These interfaces were added in aacddda89d, with
no clear motivation, other than "Also hide ViewDB behind an interface".
This patch removes the interface in favor of using a concrete implementation;
There's currently only one implementation of this interface, and if we would
decide to change to an alternative implementation, we could define relevant
interfaces on the receiver side.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
The wrapper sets the default namespace in the context if none is
provided, this is needed because we are calling these services directly
and not trough GRPC that has an interceptor to set the default namespace
to all calls.
Signed-off-by: Djordje Lukic <djordje.lukic@docker.com>
The containerd client is very chatty at the best of times. Because the
libcontained API is stateless and references containers and processes by
string ID for every method call, the implementation is essentially
forced to use the containerd client in a way which amplifies the number
of redundant RPCs invoked to perform any operation. The libcontainerd
remote implementation has to reload the containerd container, task
and/or process metadata for nearly every operation. This in turn
amplifies the number of context switches between dockerd and containerd
to perform any container operation or handle a containerd event,
increasing the load on the system which could otherwise be allocated to
workloads.
Overhaul the libcontainerd interface to reduce the impedance mismatch
with the containerd client so that the containerd client can be used
more efficiently. Split the API out into container, task and process
interfaces which the consumer is expected to retain so that
libcontainerd can retain state---especially the analogous containerd
client objects---without having to manage any state-store inside the
libcontainerd client.
Signed-off-by: Cory Snider <csnider@mirantis.com>
Treat (storage/graph)Driver as snapshotter
Also moved some layerStore related initialization to the non-c8d case
because otherwise they get treated as a graphdriver plugins.
Co-authored-by: Sebastiaan van Stijn <github@gone.nl>
Signed-off-by: Djordje Lukic <djordje.lukic@docker.com>
Signed-off-by: Paweł Gronowski <pawel.gronowski@docker.com>
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
It was only used as an intermediate variable to store what's returned
by layerstore.DriverName() / ImageService.StorageDriver()
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Use the information stored as part of the container for the error-message,
instead of querying the current storage driver from the daemon.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
The check was accounting for old containers that did not have a storage-driver
set in their config, and was added in 4908d7f81d
for docker v0.7.0-rc6 - nearly 9 Years ago, so very likely nobody is still
depending on this ;-)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This was added in 0cba7740d4, as part of
the LCOW implementation. LCOW support has been removed, so we can remove
this check.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Initial pull/ls works
Build is deactivated if the feature is active
Signed-off-by: Djordje Lukic <djordje.lukic@docker.com>
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
The LoopkupImage method is only used by the inspect image route and
returns an api/type struct. The depenency to api/types of the
daemon/images package is wrong, the daemon doesn't need to know about
the api types.
Signed-off-by: Djordje Lukic <djordje.lukic@docker.com>
Commit 483aa6294b introduced a regression, causing
spurious warnings to be shown when starting a daemon for the first time after
a fresh install:
docker info
...
WARNING: IPv4 forwarding is disabled
WARNING: bridge-nf-call-iptables is disabled
WARNING: bridge-nf-call-ip6tables is disabled
The information shown is incorrect, as checking the corresponding options on
the system, shows that these options are available:
cat /proc/sys/net/ipv4/ip_forward
1
cat /proc/sys/net/bridge/bridge-nf-call-iptables
1
cat /proc/sys/net/bridge/bridge-nf-call-ip6tables
1
The reason this is failing is because the daemon itself reconfigures those
options during networking initialization in `configureIPForwarding()`;
cf4595265e/libnetwork/drivers/bridge/setup_ip_forwarding.go (L14-L25)
Network initialization happens in the `daemon.restore()` function within `daemon.NewDaemon()`:
cf4595265e/daemon/daemon.go (L475-L478)
However, 483aa6294b moved detection of features
earlier in the `daemon.NewDaemon()` function, and collects the system information
(`d.RawSysInfo()`) before we enter `daemon.restore()`;
cf4595265e/daemon/daemon.go (L1008-L1011)
For optimization (collecting the system information comes at a cost), those
results are cached on the daemon, and will only be performed once (using a
`sync.Once`).
This patch:
- introduces a `getSysInfo()` utility, which collects system information without
caching the results
- uses `getSysInfo()` to collect the preliminary information needed at that
point in the daemon's lifecycle.
