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There are currently problems with "swarm init" and "swarm join" when an explicit --listen-addr flag is not provided. swarmkit defaults to finding the IP address associated with the default route, and in cloud setups this is often the wrong choice. Introduce a notion of "advertised address", with the client flag --advertise-addr, and the daemon flag --swarm-default-advertise-addr to provide a default. The default listening address is now 0.0.0.0, but a valid advertised address must be detected or specified. If no explicit advertised address is specified, error out if there is more than one usable candidate IP address on the system. This requires a user to explicitly choose instead of letting swarmkit make the wrong choice. For the purposes of this autodetection, we ignore certain interfaces that are unlikely to be relevant (currently docker*). The user is also required to choose a listen address on swarm init if they specify an explicit advertise address that is a hostname or an IP address that's not local to the system. This is a requirement for overlay networking. Also support specifying interface names to --listen-addr, --advertise-addr, and the daemon flag --swarm-default-advertise-addr. This will fail if the interface has multiple IP addresses (unless it has a single IPv4 address and a single IPv6 address - then we resolve the tie in favor of IPv4). This change also exposes the node's externally-reachable address in docker info, as requested by #24017. Make corresponding API and CLI docs changes. Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com> |
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| .. | ||
| apparmor | ||
| builder | ||
| completion | ||
| desktop-integration | ||
| docker-device-tool | ||
| docker-engine-selinux | ||
| gitdm | ||
| httpserver | ||
| init | ||
| mkimage | ||
| nnp-test | ||
| reprepro | ||
| syntax | ||
| syscall-test | ||
| udev | ||
| vagrant-docker | ||
| check-config.sh | ||
| dockerize-disk.sh | ||
| download-frozen-image-v1.sh | ||
| download-frozen-image-v2.sh | ||
| mkimage-alpine.sh | ||
| mkimage-arch-pacman.conf | ||
| mkimage-arch.sh | ||
| mkimage-archarm-pacman.conf | ||
| mkimage-busybox.sh | ||
| mkimage-crux.sh | ||
| mkimage-debootstrap.sh | ||
| mkimage-rinse.sh | ||
| mkimage-yum.sh | ||
| mkimage.sh | ||
| nuke-graph-directory.sh | ||
| project-stats.sh | ||
| README.md | ||
| report-issue.sh | ||
| REVIEWERS | ||
The contrib directory contains scripts, images, and other helpful things
which are not part of the core docker distribution. Please note that they
could be out of date, since they do not receive the same attention as the
rest of the repository.