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cluster.go
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cluster.go
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/*
* Copyright 2018-2019, CS Systemes d'Information, http://www.c-s.fr
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package commands
import (
"fmt"
"os"
"strings"
"github.com/CS-SI/SafeScale/lib/utils/scerr"
"github.com/CS-SI/SafeScale/lib/utils/temporal"
log "github.com/sirupsen/logrus"
"github.com/urfave/cli"
pb "github.com/CS-SI/SafeScale/lib"
"github.com/CS-SI/SafeScale/lib/client"
"github.com/CS-SI/SafeScale/lib/server/cluster"
"github.com/CS-SI/SafeScale/lib/server/cluster/api"
"github.com/CS-SI/SafeScale/lib/server/cluster/control"
clusterpropsv1 "github.com/CS-SI/SafeScale/lib/server/cluster/control/properties/v1"
clusterpropsv2 "github.com/CS-SI/SafeScale/lib/server/cluster/control/properties/v2"
"github.com/CS-SI/SafeScale/lib/server/cluster/enums/Complexity"
"github.com/CS-SI/SafeScale/lib/server/cluster/enums/Flavor"
"github.com/CS-SI/SafeScale/lib/server/cluster/enums/Property"
"github.com/CS-SI/SafeScale/lib/server/install"
"github.com/CS-SI/SafeScale/lib/utils"
clitools "github.com/CS-SI/SafeScale/lib/utils/cli"
"github.com/CS-SI/SafeScale/lib/utils/cli/enums/ExitCode"
"github.com/CS-SI/SafeScale/lib/utils/concurrency"
)
var (
clusterName string
// clusterServiceName *string
clusterInstance api.Cluster
)
var clusterCommandName = "cluster"
// ClusterCommand command
var ClusterCommand = cli.Command{
Name: "cluster",
Aliases: []string{"datacenter", "dc", "platform"},
Usage: "create and manage cluster",
ArgsUsage: "COMMAND",
Subcommands: []cli.Command{
clusterNodeCommand,
clusterMasterCommand,
clusterListCommand,
clusterCreateCommand,
clusterDeleteCommand,
clusterInspectCommand,
clusterStateCommand,
//clusterSshCommand,
clusterStartCommand,
clusterStopCommand,
clusterExpandCommand,
clusterShrinkCommand,
clusterDcosCommand,
clusterKubectlCommand,
clusterListFeaturesCommand,
clusterCheckFeatureCommand,
clusterAddFeatureCommand,
clusterDeleteFeatureCommand,
},
}
func extractClusterArgument(c *cli.Context) error {
if !c.Command.HasName("list") || strings.HasSuffix(c.App.Name, " node") || strings.HasSuffix(c.App.Name, " master") {
if c.NArg() < 1 {
_ = cli.ShowSubcommandHelp(c)
return clitools.ExitOnInvalidArgument("Missing mandatory argument CLUSTERNAME.")
}
clusterName = c.Args().First()
if clusterName == "" {
_ = cli.ShowSubcommandHelp(c)
return clitools.ExitOnInvalidArgument("Invalid argument CLUSTERNAME.")
}
var err error
clusterInstance, err = cluster.Load(concurrency.RootTask(), clusterName)
if err != nil {
if _, ok := err.(scerr.ErrNotFound); ok {
if !c.Command.HasName("create") {
return clitools.ExitOnErrorWithMessage(ExitCode.NotFound, fmt.Sprintf("Cluster '%s' not found.\n", clusterName))
}
} else {
msg := fmt.Sprintf("failed to query for cluster '%s': %s\n", clusterName, err.Error())
return clitools.ExitOnRPC(msg)
}
} else {
if c.Command.HasName("create") {
return clitools.ExitOnErrorWithMessage(ExitCode.Duplicate, fmt.Sprintf("Cluster '%s' already exists.\n", clusterName))
}
}
}
return nil
}
// clusterListCommand handles 'deploy cluster list'
var clusterListCommand = cli.Command{
Name: "list",
Aliases: []string{"ls"},
Usage: "List available clusters",
Action: func(c *cli.Context) error {
log.Tracef("SafeScale command: {%s}, {%s} with args {%s}", clusterCommandName, c.Command.Name, c.Args())
list, err := cluster.List()
if err != nil {
return clitools.FailureResponse(clitools.ExitOnRPC(fmt.Sprintf("failed to get cluster list: %v", err)))
}
var formatted []interface{}
for _, value := range list {
c := value.(api.Cluster)
converted, err := convertToMap(c)
if err != nil {
return clitools.FailureResponse(clitools.ExitOnErrorWithMessage(ExitCode.Run, fmt.Sprintf("failed to extract data about cluster '%s'", c.GetIdentity(concurrency.RootTask()).Name)))
}
formatted = append(formatted, formatClusterConfig(converted, false))
}
return clitools.SuccessResponse(formatted)
},
}
// formatClusterConfig...
