When this was called concurrently from the moby image
exporter there could be a data race where a layer was
written to the refs map when it was already there.
In that case the reference count got mixed up and on
release only one of these layers was actually released.
Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
The only use is in `builder/builder-next/adapters/snapshot.EnsureLayer()`,
which always calls the function with an _empty_ `oldTarDataPath`;
7082aecd54/builder/builder-next/adapters/snapshot/layer.go (L81)
When called with an empty `oldTarDataPath`, this function was an alias for
`checksumForGraphIDNoTarsplit`, so let's make it that.
Note that this code was added in 500e77bad0, as
part of the migration from "v1" images to "v2" (content-addressable) images.
Given that the remaining code lives in a "migration" file, possibly more code
can be removed.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
The github.com/containerd/containerd/log package was moved to a separate
module, which will also be used by upcoming (patch) releases of containerd.
This patch moves our own uses of the package to use the new module.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
With BuildKit 0.12, some existing types are now required to be wrapped
by new types:
* containerd's LeaseManager and ContentStore have to be a
(namespace-aware) BuildKit type since f044e0a946
* BuildKit's solver.CacheManager is used instead of
bboltstorage.CacheKeyStorage since 2b30693409
* The MaxAge config field is a bkconfig.Duration since e06c96274f
Signed-off-by: Bjorn Neergaard <bjorn.neergaard@docker.com>
The signatures of functions in containerd's errdefs packages are very
similar to those in our own, and it's easy to accidentally use the wrong
package.
This patch uses a consistent alias for all occurrences of this import.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This utility wasn't very related to all other utilities in pkg/ioutils.
Moving it to longpath to also make it more clear what it does.
It looks like there's only a single (public) external consumer of this
utility, and only used in a test, and it's not 100% clear if it was
intentional to use our package, of if it was a case of "I actually meant
`io/ioutil.MkdirTemp`" so we could consider skipping the alias.
While moving the package, I also renamed `TempDir` to `MkdirTemp`, which
is the signature it matches in "os" from stdlib.
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>
I think this was there for historic reasons (may have been goimports expected
this, and we used to have a linter that wanted it), but it's not needed, so
let's remove it (to make my IDE less complaining about unneeded aliases).
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
None of the implementations used return an error, so removing the error
return can simplify using these.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
After switch to leases all ref IDs use generated IDs meaning that
EnsureLayer hack needs to save the chainID for pulled layers.
Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
full diff: 8818c67cff...v0.5.0
- moby/buildkit#909 exporter: support unpack opt for image exporter
- moby/buildkit#961 dockerfile: allow subdirs for remote contexts
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
