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// Package aws provides node discovery for Joyent Triton.
package triton
import (
"context"
"fmt"
"io/ioutil"
"log"
"github.com/joyent/triton-go"
"github.com/joyent/triton-go/authentication"
"github.com/joyent/triton-go/compute"
)
type Provider struct{}
func (p *Provider) Help() string {
return `triton:
provider: "triton"
account: The Triton account name
key_id: The Triton KeyID
url: The Triton URL
tag_key: The tag key to filter on
tag_value: The tag value to filter on
`
}
func (p *Provider) Addrs(args map[string]string, l *log.Logger) ([]string, error) {
if args["provider"] != "triton" {
return nil, fmt.Errorf("discover-triton: invalid provider " + args["provider"])
}
if l == nil {
l = log.New(ioutil.Discard, "", 0)
}
account := args["account"]
keyID := args["key_id"]
url := args["url"]
tagKey := args["tag_key"]
tagValue := args["tag_value"]
l.Printf("[INFO] discover-triton: Account is %q", account)
l.Printf("[INFO] discover-triton: URL is %q", url)
input := authentication.SSHAgentSignerInput{
KeyID: keyID,
AccountName: account,
}
signer, err := authentication.NewSSHAgentSigner(input)
if err != nil {
return nil, fmt.Errorf("error Creating SSH Agent Signer: %v", err)
}
config := &triton.ClientConfig{
TritonURL: url,
AccountName: account,
Signers: []authentication.Signer{signer},
}
c, err := compute.NewClient(config)
if err != nil {
return nil, fmt.Errorf("error constructing Compute Client: %v", err)
}
t := make(map[string]interface{}, 0)
t[tagKey] = tagValue
listInput := &compute.ListInstancesInput{
Tags: t,
}
instances, err := c.Instances().List(context.Background(), listInput)
if err != nil {
return nil, fmt.Errorf("error getting instance list: %v", err)
}
var addrs []string
for _, instance := range instances {
l.Printf("[DEBUG] Instance ID: %q", instance.ID)
l.Printf("[DEBUG] Instance PrimaryIP: %q", instance.PrimaryIP)
if instance.PrimaryIP == "" {
l.Printf("[DEBUG] discover-triton: Instance %s has no marked PrimaryIP", instance.ID)
continue
} else {
addrs = append(addrs, instance.PrimaryIP)
}
}
return addrs, nil
}
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