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KEP-3857: Recursive Read-only (RRO) mounts #9787

Merged
merged 2 commits into from
Feb 21, 2024
Merged

KEP-3857: Recursive Read-only (RRO) mounts #9787

merged 2 commits into from
Feb 21, 2024

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AkihiroSuda
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@AkihiroSuda AkihiroSuda commented Feb 7, 2024 •
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Depends on:

Test depends on:

Implements:

Replaces:

Unlike PR #9713, this PR does not automatically upgrade RO mounts to RRO.

An example manifest:

apiVersion: v1
kind: Pod
metadata:
  name: rro
spec:
  volumes:
    - name: mnt
      hostPath:
        # tmpfs is mounted on /mnt/tmpfs
        path: /mnt
  containers:
    - name: busybox
      image: busybox
      args: ["sleep", "infinity"]
      volumeMounts:
        # /mnt-rro/tmpfs is not writable
        - name: mnt
          mountPath: /mnt-rro
          readOnly: true
          mountPropagation: None
          recursiveReadOnly: IfPossible
        # /mnt-ro/tmpfs is writable
        - name: mnt
          mountPath: /mnt-ro
          readOnly: true
        # /mnt-ro/tmpfs is writable
        - name: mnt
          mountPath: /mnt-rw

Requirements:

  • Feature gate "RecursiveReadOnlyMounts" to be enabled
  • Linux kernel >= 5.12
  • runc >= 1.1

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Skipping CI for Draft Pull Request.
If you want CI signal for your change, please convert it to an actual PR.
You can still manually trigger a test run with /test all

This was referenced Feb 7, 2024
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@AkihiroSuda AkihiroSuda force-pushed the cri-rro-kep-3857 branch 7 times, most recently from 2f412b1 to 70f2739 Compare February 8, 2024 13:31
This was referenced Feb 8, 2024
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@AkihiroSuda AkihiroSuda added the area/cri Container Runtime Interface (CRI) label Feb 9, 2024
@AkihiroSuda AkihiroSuda mentioned this pull request Feb 13, 2024
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@AkihiroSuda
script/test/utils.sh: readiness_check: print daemon log
83ad436 
Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
@AkihiroSuda AkihiroSuda marked this pull request as ready for review February 17, 2024 14:59
@AkihiroSuda AkihiroSuda added this to the 2.0 milestone Feb 17, 2024
rata
rata reviewed Feb 17, 2024
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@AkihiroSuda
KEP-3857: Recursive Read-only (RRO) mounts
9077d13 
See kubernetes/enhancements issue 3857 (PR 3858).

Replaces PR 9713 `cri: make read-only mounts recursively read-only`

Unlike PR 9713, this PR does not automatically upgrade RO mounts to RRO.

Test depends on:
- kubernetes-sigs/cri-tools PR 1344

Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
@AkihiroSuda AkihiroSuda requested review from rata and fuweid and removed request for rata February 18, 2024 15:51
fuweid
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LGTM

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estesp
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@AkihiroSuda AkihiroSuda requested a review from dmcgowan February 19, 2024 20:33
@estesp estesp added this pull request to the merge queue Feb 21, 2024
Merged via the queue into containerd:main with commit 8ce402c Feb 21, 2024
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@AkihiroSuda AkihiroSuda mentioned this pull request Mar 4, 2024
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@AkihiroSuda AkihiroSuda mentioned this pull request Nov 1, 2024
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Mengkzhaoyun pushed a commit to open-beagle/containerd that referenced this pull request Nov 11, 2024
Merge tag 'v2.0.0' into release-v2.0
2f44e98 
containerd 2.0.0

Welcome to the v2.0.0 release of containerd!

The first major release of containerd 2.x focuses on the continued stability of
containerd's core feature set with an easy upgrade from containerd 1.x. This
release includes the stabilization of new features added in the last 1.x release
as well as the removal of features which were deprecated in 1.x. The goal is to
support the vast community of containerd users well into the future along with
their ever increasing deployment footprints and variety of use cases.

