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TLS Support #11

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13 changes: 12 additions & 1 deletion main.go
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Original file line number Diff line number Diff line change
Expand Up @@ -6,6 +6,7 @@ import (
"os"
"os/signal"
"strconv"
"fmt"

dockerApi "github.com/fsouza/go-dockerclient"
)
Expand All @@ -15,6 +16,7 @@ var dnsPort = flag.String("dns-port", getopt("DNS_PORT", "53"), "Port for the DN
var dnsRecursor = flag.String("dns-recursor", getopt("DNS_RECURSOR", ""), "DNS recursor for non-local addresses")
var dnsDomain = flag.String("dns-domain", getopt("DNS_DOMAIN", "localdomain"), "The domain that Docker-spy should consider local")
var dockerHost = flag.String("docker-host", getopt("DOCKER_HOST", "unix:///var/run/docker.sock"), "Address for the Docker daemon")
var dockerCertPath = flag.String("docker-cert-path", getopt("DOCKER_CERT_PATH", ""), "Location of certificates for TLS")

func getopt(name, def string) string {
if env := os.Getenv(name); env != "" {
Expand Down Expand Up @@ -45,7 +47,16 @@ func main() {

log.Println("Listening for container events...")

docker, err := dockerApi.NewClient(*dockerHost)
var docker *dockerApi.Client

if *dockerCertPath == "" {
docker, err = dockerApi.NewClient(*dockerHost)
} else {
ca := fmt.Sprintf("%s/ca.pem", *dockerCertPath)
cert := fmt.Sprintf("%s/cert.pem", *dockerCertPath)
key := fmt.Sprintf("%s/key.pem", *dockerCertPath)
docker, err = dockerApi.NewTLSClient(*dockerHost, cert, key, ca)
}

if err != nil {
log.Fatal(err)
Expand Down