RAM for a Docker Host Server
Docker running two Node.js apps, a database and Redis. That needs about 2.31 GB; a 4 GB plan leaves room to spare. Adjust it below.
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Operating System
Web Server
Choose a plan with
Estimated use 2.31 GB, plus 25% headroom
Where It Goes
Linux300 MB
Database1.29 GB
Redis343 MB
Node.js (2 processes)300 MB
Docker100 MB
VPS RAM Calculator
Memory for Docker Host
Linux300 MB
Database1.29 GB
Redis343 MB
Node.js (2 processes)300 MB
Docker100 MB
Plan to Choose4 GB
Docker running two Node.js apps, a database and Redis.
Figures are typical; check real use with free -h and htop after a week of normal traffic, and resize if the server swaps.
Questions
How much RAM does a docker host server need?
About 2.31 GB for the set-up described; choose 4 GB to leave headroom.
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