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capideploy.go
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capideploy.go
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package main
import (
"flag"
"fmt"
"log"
"os"
"reflect"
"regexp"
"strings"
"time"
"github.com/capillariesio/capideploy/deploy"
)
const (
CmdCreateFloatingIp string = "create_floating_ip"
CmdDeleteFloatingIp string = "delete_floating_ip"
CmdCreateSecurityGroups string = "create_security_groups"
CmdDeleteSecurityGroups string = "delete_security_groups"
CmdCreateNetworking string = "create_networking"
CmdDeleteNetworking string = "delete_networking"
CmdCreateVolumes string = "create_volumes"
CmdDeleteVolumes string = "delete_volumes"
CmdCreateInstances string = "create_instances"
CmdDeleteInstances string = "delete_instances"
CmdAttachVolumes string = "attach_volumes"
CmdUploadFiles string = "upload_files"
CmdUploadS3 string = "upload_s3"
CmdDownloadFiles string = "download_files"
CmdInstallServices string = "install_services"
CmdConfigServices string = "config_services"
CmdStartServices string = "start_services"
CmdStopServices string = "stop_services"
CmdCreateInstanceUsers string = "create_instance_users"
CmdCopyPrivateKeys string = "copy_private_keys"
CmdPingInstances string = "ping_instances"
CmdBuildArtifacts string = "build_artifacts"
)
type SingleThreadCmdHandler func(*deploy.ProjectPair, bool) (deploy.LogMsg, error)
func DumpLogChan(logChan chan deploy.LogMsg) {
for len(logChan) > 0 {
msg := <-logChan
fmt.Println(string(msg))
}
}
func getNicknamesArg(entityName string) (string, error) {
if len(os.Args) < 3 {
return "", fmt.Errorf("not enough args, expected comma-separated list of %s or '*'", entityName)
}
if len(os.Args[2]) == 0 {
return "", fmt.Errorf("bad arg, expected comma-separated list of %s or '*'", entityName)
}
return os.Args[2], nil
}
func filterByNickname[GenericDef deploy.FileGroupUpDef | deploy.FileGroupDownDef | deploy.InstanceDef | deploy.S3FileGroupUpDef](nicknames string, sourceMap map[string]*GenericDef, entityName string) (map[string]*GenericDef, error) {
var defMap map[string]*GenericDef
rawNicknames := strings.Split(nicknames, ",")
defMap = map[string]*GenericDef{}
for _, rawNickname := range rawNicknames {
if strings.Contains(rawNickname, "*") {
matchFound := false
reNickname := regexp.MustCompile("^" + strings.ReplaceAll(rawNickname, "*", "[a-zA-Z0-9]*") + "$")
for fgNickname, fgDef := range sourceMap {
if reNickname.MatchString(fgNickname) {
matchFound = true
defMap[fgNickname] = fgDef
}
}
if !matchFound {
return nil, fmt.Errorf("no match found for %s '%s', available definitions: %s", entityName, rawNickname, reflect.ValueOf(sourceMap).MapKeys())
}
} else {
fgDef, ok := sourceMap[rawNickname]
if !ok {
return nil, fmt.Errorf("definition for %s '%s' not found, available definitions: %s", entityName, rawNickname, reflect.ValueOf(sourceMap).MapKeys())
}
defMap[rawNickname] = fgDef
}
}
return defMap, nil
}
func waitForWorkers(errorsExpected int, errChan chan error, logChan chan deploy.LogMsg) int {
finalCmdErr := 0
for errorsExpected > 0 {
select {
case cmdErr := <-errChan:
if cmdErr != nil {
finalCmdErr = 1
fmt.Fprintf(os.Stderr, "%s\n", cmdErr.Error())
}
errorsExpected--
case msg := <-logChan:
fmt.Println(msg)
}
}
DumpLogChan(logChan)
return finalCmdErr
}
func usage(flagset *flag.FlagSet) {
fmt.Printf(`
Capillaries deploy
Usage: capideploy <command> [command parameters] [optional parameters]
