forked from openshift/origin
/
up.go
1466 lines (1296 loc) · 52.6 KB
/
up.go
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package docker
import (
"bytes"
"fmt"
"io"
"net"
"os"
"path/filepath"
"runtime"
"strings"
"github.com/blang/semver"
cliconfig "github.com/docker/docker/cli/config"
dockerclient "github.com/docker/engine-api/client"
"github.com/docker/engine-api/types/versions"
"github.com/golang/glog"
"github.com/spf13/cobra"
"github.com/spf13/pflag"
kerrors "k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/util/sets"
kclientcmd "k8s.io/client-go/tools/clientcmd"
kclientset "k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset"
"k8s.io/kubernetes/pkg/kubectl/cmd/templates"
kcmdutil "k8s.io/kubernetes/pkg/kubectl/cmd/util"
configapi "github.com/openshift/origin/pkg/cmd/server/api"
cmdutil "github.com/openshift/origin/pkg/cmd/util"
"github.com/openshift/origin/pkg/cmd/util/variable"
"github.com/openshift/origin/pkg/oc/bootstrap/docker/dockerhelper"
"github.com/openshift/origin/pkg/oc/bootstrap/docker/dockermachine"
"github.com/openshift/origin/pkg/oc/bootstrap/docker/errors"
"github.com/openshift/origin/pkg/oc/bootstrap/docker/host"
"github.com/openshift/origin/pkg/oc/bootstrap/docker/openshift"
"github.com/openshift/origin/pkg/oc/cli/util/clientcmd"
osclientcmd "github.com/openshift/origin/pkg/oc/cli/util/clientcmd"
)
const (
// CmdUpRecommendedName is the recommended command name
CmdUpRecommendedName = "up"
initialUser = "developer"
initialPassword = "developer"
initialProjectName = "myproject"
initialProjectDisplay = "My Project"
initialProjectDesc = "Initial developer project"
defaultRedirectClient = "openshift-web-console"
developmentRedirectURI = "https://localhost:9000"
dockerAPIVersion122 = "1.22"
)
var (
cmdUpLong = templates.LongDesc(`
Starts an OpenShift cluster using Docker containers, provisioning a registry, router,
initial templates, and a default project.
This command will attempt to use an existing connection to a Docker daemon. Before running
the command, ensure that you can execute docker commands successfully (i.e. 'docker ps').
Optionally, the command can create a new Docker machine for OpenShift using the VirtualBox
driver when the --create-machine argument is specified. The machine will be named 'openshift'
by default. To name the machine differently, use the --docker-machine=NAME argument. If the
--docker-machine=NAME argument is specified, but --create-machine is not, the command will attempt
to find an existing docker machine with that name and start it if it's not running.
By default, the OpenShift cluster will be setup to use a routing suffix that ends in nip.io.
This is to allow dynamic host names to be created for routes. An alternate routing suffix
can be specified using the --routing-suffix flag.
A public hostname can also be specified for the server with the --public-hostname flag.`)
cmdUpExample = templates.Examples(`
# Start OpenShift on a new docker machine named 'openshift'
%[1]s --create-machine
# Start OpenShift using a specific public host name
%[1]s --public-hostname=my.address.example.com
# Start OpenShift and preserve data and config between restarts
%[1]s --host-data-dir=/mydata --use-existing-config
# Use a different set of images
%[1]s --image="registry.example.com/origin" --version="v1.1"
# Specify which set of image streams to use
%[1]s --image-streams=centos7`)
imageStreams = map[string]string{
"centos7": "examples/image-streams/image-streams-centos7.json",
"rhel7": "examples/image-streams/image-streams-rhel7.json",
}
// defaultImageStreams is the default key for the above imageStreams mapping.
// It should be set during build via -ldflags.
