Hey there! Let's clarify the Docker compatibility for both Kubernetes 1.8.7 and the 1.9 version you're curious about:

For Kubernetes 1.8.7 #

Based on official compatibility guidelines, here's the breakdown of supported Docker versions:

• Recommended: v1.12.x (this is the most thoroughly tested and stable match)
• Officially verified to work:
  • v1.11.x
  • v1.13.x
  • 17.03.x
• Use at your own risk: 17.06+ versions might function, but they haven't been validated by the Kubernetes node team, so they're not recommended for production environments.

For Kubernetes 1.9.x #

The compatibility range has minor updates compared to 1.8.7:

• Still recommended: v1.12.x
• Verified working versions:
  • v1.13.x
  • 17.03.x
• Improved support for newer Docker: 17.06.x versions have received more testing in the 1.9 release cycle, though they're still not the primary recommended choice. As always, prioritize stable, officially validated versions for production setups.

A quick note: Regardless of which Kubernetes version you choose, stick to Docker's stable release branch (avoid edge/beta builds) to maximize compatibility and system stability.

内容的提问来源于stack exchange，提问作者tab87vn