mirror of https://github.com/kubernetes/kops.git
112 lines
3.5 KiB
Go
112 lines
3.5 KiB
Go
/*
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Copyright 2019 The Kubernetes 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 components
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import (
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"fmt"
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"strings"
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"github.com/blang/semver/v4"
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"k8s.io/klog/v2"
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"k8s.io/kops/pkg/apis/kops"
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"k8s.io/kops/upup/pkg/fi"
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"k8s.io/kops/upup/pkg/fi/loader"
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)
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// ContainerdOptionsBuilder adds options for containerd to the model
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type ContainerdOptionsBuilder struct {
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*OptionsContext
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}
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var _ loader.OptionsBuilder = &ContainerdOptionsBuilder{}
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// BuildOptions is responsible for filling in the default setting for containerd daemon
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func (b *ContainerdOptionsBuilder) BuildOptions(o interface{}) error {
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clusterSpec := o.(*kops.ClusterSpec)
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if clusterSpec.Containerd == nil {
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clusterSpec.Containerd = &kops.ContainerdConfig{}
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}
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containerd := clusterSpec.Containerd
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if clusterSpec.ContainerRuntime == "containerd" {
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if b.IsKubernetesLT("1.18") {
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klog.Warningf("kubernetes %s is untested with containerd", clusterSpec.KubernetesVersion)
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}
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// Set containerd based on Kubernetes version
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if fi.StringValue(containerd.Version) == "" {
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if b.IsKubernetesGTE("1.19") {
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containerd.Version = fi.String("1.4.1")
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} else if b.IsKubernetesGTE("1.18") {
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containerd.Version = fi.String("1.3.4")
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} else {
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return fmt.Errorf("containerd version is required")
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}
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}
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// Apply defaults for containerd running in container runtime mode
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containerd.LogLevel = fi.String("info")
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usesKubenet := UsesKubenet(clusterSpec.Networking)
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if clusterSpec.Networking != nil && usesKubenet {
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// Using containerd with Kubenet requires special configuration. This is a temporary backwards-compatible solution
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// and will be deprecated when Kubenet is deprecated:
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// https://github.com/containerd/cri/blob/master/docs/config.md#cni-config-template
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lines := []string{
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"version = 2",
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"[plugins]",
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" [plugins.\"io.containerd.grpc.v1.cri\"]",
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" [plugins.\"io.containerd.grpc.v1.cri\".cni]",
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" conf_template = \"/etc/containerd/cni-config.template\"",
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}
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contents := strings.Join(lines, "\n")
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containerd.ConfigOverride = fi.String(contents)
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} else {
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containerd.ConfigOverride = fi.String("")
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}
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} else if clusterSpec.ContainerRuntime == "docker" {
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// Docker version should always be available
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dockerVersion := fi.StringValue(clusterSpec.Docker.Version)
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if dockerVersion == "" {
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return fmt.Errorf("docker version is required")
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} else {
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// Skip containerd setup for older versions without containerd service
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sv, err := semver.ParseTolerant(dockerVersion)
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if err != nil {
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return fmt.Errorf("unable to parse version string: %q", dockerVersion)
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}
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if sv.LT(semver.MustParse("18.9.0")) {
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containerd.SkipInstall = true
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return nil
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}
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}
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// Apply defaults for containerd running in Docker mode
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containerd.LogLevel = fi.String("info")
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containerd.ConfigOverride = fi.String("disabled_plugins = [\"cri\"]\n")
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} else {
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// Unknown container runtime, should not install containerd
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containerd.SkipInstall = true
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}
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return nil
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}
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