This adds a small C binary for fighting zombies. It is mounted under
`/dev/init` and is prepended to the args specified by the user. You
enable it via a daemon flag, `dockerd --init`, as it is disable by
default for backwards compat.
You can also override the daemon option or specify this on a per
container basis with `docker run --init=true|false`.
You can test this by running a process like this as the pid 1 in a
container and see the extra zombie that appears in the container as it
is running.
```c
int main(int argc, char ** argv) {
pid_t pid = fork();
if (pid == 0) {
pid = fork();
if (pid == 0) {
exit(0);
}
sleep(3);
exit(0);
}
printf("got pid %d and exited\n", pid);
sleep(20);
}
```
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
I always forget which one is which. Now, I can't forget. This is
probably in the docs somewhere but now it's handy at a glance.
Signed-off-by: Drew Erny <drew.erny@docker.com>
This PR adds support for running regular containers to be connected to
swarm mode multi-host network so that:
- containers connected to the same network across the cluster can
discover and connect to each other.
- Get access to services(and their associated loadbalancers)
connected to the same network
Signed-off-by: Jana Radhakrishnan <mrjana@docker.com>
As is raised in 26312, in `docker network ls`, the help output was
mistaken to `volume names`:
```
-q, --quiet Only display volume names
```
This fix changes the help output to:
```
-q, --quiet Only display network IDs
```
This fix also updates the documentation in:
`docs/reference/commandline/network_ls.md`
This fix fixes 26312.
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
This fix tries to address the issue in 26173 where `docker import -c`
with quoted flags returns an error.
The issue was that in `api/client/image/import.go` the flag
`--change/-c` was handled by `StringSliceVarP` which does not handle
the quote well.
The similiar issue was enountered for 23309 (`docker commit`).
This fix takes the same approach as 23309 where `StringSliceVarP`
was replaced with `VarP` and `opts.ListOpts`.
An integration test has been added to cover the changes.
This fix fixes 26173.
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
Before:
$ docker update --cpu-period
Status: flag needs an argument: --cpu-period
See 'docker update --help'., Code: 125
After:
$ docker update --cpu-period
flag needs an argument: --cpu-period
See 'docker update --help'.
Also remove flagErrorFunc function which isn't needed anymore.
Signed-off-by: Antonio Murdaca <runcom@redhat.com>
This fix tries to add the registry mirrors information in the output
of `docker info`.
In our active deployment, we use registry mirrors to help speeding
up the `docker pull`. In the current output of `docker info`,
registry mirrors is not present though it is available in `/info` API.
I think it makes sense to add the registry mirrors to `docker info`,
similiar to insecure registries.
This fix adds the registry mirrors to the output of `docker info`:
```
Registry Mirrors:
https://192.168.1.2/http://registry.mirror.com:5000/
```
An integration test has been added to cover the changes.
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
