mirror of https://github.com/hashicorp/consul
59 lines
1.6 KiB
Go
59 lines
1.6 KiB
Go
|
package agent
|
||
|
|
|
||
|
|
import (
|
||
|
|
"crypto/rand"
|
||
|
|
"crypto/x509"
|
||
|
|
"encoding/base64"
|
||
|
|
"fmt"
|
||
|
|
"net"
|
||
|
|
|
||
|
|
"github.com/pkg/errors"
|
||
|
|
|
||
|
|
"github.com/hashicorp/consul/tlsutil"
|
||
|
|
)
|
||
|
|
|
||
|
|
func newSerfEncryptionKey() (string, error) {
|
||
|
|
key := make([]byte, 32)
|
||
|
|
n, err := rand.Reader.Read(key)
|
||
|
|
if err != nil {
|
||
|
|
return "", errors.Wrap(err, "error reading random data")
|
||
|
|
}
|
||
|
|
if n != 32 {
|
||
|
|
return "", errors.Wrap(err, "couldn't read enough entropy. Generate more entropy!")
|
||
|
|
}
|
||
|
|
|
||
|
|
return base64.StdEncoding.EncodeToString(key), nil
|
||
|
|
}
|
||
|
|
|
||
|
|
func newServerTLSKeyPair(dc string, ctx *BuildContext) (string, string, string, string) {
|
||
|
|
// Generate agent-specific key pair. Borrowed from 'consul tls cert create -server -dc <dc_name>'
|
||
|
|
name := fmt.Sprintf("server.%s.%s", dc, "consul")
|
||
|
|
|
||
|
|
dnsNames := []string{
|
||
|
|
name,
|
||
|
|
"localhost",
|
||
|
|
}
|
||
|
|
ipAddresses := []net.IP{net.ParseIP("127.0.0.1")}
|
||
|
|
extKeyUsage := []x509.ExtKeyUsage{x509.ExtKeyUsageServerAuth, x509.ExtKeyUsageClientAuth}
|
||
|
|
|
||
|
|
signer, err := tlsutil.ParseSigner(ctx.caKey)
|
||
|
|
if err != nil {
|
||
|
|
panic("could not parse signer from CA key")
|
||
|
|
}
|
||
|
|
|
||
|
|
pub, priv, err := tlsutil.GenerateCert(tlsutil.CertOpts{
|
||
|
|
Signer: signer, CA: ctx.caCert, Name: name, Days: 365,
|
||
|
|
DNSNames: dnsNames, IPAddresses: ipAddresses, ExtKeyUsage: extKeyUsage,
|
||
|
|
})
|
||
|
|
|
||
|
|
prefix := fmt.Sprintf("%s-server-%s", dc, "consul")
|
||
|
|
certFileName := fmt.Sprintf("%s-%d.pem", prefix, ctx.index)
|
||
|
|
keyFileName := fmt.Sprintf("%s-%d-key.pem", prefix, ctx.index)
|
||
|
|
|
||
|
|
if err = tlsutil.Verify(ctx.caCert, pub, name); err != nil {
|
||
|
|
panic(fmt.Sprintf("could not verify keypair for %s and %s", certFileName, keyFileName))
|
||
|
|
}
|
||
|
|
|
||
|
|
return keyFileName, priv, certFileName, pub
|
||
|
|
}
|