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rootless: graduate from experimental

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Close #40484

Note that the support for cgroup v2 isn't ready for production yet,
regardless to rootful or rootless.

Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
This commit is contained in:
Akihiro Suda 2020-03-10 11:36:30 +09:00
parent 5a685dc7e4
commit 5ca47f5179
5 changed files with 13 additions and 24 deletions
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22
cmd/dockerd/daemon.go
View file

@ -102,20 +102,18 @@ func (cli *DaemonCli) start(opts *daemonOptions) (err error) {
if cli.Config.Experimental { if cli.Config.Experimental {
logrus.Warn("Running experimental build") logrus.Warn("Running experimental build")
if cli.Config.IsRootless() { }
logrus.Warn("Running in rootless mode. Cgroups, AppArmor, and CRIU are disabled.")
} if cli.Config.IsRootless() {
if rootless.RunningWithRootlessKit() { logrus.Warn("Running in rootless mode. This mode has feature limitations.")
logrus.Info("Running with RootlessKit integration") }
if !cli.Config.IsRootless() { if rootless.RunningWithRootlessKit() {
return fmt.Errorf("rootless mode needs to be enabled for running with RootlessKit") logrus.Info("Running with RootlessKit integration")
} if !cli.Config.IsRootless() {
} return fmt.Errorf("rootless mode needs to be enabled for running with RootlessKit")
} else {
if cli.Config.IsRootless() {
return fmt.Errorf("rootless mode is supported only when running in experimental mode")
} }
} }
// return human-friendly error before creating files // return human-friendly error before creating files
if runtime.GOOS == "linux" && os.Geteuid() != 0 { if runtime.GOOS == "linux" && os.Geteuid() != 0 {
return fmt.Errorf("dockerd needs to be started with root. To see how to run dockerd in rootless mode with unprivileged user, see the documentation") return fmt.Errorf("dockerd needs to be started with root. To see how to run dockerd in rootless mode with unprivileged user, see the documentation")

5
contrib/dockerd-rootless.sh
View file

@ -1,8 +1,7 @@
#!/bin/sh #!/bin/sh
# dockerd-rootless.sh executes dockerd in rootless mode. # dockerd-rootless.sh executes dockerd in rootless mode.
# #
# Usage: dockerd-rootless.sh --experimental [DOCKERD_OPTIONS] # Usage: dockerd-rootless.sh [DOCKERD_OPTIONS]
# Currently, specifying --experimental is mandatory.
# #
# External dependencies: # External dependencies:
# * newuidmap and newgidmap needs to be installed. # * newuidmap and newgidmap needs to be installed.
@ -11,7 +10,7 @@
# slirp4netns is used by default if installed. Otherwise fallsback to VPNKit. # slirp4netns is used by default if installed. Otherwise fallsback to VPNKit.
# The default value can be overridden with $DOCKERD_ROOTLESS_ROOTLESSKIT_NET=(slirp4netns|vpnkit|lxc-user-nic) # The default value can be overridden with $DOCKERD_ROOTLESS_ROOTLESSKIT_NET=(slirp4netns|vpnkit|lxc-user-nic)
# #
# See the documentation for the further information. # See the documentation for the further information: https://docs.docker.com/engine/security/rootless/
set -e -x set -e -x
if ! [ -w $XDG_RUNTIME_DIR ]; then if ! [ -w $XDG_RUNTIME_DIR ]; then

4
hack/make/.integration-daemon-start
View file

@ -65,10 +65,6 @@ fi
dockerd="dockerd" dockerd="dockerd"
if [ -n "$DOCKER_ROOTLESS" ]; then if [ -n "$DOCKER_ROOTLESS" ]; then
if [ -z "$DOCKER_EXPERIMENTAL" ]; then
echo >&2 '# DOCKER_ROOTLESS requires DOCKER_EXPERIMENTAL to be set'
exit 1
fi
if [ -z "$TEST_SKIP_INTEGRATION_CLI" ]; then if [ -z "$TEST_SKIP_INTEGRATION_CLI" ]; then
echo >&2 '# DOCKER_ROOTLESS requires TEST_SKIP_INTEGRATION_CLI to be set' echo >&2 '# DOCKER_ROOTLESS requires TEST_SKIP_INTEGRATION_CLI to be set'
exit 1 exit 1

4
hack/make/run
View file

@ -39,10 +39,6 @@ fi
dockerd="dockerd" dockerd="dockerd"
socket=/var/run/docker.sock socket=/var/run/docker.sock
if [ -n "$DOCKER_ROOTLESS" ]; then if [ -n "$DOCKER_ROOTLESS" ]; then
if [ -z "$DOCKER_EXPERIMENTAL" ]; then
echo >&2 '# DOCKER_ROOTLESS requires DOCKER_EXPERIMENTAL to be set'
exit 1
fi
user="unprivilegeduser" user="unprivilegeduser"
uid=$(id -u $user) uid=$(id -u $user)
# shellcheck disable=SC2174 # shellcheck disable=SC2174

2
testutil/daemon/daemon.go
View file

@ -204,7 +204,7 @@ func New(t testing.TB, ops ...Option) *Daemon {
t.Skip("DOCKER_ROOTLESS doesn't support DOCKER_USERLANDPROXY=false") t.Skip("DOCKER_ROOTLESS doesn't support DOCKER_USERLANDPROXY=false")
} }
} }
ops = append(ops, WithRootlessUser("unprivilegeduser"), WithExperimental()) ops = append(ops, WithRootlessUser("unprivilegeduser"))
} }
d, err := NewDaemon(dest, ops...) d, err := NewDaemon(dest, ops...)