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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,129 @@ | ||
| // Package internal provides wrapper for creating aws sessions | ||
| package aws | ||
|
|
||
| import ( | ||
| "encoding/base64" | ||
| "errors" | ||
| "fmt" | ||
|
|
||
| "github.com/aws/aws-sdk-go/aws" | ||
| "github.com/aws/aws-sdk-go/aws/awserr" | ||
| "github.com/aws/aws-sdk-go/aws/session" | ||
| "github.com/aws/aws-sdk-go/service/eks" | ||
| "github.com/mateimicu/kdiscover/internal/cluster" | ||
| log "github.com/sirupsen/logrus" | ||
| ) | ||
|
|
||
| //type ClusterListDescriber struct { | ||
| type EKSClient struct { | ||
| EKS *eks.EKS | ||
| Region string | ||
| } | ||
|
|
||
| func (c *EKSClient) String() string { | ||
| return fmt.Sprintf("EKS Client for region %v", c.Region) | ||
| } | ||
|
|
||
| func (c *EKSClient) GetClusters(ch chan<- *cluster.Cluster) { | ||
| input := &eks.ListClustersInput{} | ||
|
|
||
| err := c.EKS.ListClustersPages(input, | ||
| func(page *eks.ListClustersOutput, lastPage bool) bool { | ||
| log.WithFields(log.Fields{ | ||
| "svc": c.String(), | ||
| "page": page.GoString(), | ||
| }).Debug("Parse page") | ||
| for _, cluster := range page.Clusters { | ||
| log.WithFields(log.Fields{ | ||
| "svc": c.String(), | ||
| "cluster": *cluster, | ||
| }).Debug("Found cluster") | ||
| if cls, err := c.detailCluster(*cluster); err == nil { | ||
| ch <- cls | ||
| } else { | ||
| log.WithFields(log.Fields{ | ||
| "svc": c.String(), | ||
| "cluster": *cluster, | ||
| "err": err, | ||
| }).Warn("Can't get details on the cluster") | ||
| } | ||
| } | ||
|
|
||
| if lastPage { | ||
| log.WithFields(log.Fields{ | ||
| "svc": c.String(), | ||
| }).Debug("hit last page") | ||
| return false | ||
| } | ||
| return true | ||
| }) | ||
|
|
||
| if err != nil { | ||
| log.WithFields(log.Fields{ | ||
| "err": err, | ||
| "svc": c.String(), | ||
| }).Warn("Can't list clusters") | ||
| } | ||
|
|
||
| close(ch) | ||
| } | ||
|
|
||
| func (c *EKSClient) detailCluster(cName string) (*cluster.Cluster, error) { | ||
| input := &eks.DescribeClusterInput{ | ||
| Name: aws.String(cName), | ||
| } | ||
|
|
||
| result, err := c.EKS.DescribeCluster(input) | ||
| if err != nil { | ||
| // TODO(mmicu): handle errors better here | ||
| if aerr, ok := err.(awserr.Error); ok { | ||
| log.Warn(aerr.Error()) | ||
| } else { | ||
| log.Warn(err.Error()) | ||
| } | ||
| msg := fmt.Sprintf("Can't fetch more details for the cluster %v", cName) | ||
| log.WithFields(log.Fields{ | ||
| "cluster-name": cName, | ||
| "svc": c.String(), | ||
| }).Warn(msg) | ||
| return nil, errors.New(msg) | ||
| } | ||
|
|
||
| certificatAuthorityData, err := base64.StdEncoding.DecodeString(*result.Cluster.CertificateAuthority.Data) | ||
| if err != nil { | ||
| log.WithFields(log.Fields{ | ||
| "cluster-name": *result.Cluster.Name, | ||
| "arn": *result.Cluster.Arn, | ||
| "certificate-authority-data": *result.Cluster.CertificateAuthority.Data, | ||
| "svc": c.String(), | ||
| }).Error("Can't decode the Certificate Authority Data") | ||
| return nil, err | ||
| } | ||
|
|
||
| cls := cluster.NewCluster() | ||
| cls.Name = *result.Cluster.Name | ||
| cls.ID = *result.Cluster.Arn | ||
| cls.Endpoint = *result.Cluster.Endpoint | ||
| cls.CertificateAuthorityData = string(certificatAuthorityData) | ||
| cls.Status = *result.Cluster.Status | ||
| cls.Region = c.Region | ||
|
|
||
| return cls, nil | ||
| } | ||
|
|
||
| func NewEKS(region string) (*EKSClient, error) { | ||
| sess, err := session.NewSession(&aws.Config{ | ||
| Region: aws.String(region), | ||
| }) | ||
| if err != nil { | ||
| log.WithFields(log.Fields{ | ||
| "region": region, | ||
| "error": err.Error(), | ||
| }).Error("Failed to create AWS SDK session") | ||
| return nil, err | ||
| } | ||
| return &EKSClient{ | ||
| EKS: eks.New(sess), | ||
| Region: region, | ||
| }, nil | ||
| } |
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