Creating a data service within Docker

Intermediate Docker

Mike Metzger

Data Engineering Consultant

Data sharing

docker run -v <host directory>:<container directory>
- -v ~/hostdata:/containerdata

Data sharing in compose.yaml

Also present in compose.yaml files

services:
  resource:
    name: resource1

    # Section named volumes
    volumes:

      - <host directory>:<container directory>
      # Such as:
      - ~/hostdata:/containerdata

Networks

docker run --network <networkname>
- docker run --network net1
In compose.yaml resources

services:
  resource:
    name: resource1

    networks:

      network_name:
      # Such as:
      net1:

Port mapping

docker run -p hostport:containerport
- -p 8000:8000
Available in compose.yaml resources

services:
  resource:
    name: resource1

    ports:

      - hostport:containerport
      # Such as:
      - 8000:8000

docker inspect

Determine information about provisioned containers
- docker inspect <id / name>
Provides various levels of information
- Mounts: Provides mounted data information
- NetworkSettings: Network information
  - NetworkSettings:Networks: Shows the Docker network(s) connection details

    "Config": {
       "Mounts": [...]
       ...
       "Networks": {
                "network1": {
        ...

Data service

Data Service - Server.png

Data service

Data Service - Client.png

Data service

Data Service - Full.png

Let's practice!

Intermediate Docker