Commands:
%s
%s
%s
%s
%s
%s
%s <comma-separated list of instances to create volumes on, or 'all'>
%s <comma-separated list of instances to attach volumes on, or 'all'>
%s <comma-separated list of instances to delete volumes on, or 'all'>
%s <comma-separated list of instances to create, or 'all'>
%s <comma-separated list of instances to delete, or 'all'>
%s <comma-separated list of instances to ping, or 'all'>
%s <comma-separated list of instances to create users on, or 'all'>
%s <comma-separated list of instances to copy private keys to, or 'all'>
%s <comma-separated list of upload file groups, or 'all'>
%s <comma-separated list of download file groups, or 'all'>
%s <comma-separated list of upload S3 file groups, or 'all'>
%s <comma-separated list of instances to install services on, or 'all'>
%s <comma-separated list of instances to config services on, or 'all'>
%s <comma-separated list of instances to start services on, or 'all'>
%s <comma-separated list of instances to stop services on, or 'all'>
`,
CmdCreateFloatingIp,
CmdDeleteFloatingIp,
CmdCreateSecurityGroups,
CmdDeleteSecurityGroups,
CmdCreateNetworking,
CmdDeleteNetworking,
CmdCreateVolumes,
CmdAttachVolumes,
CmdDeleteVolumes,
CmdCreateInstances,
CmdDeleteInstances,
CmdPingInstances,
CmdCreateInstanceUsers,
CmdCopyPrivateKeys,
CmdUploadFiles,
CmdDownloadFiles,
CmdUploadS3,
CmdInstallServices,
CmdConfigServices,
CmdStartServices,
CmdStopServices,
)
fmt.Printf("\nOptional parameters:\n")
flagset.PrintDefaults()
}
func main() {
commonArgs := flag.NewFlagSet("common args", flag.ExitOnError)
argVerbosity := commonArgs.Bool("verbose", false, "Debug output")
argPrjFile := commonArgs.String("prj", "capideploy.json", "Capideploy project file path")
if len(os.Args) <= 1 {
usage(commonArgs)
os.Exit(1)
}
cmdStartTs := time.Now()
throttle := time.Tick(time.Second) // One call per second, to avoid error 429 on openstack calls
const maxWorkerThreads int = 10
var logChan = make(chan deploy.LogMsg, maxWorkerThreads*5)
var sem = make(chan int, maxWorkerThreads)
var errChan chan error
var parseErr error
errorsExpected := 1
var prjPair *deploy.ProjectPair
var fullPrjPath string
var prjErr error
singleThreadCommands := map[string]SingleThreadCmdHandler{
CmdCreateFloatingIp: nil,
CmdDeleteFloatingIp: nil,
CmdCreateSecurityGroups: nil,
CmdDeleteSecurityGroups: nil,
CmdCreateNetworking: nil,
CmdDeleteNetworking: nil,
CmdBuildArtifacts: deploy.BuildArtifacts,
}
if _, ok := singleThreadCommands[os.Args[1]]; ok {
parseErr = commonArgs.Parse(os.Args[2:])
} else {
parseErr = commonArgs.Parse(os.Args[3:])
}
if parseErr != nil {
log.Fatalf(parseErr.Error())
}
prjPair, fullPrjPath, prjErr = deploy.LoadProject(*argPrjFile)
if prjErr != nil {
log.Fatalf(prjErr.Error())
}
deployProvider, deployProviderErr := deploy.DeployProviderFactory(prjPair.Template.DeployProviderName)
if deployProviderErr != nil {
log.Fatalf(deployProviderErr.Error())
}
singleThreadCommands[CmdCreateFloatingIp] = deployProvider.CreateFloatingIp
singleThreadCommands[CmdDeleteFloatingIp] = deployProvider.DeleteFloatingIp
singleThreadCommands[CmdCreateSecurityGroups] = deployProvider.CreateSecurityGroups
singleThreadCommands[CmdDeleteSecurityGroups] = deployProvider.DeleteSecurityGroups
singleThreadCommands[CmdCreateNetworking] = deployProvider.CreateNetworking
singleThreadCommands[CmdDeleteNetworking] = deployProvider.DeleteNetworking
if cmdHandler, ok := singleThreadCommands[os.Args[1]]; ok {