func formatClusterConfig(value interface{}, detailed bool) map[string]interface{} {
core := value.(map[string]interface{})
delete(core, "keypair")
if !detailed {
delete(core, "admin_login")
delete(core, "admin_password")
delete(core, "defaults")
delete(core, "features")
delete(core, "gateway_ip")
delete(core, "network_id")
delete(core, "nodes")
}
return core
}
// clusterInspectCmd handles 'deploy cluster <clustername> inspect'
var clusterInspectCommand = cli.Command{
Name: "inspect",
Aliases: []string{"show", "get"},
Usage: "inspect CLUSTERNAME",
ArgsUsage: "CLUSTERNAME",
// Help: &cli.HelpContent{
// Usage: `
// Usage: {{.ProgName}} [options] cluster <clustername> inspect`,
// Description: `
// Displays information about the cluster 'clustername'.`,
// },
Action: func(c *cli.Context) error {
log.Tracef("SafeScale command: {%s}, {%s} with args {%s}", clusterCommandName, c.Command.Name, c.Args())
err := extractClusterArgument(c)
if err != nil {
return clitools.FailureResponse(err)
}
clusterConfig, err := outputClusterConfig()
if err != nil {
return clitools.FailureResponse(clitools.ExitOnErrorWithMessage(ExitCode.Run, err.Error()))
}
return clitools.SuccessResponse(clusterConfig)
},
}
// outputClusterConfig displays cluster configuration after filtering and completing some fields
func outputClusterConfig() (map[string]interface{}, error) {
toFormat, err := convertToMap(clusterInstance)
if err != nil {
return nil, err
}
formatted := formatClusterConfig(toFormat, true)
return formatted, nil
}
// convertToMap converts clusterInstance to its equivalent in map[string]interface{},
// with fields converted to string and used as keys
func convertToMap(c api.Cluster) (map[string]interface{}, error) {
identity := c.GetIdentity(concurrency.RootTask())
result := map[string]interface{}{
"name": identity.Name,
"flavor": identity.Flavor,
"flavor_label": identity.Flavor.String(),
"complexity": identity.Complexity,
"complexity_label": identity.Complexity.String(),
"admin_login": "cladm",
"admin_password": identity.AdminPassword,
"keypair": identity.Keypair,
}
properties := c.GetProperties(concurrency.RootTask())
err := properties.LockForRead(Property.CompositeV1).ThenUse(func(v interface{}) error {
result["tenant"] = v.(*clusterpropsv1.Composite).Tenants[0]
return nil
})
if err != nil {
return nil, err
}
netCfg, err := c.GetNetworkConfig(concurrency.RootTask())
if err != nil {
return nil, err
}
result["network_id"] = netCfg.NetworkID
result["cidr"] = netCfg.CIDR
result["default_route_ip"] = netCfg.DefaultRouteIP
result["gateway_ip"] = netCfg.DefaultRouteIP // legacy ...
result["primary_gateway_ip"] = netCfg.GatewayIP
result["endpoint_ip"] = netCfg.EndpointIP
result["primary_public_ip"] = netCfg.EndpointIP
if netCfg.SecondaryGatewayIP != "" {
result["secondary_gateway_ip"] = netCfg.SecondaryGatewayIP
result["secondary_public_ip"] = netCfg.SecondaryPublicIP
result["public_ip"] = netCfg.EndpointIP // legacy ...
