this change improves the instructions for
swarm join-token and swarm init;
- only print the join-token command for workers
instead of for both managers and workers, to
prevent users from copying the wrong command.
An extra line is added to explain how to obtain
the manager token.
- print a message that a token was rotated
sucesfully if '--rotate' is used.
- add some extra white-space before / after
the join commands, to make copy/pasting
easier.
this change also does some refactoring of join-token;
- move flagname-constants together with other constants
- use variables for selected role ("worker" / "manager")
to prevent checking for them multiple times, and to
keep the "worker" / "manager" sting centralized
- add an extra blank line after "join-token" instructions
this makes it easier to copy, and cleans up the
code a tiny bit
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit ebebd4176940bc907ba4e8f5fbe62f6a050f8ed4)
Signed-off-by: Tibor Vass <tibor@docker.com>
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit f0230049f0afd318217c60ebe486aab3b54538fd)
Signed-off-by: Tibor Vass <tibor@docker.com>
Hostnames are not supported for now because libnetwork can't use them
for overlay networking yet.
Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
(cherry picked from commit fca0b18dcba99a7fbb8b430a55dc7bf60d5c1356)
Signed-off-by: Tibor Vass <tibor@docker.com>
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>
(cherry picked from commit a0ccd0d42fdb0dd2005f67604cb81a5a6b26787e)
Signed-off-by: Tibor Vass <tibor@docker.com>
Signed-off-by: Vincent Demeester <vincent@sbr.pm>
(cherry picked from commit 180f8c61bb1d3f05c21e697147b2f75a44bda485)
Signed-off-by: Tibor Vass <tibor@docker.com>
Implement the proposal from
https://github.com/docker/docker/issues/24430#issuecomment-233100121
Removes acceptance policy and secret in favor of an automatically
generated join token that combines the secret, CA hash, and
manager/worker role into a single opaque string.
Adds a docker swarm join-token subcommand to inspect and rotate the
tokens.
Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
(cherry picked from commit 2cc5bd33eef038bf5721582e2410ba459bb656e9)
Signed-off-by: Tibor Vass <tibor@docker.com>
Using tabs here seems to cause copy/paste problems in some terminals.
Using spaces is safer.
Fixes#24609
Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
(cherry picked from commit 6de8fcb2f2baf335fc24e10909078199af528e8d)
Signed-off-by: Tibor Vass <tibor@docker.com>
The "none" option was not added to the documentation.
This adds an example, and adds additional information
on manually accepting or rejecting a node.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit 06517753c19262129202b224a35965a2686e49e9)
Signed-off-by: Tibor Vass <tibor@docker.com>
Signed-off-by: John Harris <john@johnharris.io>
(cherry picked from commit 8e148827734a94165156adfd0f6d202d28dff142)
Signed-off-by: Tibor Vass <tibor@docker.com>
- Update ps with `--last` flag
- Update commands with current output
- Make sure hugo does not detect the wrong language
- Update usage for `tag` command to be more coherent with the other ones
Signed-off-by: Vincent Demeester <vincent@sbr.pm>
(cherry picked from commit f4cfc6b9830ed236eb588d6a4dddca7455145e70)
Signed-off-by: Tibor Vass <tibor@docker.com>
The current behavior of `docker swarm init` is to set up a swarm that
has no secret for joining, and does not require manual acceptance for
workers. Since workers may sometimes receive sensitive data such as pull
credentials, it makes sense to harden the defaults.
This change makes `docker swarm init` generate a random secret if none
is provided, and print it to the terminal. This secret will be needed to
join workers or managers to the swarm. In addition to improving access
control to the cluster, this setup removes an avenue for
denial-of-service attacks, since the secret is necessary to even create
an entry in the node list.
`docker swarm init --secret ""` will set up a swarm without a secret,
matching the old behavior. `docker swarm update --secret ""` removes the
automatically generated secret after `docker swarm init`.
Closes#23785
Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
(cherry picked from commit 7342e42fcecbc243bcb8723b8422879662452017)
Signed-off-by: Tibor Vass <tibor@docker.com>
In #24159, the title field of `docker node ls` has been
changed from NAME to HOSTNAME. However, in the docs the
NAMEs are still used for the output of `docker node ls`.
This fix updates docs so that NAME field is changed to
HOSTNAME for all `docker node ls`.
This fix is related to #24159 and #24090.
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
(cherry picked from commit 668b8a998f5ebbe66c7376c432a5fd87208add73)
Signed-off-by: Tibor Vass <tibor@docker.com>
Signed-off-by: Otto Kekäläinen <otto@seravo.fi>
(cherry picked from commit 644a7426cc31c338fedb6574d2b88d1cc2f43a08)
Signed-off-by: Tibor Vass <tibor@docker.com>
The --auto-accept documentation currently says that both worker and
manager nodes are automatically accepted by default. Correct it.
Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
(cherry picked from commit 9aed7d1a3dd7677cbba6b92952a9d28801cf1ceb)
Signed-off-by: Tibor Vass <tibor@docker.com>
