Keep your dependencies in check

If Log4Shell, Spring4Shell, etc. have taught us anything, it’s that we need to keep our dependencies up to date. But updating our applications can take a lot of time. How do we stay on top of that, while also continuing to deliver business value?

Luckily, there are plenty of tools that can help us with this, from package managers to bots that can automatically create changes on our repositories. Let’s go over some of the different options, so we can make informed choices about what’s best for us in a particular situation.

Transcript

1. Keep your dependencies in check
   GeeCon Prague - October 24th, 2022
   https://maritvandijk.com/ @MaritvanDijk77
   

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2. @MaritvanDijk77
   

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3. @MaritvanDijk77
   

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4. @MaritvanDijk77
   

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5. @MaritvanDijk77
   

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6. Dec. 2021
   @MaritvanDijk77
   

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7. @MaritvanDijk77
   

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8. @MaritvanDijk77
   

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9. @MaritvanDijk77
   

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10. March 2022
    @MaritvanDijk77
    

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11. @MaritvanDijk77
    

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12. @MaritvanDijk77
    

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13. @MaritvanDijk77
    

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14. @MaritvanDijk77
    

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15. @MaritvanDijk77
    Do we
    
    
    need
    
    
    this
    dependency?
    

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16. Selecting dependencies
    @MaritvanDijk77
    

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17. Selecting dependencies
    @MaritvanDijk77
    

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18. @MaritvanDijk77
    https://xkcd.com/2347/
    

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19. @MaritvanDijk77
    

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20. Selecting dependencies
    @MaritvanDijk77
    

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21. Selecting dependencies
    @MaritvanDijk77
    

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22. Selecting dependencies @MaritvanDijk77
    

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23. Selecting dependencies
    @MaritvanDijk77
    

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24. @MaritvanDijk77
    Find information
    

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25. Dependency information
    @MaritvanDijk77
    https://mvnrepository.com/
    

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26. Dependency information
    @MaritvanDijk77
    https://mvnrepository.com/
    

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27. Dependency information
    @MaritvanDijk77
    https://github.com/
    

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28. Dependency information
    @MaritvanDijk77
    https://github.com/
    

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29. Dependency information
    @MaritvanDijk77
    https://package-search.jetbrains.com/
    

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30. Dependency information
    @MaritvanDijk77
    https://package-search.jetbrains.com/
    

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31. Dependency information
    @MaritvanDijk77
    https://package-search.jetbrains.com/
    

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32. No dependencies
    @MaritvanDijk77
    Maintain dependencies
    

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33. Maven
    • Overview of dependencies: `mvn dependency:tree`
    @MaritvanDijk77
    

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34. Maven
    • Check for updates: `mvn versions:display-dependency-updates`
    @MaritvanDijk77
    

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35. Maven
    • Analyse dependencies: `mvn dependency:analyze`
    @MaritvanDijk77
    

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36. Gradle
    • Overview of dependencies: `./gradlew dependencies`
    @MaritvanDijk77
    

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37. Gradle
    • Add plugin, e.g. gradle-versions-plugin
    
    
    • Run `./gradlew dependencyUpdates`
    @MaritvanDijk77
    

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38. IntelliJ IDEA
    • Alt + Enter
    @MaritvanDijk77
    

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39. IntelliJ IDEA
    • Alt + Enter
    @MaritvanDijk77
    

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40. IntelliJ IDEA
    • Package search: Dependencies tab
    @MaritvanDijk77
    https://www.jetbrains.com/help/idea/package-search.html
    

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41. IntelliJ IDEA
    • Package search: Dependencies tab
    @MaritvanDijk77
    https://www.jetbrains.com/help/idea/package-search.html
    

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42. IntelliJ IDEA: Ultimate Edition
    @MaritvanDijk77
    • Package checker
    

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43. Downsides
    - Check out each individual project
    
    
    - Apply & verify updates
    @MaritvanDijk77
    

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44. Software Composition Analysis (SCA)
    • Scan all repos (and containers)
    
    
    • Overview
    @MaritvanDijk77
    

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45. SCA: Pros & Cons
    + No need to check out repos individually
    
    
    - I have to check the dashboard
    @MaritvanDijk77
    

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46. @MaritvanDijk77
    Bots
    • Dependabot
    
    
    • Renovate
    
    
    • Snyk Open Source
    

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47. Dependabot
    • GitHub native
    
    
    • Includes:
    
    
    • Dependabot alerts
    
    
    • Dependabot security updates
    
    
    • Dependabot version updates
    @MaritvanDijk77
    

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48. Dependabot enable
    @MaritvanDijk77
    

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49. Dependabot alerts
    @MaritvanDijk77
    

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50. Dependabot security updates
    @MaritvanDijk77
    

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51. Dependabot version updates
    • Add dependabot.yml (impacts security updates)
    
    
    • Package manager & directory manifest file
    
    
    • Frequency (daily, weekly, or monthly)
    
    
    • Schedule (date, time, timezone)
    
