Before this patch, the Server output would be printed even if we failed to
connect (including WARNINGS):
```bash
docker -H tcp://127.0.0.1:2375 info
Cannot connect to the Docker daemon at tcp://127.0.0.1:2375. Is the docker daemon running?
Client:
Context: default
Debug Mode: false
Plugins:
buildx: Docker Buildx (Docker Inc., v0.8.2)
compose: Docker Compose (Docker Inc., v2.4.1)
sbom: View the packaged-based Software Bill Of Materials (SBOM) for an image (Anchore Inc., 0.6.0)
scan: Docker Scan (Docker Inc., v0.17.0)
Server:
Containers: 0
Running: 0
Paused: 0
Stopped: 0
Images: 0
Plugins:
Volume:
Network:
Log:
Swarm:
NodeID:
Is Manager: false
Node Address:
CPUs: 0
Total Memory: 0B
Docker Root Dir:
Debug Mode: false
Experimental: false
Live Restore Enabled: false
WARNING: No memory limit support
WARNING: No swap limit support
WARNING: No oom kill disable support
WARNING: No cpu cfs quota support
WARNING: No cpu cfs period support
WARNING: No cpu shares support
WARNING: No cpuset support
WARNING: IPv4 forwarding is disabled
WARNING: bridge-nf-call-iptables is disabled
WARNING: bridge-nf-call-ip6tables is disabled
ERROR: Cannot connect to the Docker daemon at tcp://127.0.0.1:2375. Is the docker daemon running?
errors pretty printing info
```
With this patch;
```bash
docker -H tcp://127.0.0.1:2375 info
Client:
Context: default
Debug Mode: false
Plugins:
buildx: Docker Buildx (Docker Inc., v0.8.2)
compose: Docker Compose (Docker Inc., v2.4.1)
sbom: View the packaged-based Software Bill Of Materials (SBOM) for an image (Anchore Inc., 0.6.0)
scan: Docker Scan (Docker Inc., v0.17.0)
Server:
ERROR: Cannot connect to the Docker daemon at tcp://127.0.0.1:2375. Is the docker daemon running?
errors pretty printing info
```
And if a custom format is used:
```bash
docker -H tcp://127.0.0.1:2375 info --format '{{.Containers}}'
Cannot connect to the Docker daemon at tcp://127.0.0.1:2375. Is the docker daemon running?
0
```
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Before this change, the function could print an error in some cases, for example;
```bash
docker -H tcp://127.0.0.1:2375 info --format '{{.LoggingDriver}}'
template: :1:2: executing "" at <.LoggingDriver>: reflect: indirection through nil pointer to embedded struct field Info
```
With this patch applied, the error is handled gracefully, and when failing to
connect with the daemon, the error is logged;
```bash
docker -H tcp://127.0.0.1:2375 info --format '{{.LoggingDriver}}'
Cannot connect to the Docker daemon at tcp://127.0.0.1:2375. Is the docker daemon running?
docker -H tcp://127.0.0.1:2375 info --format '{{json .}}'
Cannot connect to the Docker daemon at tcp://127.0.0.1:2375. Is the docker daemon running?
{"ID":"","Containers":0,"..."}}
```
Note that the connection error is also included in the JSON `ServerErrors` field,
so that the information does not get lost, even if STDERR would be redirected;
```bash
docker -H tcp://127.0.0.1:2375 info --format '{{json .ServerErrors}}' 2> /dev/null
["Cannot connect to the Docker daemon at tcp://127.0.0.1:2375. Is the docker daemon running?"]
```
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This adds a new annotation to commands that are known to be frequently
used, and allows setting a custom weight/order for these commands to
influence in what order they appear in the --help output.
I'm not entirely happy with the implementation (we could at least use
some helpers for this, and/or make it more generic to group commands
in output), but it could be a start.
For now, limiting this to only be used for the top-level --help, but
we can expand this to subcommands as well if we think it makes sense
to highlight "common" / "commonly used" commands.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
These warnings were for features that are no longer supported (overlay
on a backingFS without d_type support), or related to the deprecated
devicemapper storage driver.