errChan = make(chan error, errorsExpected)
sem <- 1
go func() {
logMsg, err := cmdHandler(prjPair, *argVerbosity)
logChan <- logMsg
errChan <- err
<-sem
}()
} else if os.Args[1] == CmdCreateInstances || os.Args[1] == CmdDeleteInstances {
nicknames, err := getNicknamesArg("instances")
if err != nil {
log.Fatalf(err.Error())
}
instances, err := filterByNickname(nicknames, prjPair.Live.Instances, "instance")
if err != nil {
log.Fatalf(err.Error())
}
errorsExpected = len(instances)
errChan = make(chan error, errorsExpected)
switch os.Args[1] {
case CmdCreateInstances:
// Make sure image/flavor is supported
usedFlavors := map[string]string{}
usedImages := map[string]string{}
usedKeypairs := map[string]struct{}{}
for _, instDef := range instances {
usedFlavors[instDef.FlavorName] = ""
usedImages[instDef.ImageName] = ""
usedKeypairs[instDef.RootKeyName] = struct{}{}
}
logMsg, err := deployProvider.GetFlavorIds(prjPair, usedFlavors, *argVerbosity)
logChan <- logMsg
DumpLogChan(logChan)
if err != nil {
log.Fatalf(err.Error())
}
logMsg, err = deployProvider.GetImageIds(prjPair, usedImages, *argVerbosity)
logChan <- logMsg
DumpLogChan(logChan)
if err != nil {
log.Fatalf(err.Error())
}
logMsg, err = deployProvider.GetKeypairs(prjPair, usedKeypairs, *argVerbosity)
logChan <- logMsg
DumpLogChan(logChan)
if err != nil {
log.Fatalf(err.Error())
}
fmt.Printf("Creating instances, consider clearing known_hosts to avoid ssh complaints:\n")
for _, i := range instances {
fmt.Printf("ssh-keygen -f ~/.ssh/known_hosts -R %s;\n", i.BestIpAddress())
}
for iNickname := range instances {
<-throttle
sem <- 1
go func(prjPair *deploy.ProjectPair, logChan chan deploy.LogMsg, errChan chan error, iNickname string) {
logMsg, err := deployProvider.CreateInstanceAndWaitForCompletion(
prjPair,
iNickname,
usedFlavors[prjPair.Live.Instances[iNickname].FlavorName],
usedImages[prjPair.Live.Instances[iNickname].ImageName],
prjPair.Live.Instances[iNickname].AvailabilityZone,
*argVerbosity)
logChan <- logMsg
errChan <- err
<-sem
}(prjPair, logChan, errChan, iNickname)
}
case CmdDeleteInstances:
for iNickname := range instances {
<-throttle
sem <- 1
go func(prjPair *deploy.ProjectPair, logChan chan deploy.LogMsg, errChan chan error, iNickname string) {
logMsg, err := deployProvider.DeleteInstance(prjPair, iNickname, *argVerbosity)
logChan <- logMsg
errChan <- err
<-sem
}(prjPair, logChan, errChan, iNickname)
}
default:
log.Fatalf("unknown create/delete instance command:" + os.Args[1])
}
} else if os.Args[1] == CmdPingInstances ||
os.Args[1] == CmdCreateInstanceUsers ||
os.Args[1] == CmdCopyPrivateKeys ||
os.Args[1] == CmdInstallServices ||
os.Args[1] == CmdConfigServices ||
os.Args[1] == CmdStartServices ||
os.Args[1] == CmdStopServices {
nicknames, err := getNicknamesArg("instances")
if err != nil {
log.Fatalf(err.Error())
}
instances, err := filterByNickname(nicknames, prjPair.Live.Instances, "instance")
if err != nil {
log.Fatalf(err.Error())
}
errorsExpected = len(instances)
errChan = make(chan error, len(instances))
for _, iDef := range instances {
<-throttle
sem <- 1
go func(prj *deploy.Project, logChan chan deploy.LogMsg, errChan chan error, iDef *deploy.InstanceDef) {
var logMsg deploy.LogMsg
var finalErr error
switch os.Args[1] {
case CmdPingInstances:
// Just run WhoAmI
logMsg, finalErr = deploy.ExecCommandsOnInstance(prjPair.Live.SshConfig, iDef.BestIpAddress(), []string{"id"}, *argVerbosity)
case CmdCreateInstanceUsers:
cmds, err := deploy.NewCreateInstanceUsersCommands(iDef)
if err != nil {
log.Fatalf("cannot build commands to create instance users: %s", err.Error())
}
logMsg, finalErr = deploy.ExecCommandsOnInstance(prjPair.Live.SshConfig, iDef.BestIpAddress(), cmds, *argVerbosity)
case CmdCopyPrivateKeys:
cmds, err := deploy.NewCopyPrivateKeysCommands(iDef)
if err != nil {
log.Fatalf("cannot build commands to copy private keys: %s", err.Error())
}
logMsg, finalErr = deploy.ExecCommandsOnInstance(prjPair.Live.SshConfig, iDef.BestIpAddress(), cmds, *argVerbosity)
case CmdInstallServices:
logMsg, finalErr = deploy.ExecScriptsOnInstance(prj.SshConfig, iDef.BestIpAddress(), iDef.Service.Env, prjPair.ProjectFileDirPath, iDef.Service.Cmd.Install, *argVerbosity)
case CmdConfigServices:
logMsg, finalErr = deploy.ExecScriptsOnInstance(prj.SshConfig, iDef.BestIpAddress(), iDef.Service.Env, prjPair.ProjectFileDirPath, iDef.Service.Cmd.Config, *argVerbosity)
case CmdStartServices:
logMsg, finalErr = deploy.ExecScriptsOnInstance(prj.SshConfig, iDef.BestIpAddress(), iDef.Service.Env, prjPair.ProjectFileDirPath, iDef.Service.Cmd.Start, *argVerbosity)
case CmdStopServices:
logMsg, finalErr = deploy.ExecScriptsOnInstance(prj.SshConfig, iDef.BestIpAddress(), iDef.Service.Env, prjPair.ProjectFileDirPath, iDef.Service.Cmd.Stop, *argVerbosity)
default:
log.Fatalf("unknown service command:" + os.Args[1])
}
logChan <- logMsg
errChan <- finalErr
<-sem
}(&prjPair.Live, logChan, errChan, iDef)
}
} else if os.Args[1] == CmdCreateVolumes || os.Args[1] == CmdAttachVolumes || os.Args[1] == CmdDeleteVolumes {
nicknames, err := getNicknamesArg("instances")
if err != nil {
log.Fatalf(err.Error())
}
instances, err := filterByNickname(nicknames, prjPair.Live.Instances, "instance")
if err != nil {
log.Fatalf(err.Error())
}
volCount := 0
for _, iDef := range instances {
volCount += len(iDef.Volumes)
}
if volCount == 0 {
fmt.Printf("No volumes to create/attach/delete")
os.Exit(0)
}
errorsExpected = volCount
errChan = make(chan error, volCount)
for iNickname, iDef := range instances {
for volNickname := range iDef.Volumes {
<-throttle
sem <- 1
switch os.Args[1] {
case CmdCreateVolumes:
go func(prjPair *deploy.ProjectPair, logChan chan deploy.LogMsg, errChan chan error, iNickname string, volNickname string) {
logMsg, err := deployProvider.CreateVolume(prjPair, iNickname, volNickname, *argVerbosity)
logChan <- logMsg
errChan <- err
<-sem
}(prjPair, logChan, errChan, iNickname, volNickname)
case CmdAttachVolumes:
go func(prjPair *deploy.ProjectPair, logChan chan deploy.LogMsg, errChan chan error, iNickname string, volNickname string) {
logMsg, err := deployProvider.AttachVolume(prjPair, iNickname, volNickname, *argVerbosity)
logChan <- logMsg
errChan <- err
<-sem
}(prjPair, logChan, errChan, iNickname, volNickname)
case CmdDeleteVolumes:
go func(prjPair *deploy.ProjectPair, logChan chan deploy.LogMsg, errChan chan error, iNickname string, volNickname string) {
logMsg, err := deployProvider.DeleteVolume(prjPair, iNickname, volNickname, *argVerbosity)
logChan <- logMsg
errChan <- err
<-sem
}(prjPair, logChan, errChan, iNickname, volNickname)
default:
log.Fatalf("unknown command:" + os.Args[1])
}
}
}
} else {
switch os.Args[1] {
case CmdUploadFiles:
nicknames, err := getNicknamesArg("file groups to upload")
if err != nil {
log.Fatalf(err.Error())
}
fileGroups, err := filterByNickname(nicknames, prjPair.Live.FileGroupsUp, "file group to upload")
if err != nil {