See [containerd 2.0](https://github.com/containerd/containerd/blob/main/docs/containerd-2.0.md) documentation for details on what is new and has changed in this release.

* Allow sections of Plugins to be merged, and not overwritten as entire sections. ([#9982](containerd/containerd#9982))
* Add Update API for sandbox controller ([#9903](containerd/containerd#9903))
* Configure otel from env instead of config.toml ([#8970](containerd/containerd#8970))
* Enable NRI by default ([#9744](containerd/containerd#9744))
* Add PluginInfo to introspection API ([#9442](containerd/containerd#9442))
* Remove overlayfs volatile option on temp mounts ([#9555](containerd/containerd#9555))
* Expose usage of deprecated features ([#9258](containerd/containerd#9258))
* Use Intel ISA-L's igzip if available ([#9200](containerd/containerd#9200))
* Introduce top level config migration ([#9223](containerd/containerd#9223))
* Add image delete target ([#8989](containerd/containerd#8989))
* Remove `LimitNOFILE` from `containerd.service` ([#8924](containerd/containerd#8924))
* Add support for image expiration during garbage collection ([#9022](containerd/containerd#9022))
* Reduce the contention between ref lock and boltdb lock in content store ([#8792](containerd/containerd#8792))
* Remove "containerd.io/restart.logpath" label ([#8264](containerd/containerd#8264))
* Remove `aufs` snapshotter ([#8263](containerd/containerd#8263))
* Fix deadlock during NRI plugin registration ([containerd/nri#79](containerd/nri#79))
* Support arm64/v9 and minor variants ([containerd/platforms#8](containerd/platforms#8))
* Fix deadlock when writing to pipe blocks ([containerd/ttrpc#168](containerd/ttrpc#168))

* Generate attestation for artifacts during release ([#10543](containerd/containerd#10543))
* Remove `cri-containerd-*.tar.gz` release bundles ([#9096](containerd/containerd#9096))

* Use 'UserSpecifiedImage' from CRI to set the image-name annotation ([#10747](containerd/containerd#10747))
* Fine-grained SupplementalGroups control ([#9737](containerd/containerd#9737))
* Add support to set loopback to up ([#10238](containerd/containerd#10238))
* KEP-3857: Recursive Read-only (RRO) mounts ([#9787](containerd/containerd#9787))
* Add support for multiple subscribers to CRI container events ([#9661](containerd/containerd#9661))
* Enable CDI by default ([#9621](containerd/containerd#9621))
* Remove non-sandboxed CRI implementation ([#9228](containerd/containerd#9228))
* Add support for userns in stateless and stateful pods with idmap mounts (KEP-127, k8s >= 1.27) ([#8287](containerd/containerd#8287))
* Use sandboxed CRI by default ([#8994](containerd/containerd#8994))
* Implement RuntimeConfig CRI call ([#8722](containerd/containerd#8722))
* Add support for user namespaces (KEP-127) ([#8803](containerd/containerd#8803))
* Remove CRI v1alpha2 ([#8276](containerd/containerd#8276))

* Add api Go module and move all protos under api ([#10151](containerd/containerd#10151))
* Move packages based on contributing guide ([#9365](containerd/containerd#9365))
* Generalize plugin library ([#9214](containerd/containerd#9214))
* Use github.com/containerd/log ([#9086](containerd/containerd#9086))

* Support to syncfs after pull by using diff plugin ([#10284](containerd/containerd#10284))
* Skip "unknown" in image platform listing ([#10257](containerd/containerd#10257))
* Update unpacker to fetch all provided content ([#10202](containerd/containerd#10202))
* Enable Transfer service API to support plain HTTP ([#10024](containerd/containerd#10024))
* Enable Transfer service to use registry configuration directory ([#9908](containerd/containerd#9908))
* Disable the support for Schema 1 images ([#9765](containerd/containerd#9765))
* Update Transfer service to add OCI descriptors to Progress structure ([#9630](containerd/containerd#9630))
* Update import and export to allow references to missing content  ([#9554](containerd/containerd#9554))
* Add option to perform syncfs after pull ([#9401](containerd/containerd#9401))
* Add image verifier transfer service plugin system based on a binary directory ([#8493](containerd/containerd#8493))