defaultImageStreams string
templateLocations = map[string]string{
"mongodb": "examples/db-templates/mongodb-persistent-template.json",
"mariadb": "examples/db-templates/mariadb-persistent-template.json",
"mysql": "examples/db-templates/mysql-persistent-template.json",
"postgresql": "examples/db-templates/postgresql-persistent-template.json",
"cakephp quickstart": "examples/quickstarts/cakephp-mysql-persistent.json",
"dancer quickstart": "examples/quickstarts/dancer-mysql-persistent.json",
"django quickstart": "examples/quickstarts/django-postgresql-persistent.json",
"nodejs quickstart": "examples/quickstarts/nodejs-mongodb-persistent.json",
"rails quickstart": "examples/quickstarts/rails-postgresql-persistent.json",
"jenkins pipeline ephemeral": "examples/jenkins/jenkins-ephemeral-template.json",
"jenkins pipeline persistent": "examples/jenkins/jenkins-persistent-template.json",
"sample pipeline": "examples/jenkins/pipeline/samplepipeline.yaml",
}
// serviceCatalogTemplateLocations are templates that will be registered in an internal namespace
// when the service catalog is requested
serviceCatalogTemplateLocations = map[string]string{
"service catalog": "examples/service-catalog/service-catalog.yaml",
"template service broker apiserver": "install/templateservicebroker/apiserver-template.yaml",
"template service broker rbac": "install/templateservicebroker/rbac-template.yaml",
"template service broker registration": "install/service-catalog-broker-resources/template-service-broker-registration.yaml",
}
// loggingTemplateLocations are templates that will be registered in an internal namespace
// when logging is requested
loggingTemplateLocations = map[string]string{
"logging": "examples/logging/logging-deployer.yaml",
}
adminTemplateLocations = map[string]string{
"prometheus": "examples/prometheus/prometheus.yaml",
"heapster standalone": "examples/heapster/heapster-standalone.yaml",
}
openshiftVersion36 = semver.MustParse("3.6.0")
openshiftVersion37 = semver.MustParse("3.7.0")
)
// NewCmdUp creates a command that starts OpenShift on Docker with reasonable defaults
func NewCmdUp(name, fullName string, f *osclientcmd.Factory, out, errout io.Writer) *cobra.Command {
config := &ClientStartConfig{
CommonStartConfig: CommonStartConfig{
Out: out,
UsePorts: openshift.DefaultPorts,
PortForwarding: defaultPortForwarding(),
DNSPort: openshift.DefaultDNSPort,
checkAlternatePorts: true,
},
}
cmd := &cobra.Command{
Use: name,
Short: "Start OpenShift on Docker with reasonable defaults",
Long: cmdUpLong,
Example: fmt.Sprintf(cmdUpExample, fullName),
Run: func(c *cobra.Command, args []string) {
kcmdutil.CheckErr(config.Complete(f, c))
kcmdutil.CheckErr(config.Validate(out, errout))
if err := config.Start(out); err != nil {
os.Exit(1)
}
},
}
config.Bind(cmd.Flags())
return cmd
}
// taskFunc is a function that executes a start task
type taskFunc func(io.Writer) error
// conditionFunc determines whether a task should be run on start
type conditionFunc func() bool
// task is a named task for the start process
type task struct {
name string
fn taskFunc
condition conditionFunc
stdOut bool // true if task's output should go directly to stdout
}
func simpleTask(name string, fn taskFunc) task {
return task{name: name, fn: fn}
}
func conditionalTask(name string, fn taskFunc, condition conditionFunc) task {
return task{name: name, fn: fn, condition: condition}
}
type CommonStartConfig struct {
ImageVersion string
Image string
ImageStreams string
DockerMachine string
ShouldCreateDockerMachine bool
SkipRegistryCheck bool
ShouldInstallMetrics bool
ShouldInstallLogging bool
ShouldInstallServiceCatalog bool
PortForwarding bool
Out io.Writer
Tasks []task
HostName string
LocalConfigDir string
UseExistingConfig bool
Environment []string
ServerLogLevel int
HostVolumesDir string
HostConfigDir string
HostDataDir string
UsePorts []int
DNSPort int
ServerIP string
AdditionalIPs []string
UseNsenterMount bool
PublicHostname string
RoutingSuffix string
HostPersistentVolumesDir string
HTTPProxy string
HTTPSProxy string
NoProxy []string
CACert string
PVCount int
dockerClient dockerhelper.Interface
dockerHelper *dockerhelper.Helper
hostHelper *host.HostHelper
openshiftHelper *openshift.Helper
factory *clientcmd.Factory
originalFactory *clientcmd.Factory
command *cobra.Command
usingDefaultImages bool
usingDefaultOpenShiftImage bool
checkAlternatePorts bool
isRHDocker bool
shouldInitializeData *bool
shouldCreateUser *bool
containerNetworkErr chan error
}
func (c *CommonStartConfig) addTask(t task) {
c.Tasks = append(c.Tasks, t)
}
func (config *CommonStartConfig) Bind(flags *pflag.FlagSet) {
flags.BoolVar(&config.ShouldCreateDockerMachine, "create-machine", false, "Create a Docker machine if one doesn't exist")
flags.StringVar(&config.DockerMachine, "docker-machine", "", "Specify the Docker machine to use")
flags.StringVar(&config.ImageVersion, "version", "", "Specify the tag for OpenShift images")
flags.StringVar(&config.Image, "image", variable.DefaultImagePrefix, "Specify the images to use for OpenShift")
flags.StringVar(&config.ImageStreams, "image-streams", defaultImageStreams, "Specify which image streams to use, centos7|rhel7")
flags.BoolVar(&config.SkipRegistryCheck, "skip-registry-check", false, "Skip Docker daemon registry check")
flags.StringVar(&config.PublicHostname, "public-hostname", "", "Public hostname for OpenShift cluster")
flags.StringVar(&config.RoutingSuffix, "routing-suffix", "", "Default suffix for server routes")
flags.BoolVar(&config.UseExistingConfig, "use-existing-config", false, "Use existing configuration if present")
flags.StringVar(&config.HostConfigDir, "host-config-dir", host.DefaultConfigDir, "Directory on Docker host for OpenShift configuration")
flags.StringVar(&config.HostVolumesDir, "host-volumes-dir", host.DefaultVolumesDir, "Directory on Docker host for OpenShift volumes")
flags.StringVar(&config.HostDataDir, "host-data-dir", "", "Directory on Docker host for OpenShift data. If not specified, etcd data will not be persisted on the host.")