log.Fatalf(err.Error())
}
// Walk through src locally and create file upload specs and after-file specs
fileSpecs, afterSpecs, err := deploy.FileGroupUpDefsToSpecs(&prjPair.Live, fileGroups)
if err != nil {
log.Fatalf(err.Error())
}
errorsExpected = len(fileSpecs)
errChan = make(chan error, len(fileSpecs))
for _, fuSpec := range fileSpecs {
sem <- 1
go func(prj *deploy.Project, logChan chan deploy.LogMsg, errChan chan error, fuSpec *deploy.FileUploadSpec) {
logMsg, err := deploy.UploadFileSftp(prj, fuSpec.IpAddress, fuSpec.Src, fuSpec.Dst, fuSpec.DirPermissions, fuSpec.FilePermissions, fuSpec.Owner, *argVerbosity)
logChan <- logMsg
errChan <- err
<-sem
}(&prjPair.Live, logChan, errChan, fuSpec)
}
fileUpErr := waitForWorkers(errorsExpected, errChan, logChan)
if fileUpErr > 0 {
os.Exit(fileUpErr)
}
errorsExpected = len(afterSpecs)
errChan = make(chan error, len(afterSpecs))
for _, aSpec := range afterSpecs {
sem <- 1
go func(prj *deploy.Project, logChan chan deploy.LogMsg, errChan chan error, aSpec *deploy.AfterFileUploadSpec) {
logMsg, err := deploy.ExecScriptsOnInstance(prj.SshConfig, aSpec.IpAddress, aSpec.Env, prjPair.ProjectFileDirPath, aSpec.Cmd, *argVerbosity)
logChan <- logMsg
errChan <- err
<-sem
}(&prjPair.Live, logChan, errChan, aSpec)
}
case CmdDownloadFiles:
nicknames, err := getNicknamesArg("file groups to download")
if err != nil {
log.Fatalf(err.Error())
}
fileGroups, err := filterByNickname(nicknames, prjPair.Live.FileGroupsDown, "file group to download")
if err != nil {
log.Fatalf(err.Error())
}
// Walk through src remotely and create file upload specs
fileSpecs, err := deploy.FileGroupDownDefsToSpecs(&prjPair.Live, fileGroups)
if err != nil {
log.Fatalf(err.Error())
}
errorsExpected = len(fileSpecs)
errChan = make(chan error, len(fileSpecs))
for _, fdSpec := range fileSpecs {
sem <- 1
go func(prj *deploy.Project, logChan chan deploy.LogMsg, errChan chan error, fdSpec *deploy.FileDownloadSpec) {
logMsg, err := deploy.DownloadFileSftp(prj, fdSpec.IpAddress, fdSpec.Src, fdSpec.Dst, *argVerbosity)
logChan <- logMsg
errChan <- err
}(&prjPair.Live, logChan, errChan, fdSpec)
}
case CmdUploadS3:
nicknames, err := getNicknamesArg("S3 file groups to upload")
if err != nil {
log.Fatalf(err.Error())
}
s3FileGroups, err := filterByNickname(nicknames, prjPair.Live.S3FileGroupsUp, "S3 file group to upload")
if err != nil {
log.Fatalf(err.Error())
}
// Walk through src locally and create file upload specs and after-file specs
fileSpecs, err := deploy.S3FileGroupUpDefsToSpecs(&prjPair.Live, s3FileGroups)
if err != nil {
log.Fatalf(err.Error())
}
errorsExpected = len(fileSpecs)
errChan = make(chan error, len(fileSpecs))
for _, fuSpec := range fileSpecs {
sem <- 1
go func(prj *deploy.Project, logChan chan deploy.LogMsg, errChan chan error, fuSpec *deploy.S3FileUploadSpec) {
logMsg, err := deploy.UploadFileS3(prj, fuSpec.Src, fuSpec.Dst, *argVerbosity)
logChan <- logMsg
errChan <- err
<-sem
}(&prjPair.Live, logChan, errChan, fuSpec)
}
default:
log.Fatalf("unknown command:" + os.Args[1])
}
}
finalCmdErr := waitForWorkers(errorsExpected, errChan, logChan)
// Save updated project template, it may have some new ids and timestamps
if prjErr = prjPair.Template.SaveProject(fullPrjPath); prjErr != nil {
log.Fatalf(prjErr.Error())
}
if finalCmdErr > 0 {
os.Exit(finalCmdErr)
}
fmt.Printf("%s %sOK%s, elapsed %.3fs\n", os.Args[1], deploy.LogColorGreen, deploy.LogColorReset, time.Since(cmdStartTs).Seconds())
}