Removing this function for that reason.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
cli/compose/interpolation/interpolation.go:102:4: error-strings: error strings should not be capitalized or end with punctuation or a newline (revive)
"invalid interpolation format for %s: %#v. You may need to escape any $ with another $.",
^
cli/command/stack/loader/loader.go:30:30: error-strings: error strings should not be capitalized or end with punctuation or a newline (revive)
return nil, errors.Errorf("Compose file contains unsupported options:\n\n%s\n",
^
cli/command/formatter/formatter.go:76:30: error-strings: error strings should not be capitalized or end with punctuation or a newline (revive)
return tmpl, errors.Errorf("Template parsing error: %v\n", err)
^
cli/command/formatter/formatter.go:97:24: error-strings: error strings should not be capitalized or end with punctuation or a newline (revive)
return errors.Errorf("Template parsing error: %v\n", err)
^
cli/command/image/build.go:257:25: error-strings: error strings should not be capitalized or end with punctuation or a newline (revive)
return errors.Errorf("error checking context: '%s'.", err)
^
cli/command/volume/create.go:35:27: error-strings: error strings should not be capitalized or end with punctuation or a newline (revive)
return errors.Errorf("Conflicting options: either specify --name or provide positional arg, not both\n")
^
cli/command/container/create.go:160:24: error-strings: error strings should not be capitalized or end with punctuation or a newline (revive)
return errors.Errorf("failed to remove the CID file '%s': %s \n", cid.path, err)
^
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This warning will be moved to the daemon-side, similar to how it returns
other warnings. There's work in progress to change the name of the default
profile, so we may need to backport this change to prevent existing clients
from printing an incorrect warning if they're connecting to a newer daemon.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Errors always need to go to stderr.
This also fixes a test in moby/moby's integration-cli which is checking
to see if errors connecting to the daemon are output on stderr.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
The docker info output contains both "local" and "remote" (daemon-side) information.
The API endpoint to collect daemon information (`/info`) is known to be "heavy",
and (depending on what information is needed) not needed.
This patch checks if the template (`--format`) used requires information from the
daemon, and if not, omits making an API request.
This will improve performance if (for example), the current "context" is requested
from `docker info` or if only plugin information is requested.
Before:
time docker info --format '{{range .ClientInfo.Plugins}}Plugin: {{.Name}}, {{end}}'
Plugin: buildx, Plugin: compose, Plugin: scan,
________________________________________________________
Executed in 301.91 millis fish external
usr time 168.64 millis 82.00 micros 168.56 millis
sys time 113.72 millis 811.00 micros 112.91 millis
time docker info --format '{{json .ClientInfo.Plugins}}'
time docker info --format '{{.ClientInfo.Context}}'
default
________________________________________________________
Executed in 334.38 millis fish external
usr time 177.23 millis 93.00 micros 177.13 millis
sys time 124.90 millis 927.00 micros 123.97 millis
docker context use remote-ssh-daemon
time docker info --format '{{.ClientInfo.Context}}'
remote-ssh-daemon
________________________________________________________
Executed in 1.22 secs fish external
usr time 116.93 millis 110.00 micros 116.82 millis
sys time 144.36 millis 887.00 micros 143.47 millis
And daemon logs:
Jul 06 12:42:12 remote-ssh-daemon dockerd[14377]: time="2021-07-06T12:42:12.139529947Z" level=debug msg="Calling HEAD /_ping"
Jul 06 12:42:12 remote-ssh-daemon dockerd[14377]: time="2021-07-06T12:42:12.140772052Z" level=debug msg="Calling HEAD /_ping"
Jul 06 12:42:12 remote-ssh-daemon dockerd[14377]: time="2021-07-06T12:42:12.163832016Z" level=debug msg="Calling GET /v1.41/info"
After:
time ./build/docker info --format '{{range .ClientInfo.Plugins}}Plugin: {{.Name}}, {{end}}'
Plugin: buildx, Plugin: compose, Plugin: scan,
________________________________________________________
Executed in 139.84 millis fish external
usr time 76.53 millis 62.00 micros 76.46 millis
sys time 69.25 millis 723.00 micros 68.53 millis
time ./build/docker info --format '{{.ClientInfo.Context}}'
default
________________________________________________________
Executed in 136.94 millis fish external
usr time 74.61 millis 74.00 micros 74.54 millis
sys time 65.77 millis 858.00 micros 64.91 millis
docker context use remote-ssh-daemon
time ./build/docker info --format '{{.ClientInfo.Context}}'
remote-ssh-daemon
________________________________________________________
Executed in 1.02 secs fish external
usr time 74.25 millis 76.00 micros 74.17 millis
sys time 65.09 millis 643.00 micros 64.44 millis
And daemon logs:
Jul 06 12:42:55 remote-ssh-daemon dockerd[14377]: time="2021-07-06T12:42:55.313654687Z" level=debug msg="Calling HEAD /_ping"
Jul 06 12:42:55 remote-ssh-daemon dockerd[14377]: time="2021-07-06T12:42:55.314811624Z" level=debug msg="Calling HEAD /_ping"
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
The kernel memory limit is deprecated in Docker 20.10.0,
and its support was removed in runc v1.0.0-rc94.
