62f98a1c11
In the CRI server initialization a syncgroup is setup that adds to the counter for every cni config found/registered. This functions on platforms where CNI is supported/theres an assumption that there will always be the loopback config. However, on platforms like Darwin where there's generally nothing registered the Wait() on the syncgroup returns immediately and the channel used to return any Network config sync errors is closed. This channel is one of three that's used to monitor if we should Close the CRI service in containerd, so it's not great if this happens. Signed-off-by: Danny Canter <danny@dcantah.dev>
70 lines
2.1 KiB
Go
70 lines
2.1 KiB
Go
/*
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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 sbserver
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import (
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"fmt"
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"github.com/containerd/go-cni"
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)
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// windowsNetworkAttachCount is the minimum number of networks the PodSandbox
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// attaches to
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const windowsNetworkAttachCount = 1
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// initPlatform handles windows specific initialization for the CRI service.
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func (c *criService) initPlatform() error {
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pluginDirs := map[string]string{
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defaultNetworkPlugin: c.config.NetworkPluginConfDir,
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}
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for name, conf := range c.config.Runtimes {
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if conf.NetworkPluginConfDir != "" {
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pluginDirs[name] = conf.NetworkPluginConfDir
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}
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}
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c.netPlugin = make(map[string]cni.CNI)
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for name, dir := range pluginDirs {
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max := c.config.NetworkPluginMaxConfNum
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if name != defaultNetworkPlugin {
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if m := c.config.Runtimes[name].NetworkPluginMaxConfNum; m != 0 {
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max = m
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}
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}
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// For windows, the loopback network is added as default.
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// There is no need to explicitly add one hence networkAttachCount is 1.
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// If there are more network configs the pod will be attached to all the
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// networks but we will only use the ip of the default network interface
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// as the pod IP.
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i, err := cni.New(cni.WithMinNetworkCount(windowsNetworkAttachCount),
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cni.WithPluginConfDir(dir),
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cni.WithPluginMaxConfNum(max),
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cni.WithPluginDir([]string{c.config.NetworkPluginBinDir}))
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if err != nil {
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return fmt.Errorf("failed to initialize cni: %w", err)
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}
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c.netPlugin[name] = i
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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 windows.
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func (c *criService) cniLoadOptions() []cni.Opt {
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return []cni.Opt{cni.WithDefaultConf}
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}
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