Add validation for stack names to prevent an empty name resulting in _all_
stacks to be returned after filtering, which can result in removal of services
for all stacks if `--prune`, or `docker stack rm` is used.
Before this change;
docker stack deploy -c docker-compose.yml one
docker stack deploy -c docker-compose.yml two
docker stack deploy -c docker-compose.yml three
docker stack deploy -c docker-compose.yml --prune ''
Removing service one_web
Removing service two_web
Removing service three_web
After this change:
docker stack deploy -c docker-compose.yml one
docker stack deploy -c docker-compose.yml two
docker stack deploy -c docker-compose.yml three
docker stack deploy -c docker-compose.yml --prune ''
invalid stack name: ""
Other stack commands were updated as well:
Before this change;
docker stack deploy -c docker-compose.yml ''
Creating network _default
failed to create network _default: Error response from daemon: rpc error: code = InvalidArgument desc = name must be valid as a DNS name component
docker stack ps ''
nothing found in stack:
docker stack rm ''
Removing service one_web
Removing service three_web
Removing service two_web
After this change:
docker stack deploy -c docker-compose.yml ''
invalid stack name: ""
docker stack ps ''
invalid stack name: ""
docker stack rm ''
invalid stack name: ""
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
- Don't wrap the code to be slightly more readable
- Rename `getServiceFilter()` to `getStackServiceFilter()` to be
consistent with other helper functions.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
* Add "kubernetes" struct in config file with "allNamespaces" option, to opt-out this behavior when set as "disabled"
Signed-off-by: Mathieu Champlon <mathieu.champlon@docker.com>
`docker stack services --filter=label=foo=bar --filter=label=foo=baz my-stack` with Swarm gets handled as `filter on (a label named foo with value bar) AND (a label named foo with value baz).
This obviously yields an empty result set every time, but if and how this should be changed is out of scope here, so simply align Kubernetes with Swarm for now.
Signed-off-by: Mathieu Champlon <mathieu.champlon@docker.com>
Before this change:
----------------------------------------------------
Create a service with reservations and limits for memory and cpu:
docker service create --name test \
--limit-memory=100M --limit-cpu=1 \
--reserve-memory=100M --reserve-cpu=1 \
nginx:alpine
Verify the configuration
docker service inspect --format '{{json .Spec.TaskTemplate.Resources}}' test
{
"Limits": {
"NanoCPUs": 1000000000,
"MemoryBytes": 104857600
},
"Reservations": {
"NanoCPUs": 1000000000,
"MemoryBytes": 104857600
}
}
Update just CPU limit and reservation:
docker service update --limit-cpu=2 --reserve-cpu=2 test
Notice that the memory limit and reservation is not preserved:
docker service inspect --format '{{json .Spec.TaskTemplate.Resources}}' test
{
"Limits": {
"NanoCPUs": 2000000000
},
"Reservations": {
"NanoCPUs": 2000000000
}
}
Update just Memory limit and reservation:
docker service update --limit-memory=200M --reserve-memory=200M test
Notice that the CPU limit and reservation is not preserved:
docker service inspect --format '{{json .Spec.TaskTemplate.Resources}}' test
{
"Limits": {
"MemoryBytes": 209715200
},
"Reservations": {
"MemoryBytes": 209715200
}
}
After this change:
----------------------------------------------------
Create a service with reservations and limits for memory and cpu:
docker service create --name test \
--limit-memory=100M --limit-cpu=1 \
--reserve-memory=100M --reserve-cpu=1 \
nginx:alpine
Verify the configuration
docker service inspect --format '{{json .Spec.TaskTemplate.Resources}}' test
{
"Limits": {
"NanoCPUs": 1000000000,
"MemoryBytes": 104857600
},
"Reservations": {
"NanoCPUs": 1000000000,
"MemoryBytes": 104857600
}
}
Update just CPU limit and reservation:
docker service update --limit-cpu=2 --reserve-cpu=2 test
Confirm that the CPU limits/reservations are updated, but memory limit and reservation are preserved:
docker service inspect --format '{{json .Spec.TaskTemplate.Resources}}' test
{
"Limits": {
"NanoCPUs": 2000000000,
"MemoryBytes": 104857600
},
"Reservations": {
"NanoCPUs": 2000000000,
"MemoryBytes": 104857600
}
}
Update just Memory limit and reservation:
docker service update --limit-memory=200M --reserve-memory=200M test
Confirm that the Mempry limits/reservations are updated, but CPU limit and reservation are preserved:
docker service inspect --format '{{json .Spec.TaskTemplate.Resources}}' test
{
"Limits": {
"NanoCPUs": 2000000000,
"MemoryBytes": 209715200
},
"Reservations": {
"NanoCPUs": 2000000000,
"MemoryBytes": 209715200
}
}
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This patch hides the [flags] in the usage output of commands, using the
new `.DisableFlagsInUseLine` option, instead of the temporary workaround
added in 8e600e10f7
Before this change:
docker run
"docker run" requires at least 1 argument.
See 'docker run --help'.
Usage: docker run [OPTIONS] IMAGE [COMMAND] [ARG...] [flags]
Run a command in a new container
After this change:
docker run
"docker run" requires at least 1 argument.
See 'docker run --help'.
Usage: docker run [OPTIONS] IMAGE [COMMAND] [ARG...]
Run a command in a new container
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
The `docker version` output now uses a tabwriter, so use single
tabs to print the output.