}
if !properties.Lookup(Property.DefaultsV2) {
err = properties.LockForRead(Property.DefaultsV1).ThenUse(func(v interface{}) error {
defaultsV1 := v.(*clusterpropsv1.Defaults)
result["defaults"] = map[string]interface{}{
"image": defaultsV1.Image,
"master": defaultsV1.MasterSizing,
"node": defaultsV1.NodeSizing,
}
return nil
})
} else {
err = properties.LockForRead(Property.DefaultsV2).ThenUse(func(v interface{}) error {
defaultsV2 := v.(*clusterpropsv2.Defaults)
result["defaults"] = map[string]interface{}{
"image": defaultsV2.Image,
"gateway": defaultsV2.GatewaySizing,
"master": defaultsV2.MasterSizing,
"node": defaultsV2.NodeSizing,
}
return nil
})
}
if err != nil {
return nil, err
}
err = properties.LockForRead(Property.NodesV1).ThenUse(func(v interface{}) error {
nodesV1 := v.(*clusterpropsv1.Nodes)
result["nodes"] = map[string]interface{}{
"masters": nodesV1.Masters,
"nodes": nodesV1.PrivateNodes,
}
return nil
})
if err != nil {
return nil, err
}
err = properties.LockForRead(Property.FeaturesV1).ThenUse(func(v interface{}) error {
result["features"] = v.(*clusterpropsv1.Features)
return nil
})
if err != nil {
return nil, err
}
err = properties.LockForRead(Property.StateV1).ThenUse(func(v interface{}) error {
state := v.(*clusterpropsv1.State).State
result["last_state"] = state
result["last_state_label"] = state.String()
return nil
})
if err != nil {
return nil, err
}
result["admin_login"] = "cladm"
// Add information not directly in cluster GetConfig()
//TODO: replace use of !Disabled["remotedesktop"] with use of Installed["remotedesktop"] (not yet implemented)
if _, ok := result["features"].(*clusterpropsv1.Features).Disabled["remotedesktop"]; !ok {
remoteDesktops := map[string][]string{}
clientHost := client.New().Host
for _, id := range c.ListMasterIDs(concurrency.RootTask()) {
host, err := clientHost.Inspect(id, temporal.GetExecutionTimeout())
if err != nil {
return nil, err
}
urlFmt := "https://%s/_platform/remotedesktop/%s/"
urls := []string{fmt.Sprintf(urlFmt, netCfg.EndpointIP, host.Name)}
if netCfg.SecondaryPublicIP != "" {
// VPL: no public VIP IP yet, so don't repeat primary gateway public IP
// urls = append(urls, fmt.Sprintf(+urlFmt, netCfg.PrimaryPublicIP, host.Name))
urls = append(urls, fmt.Sprintf(urlFmt, netCfg.SecondaryPublicIP, host.Name))
}
remoteDesktops[host.Name] = urls
}
result["remote_desktop"] = remoteDesktops
} else {
result["remote_desktop"] = fmt.Sprintf("Remote Desktop not installed. To install it, execute 'safescale deploy platform add-feature %s remotedesktop'.", clusterName)
}
return result, nil
}
// clusterCreateCmd handles 'deploy cluster <clustername> create'
var clusterCreateCommand = cli.Command{
Name: "create",
Aliases: []string{"new"},
Usage: "create a cluster",
ArgsUsage: "CLUSTERNAME",
Flags: []cli.Flag{
cli.StringFlag{
Name: "complexity, C",
Value: "Small",
Usage: "Defines the sizing of the cluster: Small, Normal, Large",
},
cli.StringFlag{
Name: "flavor, F",
Value: "K8S",
Usage: "Defines the type of the cluster; can be BOH, SWARM, OHPC, DCOS, K8S",
},
cli.BoolFlag{
Name: "keep-on-failure, k",
Usage: "If used, the resources are not deleted on failure (default: not set)",
},
cli.StringFlag{
Name: "cidr, N",
Value: "192.168.0.0/16",
Usage: "Defines the CIDR of the network to use with cluster",
},
cli.StringSliceFlag{
Name: "disable",
Usage: "Allows to disable addition of default features (can be used several times to disable several features)",
},
cli.StringFlag{
Name: "os",
Usage: "Defines the operating system to use",
},
cli.StringFlag{
Name: "sizing",
Usage: `Describe sizing for any type of host in format "<component><operator><value>[,...]" where:
<component> can be cpu, cpufreq, gpu, ram, disk
<operator> can be =,~,<,<=,>,>= (except for disk where valid operators are only = or >=):
- = means exactly <value>
- ~ means between <value> and 2*<value>
- < means strictly lower than <value>
- <= means lower or equal to <value>
- > means strictly greater than <value>
- >= means greater or equal to <value>
<value> can be an integer (for cpu and disk) or a float (for ram) or an including interval "[<lower value>-<upper value>]:"
- <cpu> is expecting an int as number of cpu cores, or an interval with minimum and maximum number of cpu cores
- <cpufreq> is expecting an int as minimum cpu frequency in MHz
- <gpu> is expecting an int as number of GPU (scanner would have been run first to be able to determine which template proposes GPU)
- <ram> is expecting a float as memory size in GB, or an interval with minimum and maximum memory size
- <disk> is expecting an int as system disk size in GB
examples:
--sizing "cpu <= 4, ram <= 10, disk = 100"
--sizing "cpu ~ 4, ram = [14-32]" (is identical to --sizing "cpu=[4-8], ram=[14-32]")
--sizing "cpu <= 8, ram ~ 16"
Can be used with --gw-sizing and friends to set a global host sizing and refine for a particular type of host.
