Configuration management is a process for maintaining the configuration of systems throughout their lifecycle.
Automated control of:
- Deployed artifacts
- Configuration files
- System packages
Configuration stored in code
- Manual configuration
- Writing bash scripts
- Fixes directly on production servers
- All servers are different
- Difficult to reproduce the configuration of even one server
- No changes control
- Most often, all information is kept by one person
- Description in one place
- Infrastructure as a code
- Automated configuration scripts produce the exact same result every time.
- Configuration changes occur “in place”.
- Only if a resource does not match requirements is it changed.
- There is no fear of breaking existing resources.