* Implement  RuntimeStatus.features.supplemental_groups_policy from KEP-3619 ([#10410](containerd/containerd#10410))
* Add pprof to runc-shim ([#10242](containerd/containerd#10242))
* Provide runtime options in plugin info ([#10251](containerd/containerd#10251))
* Store bootstrap parameters in sandbox metadata ([#9736](containerd/containerd#9736))
* Update apparmor to allow confined runc to kill containers ([#10123](containerd/containerd#10123))
* Support vsock connection to task api ([#9738](containerd/containerd#9738))
* Update RuntimeDefault seccomp profile to disallow io_uring related syscalls ([#9320](containerd/containerd#9320))
* Switch runc shim to task service v3 and fix restore ([#9233](containerd/containerd#9233))
* Add sandboxer configuration and move sandbox controllers to plugins ([#8268](containerd/containerd#8268))
* Add annotations to CreateSandbox request ([#8960](containerd/containerd#8960))
* Add SandboxMetrics ([#8680](containerd/containerd#8680))
* Publish sandbox events ([#8602](containerd/containerd#8602))
* Remove the CriuPath field from runc's options ([#8279](containerd/containerd#8279))
* Remove `io.containerd.runtime.v1.linux` and `io.containerd.runc.v1` ([#8262](containerd/containerd#8262))

* [medium] RAPL accessible to a container [GHSA-7ww5-4wqc-m92c](GHSA-7ww5-4wqc-m92c)

* Remove `disable_cgroup` from CRI config ([#10594](containerd/containerd#10594))
* Disable the support for Schema 1 images ([#9765](containerd/containerd#9765))
* Update RuntimeDefault seccomp profile to disallow io_uring related syscalls ([#9320](containerd/containerd#9320))
* Move client to subpackage ([#9316](containerd/containerd#9316))
* Remove `LimitNOFILE` from `containerd.service` ([#8924](containerd/containerd#8924))
* Remove CRI v1alpha2 ([#8276](containerd/containerd#8276))
* Remove `io.containerd.runtime.v1.linux` and `io.containerd.runc.v1` ([#8262](containerd/containerd#8262))
* Remove "containerd.io/restart.logpath" label ([#8264](containerd/containerd#8264))
* Remove `aufs` snapshotter ([#8263](containerd/containerd#8263))

* Update warnings for deprecated CRI config fields ([#10509](containerd/containerd#10509))
* Add type alias for event Envelope ([#10279](containerd/containerd#10279))
* Postpone removal of deprecated CRI config properties ([#9966](containerd/containerd#9966))
* Deprecate go-plugin configuration option ([#9238](containerd/containerd#9238))
* CNI conf_template in CRI is no longer deprecated ([#8637](containerd/containerd#8637))

Please try out the release binaries and report any issues at
https://github.com/containerd/containerd/issues.

