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data_source_cert_request.go
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data_source_cert_request.go
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package tls
import (
"crypto/rand"
"crypto/x509"
"encoding/pem"
"fmt"
"net"
"github.com/hashicorp/terraform/helper/schema"
)
const pemCertReqType = "CERTIFICATE REQUEST"
func dataSourceCertRequest() *schema.Resource {
return &schema.Resource{
Read: ReadCertRequest,
Schema: map[string]*schema.Schema{
"dns_names": &schema.Schema{
Type: schema.TypeList,
Optional: true,
Description: "List of DNS names to use as subjects of the certificate",
Elem: &schema.Schema{
Type: schema.TypeString,
},
},
"ip_addresses": &schema.Schema{
Type: schema.TypeList,
Optional: true,
Description: "List of IP addresses to use as subjects of the certificate",
Elem: &schema.Schema{
Type: schema.TypeString,
},
},
"key_algorithm": &schema.Schema{
Type: schema.TypeString,
Required: true,
Description: "Name of the algorithm to use to generate the certificate's private key",
},
"private_key_pem": &schema.Schema{
Type: schema.TypeString,
Required: true,
Description: "PEM-encoded private key that the certificate will belong to",
StateFunc: func(v interface{}) string {
return hashForState(v.(string))
},
},
"subject": &schema.Schema{
Type: schema.TypeList,
Required: true,
Elem: nameSchema,
},
"cert_request_pem": &schema.Schema{
Type: schema.TypeString,
Computed: true,
},
},
}
}
func ReadCertRequest(d *schema.ResourceData, meta interface{}) error {
key, err := parsePrivateKey(d, "private_key_pem", "key_algorithm")
if err != nil {
return err
}
subjectConfs := d.Get("subject").([]interface{})
if len(subjectConfs) != 1 {
return fmt.Errorf("must have exactly one 'subject' block")
}
subjectConf := subjectConfs[0].(map[string]interface{})
subject, err := nameFromResourceData(subjectConf)
if err != nil {
return fmt.Errorf("invalid subject block: %s", err)
}
certReq := x509.CertificateRequest{
Subject: *subject,
}
dnsNamesI := d.Get("dns_names").([]interface{})
for _, nameI := range dnsNamesI {
certReq.DNSNames = append(certReq.DNSNames, nameI.(string))
}
ipAddressesI := d.Get("ip_addresses").([]interface{})
for _, ipStrI := range ipAddressesI {
ip := net.ParseIP(ipStrI.(string))
if ip == nil {
return fmt.Errorf("invalid IP address %#v", ipStrI.(string))
}
certReq.IPAddresses = append(certReq.IPAddresses, ip)
}
certReqBytes, err := x509.CreateCertificateRequest(rand.Reader, &certReq, key)
if err != nil {
return fmt.Errorf("Error creating certificate request: %s", err)
}
certReqPem := string(pem.EncodeToMemory(&pem.Block{Type: pemCertReqType, Bytes: certReqBytes}))
d.SetId(hashForState(string(certReqBytes)))
d.Set("cert_request_pem", certReqPem)
return nil
}