flags.StringVar(&config.HostPersistentVolumesDir, "host-pv-dir", host.DefaultPersistentVolumesDir, "Directory on host for OpenShift persistent volumes")
flags.BoolVar(&config.PortForwarding, "forward-ports", config.PortForwarding, "Use Docker port-forwarding to communicate with origin container. Requires 'socat' locally.")
flags.IntVar(&config.ServerLogLevel, "server-loglevel", 0, "Log level for OpenShift server")
flags.StringArrayVarP(&config.Environment, "env", "e", config.Environment, "Specify a key-value pair for an environment variable to set on OpenShift container")
flags.BoolVar(&config.ShouldInstallMetrics, "metrics", false, "Install metrics (experimental)")
flags.BoolVar(&config.ShouldInstallLogging, "logging", false, "Install logging (experimental)")
flags.BoolVar(&config.ShouldInstallServiceCatalog, "service-catalog", false, "Install service catalog (experimental).")
flags.StringVar(&config.HTTPProxy, "http-proxy", "", "HTTP proxy to use for master and builds")
flags.StringVar(&config.HTTPSProxy, "https-proxy", "", "HTTPS proxy to use for master and builds")
flags.StringArrayVar(&config.NoProxy, "no-proxy", config.NoProxy, "List of hosts or subnets for which a proxy should not be used")
}
// Validate validates that required fields in StartConfig have been populated
func (c *CommonStartConfig) Validate(out io.Writer) error {
if len(c.Tasks) == 0 {
return fmt.Errorf("no startup tasks to execute")
}
return nil
}
// Start runs the start tasks ensuring that they are executed in sequence
func (c *CommonStartConfig) Start(out io.Writer) error {
taskPrinter := NewTaskPrinter(out)
for _, task := range c.Tasks {
if task.condition != nil && !task.condition() {
continue
}
taskPrinter.StartTask(task.name)
w := taskPrinter.TaskWriter()
err := task.fn(w)
if err != nil {
taskPrinter.Failure(err)
return err
}
taskPrinter.Success()
}
return nil
}
// ClientStartConfig is the configuration for the client start command
type ClientStartConfig struct {
CommonStartConfig
}
func (config *ClientStartConfig) Bind(flags *pflag.FlagSet) {
config.CommonStartConfig.Bind(flags)
}
func (c *CommonStartConfig) Complete(f *osclientcmd.Factory, cmd *cobra.Command) error {
c.originalFactory = f
c.command = cmd
if len(c.ImageVersion) == 0 {
c.ImageVersion = defaultImageVersion()
}
c.addTask(simpleTask("Checking OpenShift client", c.CheckOpenShiftClient))
c.addTask(conditionalTask("Create Docker machine", c.CreateDockerMachine, func() bool { return c.ShouldCreateDockerMachine }))
// Get a Docker client.
// If a Docker machine was specified, make sure that the machine is running.
// Otherwise, use environment variables.
c.addTask(simpleTask("Checking Docker client", c.GetDockerClient))
// Check that we have the minimum Docker version available to run OpenShift
c.addTask(simpleTask("Checking Docker version", c.CheckDockerVersion))
// Check for an OpenShift container. If one exists and is running, exit.
// If one exists but not running, delete it.
c.addTask(simpleTask("Checking for existing OpenShift container", c.CheckExistingOpenShiftContainer))
// Ensure that the OpenShift Docker image is available.
// If not present, pull it.
t := simpleTask(fmt.Sprintf("Checking for %s image", c.openshiftImage()), c.CheckOpenShiftImage)
t.stdOut = true
c.addTask(t)
// Ensure that the Docker daemon has the right --insecure-registry argument.
// If not, then exit.
if !c.SkipRegistryCheck {
c.addTask(simpleTask("Checking Docker daemon configuration", c.CheckDockerInsecureRegistry))
}
// Ensure that ports used by OpenShift are available on the host machine
c.addTask(simpleTask("Checking for available ports", c.CheckAvailablePorts))
// Check whether the Docker host has the right binaries to use Kubernetes' nsenter mounter
// If not, use a shared volume to mount volumes on OpenShift
c.addTask(simpleTask("Checking type of volume mount", c.CheckNsenterMounter))
// Ensure that host directories exist.
// If not using the nsenter mounter, create a volume share on the host machine to
// mount OpenShift volumes.
c.addTask(simpleTask("Creating host directories", c.EnsureHostDirectories))
// Determine an IP to use for OpenShift.
