5f5d954b6a
This allows an admin to set the upper bounds on the category range for selinux labels. This can be useful when handling allocation of PVs or other volume types that need to be shared with selinux enabled on the hosts and volumes. Signed-off-by: Michael Crosby <michael@thepasture.io>
73 lines
2.3 KiB
Go
73 lines
2.3 KiB
Go
// +build !windows
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/*
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Copyright The containerd Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package server
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import (
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"github.com/containerd/containerd/sys"
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cni "github.com/containerd/go-cni"
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"github.com/opencontainers/selinux/go-selinux"
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"github.com/pkg/errors"
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"github.com/sirupsen/logrus"
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)
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// networkAttachCount is the minimum number of networks the PodSandbox
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// attaches to
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const networkAttachCount = 2
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// initPlatform handles linux specific initialization for the CRI service.
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func (c *criService) initPlatform() error {
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var err error
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if sys.RunningInUserNS() {
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if !(c.config.DisableCgroup && !c.apparmorEnabled() && c.config.RestrictOOMScoreAdj) {
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logrus.Warn("Running containerd in a user namespace typically requires disable_cgroup, disable_apparmor, restrict_oom_score_adj set to be true")
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}
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}
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if c.config.EnableSelinux {
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if !selinux.GetEnabled() {
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logrus.Warn("Selinux is not supported")
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}
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if r := c.config.SelinuxCategoryRange; r > 0 {
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selinux.CategoryRange = uint32(r)
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}
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} else {
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selinux.SetDisabled()
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}
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// Pod needs to attach to at least loopback network and a non host network,
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// hence networkAttachCount is 2. If there are more network configs the
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// pod will be attached to all the networks but we will only use the ip
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// of the default network interface as the pod IP.
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c.netPlugin, err = cni.New(cni.WithMinNetworkCount(networkAttachCount),
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cni.WithPluginConfDir(c.config.NetworkPluginConfDir),
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cni.WithPluginMaxConfNum(c.config.NetworkPluginMaxConfNum),
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cni.WithPluginDir([]string{c.config.NetworkPluginBinDir}))
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if err != nil {
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return errors.Wrap(err, "failed to initialize cni")
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}
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return nil
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}
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// cniLoadOptions returns cni load options for the linux.
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func (c *criService) cniLoadOptions() []cni.CNIOpt {
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return []cni.CNIOpt{cni.WithLoNetwork, cni.WithDefaultConf}
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}
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