Hi Guys,
This is a general question: I have the following setup:
- 2 Droplets (one for production and the other for development)
- Nginx (for reverse proxy ~ I have to subdomains api-dev and api that redirects to the respectively droplet)
- Node.js Application (running as a daemon with pm2)
- MongoDB
Right now the application is working as expected (Node.js and MongoDB on the same droplets), when I need to deploy a new change to production, basically i do the following steps:
- Move to the application directory
- git pull the changes (from master)
- pm2 restart api (restart daemon)
Right now is very simple the process, I want to learn better ways (practices) to do it. So, I have a few question:
I have read a little about docker (but still don’t get it): How can I benefit from docker? Should I have an image for Node.js and another for MongoDB? (or just one with Node.js app and MongoDB installation)? Right now, If I add another droplet I need to modify the nginx, is there a way to automated? How can integrate the load balancer with nginx? Is it better to have the MongoDB in a separate droplet? (why or why not?)
*Please share any best practice about Deployments
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“Is it better to have the MongoDB in a separate droplet? (why or why not?)”
Technically it should be in another droplet, or another third party instance, for separation of concerns.
“How can I benefit from docker?”
You can only benefit from Docker if you’re moving containers around without having to install OS level dependencies all over again in other instances like A*S.
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