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Merge pull request #3934 from AkihiroSuda/ctr-address-env

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ctr: support $CONTAINERD_ADDRESS env var
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Phil Estes 2020-01-07 09:14:48 -05:00 committed by GitHub
commit da2890a908
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2 changed files with 7 additions and 5 deletions
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1
cmd/ctr/app/main.go
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@ -81,6 +81,7 @@ containerd CLI
Name: "address, a",
Usage: "address for containerd's GRPC server",
Value: defaults.DefaultAddress,
EnvVar: "CONTAINERD_ADDRESS",
},
cli.DurationFlag{
Name: "timeout",

5
docs/rootless.md
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@ -33,9 +33,10 @@ state = "/run/user/1001/containerd"
A client program such as `ctr` also needs to be executed inside the daemon namespaces.
```console
$ nsenter -U --preserve-credentials -m -n -t $(cat /run/user/1001/rootlesskit-containerd/child_pid)
$ export CONTAINERD_ADDRESS=/run/user/1001/containerd/containerd.sock
$ export CONTAINERD_SNAPSHOTTER=native
$ ctr -a /run/user/1001/containerd/containerd.sock pull docker.io/library/ubuntu:latest
$ ctr -a /run/user/1001/containerd/containerd.sock run -t --rm --fifo-dir /tmp/foo-fifo --cgroup "" docker.io/library/ubuntu:latest foo
$ ctr images pull docker.io/library/ubuntu:latest
$ ctr run -t --rm --fifo-dir /tmp/foo-fifo --cgroup "" docker.io/library/ubuntu:latest foo
```
* `overlayfs` snapshotter does not work inside user namespaces, except on Ubuntu kernel