// The result is that c.ServerIP will be populated with
// the IP that will be used on the client configuration file.
// The c.ServerIP will be set to a specific IP when:
// 1 - DOCKER_HOST is populated with a particular tcp:// type of address
// 2 - a docker-machine has been specified
// 3 - 127.0.0.1 is not working and an alternate IP has been found
// Otherwise, the default c.ServerIP will be 127.0.0.1 which is what
// will get stored in the client's config file. The reason for this is that
// the client config will not depend on the machine's current IP address which
// could change over time.
//
// c.AdditionalIPs will be populated with additional IPs that should be
// included in the server's certificate. These include any IPs that are currently
// assigned to the Docker host (hostname -I)
// Each IP is tested to ensure that it can be accessed from the current client
c.addTask(simpleTask("Finding server IP", c.DetermineServerIP))
return nil
}
// Complete initializes fields based on command parameters and execution environment
func (c *ClientStartConfig) Complete(f *osclientcmd.Factory, cmd *cobra.Command) error {
if err := c.CommonStartConfig.Complete(f, cmd); err != nil {
return err
}
// Check if the openshift server version is sufficient to run the service catalog.
// Do this first so we can fail quickly if it's not.
c.addTask(conditionalTask("Checking service catalog version requirements", c.CheckServiceCatalogPrereqVersion, func() bool {
return c.ShouldInstallServiceCatalog
}))
// Create an OpenShift configuration and start a container that uses it.
c.addTask(simpleTask("Starting OpenShift container", c.StartOpenShift))
// Add default redirect URIs to an OAuthClient to enable local web-console development.
c.addTask(conditionalTask("Adding default OAuthClient redirect URIs", c.EnsureDefaultRedirectURIs, c.ShouldInitializeData))
// Install a registry
c.addTask(conditionalTask("Installing registry", c.InstallRegistry, c.ShouldInitializeData))
// Install a router
c.addTask(conditionalTask("Installing router", c.InstallRouter, c.ShouldInitializeData))
// Install metrics
c.addTask(conditionalTask("Installing metrics", c.InstallMetrics, func() bool {
return c.ShouldInstallMetrics && c.ShouldInitializeData()
}))
// Import default image streams
c.addTask(conditionalTask("Importing image streams", c.ImportImageStreams, c.ShouldInitializeData))
// Import templates
c.addTask(conditionalTask("Importing templates", c.ImportTemplates, c.ShouldInitializeData))
// Import catalog templates
c.addTask(conditionalTask("Importing service catalog templates", c.ImportServiceCatalogTemplates, func() bool {
return c.ShouldInstallServiceCatalog && c.ShouldInitializeData()
}))
// Import logging templates
c.addTask(conditionalTask("Importing logging templates", c.ImportLoggingTemplates, func() bool {
return c.ShouldInstallLogging && c.ShouldInitializeData()
}))
// Install logging
c.addTask(conditionalTask("Installing logging", c.InstallLogging, func() bool {
return c.ShouldInstallLogging && c.ShouldInitializeData()
}))
// Install service catalog
c.addTask(conditionalTask("Installing service catalog", c.InstallServiceCatalog, func() bool {
return c.ShouldInstallServiceCatalog && c.ShouldInitializeData()
}))
// Install template service broker if our version is high enough
c.addTask(conditionalTask("Installing template service broker", c.InstallTemplateServiceBroker, func() bool {
return c.ShouldInstallServiceCatalog && c.ShouldInitializeData()
}))
// Register the TSB w/ the SC if requested. This is done even when reusing a config because
// the TSB registration is not persisted.
