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Containers

Arguments

Argument	Default	Description
image	[Required]	Docker image to run
service		The name of the service (e.g systemd unit name or deployment name)
env		A map of environment variables to pass through
labels		A map of labels to add to the container
docker_args		Additional arguments to the docker client e.g. `-p 8080:8080` (only)
docker_opts		Additional options to the docker client e.g. `-H unix:///tmp/var/run/docker.sock` ( only)
args		Additional arguments to the container
volumes		List of volume mappings
ports		List of port mappings
commands		List of commands to execute inside the container on startup ( only)
files		Map of files to mount into the container ( only)
templates		Map of templates to mount into the container (only)
network	user-bridge	only
cpu		CPU limit in cores (Defaults to 1 on )
mem		Memory Limit in MB. (Defaults to 1024 on )
replicas	1	Number of instances or containers to run
containers_force_sha	false	When specified the SHA digest for each container will be looked up at deploy time and inserted into the image url.

play.yml

 -  hosts: localhost
    roles:
      - deploy
    vars:
      containers:
      - image: nginx
        service: nginx
        env:
          DOMAIN: localhost.com
      - image: nginx
        service: nginx2
        ports:
        - 8080:80

Docker Compose

Docker compose can also be used as a source to deploy to any target. Only the attributes listed below are supported:

ports
environment
image
deploy/resources/limits
deploy/replicas
deploy/endpoint_mode (use dnsrr for a NodePort in k8s)
networks ( only)
ui.labels (See Load Balancing)

group_vars/group.yml

docker_compose_v3:
  - files/docker-compose.yml

files/docker-compose.yml

version: "3"
services:
 gateway:
   image: gateway:4.1.0-SNAPSHOT
   deploy:
     resources:
       limits:
         memory: 2G
   environment:
     - TZ=Africa/Harare
   ports:
     - "8166:8166"
   networks:
     - user
networks:
 user:
   external:
     name: public

Implemented as systemd services that controls container
Implemented as 1 ECS container per task per service using Weave overlay
Converted into a K8s Deployment and Service