This gem allows ...
cat simple_stack.drs | dry-stack -e to_compose | docker stack deploy -c - simple_stack
$ dry-stack
Version: 0.1.13
Usage:
dry-stack -s stackfile [options] COMMAND
cat stackfile | dry-stack COMMAND
dry-stack COMMAND < stack.drs
Commands:
to_compose - Print stack in docker compose format
[... to_compose <deploy name>]
swarm_deploy - Call docker stack deploy & add config readme w/ description
[... swarm_deploy -- --prune --resolve-image changed]
Options:
-s, --stack STACK_NAME Stack file
-e, --env Load .env file
--name STACK_NAME
Define stack name
--ingress
Generate ingress labels
--traefik
Generate traefik labels
--traefik-tls
Generate traefik tls labels
--tls-domain domain
Domain for the traefik labels
--host-sed /from/to/
Sed ingress host /\*/dev.*/
-n, --no-env Deprecated
-c, --configuration name Configuration name
-x, --context-endpoint host Docker context host. Created if not exists
-h, --help
https://rdoc.info/gems/dry-stack https://rubydoc.info/gems/dry-stack https://gemdocs.org/gems/dry-stack/
To install the gem
$ gem install dry-stack
Create the file stack.drs which describes the stack
Description <<~DSC
Stack description
DSC
Labels 'stack.product': 'product A'
PublishPorts admin: 5000
Ingress admin: { host: 'admin.*' }
Deploy admin: { replica: 2, 'resources.limits': { cpus: '4', memory: '500M' } }
Service :admin, image: 'frontend', env: {APP: 'admin'}, ports: 5000
Service :backend, image: 'backend', ports: 3000 do
env APP_PORT: 3000, NODE_ENV: 'development', SKIP_GZ: true, DB_URL: '$DB_URL'
volume 'database:/var/lib/postgresql/data'
end
Volume :database, driver: 'zfs', name: 'tank/volume1', driver_opts: { compression: 'lz4', dedup: 'on' }
Then run in the current directory
$ dry-stack stack.drs -n --traefik to_compose
This will ...
version: '3.8'
services:
admin:
environment:
APP: admin
STACK_NAME: stack
STACK_SERVICE_NAME: admin
deploy:
labels:
- stack.product=product A
- traefik.enable=true
- traefik.http.routers.stack_admin-0.service=stack_admin-0
- traefik.http.services.stack_admin-0.loadbalancer.server.port=5000
- traefik.http.routers.stack_admin-0.rule=HostRegexp(`{name:admin\..*}`)
replica: 2
resources:
limits:
cpus: '4'
memory: 500M
networks:
default:
ingress_routing:
image: frontend
ports:
- 5000:5000
backend:
environment:
APP_PORT: 3000
NODE_ENV: development
SKIP_GZ: 'true'
DB_URL: "$DB_URL"
STACK_NAME: stack
STACK_SERVICE_NAME: backend
deploy:
labels:
- stack.product=product A
image: backend
volumes:
- database:/var/lib/postgresql/data
volumes:
database:
driver: zfs
name: tank/volume1
driver_opts:
compression: lz4
dedup: 'on'
networks:
ingress_routing:
external: true
name: ingress-routing
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