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module.go
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module.go
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package kubernetes
import (
"context"
"fmt"
"os"
"os/exec"
"strings"
"sync"
"github.com/sirupsen/logrus"
"github.com/catake-com/multibase/backend/pkg/state"
)
type Module struct {
AppCtx context.Context
projects map[string]*Project
projectsMutex sync.RWMutex
stateStorage *state.Storage
appLogger *logrus.Logger
}
func NewModule(stateStorage *state.Storage, appLogger *logrus.Logger) (*Module, error) {
extendPathWithGcloud()
module := &Module{
projects: make(map[string]*Project),
stateStorage: stateStorage,
appLogger: appLogger,
}
return module, nil
}
func (m *Module) CreateNewProject(projectID string) (*State, error) {
project, err := NewProject(projectID, m.stateStorage, m.appLogger)
if err != nil {
return nil, err
}
return project.state, nil
}
func (m *Module) DeleteProject(projectID string) error {
project, err := m.fetchProject(projectID)
if err != nil {
return err
}
m.projectsMutex.Lock()
defer m.projectsMutex.Unlock()
err = project.Close()
if err != nil {
return err
}
err = m.stateStorage.Delete(projectID)
if err != nil {
return fmt.Errorf("failed to delete a state: %w", err)
}
delete(m.projects, projectID)
return nil
}
func (m *Module) SaveCurrentTab(projectID string, currentTab Tab) (*State, error) {
project, err := m.fetchProject(projectID)
if err != nil {
return nil, err
}
err = project.SaveCurrentTab(currentTab)
if err != nil {
return nil, err
}
return project.state, nil
}
func (m *Module) SelectNamespace(projectID, selectedNamespace string) (*State, error) {
project, err := m.fetchProject(projectID)
if err != nil {
return nil, err
}
err = project.SelectNamespace(selectedNamespace)
if err != nil {
return nil, err
}
return project.state, nil
}
func (m *Module) Connect(projectID, selectedContext string) (*State, error) {
project, err := m.fetchProject(projectID)
if err != nil {
return nil, err
}
err = project.Connect(selectedContext)
if err != nil {
return nil, err
}
return project.state, nil
}
func (m *Module) StartPortForwarding(projectID, namespace, pod, ports string) (*State, error) {
project, err := m.fetchProject(projectID)
if err != nil {
return nil, err
}
err = project.StartPortForwarding(namespace, pod, ports)
if err != nil {
return nil, err
}
return project.state, nil
}
func (m *Module) StopPortForwarding(projectID string) (*State, error) {
project, err := m.fetchProject(projectID)
if err != nil {
return nil, err
}
err = project.StopPortForwarding()
if err != nil {
return nil, err
}
return project.state, nil
}
func (m *Module) Namespaces(projectID string) ([]string, error) {
project, err := m.fetchProject(projectID)
if err != nil {
return nil, err
}
return project.Namespaces()
}
func (m *Module) OverviewData(projectID string) (*TabOverviewData, error) {
project, err := m.fetchProject(projectID)
if err != nil {
return nil, err
}
data, err := project.OverviewData()
if err != nil {
return nil, err
}
return data, nil
}
func (m *Module) WorkloadsPodsData(projectID string) (*TabWorkloadsPodsData, error) {
project, err := m.fetchProject(projectID)
if err != nil {
return nil, err
}
return project.WorkloadsPodsData()
}
func (m *Module) ProjectState(projectID string) (*State, error) {
project, err := m.fetchProject(projectID)
if err != nil {
return nil, err
}
return project.state, nil
}
func (m *Module) Close() error {
for _, project := range m.projects {
err := project.Close()
if err != nil {
return err
}
}
return nil
}
func (m *Module) fetchProject(projectID string) (*Project, error) {
m.projectsMutex.RLock()
project, ok := m.projects[projectID]
m.projectsMutex.RUnlock()
if ok {
return project, nil
}
project = &Project{}
projectState := &State{}
isLoaded, err := m.stateStorage.Load(projectID, projectState)
if err != nil {
return nil, fmt.Errorf("failed to load a state: %w", err)
}
if !isLoaded {
return nil, nil
}
projectState.CurrentTab = TabOverview
project.state = projectState
project.stateStorage = m.stateStorage
project.appLogger = m.appLogger
err = project.Initialize()
if err != nil {
return nil, err
}
m.projectsMutex.Lock()
m.projects[projectID] = project
m.projectsMutex.Unlock()
return project, nil
}
func extendPathWithGcloud() {
gcloudPaths := findGcloudBinPaths()
gkeAuthPaths := findGKEAuthPluginBinPaths()
for _, path := range append(gcloudPaths, gkeAuthPaths...) {
_ = os.Setenv("PATH", fmt.Sprintf("%s:%s", os.Getenv("PATH"), path))
}
}
func findGcloudBinPaths() []string {
output, err := exec.Command("which", "gcloud").Output()
if err == nil {
return []string{
strings.TrimSuffix(string(output), "/gcloud\n"),
}
}
homePath, err := os.UserHomeDir()
if err != nil {
return nil
}
return []string{
fmt.Sprintf("%s/google-cloud-sdk/bin", homePath),
fmt.Sprintf("%s/Documents/google-cloud-sdk/bin", homePath),
}
}
func findGKEAuthPluginBinPaths() []string {
output, err := exec.Command("which", "gke-gcloud-auth-plugin").Output()
if err != nil {
return nil
}
return []string{
strings.TrimSuffix(string(output), "/gke-gcloud-auth-plugin\n"),
}
}