* Derek McGowan
* Akihiro Suda
* Maksym Pavlenko
* Wei Fu
* Phil Estes
* Sebastiaan van Stijn
* Samuel Karp
* Krisztian Litkey
* Kazuyoshi Kato
* Austin Vazquez
* Rodrigo Campos
* Danny Canter
* Abel Feng
* Mike Brown
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* **dario.cat/mergo**                                                              v1.0.1 **_new_**
* **github.com/AdaLogics/go-fuzz-headers**                                         1f10f66a31bf -> e8a1dd7889d6
* **github.com/AdamKorcz/go-118-fuzz-build**                                       5330a85ea652 -> 2b5cbb29f3e2
* **github.com/Microsoft/go-winio**                                                v0.6.0 -> v0.6.2
* **github.com/Microsoft/hcsshim**                                                 v0.10.0-rc.7 -> v0.12.9
* **github.com/cenkalti/backoff/v4**                                               v4.2.0 -> v4.3.0
* **github.com/cespare/xxhash/v2**                                                 v2.2.0 -> v2.3.0
* **github.com/checkpoint-restore/checkpointctl**                                  v1.3.0 **_new_**
* **github.com/checkpoint-restore/go-criu/v7**                                     v7.2.0 **_new_**
* **github.com/cilium/ebpf**                                                       v0.9.1 -> v0.11.0
* **github.com/containerd/cgroups/v3**                                             v3.0.1 -> v3.0.3
* **github.com/containerd/console**                                                v1.0.3 -> v1.0.4
* **github.com/containerd/containerd/api**                                         v1.8.0 **_new_**
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* **github.com/containerd/errdefs**                                                v1.0.0 **_new_**
* **github.com/containerd/errdefs/pkg**                                            v0.3.0 **_new_**
* **github.com/containerd/go-cni**                                                 v1.1.9 -> v1.1.10
* **github.com/containerd/go-runc**                                                v1.0.0 -> v1.1.0
* **github.com/containerd/imgcrypt/v2**                                            v2.0.0-rc.1 **_new_**
* **github.com/containerd/log**                                                    v0.1.0 **_new_**
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* **github.com/containerd/otelttrpc**                                              ea5083fda723 **_new_**
* **github.com/containerd/platforms**                                              v1.0.0-rc.0 **_new_**
* **github.com/containerd/plugin**                                                 v1.0.0 **_new_**
* **github.com/containerd/ttrpc**                                                  v1.2.1 -> v1.2.6
* **github.com/containerd/typeurl/v2**                                             v2.1.0 -> v2.2.2
* **github.com/containerd/zfs/v2**                                                 v2.0.0-rc.0 **_new_**
* **github.com/containernetworking/cni**                                           v1.1.2 -> v1.2.3
* **github.com/containernetworking/plugins**                                       v1.2.0 -> v1.5.1
* **github.com/containers/ocicrypt**                                               v1.1.6 -> v1.2.0
* **github.com/cpuguy83/go-md2man/v2**                                             v2.0.2 -> v2.0.5
* **github.com/davecgh/go-spew**                                                   v1.1.1 -> d8f796af33cc
* **github.com/distribution/reference**                                            v0.6.0 **_new_**
* **github.com/emicklei/go-restful/v3**                                            v3.10.1 -> v3.11.0
* **github.com/felixge/httpsnoop**                                                 v1.0.4 **_new_**
* **github.com/fsnotify/fsnotify**                                                 v1.6.0 -> v1.7.0
* **github.com/fxamacker/cbor/v2**                                                 v2.7.0 **_new_**
* **github.com/go-jose/go-jose/v4**                                                v4.0.4 **_new_**
* **github.com/go-logr/logr**                                                      v1.2.3 -> v1.4.2
* **github.com/golang/protobuf**                                                   v1.5.2 -> v1.5.4
* **github.com/google/go-cmp**                                                     v0.5.9 -> v0.6.0
* **github.com/google/uuid**                                                       v1.3.0 -> v1.6.0
* **github.com/gorilla/websocket**                                                 v1.5.0 **_new_**
* **github.com/grpc-ecosystem/go-grpc-middleware/providers/prometheus**            v1.0.1 **_new_**
* **github.com/grpc-ecosystem/go-grpc-middleware/v2**                              v2.1.0 **_new_**
* **github.com/grpc-ecosystem/grpc-gateway/v2**                                    v2.7.0 -> v2.22.0
* **github.com/intel/goresctrl**                                                   v0.3.0 -> v0.8.0
* **github.com/klauspost/compress**                                                v1.16.0 -> v1.17.11
* **github.com/mdlayher/socket**                                                   v0.4.1 **_new_**
* **github.com/mdlayher/vsock**                                                    v1.2.1 **_new_**
