/
rancher.go
82 lines (65 loc) · 1.82 KB
/
rancher.go
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package main
import (
"errors"
"strings"
"github.com/Sirupsen/logrus"
"github.com/drone/drone-go/drone"
"github.com/rancher/go-rancher-metadata/metadata"
)
type RancherClient struct {
client *metadata.Client
}
type RancherStackServicePair struct {
Stack string
Service string
}
type DynamicNodePool interface {
ListNodes(string) ([]*drone.Node, error)
}
func NewPoolClient(endpoint string) (DynamicNodePool, error) {
client, err := NewRancherClient(endpoint)
if err != nil {
return nil, err
}
return &RancherClient{client}, nil
}
func NewRancherClient(endpoint string) (*metadata.Client, error) {
return metadata.NewClientAndWait(endpoint)
}
func (c *RancherClient) ListNodes(nodesPath string) ([]*drone.Node, error) {
nodes := []*drone.Node{}
stackServicePair, err := segmentPathToStackServicePair(nodesPath)
if err != nil {
logrus.Fatal(err)
}
rancherNodes, err := c.client.GetServiceContainers(stackServicePair.Service, stackServicePair.Stack)
if err != nil {
logrus.Fatalf("Could not get containers from. %s", err)
}
for _, rNode := range rancherNodes {
n := &drone.Node{
Addr: "tcp://" + rNode.PrimaryIp + ":2375",
}
nodes = append(nodes, n)
}
return nodes, nil
}
// Path should be /stacks/<stackname>/services/<servicename>
func segmentPathToStackServicePair(path string) (*RancherStackServicePair, error) {
rSSP := &RancherStackServicePair{}
err := errors.New("Unable to parse path: " + path + "\n" +
"expected format is: /stacks/<stackname>/services/<servicename>")
path = strings.TrimPrefix(path, "/")
segments := strings.Split(path, "/")
if len(segments) != 4 {
logrus.Error(len(segments))
logrus.Error(segments)
return rSSP, err
}
if segments[0] == "stacks" && segments[2] == "services" {
rSSP.Stack = segments[1]
rSSP.Service = segments[3]
err = nil
}
return rSSP, err
}