`,
},
cli.StringFlag{
Name: "gw-sizing",
Usage: `Describe gateway sizing in format "<component><operator><value>[,...] (cf. --sizing for details)`,
},
cli.StringFlag{
Name: "master-sizing",
Usage: `Describe master sizing in format "<component><operator><value>[,...]" (cf. --sizing for details)`,
},
cli.StringFlag{
Name: "node-sizing",
Usage: `Describe node sizing in format "<component><operator><value>[,...]" (cf. --sizing for details)`,
},
cli.UintFlag{
Name: "cpu",
Usage: "DEPRECATED! uses --sizing and friends! Defines the number of cpu of masters and nodes in the cluster",
},
cli.Float64Flag{
Name: "ram",
Usage: "DEPRECATED! uses --sizing and friends! Defines the size of RAM of masters and nodes in the cluster (in GB)",
},
cli.UintFlag{
Name: "disk",
Usage: "DEPRECATED! uses --sizing and friends! Defines the size of system disk of masters and nodes (in GB)",
},
},
Action: func(c *cli.Context) (err error) {
log.Tracef("SafeScale command: {%s}, {%s} with args {%s}", clusterCommandName, c.Command.Name, c.Args())
err = extractClusterArgument(c)
if err != nil {
return clitools.FailureResponse(err)
}
complexityStr := c.String("complexity")
complexity, err := Complexity.Parse(complexityStr)
if err != nil {
msg := fmt.Sprintf("Invalid option --complexity|-C: %s\n", err.Error())
return clitools.FailureResponse(clitools.ExitOnInvalidOption(msg))
}
flavorStr := c.String("flavor")
flavor, err := Flavor.Parse(flavorStr)
if err != nil {
msg := fmt.Sprintf("Invalid option --flavor|-F: %s\n", err.Error())
return clitools.FailureResponse(clitools.ExitOnInvalidOption(msg))
}
keep := c.Bool("keep-on-failure")
cidr := c.String("cidr")
disable := c.StringSlice("disable")
disableFeatures := map[string]struct{}{}
for _, v := range disable {
disableFeatures[v] = struct{}{}
}
los := c.String("os")
if flavor == Flavor.DCOS {
// DCOS forces to use RHEL/CentOS/CoreOS, and we've chosen to use CentOS, so ignore --os option
los = ""
}
var (
gatewaysDef *pb.HostDefinition
mastersDef *pb.HostDefinition
nodesDef *pb.HostDefinition
)
if c.IsSet("sizing") {
nodesDef, err = constructPBHostDefinitionFromCLI(c, "sizing")
if err != nil {
return err
}
gatewaysDef = nodesDef
mastersDef = nodesDef
}
if c.IsSet("gw-sizing") {
gatewaysDef, err = constructPBHostDefinitionFromCLI(c, "gw-sizing")
if err != nil {
return err
}
}
if c.IsSet("master-sizing") {
mastersDef, err = constructPBHostDefinitionFromCLI(c, "master-sizing")
if err != nil {
return err
}
}
if c.IsSet("node-sizing") {
nodesDef, err = constructPBHostDefinitionFromCLI(c, "node-sizing")
if err != nil {
return err
}
}
if gatewaysDef == nil && mastersDef == nil && nodesDef == nil {
cpu := int32(c.Uint("cpu"))
ram := float32(c.Float64("ram"))
disk := int32(c.Uint("disk"))
gpu := int32(c.Uint("gpu"))
if cpu > 0 || ram > 0.0 || disk > 0 || los != "" {
nodesDef = &pb.HostDefinition{
ImageId: los,
Sizing: &pb.HostSizing{
MinCpuCount: cpu,
MaxCpuCount: cpu * 2,
MinRamSize: ram,
MaxRamSize: ram * 2.0,
MinDiskSize: disk,
GpuCount: gpu,
},
}
gatewaysDef = nodesDef
gatewaysDef.Sizing.GpuCount = -1 // Neither GPU for gateways by default ...