* **github.com/mistifyio/go-zfs/v3**                                               v3.0.1 **_new_**
* **github.com/moby/spdystream**                                                   v0.2.0 -> v0.4.0
* **github.com/moby/sys/mountinfo**                                                v0.6.2 -> v0.7.2
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* **github.com/moby/sys/user**                                                     v0.3.0 **_new_**
* **github.com/moby/sys/userns**                                                   v0.1.0 **_new_**
* **github.com/munnerz/goautoneg**                                                 a7dc8b61c822 **_new_**
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* **github.com/pmezard/go-difflib**                                                v1.0.0 -> 5d4384ee4fb2
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* **github.com/vishvananda/netlink**                                               v1.2.1-beta.2 -> v1.3.0
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* **go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp**                v0.56.0 **_new_**
* **go.opentelemetry.io/otel**                                                     v1.14.0 -> v1.31.0
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* **golang.org/x/crypto**                                                          v0.1.0 -> v0.28.0
* **golang.org/x/exp**                                                             aacd6d4b4611 **_new_**
* **golang.org/x/mod**                                                             v0.7.0 -> v0.21.0
* **golang.org/x/net**                                                             v0.7.0 -> v0.30.0
* **golang.org/x/oauth2**                                                          v0.4.0 -> v0.22.0
* **golang.org/x/sync**                                                            v0.1.0 -> v0.8.0
* **golang.org/x/sys**                                                             v0.6.0 -> v0.26.0
* **golang.org/x/term**                                                            v0.5.0 -> v0.25.0
* **golang.org/x/text**                                                            v0.7.0 -> v0.19.0
* **golang.org/x/time**                                                            90d013bbcef8 -> v0.3.0
* **google.golang.org/genproto/googleapis/api**                                    5fefd90f89a9 **_new_**
* **google.golang.org/genproto/googleapis/rpc**                                    324edc3d5d38 **_new_**
* **google.golang.org/grpc**                                                       v1.53.0 -> v1.67.1
* **google.golang.org/protobuf**                                                   v1.28.1 -> v1.35.1
* **k8s.io/api**                                                                   v0.26.2 -> v0.31.2
* **k8s.io/apimachinery**                                                          v0.26.2 -> v0.31.2
* **k8s.io/apiserver**                                                             v0.26.2 -> v0.31.2
* **k8s.io/client-go**                                                             v0.26.2 -> v0.31.2
* **k8s.io/component-base**                                                        v0.26.2 -> v0.31.2
* **k8s.io/cri-api**                                                               v0.26.2 -> v0.31.2
* **k8s.io/klog/v2**                                                               v2.90.1 -> v2.130.1
* **k8s.io/kubelet**                                                               v0.31.2 **_new_**
* **k8s.io/utils**                                                                 a5ecb0141aa5 -> 18e509b52bc8
* **sigs.k8s.io/json**                                                             f223a00ba0e2 -> bc3834ca7abd
* **sigs.k8s.io/structured-merge-diff/v4**                                         v4.2.3 -> v4.4.1
* **sigs.k8s.io/yaml**                                                             v1.3.0 -> v1.4.0
* **tags.cncf.io/container-device-interface**                                      v0.8.0 **_new_**
* **tags.cncf.io/container-device-interface/specs-go**                             v0.8.0 **_new_**

Previous release can be found at [v1.7.0](https://github.com/containerd/containerd/releases/tag/v1.7.0)
* `containerd-<VERSION>-<OS>-<ARCH>.tar.gz`:         ✅Recommended. Dynamically linked with glibc 2.31 (Ubuntu 20.04).
* `containerd-static-<VERSION>-<OS>-<ARCH>.tar.gz`:  Statically linked. Expected to be used on non-glibc Linux distributions. Not position-independent.

In addition to containerd, typically you will have to install [runc](https://github.com/opencontainers/runc/releases)
and [CNI plugins](https://github.com/containernetworking/plugins/releases) from their official sites too.

See also the [Getting Started](https://github.com/containerd/containerd/blob/main/docs/getting-started.md) documentation.
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@rata rata rata left review comments

@fuweid fuweid fuweid approved these changes

@estesp estesp estesp approved these changes

@dmcgowan dmcgowan dmcgowan approved these changes

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@AkihiroSuda @k8s-ci-robot @rata @dmcgowan @estesp @fuweid