between container and netowrk
  2. (diamon -> diamond) arror is a simplify network within two containers
  3. process type is container
  4. rectangle type is network
- finally you can export the chart as xml
- do not export as compressed file
- do not use formatted text in any component in chart

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