c.addTask(conditionalTask("Registering template service broker with service catalog", c.RegisterTemplateServiceBroker, func() bool {
return c.ShouldInstallServiceCatalog
}))
// Login with an initial default user
c.addTask(conditionalTask("Login to server", c.Login, c.ShouldCreateUser))
// Create an initial project
c.addTask(conditionalTask(fmt.Sprintf("Creating initial project %q", initialProjectName), c.CreateProject, c.ShouldCreateUser))
// Remove temporary directory
c.addTask(simpleTask("Removing temporary directory", c.RemoveTemporaryDirectory))
// Check container networking (only when loglevel > 0)
if glog.V(1) {
c.addTask(simpleTask("Checking container networking", c.CheckContainerNetworking))
}
// Display server information
c.addTask(simpleTask("Server Information", c.ServerInfo))
return nil
}
// Validate validates that required fields in StartConfig have been populated
func (c *ClientStartConfig) Validate(out, errout io.Writer) error {
cmdutil.WarnAboutCommaSeparation(errout, c.Environment, "--env")
if len(c.Tasks) == 0 {
return fmt.Errorf("no startup tasks to execute")
}
return nil
}
// Start runs the start tasks ensuring that they are executed in sequence
func (c *ClientStartConfig) Start(out io.Writer) error {
var detailedOut io.Writer
// When loglevel > 0, just use stdout to write all messages
if glog.V(1) {
detailedOut = out
} else {
fmt.Fprintf(out, "Starting OpenShift using %s ...\n", c.openshiftImage())
detailedOut = &bytes.Buffer{}
}
taskPrinter := NewTaskPrinter(detailedOut)
startError := func() error {
for _, task := range c.Tasks {
if task.condition != nil && !task.condition() {
continue
}
taskPrinter.StartTask(task.name)
w := taskPrinter.TaskWriter()
if task.stdOut && !bool(glog.V(1)) {
w = io.MultiWriter(w, out)
}
err := task.fn(w)
if err != nil {
taskPrinter.Failure(err)
return err
}
taskPrinter.Success()
}
return nil
}()
if startError != nil {
if !bool(glog.V(1)) {
fmt.Fprintf(out, "%s", detailedOut.(*bytes.Buffer).String())
}
return startError
}
if !bool(glog.V(1)) {
c.ServerInfo(out)
}
return nil
}
func defaultPortForwarding() bool {
// Defaults to true if running on Mac, with no DOCKER_HOST defined
return runtime.GOOS == "darwin" && len(os.Getenv("DOCKER_HOST")) == 0
}
const defaultDockerMachineName = "openshift"
func defaultImageVersion() string {
return variable.OverrideVersion.LastSemanticVersion()
}
// CreateDockerMachine will create a new Docker machine to run OpenShift
func (c *CommonStartConfig) CreateDockerMachine(out io.Writer) error {
if len(c.DockerMachine) == 0 {
c.DockerMachine = defaultDockerMachineName
}
fmt.Fprintf(out, "Creating docker-machine %s\n", c.DockerMachine)
return dockermachine.NewBuilder().Name(c.DockerMachine).Create()
}
// CheckOpenShiftClient ensures that the client can be configured
// for the new server
func (c *CommonStartConfig) CheckOpenShiftClient(out io.Writer) error {
kubeConfig := os.Getenv("KUBECONFIG")
if len(kubeConfig) == 0 {
return nil
}
var (
kubeConfigError error
f *os.File
)
_, err := os.Stat(kubeConfig)
switch {
case os.IsNotExist(err):
err = os.MkdirAll(filepath.Dir(kubeConfig), 0755)
if err != nil {
kubeConfigError = fmt.Errorf("cannot make directory: %v", err)
break
}
f, err = os.Create(kubeConfig)
if err != nil {
kubeConfigError = fmt.Errorf("cannot create file: %v", err)
break
}
f.Close()
case err == nil:
f, err = os.OpenFile(kubeConfig, os.O_RDWR, 0644)
if err != nil {
kubeConfigError = fmt.Errorf("cannot open %s for write: %v", kubeConfig, err)
break
}
f.Close()
default:
kubeConfigError = fmt.Errorf("cannot access %s: %v", kubeConfig, err)
}
if kubeConfigError != nil {
return errors.ErrKubeConfigNotWriteable(kubeConfig, kubeConfigError)
}
return nil
}
// GetDockerClient obtains a new Docker client from the environment or
// from a Docker machine, starting it if necessary
func (c *CommonStartConfig) GetDockerClient(out io.Writer) error {
client, err := getDockerClient(out, c.DockerMachine, true)
if err != nil {
return err
}
c.dockerClient = client
return nil
}
// getDockerClient obtains a new Docker client from the environment or
// from a Docker machine, starting it if necessary and permitted
func getDockerClient(out io.Writer, dockerMachine string, canStartDockerMachine bool) (dockerhelper.Interface, error) {
if len(dockerMachine) > 0 {
glog.V(2).Infof("Getting client for Docker machine %q", dockerMachine)
client, err := getDockerMachineClient(dockerMachine, out, canStartDockerMachine)
if err != nil {
return nil, errors.ErrNoDockerMachineClient(dockerMachine, err)
}
return client, nil
}
dockerTLSVerify := os.Getenv("DOCKER_TLS_VERIFY")
dockerCertPath := os.Getenv("DOCKER_CERT_PATH")
if len(dockerTLSVerify) > 0 && len(dockerCertPath) == 0 {
dockerCertPath = cliconfig.Dir()
os.Setenv("DOCKER_CERT_PATH", dockerCertPath)
}
if glog.V(4) {
dockerHost := os.Getenv("DOCKER_HOST")
if len(dockerHost) == 0 && len(dockerTLSVerify) == 0 && len(dockerCertPath) == 0 {
glog.Infof("No Docker environment variables found. Will attempt default socket.")
}
if len(dockerHost) > 0 {
glog.Infof("Will try Docker connection with host (DOCKER_HOST) %q", dockerHost)
} else {
glog.Infof("No Docker host (DOCKER_HOST) configured. Will attempt default socket.")