mastersDef = gatewaysDef // ... nor for masters
}
}
clusterInstance, err := cluster.Create(concurrency.RootTask(), control.Request{
Name: clusterName,
Complexity: complexity,
CIDR: cidr,
Flavor: flavor,
KeepOnFailure: keep,
GatewaysDef: gatewaysDef,
MastersDef: mastersDef,
NodesDef: nodesDef,
DisabledDefaultFeatures: disableFeatures,
})
if err != nil {
if clusterInstance != nil {
cluDel := clusterInstance.Delete(concurrency.RootTask())
if cluDel != nil {
log.Warnf("Error deleting cluster instance: %s", cluDel)
}
}
msg := fmt.Sprintf("failed to create cluster: %s\n", err.Error())
return clitools.FailureResponse(clitools.ExitOnErrorWithMessage(ExitCode.Run, msg))
}
if clusterInstance == nil {
msg := fmt.Sprintf("failed to create cluster: unknown reason")
return clitools.FailureResponse(clitools.ExitOnErrorWithMessage(ExitCode.Run, msg))
}
toFormat, err := convertToMap(clusterInstance)
if err != nil {
return clitools.FailureResponse(clitools.ExitOnErrorWithMessage(ExitCode.Run, err.Error()))
}
formatted := formatClusterConfig(toFormat, true)
if !Debug {
delete(formatted, "defaults")
}
return clitools.SuccessResponse(formatted)
},
}
// clusterDeleteCmd handles 'deploy cluster <clustername> delete'
var clusterDeleteCommand = cli.Command{
Name: "delete",
Aliases: []string{"destroy", "remove", "rm"},
Usage: "delete CLUSTERNAME",
ArgsUsage: "CLUSTERNAME",
// Help: &cli.HelpContent{
// Usage: `
// Usage: deploy [options] cluster <clustername> delete|destroy|remove|rm [-y]`,
// Options: []string{`
// options:
// -y,--assume-yes Don't ask for confirmation`,
// },
// Description: `
// Delete a cluster.`,
// },
Flags: []cli.Flag{
cli.BoolFlag{
Name: "assume-yes, yes, y",
},
cli.BoolFlag{
Name: "force, f",
},
},
Action: func(c *cli.Context) error {
log.Tracef("SafeScale command: {%s}, {%s} with args {%s}", clusterCommandName, c.Command.Name, c.Args())
err := extractClusterArgument(c)
if err != nil {
return clitools.FailureResponse(err)
}
yes := c.Bool("assume-yes")
force := c.Bool("force")
if !yes && !utils.UserConfirmed(fmt.Sprintf("Are you sure you want to delete Cluster '%s'", clusterName)) {
return clitools.SuccessResponse("Aborted")
}
if force {
log.Println("'-f,--force' does nothing yet")
}
err = clusterInstance.Delete(concurrency.RootTask())
if err != nil {
return clitools.FailureResponse(clitools.ExitOnRPC(err.Error()))
}
return clitools.SuccessResponse(nil)
},
}
// clusterStopCmd handles 'deploy cluster <clustername> stop'
var clusterStopCommand = cli.Command{
Name: "stop",
Aliases: []string{"freeze", "halt"},
Usage: "stop CLUSTERNAME",
ArgsUsage: "CLUSTERNAME",
// Help: &cli.HelpContent{
// Usage: `
// Usage: deploy [options] cluster <clustername> stop|freeze`,
// Description: `
// Stop the cluster (make it unavailable for duty).`,
// },
Action: func(c *cli.Context) error {
log.Tracef("SafeScale command: {%s}, {%s} with args {%s}", clusterCommandName, c.Command.Name, c.Args())
err := extractClusterArgument(c)
if err != nil {
return clitools.FailureResponse(err)
}
err = clusterInstance.Stop(concurrency.RootTask())
if err != nil {
return clitools.FailureResponse(clitools.ExitOnRPC(err.Error()))
}
return clitools.SuccessResponse(nil)
},
}
var clusterStartCommand = cli.Command{
Name: "start",
Aliases: []string{"unfreeze"},
Usage: "start CLUSTERNAME",
ArgsUsage: "CLUSTERNAME",
// Help: &cli.HelpContent{
// Usage: `
// Usage: {{.ProgName}} [options] cluster <clustername> start|unfreeze`,
