127 lines
3.7 KiB
Go
127 lines
3.7 KiB
Go
package installer
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import (
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"encoding/json"
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"github.com/asaskevich/govalidator"
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"github.com/buger/jsonparser"
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"github.com/pkg/errors"
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"github.com/pterodactyl/wings/config"
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"github.com/pterodactyl/wings/server"
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"go.uber.org/zap"
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)
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type Installer struct {
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server *server.Server
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}
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// Validates the received data to ensure that all of the required fields
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// have been passed along in the request. This should be manually run before
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// calling Execute().
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func New(data []byte) (*Installer, error) {
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if !govalidator.IsUUIDv4(getString(data, "uuid")) {
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return nil, errors.New("uuid provided was not in a valid format")
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}
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if !govalidator.IsUUIDv4(getString(data, "service", "egg")) {
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return nil, errors.New("service egg provided was not in a valid format")
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}
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s := &server.Server{
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Uuid: getString(data, "uuid"),
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Suspended: false,
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State: server.ProcessOfflineState,
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Invocation: getString(data, "invocation"),
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EnvVars: make(map[string]string),
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Build: server.BuildSettings{
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MemoryLimit: getInt(data, "build", "memory"),
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Swap: getInt(data, "build", "swap"),
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IoWeight: uint16(getInt(data, "build", "io")),
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CpuLimit: getInt(data, "build", "cpu"),
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DiskSpace: getInt(data, "build", "disk"),
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},
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Allocations: server.Allocations{
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Mappings: make(map[string][]int),
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},
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}
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s.Init()
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s.Allocations.DefaultMapping.Ip = getString(data, "allocations", "default", "ip")
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s.Allocations.DefaultMapping.Port = int(getInt(data, "allocations", "default", "port"))
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// Unmarshal the environment variables from the request into the server struct.
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if b, _, _, err := jsonparser.Get(data, "environment"); err != nil {
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return nil, errors.WithStack(err)
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} else {
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s.EnvVars = make(map[string]string)
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if err := json.Unmarshal(b, &s.EnvVars); err != nil {
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return nil, errors.WithStack(err)
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}
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}
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// Unmarshal the allocation mappings from the request into the server struct.
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if b, _, _, err := jsonparser.Get(data, "allocations", "mappings"); err != nil {
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return nil, errors.WithStack(err)
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} else {
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s.Allocations.Mappings = make(map[string][]int)
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if err := json.Unmarshal(b, &s.Allocations.Mappings); err != nil {
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return nil, errors.WithStack(err)
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}
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}
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s.Container.Image = getString(data, "container", "image")
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b, err := s.WriteConfigurationToDisk()
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if err != nil {
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return nil, err
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}
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// Destroy the temporary server instance.
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s = nil
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// Create a new server instance using the configuration we wrote to the disk
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// so that everything gets instantiated correctly on the struct.
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s2, err := server.FromConfiguration(b, &config.Get().System)
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return &Installer{
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server: s2,
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}, err
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}
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// Returns the UUID associated with this installer instance.
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func (i *Installer) Uuid() string {
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return i.server.Uuid
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}
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// Return the server instance.
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func (i *Installer) Server() *server.Server {
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return i.server
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}
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// Executes the installer process, creating the server and running through the
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// associated installation process based on the parameters passed through for
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// the server instance.
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func (i *Installer) Execute() {
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zap.S().Debugw("creating required environment for server instance", zap.String("server", i.Uuid()))
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if err := i.server.Environment.Create(); err != nil {
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zap.S().Errorw("failed to create environment for server", zap.String("server", i.Uuid()), zap.Error(err))
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return
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}
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zap.S().Debugw("created environment for server during install process", zap.String("server", i.Uuid()))
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}
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// Returns a string value from the JSON data provided.
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func getString(data []byte, key ...string) string {
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value, _ := jsonparser.GetString(data, key...)
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return value
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}
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// Returns an int value from the JSON data provided.
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func getInt(data []byte, key ...string) int64 {
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value, _ := jsonparser.GetInt(data, key...)
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return value
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}
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