课程: Docker Networking: Creating, Managing, and Troubleshooting Container Networks

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Using Docker DNS for container discovery

Using Docker DNS for container discovery - Docker教程

课程: Docker Networking: Creating, Managing, and Troubleshooting Container Networks

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Using Docker DNS for container discovery

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- [Instructor] Now that we've discussed the different types of network drivers and how to connect containers to networks, let's talk about the underlying connectivity using Docker's built-in domain name system or DNS. Docker's DNS simplifies container communication by letting containers use names instead of hard-to-manage IP addresses. This is especially useful in dynamic environments where containers are frequently created, destroyed, or scaled. When containers are attached to a user-defined bridge network or an overlay network, Docker automatically provides a built-in DNS service. This DNS enables name resolution, meaning containers can reference each other by their names rather than relying on static IP addresses. By default, when a container is launched with a specific name using the name flag, Docker registers that name with its internal DNS system. Containers on the same network can use that name to communicate seamlessly. DNS-based communication eliminates the need to hard code…

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