Older API clients did not use a pointer for `PidsLimit`, so
API requests would always send `0`, resulting in any previous
value to be reset after an update:
Before this patch:
(using a 17.06 Docker CLI):
```bash
docker run -dit --name test --pids-limit=16 busybox
docker container inspect --format '{{json .HostConfig.PidsLimit}}' test
16
docker container update --memory=100M --memory-swap=200M test
docker container inspect --format '{{json .HostConfig.PidsLimit}}' test
0
docker container exec test cat /sys/fs/cgroup/pids/pids.max
max
```
With this patch applied:
(using a 17.06 Docker CLI):
```bash
docker run -dit --name test --pids-limit=16 busybox
docker container inspect --format '{{json .HostConfig.PidsLimit}}' test
16
docker container update --memory=100M --memory-swap=200M test
docker container inspect --format '{{json .HostConfig.PidsLimit}}' test
16
docker container exec test cat /sys/fs/cgroup/pids/pids.max
16
```
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Some tests were skipped if the local daemon did not have
experimental features enabled; at the same time, some tests
unconditionally created a new (experimental) daemon, even if
the local daemon already had experimental enabled.
This patch;
- Checks if the "testEnv" is an experimental Linux daemon
- If not, and the daemon is running locally; spin up a new
experimental daemon to be used during the test.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Monitoring systems and load balancers are usually configured to use HEAD
requests for health monitoring. The /_ping endpoint currently does not
support this type of request, which means that those systems have fallback
to GET requests.
This patch adds support for HEAD requests on the /_ping endpoint.
Although optional, this patch also returns `Content-Type` and `Content-Length`
headers in case of a HEAD request; Refering to RFC 7231, section 4.3.2:
The HEAD method is identical to GET except that the server MUST NOT
send a message body in the response (i.e., the response terminates at
the end of the header section). The server SHOULD send the same
header fields in response to a HEAD request as it would have sent if
the request had been a GET, except that the payload header fields
(Section 3.3) MAY be omitted. This method can be used for obtaining
metadata about the selected representation without transferring the
representation data and is often used for testing hypertext links for
validity, accessibility, and recent modification.
A payload within a HEAD request message has no defined semantics;
sending a payload body on a HEAD request might cause some existing
implementations to reject the request.
The response to a HEAD request is cacheable; a cache MAY use it to
satisfy subsequent HEAD requests unless otherwise indicated by the
Cache-Control header field (Section 5.2 of [RFC7234]). A HEAD
response might also have an effect on previously cached responses to
GET; see Section 4.3.5 of [RFC7234].
With this patch applied, either `GET` or `HEAD` requests work; the only
difference is that the body is empty in case of a `HEAD` request;
curl -i --unix-socket /var/run/docker.sock http://localhost/_ping
HTTP/1.1 200 OK
Api-Version: 1.40
Cache-Control: no-cache, no-store, must-revalidate
Docker-Experimental: false
Ostype: linux
Pragma: no-cache
Server: Docker/dev (linux)
Date: Mon, 14 Jan 2019 12:35:16 GMT
Content-Length: 2
Content-Type: text/plain; charset=utf-8
OK
curl --head -i --unix-socket /var/run/docker.sock http://localhost/_ping
HTTP/1.1 200 OK
Api-Version: 1.40
Cache-Control: no-cache, no-store, must-revalidate
Content-Length: 0
Content-Type: text/plain; charset=utf-8
Docker-Experimental: false
Ostype: linux
Pragma: no-cache
Server: Docker/dev (linux)
Date: Mon, 14 Jan 2019 12:34:15 GMT
The client is also updated to use `HEAD` by default, but fallback to `GET`
if the daemon does not support this method.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
- Add support for exact list of capabilities, support only OCI model
- Support OCI model on CapAdd and CapDrop but remain backward compatibility
- Create variable locally instead of declaring it at the top
- Use const for magic "ALL" value
- Rename `cap` variable as it overlaps with `cap()` built-in
- Normalize and validate capabilities before use
- Move validation for conflicting options to validateHostConfig()
- TweakCapabilities: simplify logic to calculate capabilities
Signed-off-by: Olli Janatuinen <olli.janatuinen@gmail.com>
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This fix moves multiple places of serviceRunningTasksCount
to one location in integration/internal/swarm, so that
code duplication could be removed.
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
This fix replaces waitAndAssert in config_test.go with poll.WaitOn
so that the testing is consistent with all other tests in integration.
Also, config_test.go uses to wait and sleep for 2 * (1 minutes) to get the task
info. This fix combined those two sleep and wait for 1 mins. Think 1 min
is enough for config test.
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
This introduces `NoTasksForService` and `NoTasks` poller checks, that
can be used to check if no tasks are left in general, or for a specific
service.
Some redundant checks were also removed from some tests.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Clean up and refactor this test;
- make `serviceRunningTasksCount` to use a `desired-state` filter
- use subtests, and inline the `validNetworkVerbose` checks; also use
asserts for the individual checks, so that any failure will log exactly
what failed
- remove helper functions that are no longer needed
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Tests generally already have a client instance, so it
probably makes more sense to just pass it, and make
this utility a bit more flexible to use.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
By default, exec uses the environment of the current process, however,
if `exec.Env` is not `nil`, the environment is discarded:
e73f489494/src/os/exec/exec.go (L57-L60)
> If Env is nil, the new process uses the current process's environment.
When adding a new environment variable, prepend the current environment,
to make sure it is not discarded.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
These tests should not require a local daemon; they may fail if
the local and remote system's clocks are out of sync with more
than a minute though, but that's something we should prevent from
happening :-)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Tests which will re-deploy containers uses function serviceIsUpdated() to
make sure that service update really reached state UpdateStateCompleted.
Tests which will not re-deploy container uses function
serviceSpecIsUpdated to make sure that service version is increased.
Signed-off-by: Olli Janatuinen <olli.janatuinen@gmail.com>