// Options: []string{`
// options:
// --force, -f Force Don't ask for confirmation`,
// },
// Description: `
// Start the cluster (make it available for duty).`,
// },
Action: func(c *cli.Context) error {
log.Tracef("SafeScale command: {%s}, {%s} with args {%s}", clusterCommandName, c.Command.Name, c.Args())
err := extractClusterArgument(c)
if err != nil {
return clitools.FailureResponse(err)
}
err = clusterInstance.Start(concurrency.RootTask())
if err != nil {
return clitools.FailureResponse(clitools.ExitOnRPC(err.Error()))
}
return clitools.SuccessResponse(nil)
},
}
// clusterStateCmd handles 'deploy cluster <clustername> state'
var clusterStateCommand = cli.Command{
Name: "state",
Usage: "state CLUSTERNAME",
ArgsUsage: "CLUSTERNAME",
// Help: &cli.HelpContent{
// Usage: `
// Usage: {{.ProgName}} [options] cluster <clustername> state`,
// Description: `
// Get the cluster state.`,
// },
Action: func(c *cli.Context) error {
log.Tracef("SafeScale command: {%s}, {%s} with args {%s}", clusterCommandName, c.Command.Name, c.Args())
err := extractClusterArgument(c)
if err != nil {
return clitools.FailureResponse(err)
}
state, err := clusterInstance.GetState(concurrency.RootTask())
if err != nil {
msg := fmt.Sprintf("failed to get cluster state: %s", err.Error())
return clitools.FailureResponse(clitools.ExitOnRPC(msg))
}
return clitools.SuccessResponse(map[string]interface{}{
"Name": clusterName,
"State": state,
"StateLabel": state.String(),
})
},
}
// clusterExpandCmd handles 'deploy cluster <clustername> expand'
var clusterExpandCommand = cli.Command{
Name: "expand",
Usage: "expand CLUSTERNAME",
ArgsUsage: "CLUSTERNAME",
// Help: &cli.HelpContent{
// Usage: `
// Usage: deploy [options] cluster <clustername> expand [{command options}] [{host options}]`,
// Options: []string{
// `
// command options:
// --count,-n <number of nodes> Instructs to expand cluster with <number> of new nodes
// --public,-p Allocates public IP address(es) to node(s)`,
// `
// host options:
// --os <operating system> (default: Ubuntu 18.04)
// --cpu <number of cpus> (default: 4)
// --ram <ram size) (default: 15 GB)
// --disk <disk size> (default: 100 GB)`,
// },
// Description: `
// Expand the cluster by adding nodes.`,
// },
Flags: []cli.Flag{
cli.UintFlag{
Name: "count, n",
Usage: "Define the number of nodes wanted (default: 1)",
Value: 1,
},
cli.StringFlag{
Name: "os",
Usage: "Define the Operating System wanted",
},
cli.UintFlag{
Name: "cpu",
Usage: "Define the number of cpu for new node(s); default: number used at cluster creation",
Value: 0,
},
cli.Float64Flag{
Name: "ram",
Usage: "Define the size of RAM for new node(s) (in GB); default: size used at cluster creation",
Value: 0.0,
},
cli.UintFlag{
Name: "disk",
Usage: "Define the size of system disk for new node(s) (in GB); default: size used at cluster creation",
Value: 0,
},
cli.BoolFlag{
Name: "gpu",
Usage: "Ask for gpu capable host; default: no",
Hidden: true,
},
cli.StringFlag{
Name: "node-sizing",
Usage: `Describe node sizing in format "<component><operator><value>[,...]" where:
<component> can be cpu, cpufreq, gpu, ram, disk, os
<operator> can be =,<,> (except for disk where valid operators are only = or >)
<value> can be an integer (for cpu and disk) or a float (for ram) or an including interval "[<lower value>-<upper value>]"`,
},
},
Action: func(c *cli.Context) error {
log.Tracef("SafeScale command: {%s}, {%s} with args {%s}", clusterCommandName, c.Command.Name, c.Args())
