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Containerd uses the last error message sent to the log to
print as failure cause for create/exec. This required a
few changes in the logging logic for runsc:
- cmd.Errorf/Fatalf: now writes a message with 'error'
level to containerd log, in addition to stderr and
debug logs, like before.
- log.Infof/Warningf/Fatalf: are not sent to containerd
log anymore. They are mostly used for debugging and not
useful to containerd. In most cases, --debug-log is
enabled and this avoids the logs messages from being
duplicated.
- stderr is not used as default log destination anymore.
Some commands assume stdio is for the container/process
running inside the sandbox and it's better to never use
it for logging. By default, logs are supressed now.
PiperOrigin-RevId: 251881815
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Fatalf calls os.Exit and a process exits without calling defer callbacks.
Should we do this for other runsc commands?
PiperOrigin-RevId: 249776310
Change-Id: If9d8b54d0ae37db443895906eb33bd9e9b600cc9
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Based on the guidelines at
https://opensource.google.com/docs/releasing/authors/.
1. $ rg -l "Google LLC" | xargs sed -i 's/Google LLC.*/The gVisor Authors./'
2. Manual fixup of "Google Inc" references.
3. Add AUTHORS file. Authors may request to be added to this file.
4. Point netstack AUTHORS to gVisor AUTHORS. Drop CONTRIBUTORS.
Fixes #209
PiperOrigin-RevId: 245823212
Change-Id: I64530b24ad021a7d683137459cafc510f5ee1de9
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PiperOrigin-RevId: 230437407
Change-Id: Id9d8ceeb018aad2fe317407c78c6ee0f4b47aa2b
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In this case, new mounts are not created in the host mount namspaces, so
tearDownChroot isn't needed, because chroot will be destroyed with a
sandbox mount namespace.
In additional, pivot_root can't be called instead of chroot.
PiperOrigin-RevId: 229250871
Change-Id: I765bdb587d0b8287a6a8efda8747639d37c7e7b6
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PiperOrigin-RevId: 217951017
Change-Id: Ie08bf6987f98467d07457bcf35b5f1ff6e43c035
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Some tests check current capabilities and re-run the tests as root inside
userns if required capabibilities are missing. It was checking for
CAP_SYS_ADMIN only, CAP_SYS_CHROOT is also required now.
PiperOrigin-RevId: 214949226
Change-Id: Ic81363969fa76c04da408fae8ea7520653266312
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Closes #66
PiperOrigin-RevId: 202496258
Change-Id: Ib9287c5bf1279ffba1db21ebd9e6b59305cddf34
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PiperOrigin-RevId: 199808391
Change-Id: Ib37a4fb6193dc85c1f93bc16769d6aa41854b9d4
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This is a necessary prerequisite for supporting multiple containers in a single
sandbox.
All the commands (in cmd package) now call operations on Containers (container
package). When a Container first starts, it will create a Sandbox with the same
ID.
The Sandbox class is now simpler, as it only knows how to create boot/gofer
processes, and how to forward commands into the running boot process.
There are TODOs sprinkled around for additional support for multiple
containers. Most notably, we need to detect when a container is intended to run
in an existing sandbox (by reading the metadata), and then have some way to
signal to the sandbox to start a new container. Other urpc calls into the
sandbox need to pass the container ID, so the sandbox can run the operation on
the given container. These are only half-plummed through right now.
PiperOrigin-RevId: 196688269
Change-Id: I1ecf4abbb9dd8987a53ae509df19341aaf42b5b0
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PiperOrigin-RevId: 194583126
Change-Id: Ica1d8821a90f74e7e745962d71801c598c652463
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