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competition.go
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competition.go
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package competition
import (
"bytes"
"encoding/json"
"html/template"
"io/ioutil"
"os"
"path/filepath"
"strings"
yaml "gopkg.in/yaml.v2"
)
type Competition struct {
AdminIPs []string `yaml:"admin_ips"`
RootPassword string `yaml:"root_password"`
AWS AWSConfig `yaml:"aws"`
Domain string `yaml:"domain"`
WhitelistIPs []string `yaml:"ip_whitelist"`
UserList map[string][]User
}
type AWSConfig struct {
CIDR string `yaml:"cidr"`
Region string `yaml:"region"`
APIKey string `yaml:"api_key"`
APISecret string `yaml:"api_secret"`
R53ZoneID string `yaml:"external_r53_zone_id"`
S3 S3Config `yaml:"s3"`
DHCPOptions DHCPConfig `yaml:"dhcp"`
KeyName string `yaml:"key_name"`
}
type DHCPConfig struct {
DNSName string `yaml:"domain"`
Nameservers []string `yaml:"nameservers"`
NTPServers []string `yaml:"ntp_servers"`
}
type NSRecord struct {
Name string `yaml:"name"`
Nameservers []string `yaml:"nameservers"`
}
type S3Config struct {
Region string `yaml:"region"`
Bucket string `yaml:"bucket"`
}
func (c *Competition) GetEnvs() map[*Environment]bool {
ValidateHome()
envs := make(map[*Environment]bool)
files, _ := ioutil.ReadDir(filepath.Join(GetHome(), "environments", "."))
for _, f := range files {
if f.Name() == ".DS_Store" {
continue
}
if f.Name() == ".gitkeep" {
continue
}
e, err := LoadEnvironment(f.Name())
if err != nil {
LogError("Error parsing environments list: " + err.Error())
} else {
nowInUse := false
if e.Name == GetEnv() {
nowInUse = true
}
envs[e] = nowInUse
}
}
return envs
}
func (c *Competition) EnvMap() map[string]*Environment {
ValidateHome()
envs := make(map[string]*Environment)
files, _ := ioutil.ReadDir(filepath.Join(GetHome(), "environments", "."))
for _, f := range files {
if f.Name() == ".DS_Store" {
continue
}
if f.Name() == ".gitkeep" {
continue
}
e, err := LoadEnvironment(f.Name())
if err != nil {
LogError("Error parsing environments list: " + err.Error())
} else {
envs[f.Name()] = e
}
}
return envs
}
func (c *Competition) GetEnvByName(name string) *Environment {
return c.EnvMap()[name]
}
func (c *Competition) CurrentEnv() *Environment {
return c.GetEnvByName(GetEnv())
}
func (c *Competition) CreateEnv(name, prefix string) {
ValidateHome()
if !ValidName(name) {
LogFatal("The name you entered was invalid. Please keep names to lowercase alphanumeric and under 16 characters.")
}
if !ValidPrefix(prefix) {
LogFatal("The prefix you entered was invalid. Please keep prefixes to lowercase alpha and under six characters.")
}
envs := c.GetEnvs()
for e := range envs {
if e.Name == name {
LogFatal("The name you entered is already an environment!")
}
if e.Prefix == prefix {
LogFatal("The prefix you entered is already in use! (" + e.Name + ")")
}
}
e := Environment{
Name: name,
Prefix: prefix,
}
os.MkdirAll(filepath.Join(GetHome(), "environments", name, "terraform", "scripts"), os.ModePerm)
os.OpenFile(filepath.Join(GetHome(), "environments", name, "terraform", "scripts", ".gitkeep"), os.O_RDONLY|os.O_CREATE, 0644)
os.MkdirAll(filepath.Join(GetHome(), "environments", name, "networks"), os.ModePerm)
os.OpenFile(filepath.Join(GetHome(), "environments", name, "networks", ".gitkeep"), os.O_RDONLY|os.O_CREATE, 0644)
os.MkdirAll(filepath.Join(GetHome(), "environments", name, "hosts"), os.ModePerm)
os.OpenFile(filepath.Join(GetHome(), "environments", name, "hosts", ".gitkeep"), os.O_RDONLY|os.O_CREATE, 0644)
var tpl bytes.Buffer
tmpl, err := template.New(name).Parse(string(MustAsset("env.yml")))
if err != nil {
LogFatal("Fatal Error parsing environment config template: " + err.Error())
}
if err := tmpl.Execute(&tpl, e); err != nil {
LogFatal("Fatal Error rendering environment config template: " + err.Error())
}
err = ioutil.WriteFile(filepath.Join(GetHome(), "environments", name, "env.yml"), tpl.Bytes(), 0644)
if err != nil {
LogFatal("Fatal Error writing environment config template: " + err.Error())
}
Log("Successfully created environment: " + name)
}
func (c *Competition) ChangeEnv(name string) {
if !EnvDirExistsByName(name) {
LogFatal("The environment you're trying to switch to doesn't exist!")
}
SetEnv(name)
Log("Current environment is now set to " + name)
}
func (c *Competition) SSHPublicKey() string {
data, err := ioutil.ReadFile(c.SSHPublicKeyPath())
if err != nil {
LogError("Could not read SSH public key for environment!")
return ""
}
return strings.TrimSpace(string(data))
}
func (c *Competition) ParseScripts() map[string]*Script {
scripts := make(map[string]*Script)
scriptFiles, _ := filepath.Glob(filepath.Join(GetHome(), "scripts", "*"))
for _, file := range scriptFiles {
if filepath.Base(file) == ".gitkeep" {
continue
}
script, err := LoadScript(file)
if err != nil {
continue
}
scripts[FileToName(file)] = script
}
return scripts
}
func (c *Competition) SSHPrivateKey() string {
data, err := ioutil.ReadFile(c.SSHPrivateKeyPath())
if err != nil {
LogError("Could not read SSH private key for environment!")
return ""
}
return string(data)
}
func (c *Competition) SSHPublicKeyPath() string {
return filepath.Join(GetHome(), "config", "infra.pem.pub")
}
func (c *Competition) EmployeeDBPath() string {
return filepath.Join(GetHome(), "config", "employees.json")
}
func (c *Competition) SSHPrivateKeyPath() string {
return filepath.Join(GetHome(), "config", "infra.pem")
}
func LoadCompetition() (*Competition, error) {
ValidateHome()
comp := Competition{}
LoadAMIs()
compConfig, err := ioutil.ReadFile(filepath.Join(GetHome(), "config", "config.yml"))
if err != nil {
return nil, err
}
err = yaml.Unmarshal(compConfig, &comp)
if err != nil {
return nil, err
}
comp.UserList = LoadUsersFromDB(comp.EmployeeDBPath())
return &comp, nil
}
func LoadUsersFromDB(path string) map[string][]User {
if !PathExists(path) {
LogError("User Database does not exist at config/employees.json")
}
var users map[string][]User
data, err := ioutil.ReadFile(path)
if err != nil {
LogFatal(err.Error())
}
err = json.Unmarshal(data, &users)
if err != nil {
LogFatal("Could not unmarshal users file: " + path)
}
return users
}