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controller.go
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controller.go
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package internal
import (
"encoding/base64"
"fmt"
"time"
"k8s.io/client-go/rest"
"github.com/homedepot/go-clouddriver/internal/arcade"
"github.com/homedepot/go-clouddriver/internal/artifact"
"github.com/homedepot/go-clouddriver/internal/fiat"
"github.com/homedepot/go-clouddriver/internal/front50"
"github.com/homedepot/go-clouddriver/internal/kubernetes"
"github.com/homedepot/go-clouddriver/internal/sql"
clouddriver "github.com/homedepot/go-clouddriver/pkg"
)
const (
DefaultChanSize = 10
DefaultListTimeoutSeconds = 10
)
// Controller holds all non request-scoped objects.
type Controller struct {
ArcadeClient arcade.Client
ArtifactCredentialsController artifact.CredentialsController
FiatClient fiat.Client
Front50Client front50.Client
KubernetesController kubernetes.Controller
SQLClient sql.Client
}
// KubernetesProvider returns a kubernetes provider instance
// for a given account name. It instantiates a kubernetes
// Client and Clientset and attaches these instances to the provider.
func (cc *Controller) KubernetesProvider(account string) (*kubernetes.Provider, error) {
return cc.KubernetesProviderWithTimeout(account, 0)
}
// KubernetesProviderWithTimeout returns a kubernetes provider,
// defining its client and clientset timeouts to be the timeout
// passed in. If no timeout is passed this field is not set.
func (cc *Controller) KubernetesProviderWithTimeout(account string,
timeout time.Duration) (*kubernetes.Provider, error) {
// Get the provider info for the account.
provider, err := cc.SQLClient.GetKubernetesProvider(account)
if err != nil {
return nil, fmt.Errorf("internal: error getting kubernetes provider %s: %v", account, err)
}
// Decode the provider's CA data.
cd, err := base64.StdEncoding.DecodeString(provider.CAData)
if err != nil {
return nil, fmt.Errorf("internal: error decoding provider CA data: %v", err)
}
// Grab the auth token from arcade.
token, err := cc.ArcadeClient.Token(provider.TokenProvider)
if err != nil {
return nil, fmt.Errorf("internal: error getting token from arcade for provider %s: %v",
provider.TokenProvider, err)
}
config := &rest.Config{
Host: provider.Host,
BearerToken: token,
TLSClientConfig: rest.TLSClientConfig{
CAData: cd,
},
}
if timeout > 0 {
config.Timeout = timeout
}
client, err := cc.KubernetesController.NewClient(config)
if err != nil {
return nil, fmt.Errorf("internal: error creating new kubernetes client: %v", err)
}
clientset, err := cc.KubernetesController.NewClientset(config)
if err != nil {
return nil, fmt.Errorf("internal: error creating new kubernetes clientset: %v", err)
}
provider.WithClient(client)
provider.WithClientset(clientset)
return &provider, nil
}
// KubernetesProvidersForAccountsWithTimeout returns a all kubernetes providers for a given list of accounts,
// defining their client and clientset's timeouts to be the timeout passed in.
// If no timeout is passed this field is not set.
func (cc *Controller) KubernetesProvidersForAccountsWithTimeout(accounts []string,
timeout time.Duration) ([]*kubernetes.Provider, error) {
ps := []*kubernetes.Provider{}
m := map[string]bool{}
// Make a map of accounts, so accounts lookup is O(1).
for _, account := range accounts {
m[account] = true
}
// Get the provider info for the account.
providers, err := cc.SQLClient.ListKubernetesProviders()
if err != nil {
return nil, fmt.Errorf("internal: error listing kubernetes providers: %v", err)
}
for _, provider := range providers {
provider := provider
if !m[provider.Name] {
continue
}
// Decode the provider's CA data.
cd, err := base64.StdEncoding.DecodeString(provider.CAData)
if err != nil {
clouddriver.Log(fmt.Errorf("internal: error decoding provider CA data: %v", err))
continue
}
// Grab the auth token from arcade.
token, err := cc.ArcadeClient.Token(provider.TokenProvider)
if err != nil {
clouddriver.Log(fmt.Errorf("internal: error getting token from arcade for provider %s: %v",
provider.TokenProvider, err))
continue
}
config := &rest.Config{
Host: provider.Host,
BearerToken: token,
TLSClientConfig: rest.TLSClientConfig{
CAData: cd,
},
}
if timeout > 0 {
config.Timeout = timeout
}
client, err := cc.KubernetesController.NewClient(config)
if err != nil {
clouddriver.Log(fmt.Errorf("internal: error creating new kubernetes client: %v", err))
continue
}
clientset, err := cc.KubernetesController.NewClientset(config)
if err != nil {
clouddriver.Log(fmt.Errorf("internal: error creating new kubernetes clientset: %v", err))
continue
}
provider.WithClient(client)
provider.WithClientset(clientset)
ps = append(ps, &provider)
}
return ps, nil
}
// AllKubernetesProvidersWithTimeout returns a all kubernetes providers,
// defining their client and clientset's timeouts to be the timeout
// passed in. If no timeout is passed this field is not set.
func (cc *Controller) AllKubernetesProvidersWithTimeout(timeout time.Duration) ([]*kubernetes.Provider, error) {
ps := []*kubernetes.Provider{}
// Get the provider info for the account.
providers, err := cc.SQLClient.ListKubernetesProviders()
if err != nil {
return nil, fmt.Errorf("internal: error listing kubernetes providers: %v", err)
}
for _, provider := range providers {
provider := provider
// Decode the provider's CA data.
cd, err := base64.StdEncoding.DecodeString(provider.CAData)
if err != nil {
clouddriver.Log(fmt.Errorf("internal: error decoding provider CA data: %v", err))
continue
}
// Grab the auth token from arcade.
token, err := cc.ArcadeClient.Token(provider.TokenProvider)
if err != nil {
clouddriver.Log(fmt.Errorf("internal: error getting token from arcade for provider %s: %v",
provider.TokenProvider, err))
continue
}
config := &rest.Config{
Host: provider.Host,
BearerToken: token,
TLSClientConfig: rest.TLSClientConfig{
CAData: cd,
},
}
if timeout > 0 {
config.Timeout = timeout
}
client, err := cc.KubernetesController.NewClient(config)
if err != nil {
clouddriver.Log(fmt.Errorf("internal: error creating new kubernetes client: %v", err))
continue
}
clientset, err := cc.KubernetesController.NewClientset(config)
if err != nil {
clouddriver.Log(fmt.Errorf("internal: error creating new kubernetes clientset: %v", err))
continue
}
provider.WithClient(client)
provider.WithClientset(clientset)
ps = append(ps, &provider)
}
return ps, nil
}