Before this change:
Server:
Engine:
Version: 18.05.0-ce
API version: 1.37 (minimum version 1.12)
Go version: go1.10.1
Git commit: f150324
Built: Wed May 9 22:20:16 2018
OS/Arch: linux/amd64
Experimental: true
Kubernetes:
Version: v1.9.6
StackAPI: v1beta2
After this change:
Server:
Engine:
Version: 18.05.0-ce
API version: 1.37 (minimum version 1.12)
Go version: go1.10.1
Git commit: f150324
Built: Wed May 9 22:20:16 2018
OS/Arch: linux/amd64
Experimental: true
Kubernetes:
Version: v1.9.6
StackAPI: v1beta2
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Switch from x/net/context to context made "go vet" see the previously
unseen errors:
> cli/command/container/start.go:57::error: the cancelFun function is
> not used on all paths (possible context leak) (vet)
> cli/command/container/start.go:63::error: this return statement may be
> reached without using the cancelFun var defined on line 57 (vet)
> cli/command/container/run.go:159::error: the cancelFun function is not
> used on all paths (possible context leak) (vet)
> cli/command/container/run.go:164::error: this return statement may be
> reached without using the cancelFun var defined on line 159 (vet)
Do call the cancel function.
Note we might end up calling it twice which is fine as long as I can see
from the Go 1.10 source code.
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
Since go 1.7, "context" is a standard package. Since go 1.9,
x/net/context merely provides some types aliased to those in
the standard context package.
The changes were performed by the following script:
for f in $(git ls-files \*.go | grep -v ^vendor/); do
sed -i 's|golang.org/x/net/context|context|' $f
goimports -w $f
for i in 1 2; do
awk '/^$/ {e=1; next;}
/\t"context"$/ {e=0;}
{if (e) {print ""; e=0}; print;}' < $f > $f.new && \
mv $f.new $f
goimports -w $f
done
done
[v2: do awk/goimports fixup twice]
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
Removing a host by `<host>:<ip>` should only remove occurences of the host with
a matching IP-address, instead of removing all entries for that host.
In addition, combining `--host-rm` and `--host-add` for the same host should
result in the new host being added.
This patch fixes the way the diff is calculated to allow combining
removing/adding, and to support entries having both a canonical, and aliases.
Aliases cannot be added by the CLI, but are supported in the Service spec, thus
should be taken into account:
Entries can be removed by either a specific `<host-name>:<ip-address>`
mapping, or by `<host>` alone:
- If both IP-address and host-name is provided, only remove the hostname
from entries that match the given IP-address.
- If only a host-name is provided, remove the hostname from any entry it
is part of (either as _canonical_ host-name, or as _alias_).
- If, after removing the host-name from an entry, no host-names remain in
the entry, the entry itself should be removed.
For example, the list of host-entries before processing could look like this:
hosts = &[]string{
"127.0.0.2 host3 host1 host2 host4",
"127.0.0.1 host1 host4",
"127.0.0.3 host1",
"127.0.0.1 host1",
}
Removing `host1` removes every occurrence:
hosts = &[]string{
"127.0.0.2 host3 host2 host4",
"127.0.0.1 host4",
}
Whereas removing `host1:127.0.0.1` only remove the host if the IP-address matches:
hosts = &[]string{
"127.0.0.2 host3 host1 host2 host4",
"127.0.0.1 host4",
"127.0.0.3 host1",
}
Before this patch:
$ docker service create --name my-service --host foo:127.0.0.1 --host foo:127.0.0.2 --host foo:127.0.0.3 nginx:alpine
$ docker service update --host-rm foo:127.0.0.1 --host-add foo:127.0.0.4 my-service
$ docker service inspect --format '{{.Spec.TaskTemplate.ContainerSpec.Hosts}}' my-service
[]
After this patch is applied:
$ docker service create --name my-service --host foo:127.0.0.1 --host foo:127.0.0.2 --host foo:127.0.0.3 nginx:alpine
$ docker service update --host-rm foo:127.0.0.1 --host-add foo:127.0.0.5 my-service
$ docker service inspect --format '{{.Spec.TaskTemplate.ContainerSpec.Hosts}}' my-service
[127.0.0.2 foo 127.0.0.3 foo 127.0.0.4 foo]
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
The "update" and "rollback" configurations were cross-wired, as a result, setting
`--rollback-*` options would override the service's update-options.
Creating a service with both update, and rollback configuration:
docker service create \
--name=test \
--update-failure-action=pause \
--update-max-failure-ratio=0.6 \
--update-monitor=3s \
--update-order=stop-first \
--update-parallelism=3 \
--rollback-failure-action=continue \
--rollback-max-failure-ratio=0.5 \
--rollback-monitor=4s \
--rollback-order=start-first \
--rollback-parallelism=2 \
--tty \
busybox
Before this change:
docker service inspect --format '{{json .Spec.UpdateConfig}}' test \
&& docker service inspect --format '{{json .Spec.RollbackConfig}}' test
Produces:
{"Parallelism":3,"FailureAction":"pause","Monitor":3000000000,"MaxFailureRatio":0.6,"Order":"stop-first"}
{"Parallelism":3,"FailureAction":"pause","Monitor":3000000000,"MaxFailureRatio":0.6,"Order":"stop-first"}
After this change:
{"Parallelism":3,"FailureAction":"pause","Monitor":3000000000,"MaxFailureRatio":0.6,"Order":"stop-first"}
{"Parallelism":2,"FailureAction":"continue","Monitor":4000000000,"MaxFailureRatio":0.5,"Order":"start-first"}
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Nassim 'Nass' Eddequiouaq
Sebastiaan van Stijn
Silvin Lubecki
Sebastiaan van Stijn
Vincent Demeester
Zachary Romero
Vincent Demeester
Mathieu Champlon
Simon Ferquel
Victor Vieux
Anda Xu
Brian Goff
Kir Kolyshkin
Essam A. Hassan
Justyn Temme