prometheus/discovery/moby/docker_test.go

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// Copyright 2021 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package moby
import (
"context"
"fmt"
"testing"
"github.com/go-kit/log"
"github.com/prometheus/common/model"
"github.com/stretchr/testify/require"
"gopkg.in/yaml.v2"
)
func TestDockerSDRefresh(t *testing.T) {
sdmock := NewSDMock(t, "dockerprom")
sdmock.Setup()
e := sdmock.Endpoint()
url := e[:len(e)-1]
cfgString := fmt.Sprintf(`
---
host: %s
`, url)
var cfg DockerSDConfig
require.NoError(t, yaml.Unmarshal([]byte(cfgString), &cfg))
d, err := NewDockerDiscovery(&cfg, log.NewNopLogger())
require.NoError(t, err)
ctx := context.Background()
tgs, err := d.refresh(ctx)
require.NoError(t, err)
require.Equal(t, 1, len(tgs))
tg := tgs[0]
require.NotNil(t, tg)
require.NotNil(t, tg.Targets)
require.Equal(t, 2, len(tg.Targets))
for i, lbls := range []model.LabelSet{
{
"__address__": "172.19.0.2:9100",
"__meta_docker_container_id": "c301b928faceb1a18fe379f6bc178727ef920bb30b0f9b8592b32b36255a0eca",
"__meta_docker_container_label_com_docker_compose_project": "dockersd",
"__meta_docker_container_label_com_docker_compose_service": "node",
"__meta_docker_container_label_com_docker_compose_version": "1.25.0",
"__meta_docker_container_label_maintainer": "The Prometheus Authors <prometheus-developers@googlegroups.com>",
"__meta_docker_container_label_prometheus_job": "node",
"__meta_docker_container_name": "/dockersd_node_1",
"__meta_docker_container_network_mode": "dockersd_default",
"__meta_docker_network_id": "7189986ab399e144e52a71b7451b4e04e2158c044b4cd2f3ae26fc3a285d3798",
"__meta_docker_network_ingress": "false",
"__meta_docker_network_internal": "false",
"__meta_docker_network_ip": "172.19.0.2",
"__meta_docker_network_label_com_docker_compose_network": "default",
"__meta_docker_network_label_com_docker_compose_project": "dockersd",
"__meta_docker_network_label_com_docker_compose_version": "1.25.0",
"__meta_docker_network_name": "dockersd_default",
"__meta_docker_network_scope": "local",
"__meta_docker_port_private": "9100",
},
{
"__address__": "172.19.0.3:80",
"__meta_docker_container_id": "c301b928faceb1a18fe379f6bc178727ef920bb30b0f9b8592b32b36255a0eca",
"__meta_docker_container_label_com_docker_compose_project": "dockersd",
"__meta_docker_container_label_com_docker_compose_service": "noport",
"__meta_docker_container_label_com_docker_compose_version": "1.25.0",
"__meta_docker_container_label_maintainer": "The Prometheus Authors <prometheus-developers@googlegroups.com>",
"__meta_docker_container_label_prometheus_job": "noport",
"__meta_docker_container_name": "/dockersd_noport_1",
"__meta_docker_container_network_mode": "dockersd_default",
"__meta_docker_network_id": "7189986ab399e144e52a71b7451b4e04e2158c044b4cd2f3ae26fc3a285d3798",
"__meta_docker_network_ingress": "false",
"__meta_docker_network_internal": "false",
"__meta_docker_network_ip": "172.19.0.3",
"__meta_docker_network_label_com_docker_compose_network": "default",
"__meta_docker_network_label_com_docker_compose_project": "dockersd",
"__meta_docker_network_label_com_docker_compose_version": "1.25.0",
"__meta_docker_network_name": "dockersd_default",
"__meta_docker_network_scope": "local",
},
} {
t.Run(fmt.Sprintf("item %d", i), func(t *testing.T) {
require.Equal(t, lbls, tg.Targets[i])
})
}
}