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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"k8s.io/klog"
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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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sv, err := KubernetesVersion(clusterSpec)
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if err != nil {
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return fmt.Errorf("unable to determine kubernetes version from %q", clusterSpec.KubernetesVersion)
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}
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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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if fi.StringValue(clusterSpec.Docker.Version) == "" {
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if clusterSpec.KubernetesVersion == "" {
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return fmt.Errorf("KubernetesVersion is required")
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}
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dockerVersion := ""
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if sv.Major == 1 && sv.Minor >= 12 {
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dockerVersion = "18.06.3"
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} else if sv.Major == 1 && sv.Minor >= 9 {
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dockerVersion = "17.03.2"
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} else if sv.Major == 1 && sv.Minor >= 8 {
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dockerVersion = "1.13.1"
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} else if sv.Major == 1 && sv.Minor >= 6 {
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dockerVersion = "1.12.6"
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} else if sv.Major == 1 && sv.Minor >= 5 {
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dockerVersion = "1.12.3"
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} else if sv.Major == 1 && sv.Minor <= 4 {
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dockerVersion = "1.11.2"
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}
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if dockerVersion == "" {
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return fmt.Errorf("unknown version of kubernetes %q (cannot infer docker version)", clusterSpec.KubernetesVersion)
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}
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clusterSpec.Docker.Version = &dockerVersion
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}
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if sv.Major == 1 && sv.Minor >= 6 {
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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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}
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docker.LogLevel = fi.String("warn")
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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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if b.IsKubernetesGTE("1.11") {
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// TODO(justinsb): figure out whether to use overlay2 on AWS jessie:
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// 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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// But Jessie (still our default AWS image) isn't recommended by docker with overlay2
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// (though that may be a kernel issue, and we run a custom kernel on our default image)
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// But we still need to worry about users running generic AMIs (e.g. stock jessie)
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docker.Storage = fi.String("overlay2,overlay,aufs")
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} else {
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docker.Storage = fi.String("overlay,aufs")
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}
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networking := clusterSpec.Networking
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if networking == nil || networking.Classic != nil {
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klog.Warningf("using deprecated (classic) networking")
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docker.Bridge = fi.String("cbr0")
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}
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return nil
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}
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