    
    • Max. number of PR's (default 5)
    
    
    • Some details to manage PR's
    @MaritvanDijk77
    https://docs.github.com/en/code-security/dependabot/dependabot-version-updates/configuration-options-for-the-dependabot.yml-file
    

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52. Renovate
    • By Mend
    
    
    • Available via GitHub App
    @MaritvanDijk77
    

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53. Renovate enable
    @MaritvanDijk77
    https://github.com/apps/renovate
    

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54. Renovate enable
    @MaritvanDijk77
    

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55. Renovate enable
    @MaritvanDijk77
    

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56. Renovate configuration
    • All repos or selected repos
    
    
    • Config file is created for you
    
    
    • Max. number of PR's / concurrent branches
    
    
    • More options
    
    
    • More fine-grained
    @MaritvanDijk77
    https://docs.renovatebot.com/configuration-options/
    

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57. Renovate PR
    @MaritvanDijk77
    https://docs.renovatebot.com/merge-confidence/
    

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58. Renovate Dashboard
    @MaritvanDijk77
    

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59. Snyk
    • Products:
    
    
    • Snyk Open Source
    
    
    • Snyk Code
    
    
    • Snyk Container
    
    
    • Snyk Infrastructure as Code
    
    
    • Snyk Cloud
    @MaritvanDijk77
    https://snyk.io/
    

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60. Snyk enable
    @MaritvanDijk77
    https://snyk.io/
    

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61. Snyk enable
    @MaritvanDijk77
    

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62. Snyk enable
    @MaritvanDijk77
    

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63. Snyk enable
    @MaritvanDijk77
    

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64. Snyk PR
    @MaritvanDijk77
    

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65. Snyk PR
    @MaritvanDijk77
    

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66. Snyk PR Check
    @MaritvanDijk77
    

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67. Snyk dashboard
    @MaritvanDijk77
    

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68. Snyk dashboard
    @MaritvanDijk77
    

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69. Snyk Open Source Configuration
    • Frequency (daily, weekly, never)
    
    
    • Enable/disable: New and/or known vulnerabilities
    
    
    • Enable/disable PRs for single project
    @MaritvanDijk77
    https://docs.snyk.io/products/snyk-open-source/open-source-basics
    

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70. Bots: Pros & Cons
    + Relatively easy to install
    
    
    + Automatic PRs
    
    
    - Can create "noise"
    
    
    - Manage PRs (merge & deploy)
    
    
    - No code changes (if needed)
    @MaritvanDijk77
    

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71. Migration tools
    @MaritvanDijk77
    

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72. IntelliJ IDEA
    • Migrate Packages and Classes
    @MaritvanDijk77
    https://www.jetbrains.com/help/idea/migrate.html
    

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73. IntelliJ IDEA
    • Create New Migration
    @MaritvanDijk77
    

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74. Error Prone
    • Static analysis tool for Java that catches common programming
    mistakes at compile-time.
    
    
    • Maven, Gradle, etc.
    
    
    • IntelliJ IDEA / Eclipse plugin, Command line
    
    
    • Bug patterns
    
    
    • Report or fix
    
    
    • Custom checks
    
    
    • Includes Refaster: refactor code using before-and-after templates
    @MaritvanDijk77
    https://errorprone.info/
    

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75. Error Prone
    @MaritvanDijk77
    https://www.youtube.com/watch?v=NPuLeoIzIR0
    

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76. Error Prone Support
    @MaritvanDijk77
    https://error-prone.picnic.tech/
    

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77. OpenRewrite
    • Source code refactoring for framework migrations, vulnerability
    patches, and API migrations
    
    
    • Early focus on Java
    
    
    • Maven & Gradle
    
    
    • Existing recipes
    
    
    • Can author recipes
    @MaritvanDijk77
    https://docs.openrewrite.org/
    

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78. Quickstart: Maven and Gradle
    • Add plugin:
    @MaritvanDijk77
    https://docs.openrewrite.org/getting-started/getting-started
    

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79. @MaritvanDijk77
    https://docs.openrewrite.org/getting-started/getting-started
    • Discover: `./mvnw rewrite:discover`
    

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80. Quickstart: Maven and Gradle
    • Configure plugin:
    @MaritvanDijk77
    https://docs.openrewrite.org/getting-started/getting-started
    

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81. @MaritvanDijk77
    https://docs.openrewrite.org/getting-started/getting-started
    • Run: `./mvnw rewrite:run`
    

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82. Quickstart: Maven and Gradle
    @MaritvanDijk77
    https://docs.openrewrite.org/getting-started/getting-started
    

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83. OpenRewrite
    @MaritvanDijk77
    https://www.youtube.com/watch?v=7fslFKkCkxg
    

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84. Conclusion
    •(Re)evaluate dependencies carefully
    
    
    •Automate checks & updates
    
    
    •Stay safe!
    @MaritvanDijk77
    

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85. Slides
    https://maritvandijk.com/presentations/keep-your-dependencies-in-check/
    
    
    @MaritvanDijk77
    

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