add Dockerfile (#94)

* add Dockerfile to build

Dockerfile

@@ -0,0 +1,6 @@
+FROM alpine:3.4
+MAINTAINER Kolide Developers <engineering@kolide.co>
+
+COPY ./build/kolide /kolide
+
+CMD ["/kolide", "serve"]

Makefile

@@ -45,3 +45,11 @@ restart: stop
 	kolide serve & echo $$! > $(PID_FILE)
 
 endif
+
+docker:
+	# pull the latest version of the build container
+	docker pull kolide/kolide-builder:1.6
+	# run build step to build linux binary
+	docker run --rm -it -v $(shell pwd):/go/src/github.com/kolide/kolide-ose -v ${GOPATH}/pkg:/go/pkg kolide/kolide-builder:1.6 -B
+	# compose up
+	docker-compose up

development.yml

@@ -0,0 +1,27 @@
+mysql:
+  image: mysql:5.7.13
+  environment:
+    MYSQL_ROOT_PASSWORD: toor
+    MYSQL_DATABASE: kolide
+    MYSQL_USER: kolide
+    MYSQL_PASSWORD: kolide
+  ports:
+    - "3306:3306"
+
+mailhog:
+  image: mailhog/mailhog:latest
+  ports:
+    - "8025:8025"
+    - "1025:1025"
+
+test:
+   image: kolide/kolide-builder:1.6
+   environment:
+       MYSQL_ADDR: 127.0.0.1
+   links:
+       - mysql
+       - mailhog
+   command:
+       - -C
+   volumes:
+       - ./:/go/src/github.com/kolide/kolide-ose

docker-compose.yml

@@ -8,20 +8,14 @@ mysql:
   ports:
     - "3306:3306"
 
-mailhog:
-  image: mailhog/mailhog:latest
-  ports:
-    - "8025:8025"
-    - "1025:1025"
-
-test:
-    image: kolide/kolide-builder:1.6
+kolide:
+  build: .
   environment:
-        MYSQL_ADDR: 127.0.0.1
+    KOLIDE_SERVER_CERT: /osquery/kolide.crt
+    KOLIDE_SERVER_KEY: /osquery/kolide.key
+  ports: 
+    - "8080:8080"
   links:
     - mysql
-        - mailhog
-    command:
-        - -C
   volumes:
-        - ./:/go/src/github.com/kolide/kolide-ose
+    - ./tools/osquery:/osquery

kolide.go

@@ -158,13 +158,22 @@ $7777777....$....$777$.....+DI..DDD..DDI...8D...D8......$D:..8D....8D...8D......
 			},
 		}
 
-		connString := fmt.Sprintf(
+		// get mysql connection from config or docker link
+		// temporary until config is redone
+		var connString string
+		if os.Getenv("MYSQL_PORT_3306_TCP_ADDR") != "" {
+			// try connection from docker link
+			connString = dockerMySQLconnString()
+		} else {
+			connString = fmt.Sprintf(
 				"%s:%s@(%s)/%s?charset=utf8&parseTime=True&loc=Local",
 				viper.GetString("mysql.username"),
 				viper.GetString("mysql.password"),
 				viper.GetString("mysql.address"),
 				viper.GetString("mysql.database"),
 			)
+		}
+
 		ds, err := datastore.New("gorm-mysql", connString)
 		if err != nil {
 			logrus.WithError(err).Fatal("error creating db connection")
@@ -228,6 +237,29 @@ var dbCmd = &cobra.Command{
 	},
 }
 
+// detect that docker --link to mysql container is up and use
+// the default env vars
+func dockerMySQLconnString() string {
+	var (
+		username = os.Getenv("MYSQL_ENV_MYSQL_USER")
+		password = os.Getenv("MYSQL_ENV_MYSQL_PASSWORD")
+		host     = os.Getenv("MYSQL_PORT_3306_TCP_ADDR")
+		port     = os.Getenv("MYSQL_PORT_3306_TCP_PORT")
+		dbName   = os.Getenv("MYSQL_ENV_MYSQL_DATABASE")
+	)
+
+	if host == "" {
+		return "" // no docker conn detected
+	}
+	logrus.Infoln("detected docker mysql link, using link environment vars")
+
+	connString := fmt.Sprintf(
+		"%s:%s@(%s:%s)/%s?charset=utf8&parseTime=True&loc=Local",
+		username, password, host, port, dbName,
+	)
+	return connString
+}
+
 // Due to a deficiency in viper (https://github.com/spf13/viper/issues/71), one
 // can not set the default values of nested config elements. For example, if the
 // "mysql" section of the config allows a user to define "username", "password",