151 lines
4.6 KiB
Go
151 lines
4.6 KiB
Go
/*
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Copyright 2016 The Kubernetes Authors All rights reserved.
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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 provision
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import (
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"bytes"
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"fmt"
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"path"
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"text/template"
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"github.com/docker/machine/libmachine/auth"
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"github.com/docker/machine/libmachine/drivers"
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"github.com/docker/machine/libmachine/engine"
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"github.com/docker/machine/libmachine/log"
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"github.com/docker/machine/libmachine/provision"
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"github.com/docker/machine/libmachine/provision/pkgaction"
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"github.com/docker/machine/libmachine/swarm"
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)
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type BuildrootProvisioner struct {
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provision.SystemdProvisioner
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}
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func init() {
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provision.Register("Buildroot", &provision.RegisteredProvisioner{
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New: NewBuildrootProvisioner,
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})
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}
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func NewBuildrootProvisioner(d drivers.Driver) provision.Provisioner {
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return &BuildrootProvisioner{
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provision.NewSystemdProvisioner("buildroot", d),
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}
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}
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func (p *BuildrootProvisioner) String() string {
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return "buildroot"
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}
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func (p *BuildrootProvisioner) GenerateDockerOptions(dockerPort int) (*provision.DockerOptions, error) {
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var engineCfg bytes.Buffer
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driverNameLabel := fmt.Sprintf("provider=%s", p.Driver.DriverName())
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p.EngineOptions.Labels = append(p.EngineOptions.Labels, driverNameLabel)
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engineConfigTmpl := `[Unit]
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Description=Docker Application Container Engine
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Documentation=https://docs.docker.com
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After=network.target docker.socket
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Requires=docker.socket
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[Service]
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Type=notify
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# DOCKER_RAMDISK disables pivot_root in Docker, using MS_MOVE instead.
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Environment=DOCKER_RAMDISK=yes
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ExecStart=/usr/bin/docker daemon -H tcp://0.0.0.0:{{.DockerPort}} -H unix:///var/run/docker.sock --tlsverify --tlscacert {{.AuthOptions.CaCertRemotePath}} --tlscert {{.AuthOptions.ServerCertRemotePath}} --tlskey {{.AuthOptions.ServerKeyRemotePath}} {{ range .EngineOptions.Labels }}--label {{.}} {{ end }}{{ range .EngineOptions.InsecureRegistry }}--insecure-registry {{.}} {{ end }}{{ range .EngineOptions.RegistryMirror }}--registry-mirror {{.}} {{ end }}{{ range .EngineOptions.ArbitraryFlags }}--{{.}} {{ end }}
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ExecReload=/bin/kill -s HUP $MAINPID
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# Having non-zero Limit*s causes performance problems due to accounting overhead
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# in the kernel. We recommend using cgroups to do container-local accounting.
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LimitNOFILE=infinity
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LimitNPROC=infinity
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LimitCORE=infinity
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# Uncomment TasksMax if your systemd version supports it.
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# Only systemd 226 and above support this version.
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TasksMax=infinity
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TimeoutStartSec=0
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# set delegate yes so that systemd does not reset the cgroups of docker containers
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Delegate=yes
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# kill only the docker process, not all processes in the cgroup
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KillMode=process
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[Install]
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WantedBy=multi-user.target
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`
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t, err := template.New("engineConfig").Parse(engineConfigTmpl)
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if err != nil {
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return nil, err
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}
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engineConfigContext := provision.EngineConfigContext{
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DockerPort: dockerPort,
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AuthOptions: p.AuthOptions,
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EngineOptions: p.EngineOptions,
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}
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t.Execute(&engineCfg, engineConfigContext)
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return &provision.DockerOptions{
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EngineOptions: engineCfg.String(),
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EngineOptionsPath: p.DaemonOptionsFile,
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}, nil
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}
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func (p *BuildrootProvisioner) Package(name string, action pkgaction.PackageAction) error {
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return nil
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}
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func (p *BuildrootProvisioner) Provision(swarmOptions swarm.Options, authOptions auth.Options, engineOptions engine.Options) error {
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p.SwarmOptions = swarmOptions
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p.AuthOptions = authOptions
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p.EngineOptions = engineOptions
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log.Debugf("setting hostname %q", p.Driver.GetMachineName())
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if err := p.SetHostname(p.Driver.GetMachineName()); err != nil {
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return err
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}
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p.AuthOptions = setRemoteAuthOptions(p)
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log.Debugf("set auth options %+v", p.AuthOptions)
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log.Debugf("setting up certificates")
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if err := provision.ConfigureAuth(p); err != nil {
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return err
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}
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return nil
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}
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func setRemoteAuthOptions(p provision.Provisioner) auth.Options {
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dockerDir := p.GetDockerOptionsDir()
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authOptions := p.GetAuthOptions()
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// due to windows clients, we cannot use filepath.Join as the paths
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// will be mucked on the linux hosts
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authOptions.CaCertRemotePath = path.Join(dockerDir, "ca.pem")
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authOptions.ServerCertRemotePath = path.Join(dockerDir, "server.pem")
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authOptions.ServerKeyRemotePath = path.Join(dockerDir, "server-key.pem")
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return authOptions
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}
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