}
if len(dockerTLSVerify) > 0 {
glog.Infof("DOCKER_TLS_VERIFY=%s", dockerTLSVerify)
}
if len(dockerCertPath) > 0 {
glog.Infof("DOCKER_CERT_PATH=%s", dockerCertPath)
}
}
// FIXME: Workaround for docker engine API client on OS X - sets the default to
// the wrong DOCKER_HOST string
if runtime.GOOS == "darwin" {
dockerHost := os.Getenv("DOCKER_HOST")
if len(dockerHost) == 0 {
os.Setenv("DOCKER_HOST", "unix:///var/run/docker.sock")
}
}
host := os.Getenv("DOCKER_HOST")
if len(host) == 0 {
host = dockerclient.DefaultDockerHost
}
engineAPIClient, err := dockerclient.NewEnvClient()
if err != nil {
return nil, errors.ErrNoDockerClient(err)
}
return dockerhelper.NewClient(host, engineAPIClient), nil
}
// CheckExistingOpenShiftContainer checks the state of an OpenShift container.
// If one is already running, it throws an error.
// If one exists, it removes it so a new one can be created.
func (c *CommonStartConfig) CheckExistingOpenShiftContainer(out io.Writer) error {
container, running, err := c.DockerHelper().GetContainerState(openshift.OpenShiftContainer)
if err != nil {
return errors.NewError("unexpected error while checking OpenShift container state").WithCause(err)
}
if running {
return errors.NewError("OpenShift is already running").WithSolution("To start OpenShift again, stop the current cluster:\n$ %s\n", strings.Join(cmdutil.SiblingCommand(c.command, "down"), " "))
}
if container != nil {
err = c.DockerHelper().RemoveContainer(openshift.OpenShiftContainer)
if err != nil {
return errors.NewError("cannot delete existing OpenShift container").WithCause(err)
}
fmt.Fprintf(out, "Deleted existing OpenShift container\n")
}
return nil
}
// CheckOpenShiftImage checks whether the OpenShift image exists.
// If not it tells the Docker daemon to pull it.
func (c *CommonStartConfig) CheckOpenShiftImage(out io.Writer) error {
return c.DockerHelper().CheckAndPull(c.openshiftImage(), out)
}
// CheckDockerInsecureRegistry checks to see if the Docker daemon has an appropriate insecure registry argument set so that our services can access the registry
func (c *CommonStartConfig) CheckDockerInsecureRegistry(out io.Writer) error {
configured, hasEntries, err := c.DockerHelper().InsecureRegistryIsConfigured()
if err != nil {
return err
}
if !configured {
if hasEntries {
return errors.ErrInvalidInsecureRegistryArgument()
}
return errors.ErrNoInsecureRegistryArgument()
}
return nil
}
// CheckNsenterMounter checks whether the Docker host can use the nsenter mounter from Kubernetes.
// Otherwise, a shared volume is needed in Docker
func (c *CommonStartConfig) CheckNsenterMounter(out io.Writer) error {
var err error
c.UseNsenterMount, err = c.HostHelper().CanUseNsenterMounter()
if c.UseNsenterMount && c.isRHDocker {
fmt.Fprintf(out, "Using nsenter mounter for OpenShift volumes\n")
} else {
fmt.Fprintf(out, "Using Docker shared volumes for OpenShift volumes\n")
}
return err
}
// CheckDockerVersion checks that the appropriate Docker version is installed based on whether we are using the nsenter mounter
// or shared volumes for OpenShift
func (c *CommonStartConfig) CheckDockerVersion(out io.Writer) error {
ver, isRHDocker, err := c.DockerHelper().APIVersion()
if err != nil {
glog.V(2).Infof("Failed to check Docker API version: %v", err)
fmt.Fprintf(out, "WARNING: Cannot verify Docker version\n")
return nil
}
c.isRHDocker = isRHDocker
glog.V(5).Infof("Checking that docker API version is at least %v", dockerAPIVersion122)
if versions.LessThan(ver, dockerAPIVersion122) {
fmt.Fprintf(out, "WARNING: Docker version is %v, it needs to be >= %v\n", ver, dockerAPIVersion122)
}
return nil
}
func (c *CommonStartConfig) EnsureHostDirectories(io.Writer) error {
return c.HostHelper().EnsureHostDirectories(!c.UseNsenterMount)
}
// EnsureDefaultRedirectURIs merges a default URL to an auth client's RedirectURIs array
func (c *ClientStartConfig) EnsureDefaultRedirectURIs(out io.Writer) error {
factory, err := c.Factory()
if err != nil {
return err
}
oauthClient, err := factory.OpenshiftInternalOAuthClient()
if err != nil {
return err
}
webConsoleOAuth, err := oauthClient.Oauth().OAuthClients().Get(defaultRedirectClient, metav1.GetOptions{})
if err != nil {
if kerrors.IsNotFound(err) {
fmt.Fprintf(out, "Unable to find OAuthClient %q\n", defaultRedirectClient)
return nil
}
// announce fetch error without interrupting remaining tasks
suggestedCmd := fmt.Sprintf("oc patch %s/%s -p '{%q:[%q]}'", "oauthclient", defaultRedirectClient, "redirectURIs", developmentRedirectURI)
errMsg := fmt.Sprintf("Unable to fetch OAuthClient %q.\nTo manually add a development redirect URI, run %q\n", defaultRedirectClient, suggestedCmd)
fmt.Fprintf(out, "%s\n", errMsg)
return nil
}
// ensure the default redirect URI is not already present
redirects := sets.NewString(webConsoleOAuth.RedirectURIs...)
