// NewCertSource returns a CertSource which can be used to authenticate using
// the provided oauth token. The provided client must not be nil.
func NewCertSource(host string, c *http.Client, checkRegion bool) *RemoteCertSource {
pkey, err := rsa.GenerateKey(rand.Reader, 2048)
if err != nil {
panic(err) // very unexpected.
}
serv, err := sqladmin.New(c)
if err != nil {
panic(err) // Only will happen if the provided client is nil.
}
if host != "" {
serv.BasePath = host
}
return &RemoteCertSource{pkey, serv, checkRegion}
}
func listInstances(ctx context.Context, cl *http.Client, projects []string) ([]string, error) {
if len(projects) == 0 {
// No projects requested.
return nil, nil
}
sql, err := sqladmin.New(cl)
if err != nil {
return nil, err
}
ch := make(chan string)
var wg sync.WaitGroup
wg.Add(len(projects))
for _, proj := range projects {
proj := proj
go func() {
err := sql.Instances.List(proj).Pages(ctx, func(r *sqladmin.InstancesListResponse) error {
for _, in := range r.Items {
// The Proxy is only support on Second Gen
if in.BackendType == "SECOND_GEN" {
ch <- fmt.Sprintf("%s:%s:%s", in.Project, in.Region, in.Name)
}
}
return nil
})
if err != nil {
log.Printf("Error listing instances in %v: %v", proj, err)
}
wg.Done()
}()
}
go func() {
wg.Wait()
close(ch)
}()
var ret []string
for x := range ch {
ret = append(ret, x)
}
if len(ret) == 0 {
return nil, fmt.Errorf("no Cloud SQL Instances found in these projects: %v", projects)
}
return ret, nil
}