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| title | description | slug | authors | tags | image | hide_table_of_contents | |||
|---|---|---|---|---|---|---|---|---|---|
| How we decreased account creation by 16x | Here are the tips how to drastically decrease bash script execution time | how-we-decreased-bash-script-execution-by-10x-for-openpanel | stefanpejcic |
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https://openpanel.co/img/blog/openapnel_enterprise.png | true |
How we decreased Docker account creation time for OpenPanel from an average of 40s to less than 3 seconds
OpenPanel started as a LAMP stack that we built to fulfill our personal needs with a custom and reliable panel offering the freedom of VPS but with all the benefits of shared hosting: a low price tag and easy maintenance.
The very first script we developed for OpenPanel is the opencli user-add script, responsible for account creation, service setup, and file management.
Initial Challenges
The script's original execution involved numerous steps, including:
- Username validation
- Password security checks
- Plan verification
- Docker image and configuration checks
- Container creation
- Firewall and permission setup
- Configuration file creation
- Database user addition
These processes required meticulous checks and conditional statements to ensure seamless execution.
Optimization Strategies
1. Simplified Argument Parsing
We streamlined the argument parsing process by directly checking for the --debug flag, eliminating unnecessary iterations through arguments.
2. Enhanced Username Validation
Utilizing arrays and optimizing validation processes, we improved efficiency in checking username validity.
3. Reused Common Operations
By sourcing a separate bash script for common operations, we minimized redundancy across scripts, enhancing maintainability.
4. Efficient Database Data Retrieval
Optimizing database data retrieval using read and reducing reliance on multiple echo commands streamlined the process.
5. Consolidated Conditions
Merging conditions optimized processing time and reduced redundancy, enhancing script efficiency.
6. Skipped Unnecessary Checks
We avoided redundant checks such as username length and Docker image existence, focusing on essential operations.
7. Optimized Docker Container Setup
Selective service startup in Docker containers based on user requirements reduced initialization time and resource usage.
8. Utilized Skeleton Files
Introduction of skeleton files for common user data minimized read/write operations during account creation, improving efficiency.
9. Minimized Operations
Reducing firewall port operations by checking for IPv6 address existence and avoiding unnecessary port openings optimized resource utilization.
10. Implemented Background Processing
Running post-account creation processes such as PHP version retrieval in the background optimized overall execution time.
Achievements
Through these optimizations, we achieved a significant reduction in Docker account creation time for OpenPanel, from an average of 40 seconds to less than 3 seconds. These enhancements not only improved user experience but also optimized resource utilization, marking a milestone in our journey of script optimization and efficiency improvement.