- Addresses slow cross-platform builds from #68.
- The shim wasn't doing everything needed to ensure the use of Rosetta for
`container build`. The new shim adds an `--enable-qemu` option that
controls whether `buildkit-qemu-emulator-x86_64 is available; when it is
not available, buildkitd will attempt to build natively, meaning Rosetta
will execute amd64 binaries.
Currently, when `FileDownloader.downloadFile()` encounters an error
during `client.execute()` (e.g., XPC connection interruption or network
timeout), the `HTTPClient` instance is deallocated without calling
`shutdown()`, resulting in a crash:
`AsyncHTTPClient/HTTPClient.swift:187: Fatal error: Client not shut down
before the deinit.`
This caused to a control flow issue when attempting to download the
default kernel during `container system start` and, under certain
conditions (e.g., network latency), encountering the timeout error
`HTTPClientError.connectTimeout`.
To address this, `client.execute()` is now wrapped in a do/catch to
ensure `shutdown()` is always called on both success and error paths.
Also I've added an explicit timeout configuration (30s connect, no read
timeout) to better accommodate large file downloads.
- In Alpine Linux containers (commonly used as Docker base images),
standard DNS resolution is provided by **musl**, a lightweight C
standard library (libc). Musl implements DNS lookups via
`getaddrinfo()`, which queries AAAA (IPv6) records first.
- Problem: DNS did not work correctly **inside containers**. Any
system command attempting to resolve hostnames
(e.g., `ping dynamodb-admin`) **failed** when the DNS server
responded NXDOMAIN for AAAA records, even if A (IPv4) records
existed. Explicitly forcing IPv4 (`ping -4dynamodb-admin`) worked
correctly, showing the issue is specific to musl’s IPv6-first behavior.
- Consequence: In IPv4-only environments, Alpine-based containers
cannot resolve hostnames using standard tools or libraries.
Applications relying on `getaddrinfo()` fail with ENOTFOUND,
breaking networking and inter-container communication.
- Root cause: Following RFC 8305 / RFC 6724, musl treats NXDOMAIN
for AAAA as “hostname does not exist” and does not fallback to A
(IPv4) records.
- Fix: The Apple Container DNS engine now behaves as follows:
* If an **A record exists**, AAAA queries return **NOERROR with empty
answer (NODATA)**.
* If neither **A nor AAAA** exist, NXDOMAIN is returned.
This ensures that Alpine-based containers in IPv4-only networks can
correctly resolve hostnames inside containers without modifying
container images or application code.
- Fixes#736.
- BuildKit returns nil ref for Dockerfiles containing only metadata
(`ENV/ARG/LABEL`) directives without filesystem operations
(`RUN/COPY/ADD`). Previously, this caused builds to fail with "no build
directives" error.
- Builder-shim 0.6.3 [fixes this](https://github.com/apple/container-builder-shim/pull/47) by
creating a minimal marker layer when ref is nil but image config is
valid, satisfying OCI manifest requirements.
- Also, added some tests for this behavior.
- Closes#752.
- Currently, there is no way to specify a custom MAC address for a
container's network interface and the MAC address is auto-generated by
the system.
- Use Cases
- **Network Testing**: Developers testing network-dependent applications
that need predictable MAC addresses
- **License Management**: Running containerized software with MAC-based
license keys
- **Network Automation**: Scripts and tools that expect specific MAC
addresses for configuration
- **Debugging**: Consistent MAC addresses across container restarts for
easier troubleshooting
Closes#782#99
If a Dockerfile can't be found in the context dir, check for the common
alternative Containerfile. This does not implement .containerignore
also, solely Containerfile for now. This also funnily enough fixes us
not checking for the Dockerfile IN the context directory.. woops.
## Type of Change
- [x] Bug fix
- [x] New feature
- [ ] Breaking change
- [ ] Documentation update
## Testing
- [x] Tested locally
- [x] Added/updated tests
- [x] Added/updated docs
- Closes#508.
## Type of Change
- [ ] Bug fix
- [x] New feature
- [ ] Breaking change
- [ ] Documentation update
## Motivation and Context
Adds a `container volume prune` command that removes volumes with no
container references and reports the amount of disk space reclaimed.
This helps users clean up unused volumes and easily reclaim disk space.
Also updates the `volume delete` documentation to clarify and highlight
how the `--all` flag works.
## Testing
- [x] Tested locally
- [x] Added/updated tests
- [x] Added/updated docs
Fixes#772
Today it fails in bootstrap the second go around, and we also have an
error handler that automatically cleans up the container if bootstrap
failed which is even worse. This change short circuits us first in the
cli if the state is running when we get() the container, and also adds
in a clause to bootstrap to just early return if we already have a
client.
Reverts apple/container#741
The action does not have permissions to add labels. Reverting this while
we investigate the right fix
@Ronitsabhaya75 heads up
## Type of Change
- [ ] New feature : This can help dev teams to particularly look on
those things are differently and understand what has been changed
through labels
@dcantah can you please review this pr and suggest me if any changes
require
---------
Signed-off-by: Kathryn Baldauf <k_baldauf@apple.com>
Co-authored-by: Kathryn Baldauf <k_baldauf@apple.com>
Co-authored-by: Bisman Sahni <139563284+bismansahni@users.noreply.github.com>
Co-authored-by: J Logan <john_logan@apple.com>
Fix 2 HTML errors:
1) Start tag seen without seeing a doctype first. Expected <!DOCTYPE
html>.
2) Element head is missing a required instance of child element title.
- Closes#690.
## Type of Change
- [ ] Bug fix
- [x] New feature
- [ ] Breaking change
- [ ] Documentation update
## Motivation and Context
Named volumes are now implicitly created when referenced in container
commands. So, if `myvolume` doesn't exist and you run `container run -v
myvolume:/data alpine`, it is automatically created.
## Testing
- [x] Tested locally
- [x] Added/updated tests
- [x] Added/updated docs
## Type of Change
- [x] Bug fix
## Motivation and Context
Required for builder to run correctly with bug fix in containerization
here https://github.com/apple/containerization/pull/329. Builder was
previously not passing any environment variables when starting the
initial process.
## Testing
- [x] Tested locally
---------
Signed-off-by: Kathryn Baldauf <k_baldauf@apple.com>
To facilitate ability to gather code coverage metrics without slowing
down our integration target, let's add a coverage target.
From this we can run `xcrun llvm-profdata merge` to get profdata and
gather overall code coverage metrics
## Type of Change
- [ ] Bug fix
- [x] New feature
- [ ] Breaking change
- [ ] Documentation update
## Motivation and Context
[Why is this change needed?]
## Testing
- [x] Tested locally
- [ ] Added/updated tests
- [ ] Added/updated docs
Signed-off-by: Eric Ernst <eric_ernst@apple.com>
Closes#416.
## Type of Change
- [ ] Bug fix
- [ ] New feature
- [x] Breaking change (possibly, I would think we're just going to leave
an unused `.build` directory behind which we can document, but can run
more tests next week).
- [ ] Documentation update
## Motivation and Context
We have nothing to hide?
## Testing
- [x] Tested locally
- [ ] Added/updated tests
- [ ] Added/updated docs
Closes#691
Any envvars that had equal signs in the value would be ommitted today.
This change brings it much more in line with docker's behavior/parser
and adds unit tests to verify this is the case.
J Logan