So, this warning can be safely removed.
Relevant: b8ca7de823
Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
Fairly straight forward. It became necessary to wrap `Plugin.Err` with a type
which implements `encoding.MarshalText` in order to have that field rendered
properly in the `docker info -f '{{json}}'` output.
Since I changed the type somewhat I also added a unit test for `formatInfo`.
Signed-off-by: Ian Campbell <ijc@docker.com>
That is, reindent the two sections by one space.
While the code was done by hand the `.golden` files had the extra space
inserted with emacs' `string-insert-rectangle` macro to (try to) avoid possible
manual errors. The docs were edited the same way.
Signed-off-by: Ian Campbell <ijc@docker.com>
Right now the only client side info we have is whether debug is enabled, but we
expect more in the future.
We also preemptively prepare for the possibility of multiple errors when
gathering both daemon and client info.
Signed-off-by: Ian Campbell <ijc@docker.com>
This PR chnages allow user to configure data path
port number. By default we use 4789 port number. But this commit
will allow user to configure port number during swarm init.
Data path port can't be modified after swarm init.
Signed-off-by: selansen <elango.siva@docker.com>
Signed-off-by: Daniel Hiltgen <daniel.hiltgen@docker.com>
(cherry picked from commit 68be7cb376)
Signed-off-by: Daniel Hiltgen <daniel.hiltgen@docker.com>
Warnings are now generated by the daemon, and returned as
part of the /info API response.
If warnings are returned by the daemon; use those instead
of generating them locally.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This feature brings new attribute/option for swarm init command.
default-addr-pool will take string input which can be in below format.
"CIDR,CIDR,CIDR...:SUBNET-SIZE".
Signed-off-by: selansen <elango.siva@docker.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>
- Some of them don't make sense anymore
- Some are deprecated and removed from the engine since a few versions
already.
Signed-off-by: Vincent Demeester <vincent@sbr.pm>
and enable the new WarnUnmatchedDirective to warn if a nolint is unnecessary.
remove some unnecessary nolint
Signed-off-by: Daniel Nephin <dnephin@docker.com>
Some mild refactoring of the docker info command;
- Use `fmt.Fprinln()` instead of `fmt.Fprintf()` where possible
- Rename `fprintfIfNotEmpty()` to `fprintlnNonEmpty()`, and removed
return variables, because they were not used. `fprintlnNonEmpty()`
now uses fmt.Fprintln()` instead of `fmt.Fprintf()`, because
formatting was not used.
- Use `fprintlnNonEmpty()` to get rid of some `if` statements
- Extract printing Swarm-related information to a `printSwarmInfo()` function
- Change `Http Proxy` and `Https Proxy` to `HTTP Proxy` / `HTTPS Proxy`
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This package will be deprecated/removed from `docker/docker/pkg` and
is mainly used for the cli format options. Let's import it and
maintain here.
Signed-off-by: Vincent Demeester <vincent@sbr.pm>
responses to the CLI. In `node ls`, display only whether the nodes' TLS
info matches the cluster's TLS info, or whether the node needs cert rotation.
Signed-off-by: Ying Li <ying.li@docker.com>
Whitelist some existing offenders, and use a high limit for now.
This limit should decrese over time.
Signed-off-by: Daniel Nephin <dnephin@docker.com>
Sebastiaan van Stijn
Brian Goff
Akihiro Suda
Wang Yumu
Silvin Lubecki
Ian Campbell
selansen
Daniel Hiltgen
Kir Kolyshkin
Vincent Demeester
Daniel Nephin
Ying Li
cyli
Stephen J Day
Daniel Nephin