err := extractClusterArgument(c)
if err != nil {
return clitools.FailureResponse(err)
}
count := int(c.Uint("count"))
if count == 0 {
count = 1
}
los := c.String("os")
var nodesDef *pb.HostDefinition
if c.IsSet("node-sizing") {
nodesDef, err = constructPBHostDefinitionFromCLI(c, "node-sizing")
if err != nil {
return err
}
}
if nodesDef == nil {
cpu := int32(c.Uint("cpu"))
ram := float32(c.Float64("ram"))
disk := int32(c.Uint("disk"))
gpu := int32(c.Uint("gpu"))
if cpu > 0 || ram > 0.0 || disk > 0 || los != "" {
nodesDef = &pb.HostDefinition{
ImageId: los,
Sizing: &pb.HostSizing{
MinCpuCount: cpu,
MaxCpuCount: cpu * 2,
MinRamSize: ram,
MaxRamSize: ram * 2.0,
MinDiskSize: disk,
GpuCount: gpu,
},
}
}
}
hosts, err := clusterInstance.AddNodes(concurrency.RootTask(), count, nodesDef)
if err != nil {
return clitools.FailureResponse(clitools.ExitOnRPC(err.Error()))
}
return clitools.SuccessResponse(hosts)
},
}
// clusterShrinkCommand handles 'deploy cluster <clustername> shrink'
var clusterShrinkCommand = cli.Command{
Name: "shrink",
Usage: "shrink CLUSTERNAME",
ArgsUsage: "CLUSTERNAME",
// Help: &cli.HelpContent{
// Usage: `
// Usage: {{.ProgName}} [options] cluster <clustername> shrink [{command options}]`,
// Options: []string{
// `
// command options:
// -n,--count <number of nodes> Number of nodes to delete from the cluster`,
// },
// Description: `
// Shrink cluster by removing last added node(s).`,
// },
Flags: []cli.Flag{
cli.UintFlag{
Name: "count, n",
Usage: "Define the number of nodes to remove; default: 1",
Value: 1,
},
cli.BoolFlag{
Name: "assume-yes, yes, y",
Usage: "Don't ask deletion confirmation",
},
},
Action: func(c *cli.Context) error {
log.Tracef("SafeScale command: {%s}, {%s} with args {%s}", clusterCommandName, c.Command.Name, c.Args())
err := extractClusterArgument(c)
if err != nil {
return clitools.FailureResponse(err)
}
count := c.Uint("count")
yes := c.Bool("yes")
var countS string
if count > 1 {
countS = "s"
}
present, err := clusterInstance.CountNodes(concurrency.RootTask())
if err != nil {
return clitools.FailureResponse(err)
}
if count > present {
msg := fmt.Sprintf("cannot delete %d node%s, the cluster contains only %d of them", count, countS, present)
return clitools.FailureResponse(clitools.ExitOnInvalidOption(msg))
}
if !yes {
msg := fmt.Sprintf("Are you sure you want to delete %d node%s from Cluster %s", count, countS, clusterName)
if !utils.UserConfirmed(msg) {
return clitools.SuccessResponse("Aborted")
}
}
// fmt.Printf("Deleting %d node%s from Cluster '%s' (this may take a while)...\n", count, countS, clusterName)
var msgs []string
availableMaster, err := clusterInstance.FindAvailableMaster(concurrency.RootTask())
if err != nil {
return clitools.FailureResponse(err)
}
for i := uint(0); i < count; i++ {
err := clusterInstance.DeleteLastNode(concurrency.RootTask(), availableMaster)
if err != nil {
msgs = append(msgs, fmt.Sprintf("failed to delete node #%d: %s", i+1, err.Error()))
}
}
if len(msgs) > 0 {
return clitools.FailureResponse(clitools.ExitOnRPC(strings.Join(msgs, "\n")))
}
return clitools.SuccessResponse(nil)
},
}
var clusterDcosCommand = cli.Command{
Name: "dcos",
Category: "Administrative commands",
Usage: "dcos CLUSTERNAME [COMMAND ...]",
ArgsUsage: "CLUSTERNAME",
// Help: &cli.HelpContent{
// Usage: `
// Usage: deploy [options] cluster <clustername> dcos [<arg>...]`,
// Description: `
// Executes DCOS cli on an available DCOS master.