if redirects.Has(developmentRedirectURI) {
return nil
}
webConsoleOAuth.RedirectURIs = append(webConsoleOAuth.RedirectURIs, developmentRedirectURI)
_, err = oauthClient.Oauth().OAuthClients().Update(webConsoleOAuth)
if err != nil {
// announce error without interrupting remaining tasks
suggestedCmd := fmt.Sprintf("oc patch %s/%s -p '{%q:[%q]}'", "oauthclient", defaultRedirectClient, "redirectURIs", developmentRedirectURI)
errMsg := fmt.Sprintf("Unable to add development redirect URI to the %q OAuthClient.\nTo manually add it, run %q\n", defaultRedirectClient, suggestedCmd)
fmt.Fprintf(out, "%s\n", errMsg)
return nil
}
return nil
}
// CheckAvailablePorts ensures that ports used by OpenShift are available on the Docker host
func (c *CommonStartConfig) CheckAvailablePorts(out io.Writer) error {
if !c.checkAlternatePorts {
err := c.OpenShiftHelper().TestPorts(openshift.DefaultPorts)
if err == nil {
return nil
}
return errors.NewError("a port needed by OpenShift is not available").WithCause(err)
}
err := c.OpenShiftHelper().TestPorts(openshift.AllPorts)
if err == nil {
return nil
}
if !openshift.IsPortsNotAvailableErr(err) {
return err
}
unavailable := sets.NewInt(openshift.UnavailablePorts(err)...)
if unavailable.HasAny(openshift.BasePorts...) {
return errors.NewError("a port needed by OpenShift is not available").WithCause(err)
}
if unavailable.Has(openshift.DefaultDNSPort) {
if unavailable.Has(openshift.AlternateDNSPort) {
return errors.NewError("a port needed by OpenShift is not available").WithCause(err)
}
c.DNSPort = openshift.AlternateDNSPort
fmt.Fprintf(out, "WARNING: Binding DNS on port %d instead of 53, which may not be resolvable from all clients.\n", openshift.AlternateDNSPort)
}
for _, port := range openshift.RouterPorts {
if unavailable.Has(port) {
fmt.Fprintf(out, "WARNING: Port %d is already in use and may cause routing issues for applications.\n", port)
}
}
return nil
}
// DetermineServerIP gets an appropriate IP address to communicate with the OpenShift server
func (c *CommonStartConfig) DetermineServerIP(out io.Writer) error {
ip, err := c.determineIP(out)
if err != nil {
return errors.NewError("cannot determine a server IP to use").WithCause(err)
}
c.ServerIP = ip
fmt.Fprintf(out, "Using %s as the server IP\n", c.ServerIP)
c.AdditionalIPs, err = c.determineAdditionalIPs(c.ServerIP)
if err != nil {
return errors.NewError("cannot determine additional IPs").WithCause(err)
}
glog.V(4).Infof("Additional server IPs: %v", c.AdditionalIPs)
return nil
}
// updateNoProxy will add some default values to the NO_PROXY setting if they are not present
func (c *ClientStartConfig) updateNoProxy() {
values := []string{"127.0.0.1", c.ServerIP, "localhost", openshift.RegistryServiceIP, openshift.ServiceCatalogServiceIP, "172.30.0.0/8"}
ipFromServer, err := c.OpenShiftHelper().ServerIP()
if err == nil {
values = append(values, ipFromServer)
}
noProxySet := sets.NewString(c.NoProxy...)
