The `docker` CLI currently doesn't handle situations where the current context
(as defined in `~/.docker/config.json`) is invalid or doesn't exist. As loading
(and checking) the context happens during initialization of the CLI, this
prevents `docker context` commands from being used, which makes it complicated
to fix the situation. For example, running `docker context use <correct context>`
would fail, which makes it not possible to update the `~/.docker/config.json`,
unless doing so manually.
For example, given the following `~/.docker/config.json`:
```json
{
"currentContext": "nosuchcontext"
}
```
All of the commands below fail:
```bash
docker context inspect rootless
Current context "nosuchcontext" is not found on the file system, please check your config file at /Users/thajeztah/.docker/config.json
docker context rm --force rootless
Current context "nosuchcontext" is not found on the file system, please check your config file at /Users/thajeztah/.docker/config.json
docker context use default
Current context "nosuchcontext" is not found on the file system, please check your config file at /Users/thajeztah/.docker/config.json
```
While these things should be fixed, this patch updates the script to switch
the context using the `--context` flag; this flag is taken into account when
initializing the CLI, so that having an invalid context configured won't
block `docker context` commands from being executed. Given that all `context`
commands are local operations, "any" context can be used (it doesn't need to
make a connection with the daemon).
With this patch, those commands can now be run (and won't fail for the wrong
reason);
```bash
docker --context=default context inspect -f "{{.Name}}" rootless
rootless
docker --context=default context inspect -f "{{.Name}}" rootless-doesnt-exist
context "rootless-doesnt-exist" does not exist
```
One other issue may also cause things to fail during uninstall; trying to remove
a context that doesn't exist will fail (even with the `-f` / `--force` option
set);
```bash
docker --context=default context rm blablabla
Error: context "blablabla": not found
```
While this is "ok" in most circumstances, it also means that (potentially) the
current context is not reset to "default", so this patch adds an explicit
`docker context use`, as well as unsetting the `DOCKER_HOST` and `DOCKER_CONTEXT`
environment variables.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This mirrors what the non-rootless version does, and lets `systemd` understand
when the service is fully up and running.
`NotifyAccess=all` is required, since the main process is the wrapper script,
and it's the child process that emits the signal.
Signed-off-by: Hugo Osvaldo Barrera <hugo@barrera.io>
- Using "/go/" redirects for some topics, which allows us to
redirect to new locations if topics are moved around in the
documentation.
- Updated some old URLs to their new location.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Now `systemctl --user stop docker` completes just with in 1 or 2 seconds.
Fix issue 41944 ("Docker rootless does not exit properly if containers are running")
See systemd.kill(5) https://www.freedesktop.org/software/systemd/man/systemd.kill.html
Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
`/tmp/docker-$(id -u)` is not a good candidate as `$XDG_RUNTIME_DIR`,
because it might be already created by another user.
The new path is `$HOME/.docker/run`.
Cherry-picked from https://github.com/docker/docker-install/pull/178
Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
Usage: `dockerd-rootless-setuptool.sh install --force` .
See `--help` for further information.
Co-authored-by: Tianon Gravi <admwiggin@gmail.com>
Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
Sebastiaan van Stijn