// Is meaningful only for a cluster using DCOS flavor.`,
// },
Action: func(c *cli.Context) error {
log.Tracef("SafeScale command: {%s}, {%s} with args {%s}", clusterCommandName, c.Command.Name, c.Args())
err := extractClusterArgument(c)
if err != nil {
return clitools.FailureResponse(err)
}
identity := clusterInstance.GetIdentity(concurrency.RootTask())
if identity.Flavor != Flavor.DCOS {
msg := fmt.Sprintf("Can't call dcos on this cluster, its flavor isn't DCOS (%s).\n", identity.Flavor.String())
return clitools.FailureResponse(clitools.ExitOnErrorWithMessage(ExitCode.NotApplicable, msg))
}
args := c.Args().Tail()
cmdStr := "sudo -u cladm -i dcos " + strings.Join(args, " ")
err = executeCommand(cmdStr)
if err != nil {
return clitools.FailureResponse(err)
}
return clitools.SuccessResponse(nil)
},
}
var clusterKubectlCommand = cli.Command{
Name: "kubectl",
Category: "Administrative commands",
Usage: "kubectl CLUSTERNAME [COMMAND ...]",
ArgsUsage: "CLUSTERNAME",
// Help: &cli.HelpContent{
// Usage: `
// Usage: deploy [options] cluster <clustername> kubectl [-- <arg>...]`,
// Description: `
// Executes kubectl cli on the cluster.
// Is meaningful only for a cluster where Kubernetes service is installed and running.`,
// },
Action: func(c *cli.Context) error {
log.Tracef("SafeScale command: {%s}, {%s} with args {%s}", clusterCommandName, c.Command.Name, c.Args())
err := extractClusterArgument(c)
if err != nil {
return clitools.FailureResponse(err)
}
args := c.Args().Tail()
cmdStr := "sudo -u cladm -i kubectl " + strings.Join(args, " ")
err = executeCommand(cmdStr)
if err != nil {
return clitools.FailureResponse(err)
}
return clitools.SuccessResponse(nil)
},
}
var clusterRunCommand = cli.Command{
Name: "run",
Aliases: []string{"execute", "exec"},
Usage: "run CLUSTERNAME COMMAND",
ArgsUsage: "CLUSTERNAME",
// Help: &cli.HelpContent{
// Usage: `
// Usage: {{.ProgName}} [options] cluster list,ls
// {{.ProgName}} [options] cluster <clustername> run args[,args...]`,
// },
Action: func(c *cli.Context) error {
log.Tracef("SafeScale command: {%s}, {%s} with args {%s}", clusterCommandName, c.Command.Name, c.Args())
err := extractClusterArgument(c)
if err != nil {
return clitools.FailureResponse(err)
}
return clitools.FailureResponse(clitools.ExitOnErrorWithMessage(ExitCode.NotImplemented, "clusterRunCmd not yet implemented"))
},
}
func executeCommand(command string) error {
masters := clusterInstance.ListMasterIDs(concurrency.RootTask())
if len(masters) == 0 {
msg := fmt.Sprintf("No masters found for the cluster '%s'", clusterInstance.GetIdentity(concurrency.RootTask()).Name)
return clitools.ExitOnErrorWithMessage(ExitCode.Run, msg)
}
safescalessh := client.New().SSH
for i, m := range masters {
retcode, stdout, stderr, err := safescalessh.Run(m, command, temporal.GetConnectionTimeout(), temporal.GetExecutionTimeout())
if err != nil {
_, _ = fmt.Fprintf(os.Stderr, "failed to execute command on master #%d: %s", i+1, err.Error())
if i+1 < len(masters) {
_, _ = fmt.Fprintln(os.Stderr, "Trying another master...")
continue
}
}
if retcode != 0 {
output := stdout
if output != "" {
output += "\n"
}
output += stderr
// _, _ = fmt.Fprintf(os.Stderr, "Run on master #%d, retcode=%d\n%s\n", i+1, retcode, output)
return clitools.ExitOnRPC(output)
}
fmt.Println(stdout)
return nil
}
return clitools.ExitOnRPC("failed to find an available master server to execute the command.")
}
// clusterCheckFeaturesCommand handles 'safescale cluster <cluster name or id> list-features'
var clusterListFeaturesCommand = cli.Command{
Name: "list-features",
Aliases: []string{"list-available-features"},
Usage: "list-features",
ArgsUsage: "",
Flags: []cli.Flag{
cli.StringSliceFlag{