This PR moves the userland proxies for TCP and UDP traffic out of the
main docker daemon's process ( from goroutines per proxy ) to be a
separate reexec of the docker binary. This reduces the cpu and memory
needed by the daemon and if the proxy processes crash for some reason
the daemon is unaffected. This also displays in the standard process
tree so that a user can clearly see if there is a userland proxy that is
bound to a certain ip and port.
```bash
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
5d349506feb6 busybox:buildroot-2014.02 "sh" 13 minutes ago Up 1 seconds 0.0.0.0:49153->81/tcp, 0.0.0.0:49154->90/tcp hungry_pike
root@1cbfdcedc5a7:/go/src/github.com/docker/docker# ps aux
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 1 0.0 0.1 18168 3100 ? Ss 21:09 0:00 bash
root 8328 0.7 0.6 329072 13420 ? Sl 22:03 0:00 docker -d -s vfs
root 8373 1.0 0.5 196500 10548 ? Sl 22:03 0:00 userland-proxy -proto tcp -host-ip 0.0.0.0 -host-port 49153 -container-ip 10.0.0.2 -container-port 81
root 8382 1.0 0.5 270232 10576 ? Sl 22:03 0:00 userland-proxy -proto tcp -host-ip 0.0.0.0 -host-port 49154 -container-ip 10.0.0.2 -container-port 90
root 8385 1.2 0.0 3168 184 pts/0 Ss+ 22:03 0:00 sh
root 8408 0.0 0.1 15568 2112 ? R+ 22:03 0:00 ps aux
```
This also helps us to cleanly cleanup the proxy processes by stopping
these commands instead of trying to terminate a goroutine.
Signed-off-by: Michael Crosby <michael@docker.com>
renaming this struct to more clearly be session, as that is what it
handles.
Splitting out files for easier readability.
Signed-off-by: Vincent Batts <vbatts@redhat.com>
* starting with filtering for exit codes. `docker ps -a --filter 'exited=1'`
* API doc for filter parameter
* formatting filters for help usage
* tweaks for review
This requires https://github.com/dotcloud/docker/pull/4430
Docker-DCO-1.1-Signed-off-by: Vincent Batts <vbatts@redhat.com> (github: vbatts)
Later versions of `apt` are smart enough to just create this directory if it's missing, but Lucid balks (just like `gnupg` and `gpgv` aren't in the Required set so don't come in a minbase -- good ol' Lucid).
Signed-off-by: Andrew Page <admwiggin@gmail.com>
This is an extremely tentative PR. However, I feel that the suggestions are generally good.
Docker-DCO-1.1-Signed-off-by: Timothy Hobbs <timothyhobbs@seznam.cz> (github: timthelion)
Copied straight from Docker, replacing github.com/docker/docker
with github.com/docker/fig in .validate.
Signed-off-by: Ben Firshman <ben@firshman.co.uk>
This commit contains a re-structured re-write of the original
certificated.md file, containing the amendments proposed with
PR #7120 (commit ID bd28595e310ccfa98) by @timthelion.
Related to: https://github.com/dotcloud/docker/pull/7120
2014-07-30: Update/rebase/squash based on the comments from @jamtur01 and @fredlf.
2014-08-12: Update/rebase/squash based on the comments from @fredlf (of 2014-08-12).
Docker-DCO-1.1-Signed-off-by: O.S. Tezer <ostezer@gmail.com> (github: ostezer)
