mirror of https://github.com/kubernetes/kops.git
94 lines
2.8 KiB
Go
94 lines
2.8 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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"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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// DockerOptionsBuilder adds options for docker to the model
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type DockerOptionsBuilder struct {
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*OptionsContext
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}
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var _ loader.OptionsBuilder = &DockerOptionsBuilder{}
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// BuildOptions is responsible for filling in the default setting for docker daemon
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func (b *DockerOptionsBuilder) BuildOptions(o interface{}) error {
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clusterSpec := o.(*kops.ClusterSpec)
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if clusterSpec.Docker == nil {
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clusterSpec.Docker = &kops.DockerConfig{}
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}
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docker := clusterSpec.Docker
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// Container runtime is not Docker, should not install
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if clusterSpec.ContainerRuntime != "docker" {
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docker.SkipInstall = true
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return nil
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}
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// Set the Docker version for known Kubernetes versions
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if fi.StringValue(clusterSpec.Docker.Version) == "" {
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if b.IsKubernetesGTE("1.21") {
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docker.Version = fi.String("20.10.9")
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} else {
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docker.Version = fi.String("19.03.15")
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}
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}
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if len(clusterSpec.Docker.LogOpt) == 0 && clusterSpec.Docker.LogDriver == nil {
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// Use built-in docker logging, if not configured otherwise (by the user)
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logDriver := "json-file"
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clusterSpec.Docker.LogDriver = &logDriver
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clusterSpec.Docker.LogOpt = append(clusterSpec.Docker.LogOpt, "max-size=10m")
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clusterSpec.Docker.LogOpt = append(clusterSpec.Docker.LogOpt, "max-file=5")
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}
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docker.LogLevel = fi.String("info")
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docker.IPTables = fi.Bool(false)
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docker.IPMasq = fi.Bool(false)
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// Note the alternative syntax... with a comma nodeup will try each of the filesystems in turn
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// TODO(justinsb): The ContainerOS image now has docker configured to use overlay2 out-of-the-box
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// and it is an error to specify the flag twice.
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docker.Storage = fi.String("overlay2,overlay,aufs")
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// Set systemd as the default cgroup driver in docker from k8s 1.20.
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if b.IsKubernetesGTE("1.20") && getDockerCgroupDriver(docker.ExecOpt) == "" {
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docker.ExecOpt = append(docker.ExecOpt, "native.cgroupdriver=systemd")
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}
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return nil
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}
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// checks if cgroup-driver is configured or not for docker or not.
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func getDockerCgroupDriver(execOpts []string) string {
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for _, value := range execOpts {
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if value == "native.cgroupdriver=systemd" {
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return "systemd"
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} else if value == "native.cgroupdriver=cgroupfs" {
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return "cgroupfs"
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}
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}
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return ""
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}
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