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dockerd-rootless.sh: set rootlesskit --state-dir=DIR

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Now the state dir is set to `${XDG_RUNTIME_DIR}/dockerd-rootless`.

This is similar to `${XDG_RUNTIME_DIR}/containerd-rootless` used in nerdctl:
https://github.com/containerd/nerdctl/blob/v1.7.2/extras/rootless/containerd-rootless.sh#L35

Prior to this commit, the state dir was unset and a random dir under `/tmp` was used.
(e.g., `/tmp/rootlesskit1869901982`)

Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
This commit is contained in:
Akihiro Suda 2024-01-16 23:56:04 +09:00
parent ae9fbcb82c
commit 7d08d84b03
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1 changed files with 3 additions and 0 deletions
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3
contrib/dockerd-rootless.sh
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@ -9,6 +9,7 @@
# * Either one of slirp4netns (>= v0.4.0), VPNKit, lxc-user-nic needs to be installed.
#
# Recognized environment variables:
# * DOCKERD_ROOTLESS_ROOTLESSKIT_STATE_DIR=DIR: the rootlesskit state dir. Defaults to "$XDG_RUNTIME_DIR/dockerd-rootless".
# * DOCKERD_ROOTLESS_ROOTLESSKIT_NET=(slirp4netns|vpnkit|pasta|lxc-user-nic): the rootlesskit network driver. Defaults to "slirp4netns" if slirp4netns (>= v0.4.0) is installed. Otherwise defaults to "vpnkit".
# * DOCKERD_ROOTLESS_ROOTLESSKIT_MTU=NUM: the MTU value for the rootlesskit network driver. Defaults to 65520 for slirp4netns, 1500 for other drivers.
# * DOCKERD_ROOTLESS_ROOTLESSKIT_PORT_DRIVER=(builtin|slirp4netns|implicit): the rootlesskit port driver. Defaults to "builtin".
@ -64,6 +65,7 @@ if [ -z "$rootlesskit" ]; then
exit 1
fi
: "${DOCKERD_ROOTLESS_ROOTLESSKIT_STATE_DIR:=$XDG_RUNTIME_DIR/dockerd-rootless}"
: "${DOCKERD_ROOTLESS_ROOTLESSKIT_NET:=}"
: "${DOCKERD_ROOTLESS_ROOTLESSKIT_MTU:=}"
: "${DOCKERD_ROOTLESS_ROOTLESSKIT_PORT_DRIVER:=builtin}"
@ -119,6 +121,7 @@ if [ -z "$_DOCKERD_ROOTLESS_CHILD" ]; then
# (by either systemd-networkd or NetworkManager)
# * /run: copy-up is required so that we can create /run/docker (hardcoded for plugins) in our namespace
exec $rootlesskit \
--state-dir=$DOCKERD_ROOTLESS_ROOTLESSKIT_STATE_DIR \
--net=$net --mtu=$mtu \
--slirp4netns-sandbox=$DOCKERD_ROOTLESS_ROOTLESSKIT_SLIRP4NETNS_SANDBOX \
--slirp4netns-seccomp=$DOCKERD_ROOTLESS_ROOTLESSKIT_SLIRP4NETNS_SECCOMP \