- moves printing warnings to the end of `daemon.NewDaemon()`, after all information
can be read correctly.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
The libtrust trust-key is only used for pushing legacy image manifests;
pushing these images has been deprecated, and we only need to be able
to push them in our CI.
This patch disables generating the trust-key (and related paths) unless
the DOCKER_ALLOW_SCHEMA1_PUSH_DONOTUSE env-var is set (which we do in
our CI).
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This change is in preparation of deprecating support for old manifests.
Currently the daemon's ID is based on the trust-key ID, which will be
removed once we fully deprecate support for old manifests (the trust
key is currently only used in tests).
This patch:
- looks if a trust-key is present; if so, it migrates the trust-key
ID to the new "engine-id" file within the daemon's root.
- if no trust-key is present (so in case it's a "fresh" install), we
generate a UUID instead and use that as ID.
The migration is to prevent engines from getting a new ID on upgrades;
while we don't provide any guarantees on the engine's ID, users may
expect the ID to be "stable" (not change) between upgrades.
A test has been added, which can be ran with;
make DOCKER_GRAPHDRIVER=vfs TEST_FILTER='TestConfigDaemonID' test-integration
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Use the default (0) value to indicate "not set", which simplifies
working with these configuration options, preventing the need to
use intermediate variables etc.
While changing this code, also making some small cleanups, such
as replacing "fmt.Sprintf()" for "strconv" variants.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This method returned the network controller, only to set it on the daemon.
While making this change, also;
- update some error messages to be in the correct format
- use errors.Wrap() where possible
- extract configuring networks into a separate function to make the flow
slightly easier to follow.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This is a method on the daemon, which itself holds the Config, so
there's no need to pass the same configuration as an argument.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This avoids having to determine what the default is in various
parts of the code. If no custom timeout is passed (nil), the
default will be used.
Also remove the named return variable from cleanupContainer(),
as it wasn't used.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Finish the refactor which was partially completed with commit
34536c498d, passing around IdentityMapping structs instead of pairs of
[]IDMap slices.
Existing code which uses []IDMap relies on zero-valued fields to be
valid, empty mappings. So in order to successfully finish the
refactoring without introducing bugs, their replacement therefore also
needs to have a useful zero value which represents an empty mapping.
Change IdentityMapping to be a pass-by-value type so that there are no
nil pointers to worry about.
The functionality provided by the deprecated NewIDMappingsFromMaps
function is required by unit tests to to construct arbitrary
IdentityMapping values. And the daemon will always need to access the
mappings to pass them to the Linux kernel. Accommodate these use cases
by exporting the struct fields instead. BuildKit currently depends on
the UIDs and GIDs methods so we cannot get rid of them yet.
Signed-off-by: Cory Snider <csnider@mirantis.com>
These are used internally only, and set by daemon.NewDaemon(). If they're
used externally, we should add an accessor added (which may be something
we want to do for daemon.registryService (which should be its own backend)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This makes the function a bit more idiomatic, and leaves it to the caller to
decide wether or not the error can be ignored.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This was added in commits fc21bf280b and
0380fbff37 in support of LCOW, but was
now always set to runtime.GOOS.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
These logs were meant to be logged when starting the daemon. Moving the logs
to the daemon startup code (which also prints similar messages) instead of
having the images service log them.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
The `daemon.RawSysInfo()` function can be a heavy operation, as it collects
information about all cgroups on the host, networking, AppArmor, Seccomp, etc.
While looking at our code, I noticed that various parts in the code call this
function, potentially even _multiple times_ per container, for example, it is
called from:
- `verifyPlatformContainerSettings()`
- `oci.WithCgroups()` if the daemon has `cpu-rt-period` or `cpu-rt-runtime` configured
- in `ContainerDecoder.DecodeConfig()`, which is called on boith `container create` and `container commit`
Given that this information is not expected to change during the daemon's
lifecycle, and various information coming from this (such as seccomp and
apparmor status) was already cached, we may as well load it once, and cache
the results in the daemon instance.
This patch updates `daemon.RawSysInfo()` to use a `sync.Once()` so that
it's only executed once for the daemon's lifecycle.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