for _, v := range values {
if !noProxySet.Has(v) {
noProxySet.Insert(v)
c.NoProxy = append(c.NoProxy, v)
}
}
}
// StartOpenShift starts the OpenShift container
func (c *ClientStartConfig) StartOpenShift(out io.Writer) error {
var err error
if len(c.HTTPProxy) > 0 || len(c.HTTPSProxy) > 0 {
c.updateNoProxy()
}
dockerRoot, err := c.DockerHelper().DockerRoot()
if err != nil {
return err
}
opt := &openshift.StartOptions{
ServerIP: c.ServerIP,
AdditionalIPs: c.AdditionalIPs,
RoutingSuffix: c.RoutingSuffix,
UseSharedVolume: !c.UseNsenterMount,
Images: c.imageFormat(),
HostVolumesDir: c.HostVolumesDir,
HostConfigDir: c.HostConfigDir,
HostDataDir: c.HostDataDir,
HostPersistentVolumesDir: c.HostPersistentVolumesDir,
UseExistingConfig: c.UseExistingConfig,
Environment: c.Environment,
LogLevel: c.ServerLogLevel,
DNSPort: c.DNSPort,
PortForwarding: c.PortForwarding,
HTTPProxy: c.HTTPProxy,
HTTPSProxy: c.HTTPSProxy,
NoProxy: c.NoProxy,
DockerRoot: dockerRoot,
ServiceCatalog: c.ShouldInstallServiceCatalog,
}
if c.ShouldInstallMetrics {
opt.MetricsHost = openshift.MetricsHost(c.RoutingSuffix, c.ServerIP)
}
if c.ShouldInstallLogging {
opt.LoggingHost = openshift.LoggingHost(c.RoutingSuffix, c.ServerIP)
}
c.LocalConfigDir, err = c.OpenShiftHelper().Start(opt, out)
if err != nil {
return err
}
serverIP, err := c.OpenShiftHelper().ServerIP()
if err != nil {
return err
}
// Start a container networking test
c.containerNetworkErr = make(chan error)
go func() {
c.containerNetworkErr <- c.OpenShiftHelper().TestContainerNetworking(serverIP)
}()
// Setup persistent storage
_, kClient, err := c.Clients()
if err != nil {
return err
}
factory, err := c.Factory()
if err != nil {
return err
}
authorizationClient, err := factory.OpenshiftInternalAuthorizationClient()
if err != nil {
return err
}
securityClient, err := factory.OpenshiftInternalSecurityClient()
if err != nil {
return err
}
// Remove any duplicate nodes
err = c.OpenShiftHelper().CheckNodes(kClient)
if err != nil {
return err
}
err = c.OpenShiftHelper().SetupPersistentStorage(authorizationClient.Authorization(), kClient, securityClient, c.HostPersistentVolumesDir, c.HostPersistentVolumesDir)
if err != nil {
return err
}
return nil
}
func (c *ClientStartConfig) CheckContainerNetworking(out io.Writer) error {
serverIP, err := c.OpenShiftHelper().ServerIP()
if err != nil {
return err
}
networkErr := <-c.containerNetworkErr
if networkErr != nil {
return errors.NewError("containers cannot communicate with the OpenShift master").
WithDetails("The cluster was started. However, the container networking test failed.").
WithSolution(
fmt.Sprintf("Ensure that access to ports tcp/8443, udp/53 and udp/8053 is allowed on %s.\n"+
"You may need to open these ports on your machine's firewall.", serverIP)).
WithCause(networkErr)
}
return nil
}
func (c *CommonStartConfig) imageFormat() string {
return fmt.Sprintf("%s-${component}:%s", c.Image, c.ImageVersion)
}
// InstallRegistry installs the OpenShift registry on the server
func (c *ClientStartConfig) InstallRegistry(out io.Writer) error {
_, kubeClient, err := c.Clients()
if err != nil {
return err
}
f, err := c.Factory()
if err != nil {
return err
}
return c.OpenShiftHelper().InstallRegistry(kubeClient, f, c.LocalConfigDir, c.imageFormat(), c.HostPersistentVolumesDir, out, os.Stderr)
}
// InstallRouter installs a default router on the server
func (c *ClientStartConfig) InstallRouter(out io.Writer) error {
_, kubeClient, err := c.Clients()
if err != nil {
return err
}
f, err := c.Factory()
if err != nil {
return err
}
return c.OpenShiftHelper().InstallRouter(kubeClient, f, c.LocalConfigDir, c.imageFormat(), c.ServerIP, c.PortForwarding, out, os.Stderr)
}
// ImportImageStreams imports default image streams into the server
// TODO: Use streams compiled into oc
func (c *ClientStartConfig) ImportImageStreams(out io.Writer) error {
imageStreamLocations := map[string]string{
c.ImageStreams: imageStreams[c.ImageStreams],
}
return c.importObjects(out, openshift.OpenshiftNamespace, imageStreamLocations)
}
// ImportTemplates imports default templates into the server
// TODO: Use templates compiled into oc
func (c *ClientStartConfig) ImportTemplates(out io.Writer) error {
if err := c.importObjects(out, openshift.OpenshiftNamespace, templateLocations); err != nil {
return err
}
version, err := c.OpenShiftHelper().ServerVersion()
if err != nil {
return err
}
if shouldImportAdminTemplates(version) {
return c.importObjects(out, "kube-system", adminTemplateLocations)
}
return nil
}
// ImportServiceCatalogTemplates imports service catalog templates into the server
func (c *ClientStartConfig) ImportServiceCatalogTemplates(out io.Writer) error {
if err := c.importObjects(out, openshift.OpenshiftInfraNamespace, serviceCatalogTemplateLocations); err != nil {
return err
}
return nil
}