Add docker containers to test services.

This commit initializes the needed services which are not mocked
so tests can be executed in any environment with docker.

Some default modifications (i.e: connection strings) were also made to
current tests to accomodate them for this setup.

A docker-compose.yml file is provided with all the necessary parameters
for this services to be initialized. Future services can be added
easily by extending this configuration file

In addition a makefile has been introduced to simplify command execution

plugins/kafka_consumer/kafka_consumer_integration_test.go

@@ -14,6 +14,9 @@ import (
 )
 
 func TestReadsMetricsFromKafka(t *testing.T) {
+	if testing.Short() {
+		t.Skip("Skipping integration test in short mode")
+	}
 	var zkPeers, brokerPeers []string
 
 	if len(os.Getenv("ZOOKEEPER_PEERS")) == 0 {

plugins/mysql/mysql_test.go

@@ -11,7 +11,7 @@ import (
 
 func TestMysqlGeneratesMetrics(t *testing.T) {
 	m := &Mysql{
-		Servers: []string{""},
+		Servers: []string{"root@tcp(localhost:3306)/"},
 	}
 
 	var acc testutil.Accumulator
@@ -53,7 +53,9 @@ func TestMysqlGeneratesMetrics(t *testing.T) {
 }
 
 func TestMysqlDefaultsToLocal(t *testing.T) {
-	m := &Mysql{}
+	m := &Mysql{
+		Servers: []string{"root@tcp(localhost:3306)/"},
+	}
 
 	var acc testutil.Accumulator
 

plugins/postgresql/postgresql_test.go

@@ -12,7 +12,7 @@ func TestPostgresqlGeneratesMetrics(t *testing.T) {
 	p := &Postgresql{
 		Servers: []*Server{
 			{
-				Address:   "sslmode=disable",
+				Address:   "host=localhost user=postgres sslmode=disable",
 				Databases: []string{"postgres"},
 			},
 		},
@@ -57,7 +57,7 @@ func TestPostgresqlTagsMetricsWithDatabaseName(t *testing.T) {
 	p := &Postgresql{
 		Servers: []*Server{
 			{
-				Address:   "sslmode=disable",
+				Address:   "host=localhost user=postgres sslmode=disable",
 				Databases: []string{"postgres"},
 			},
 		},
@@ -78,7 +78,7 @@ func TestPostgresqlDefaultsToAllDatabases(t *testing.T) {
 	p := &Postgresql{
 		Servers: []*Server{
 			{
-				Address: "sslmode=disable",
+				Address: "host=localhost user=postgres sslmode=disable",
 			},
 		},
 	}

plugins/redis/redis_test.go

@@ -83,7 +83,7 @@ func TestRedisGeneratesMetrics(t *testing.T) {
 	}
 
 	for _, c := range checkInt {
-		assert.NoError(t, acc.ValidateValue(c.name, c.value))
+		assert.True(t, acc.CheckValue(c.name, c.value))
 	}
 
 	checkFloat := []struct {
@@ -98,7 +98,7 @@ func TestRedisGeneratesMetrics(t *testing.T) {
 	}
 
 	for _, c := range checkFloat {
-		assert.NoError(t, acc.ValidateValue(c.name, c.value))
+		assert.True(t, acc.CheckValue(c.name, c.value))
 	}
 }
 
@@ -174,7 +174,7 @@ func TestRedisCanPullStatsFromMultipleServers(t *testing.T) {
 	}
 
 	for _, c := range checkInt {
-		assert.NoError(t, acc.ValidateValue(c.name, c.value))
+		assert.True(t, acc.CheckValue(c.name, c.value))
 	}
 
 	checkFloat := []struct {
@@ -189,7 +189,7 @@ func TestRedisCanPullStatsFromMultipleServers(t *testing.T) {
 	}
 
 	for _, c := range checkFloat {
-		assert.NoError(t, acc.ValidateValue(c.name, c.value))
+		assert.True(t, acc.CheckValue(c.name, c.value))
 	}
 }