package docker import ( "reflect" "sort" "testing" "github.com/VictoriaMetrics/VictoriaMetrics/lib/promscrape/discoveryutil" "github.com/VictoriaMetrics/VictoriaMetrics/lib/promutil" ) func TestParseContainers(t *testing.T) { f := func(data string, resultExpected []container) { t.Helper() result, err := parseContainers([]byte(data)) if err != nil { t.Fatalf("parseContainers() error: %s", err) } if !reflect.DeepEqual(result, resultExpected) { t.Fatalf("unexpected result\ngot\n%v\nwant\n%v", result, resultExpected) } } data := `[ { "Id": "90bc3b31aa13da5c0b11af2e228d54b38428a84e25d4e249ae9e9c95e51a0700", "Names": [ "/crow-server" ], "ImageID": "sha256:11045371758ccf9468d807d53d1e1faa100c8ebabe87296bc107d52bdf983378", "Created": 1624440429, "Ports": [ { "IP": "0.0.0.0", "PrivatePort": 8080, "PublicPort": 18081, "Type": "tcp" } ], "Labels": { "com.docker.compose.config-hash": "c9f0bd5bb31921f94cff367d819a30a0cc08d4399080897a6c5cd74b983156ec", "com.docker.compose.container-number": "1", "com.docker.compose.oneoff": "False", "com.docker.compose.project": "crowserver", "com.docker.compose.service": "crow-server", "com.docker.compose.version": "1.11.2" }, "State": "running", "Status": "Up 2 hours", "HostConfig": { "NetworkMode": "bridge" }, "NetworkSettings": { "Networks": { "bridge": { "IPAMConfig": null, "Links": null, "Aliases": null, "NetworkID": "1dd8d1a8bef59943345c7231d7ce8268333ff5a8c5b3c94881e6b4742b447634", "EndpointID": "2bcd751c98578ad1ce3d6798077a3e110535f3dcb0b0735cc84bd1e03905d907", "Gateway": "172.17.0.1", "IPAddress": "172.17.0.2", "IPPrefixLen": 16, "IPv6Gateway": "", "GlobalIPv6Address": "", "GlobalIPv6PrefixLen": 0, "DriverOpts": null } } } }, { "Id": "0e0f72a6eb7d9fb443f0426a66f7b8dd7d3283ab7e3a308b2bed584ac03a33dc", "Names": [ "/crow-web" ], "ImageID": "sha256:36e04dd2f67950179ab62a4ebd1b8b741232263fa1f210496a53335d5820b3af", "Created": 1618302442, "Ports": [ { "IP": "0.0.0.0", "PrivatePort": 8080, "PublicPort": 18082, "Type": "tcp" } ], "Labels": { "com.docker.compose.config-hash": "d99ebd0fde8512366c2d78c367e95ddc74528bb60b7cf0c991c9f4835981e00e", "com.docker.compose.container-number": "1", "com.docker.compose.oneoff": "False", "com.docker.compose.project": "crowweb", "com.docker.compose.service": "crow-web", "com.docker.compose.version": "1.11.2" }, "State": "running", "Status": "Up 2 months", "HostConfig": { "NetworkMode": "bridge" }, "NetworkSettings": { "Networks": { "bridge": { "IPAMConfig": null, "Links": null, "Aliases": null, "NetworkID": "1dd8d1a8bef59943345c7231d7ce8268333ff5a8c5b3c94881e6b4742b447634", "EndpointID": "78d751dfa31923d73e001e5dc5751ad6f9f5ffeb88056fc950f0a952d7f24302", "Gateway": "172.17.0.1", "IPAddress": "172.17.0.3", "IPPrefixLen": 16, "IPv6Gateway": "", "GlobalIPv6Address": "", "GlobalIPv6PrefixLen": 0, "DriverOpts": null } } } } ]` resultExpected := []container{ { ID: "90bc3b31aa13da5c0b11af2e228d54b38428a84e25d4e249ae9e9c95e51a0700", Names: []string{"/crow-server"}, Labels: map[string]string{ "com.docker.compose.config-hash": "c9f0bd5bb31921f94cff367d819a30a0cc08d4399080897a6c5cd74b983156ec", "com.docker.compose.container-number": "1", "com.docker.compose.oneoff": "False", "com.docker.compose.project": "crowserver", "com.docker.compose.service": "crow-server", "com.docker.compose.version": "1.11.2", }, Ports: []containerPort{ { IP: "0.0.0.0", PrivatePort: 8080, PublicPort: 18081, Type: "tcp", }, }, HostConfig: containerHostConfig{ NetworkMode: "bridge", }, NetworkSettings: containerNetworkSettings{ Networks: map[string]containerNetwork{ "bridge": { IPAddress: "172.17.0.2", NetworkID: "1dd8d1a8bef59943345c7231d7ce8268333ff5a8c5b3c94881e6b4742b447634", }, }, }, }, { ID: "0e0f72a6eb7d9fb443f0426a66f7b8dd7d3283ab7e3a308b2bed584ac03a33dc", Names: []string{"/crow-web"}, Labels: map[string]string{ "com.docker.compose.config-hash": "d99ebd0fde8512366c2d78c367e95ddc74528bb60b7cf0c991c9f4835981e00e", "com.docker.compose.container-number": "1", "com.docker.compose.oneoff": "False", "com.docker.compose.project": "crowweb", "com.docker.compose.service": "crow-web", "com.docker.compose.version": "1.11.2", }, Ports: []containerPort{ { IP: "0.0.0.0", PrivatePort: 8080, PublicPort: 18082, Type: "tcp", }, }, HostConfig: containerHostConfig{ NetworkMode: "bridge", }, NetworkSettings: containerNetworkSettings{ Networks: map[string]containerNetwork{ "bridge": { IPAddress: "172.17.0.3", NetworkID: "1dd8d1a8bef59943345c7231d7ce8268333ff5a8c5b3c94881e6b4742b447634", }, }, }, }, } f(data, resultExpected) } func TestAddContainerLabels(t *testing.T) { f := func(c container, networkLabels map[string]*promutil.Labels, labelssExpected []*promutil.Labels) { t.Helper() labelss := addContainersLabels([]container{c}, networkLabels, 8012, "foobar", false) discoveryutil.TestEqualLabelss(t, labelss, labelssExpected) } data := []byte(`[ { "Name": "host", "Id": "6a1989488dcb847c052eda939924d997457d5ecd994f76f35472996c4c75279a", "Created": "2020-08-18T17:18:18.439033107+08:00", "Scope": "local", "Driver": "host", "EnableIPv6": false, "IPAM": { "Driver": "default", "Options": null, "Config": [] }, "Internal": false, "Attachable": false, "Ingress": false, "ConfigFrom": { "Network": "" }, "ConfigOnly": false, "Containers": {}, "Options": {}, "Labels": {} }, { "Name": "none", "Id": "c9668d06973d976527e913ba207a3819275649f347390379ec8356db375cfde3", "Created": "2020-08-18T17:18:18.428827132+08:00", "Scope": "local", "Driver": "null", "EnableIPv6": false, "IPAM": { "Driver": "default", "Options": null, "Config": [] }, "Internal": false, "Attachable": false, "Ingress": false, "ConfigFrom": { "Network": "" }, "ConfigOnly": false, "Containers": {}, "Options": {}, "Labels": {} }, { "Name": "bridge", "Id": "1dd8d1a8bef59943345c7231d7ce8268333ff5a8c5b3c94881e6b4742b447634", "Created": "2021-03-18T14:36:04.290821903+08:00", "Scope": "local", "Driver": "bridge", "EnableIPv6": false, "IPAM": { "Driver": "default", "Options": null, "Config": [ { "Subnet": "172.17.0.0/16", "Gateway": "172.17.0.1" } ] }, "Internal": false, "Attachable": false, "Ingress": false, "ConfigFrom": { "Network": "" }, "ConfigOnly": false, "Containers": {}, "Options": { "com.docker.network.bridge.default_bridge": "true", "com.docker.network.bridge.enable_icc": "true", "com.docker.network.bridge.enable_ip_masquerade": "true", "com.docker.network.bridge.host_binding_ipv4": "0.0.0.0", "com.docker.network.bridge.name": "docker0", "com.docker.network.driver.mtu": "1500" }, "Labels": {} } ]`) networks, err := parseNetworks(data) if err != nil { t.Fatalf("fail to parse networks: %v", err) } networkLabels := getNetworkLabelsByNetworkID(networks) // NetworkMode != host c := container{ ID: "90bc3b31aa13da5c0b11af2e228d54b38428a84e25d4e249ae9e9c95e51a0700", Names: []string{"/crow-server"}, Labels: map[string]string{ "com.docker.compose.config-hash": "c9f0bd5bb31921f94cff367d819a30a0cc08d4399080897a6c5cd74b983156ec", "com.docker.compose.container-number": "1", "com.docker.compose.oneoff": "False", "com.docker.compose.project": "crowserver", "com.docker.compose.service": "crow-server", "com.docker.compose.version": "1.11.2", }, HostConfig: containerHostConfig{ NetworkMode: "bridge", }, NetworkSettings: containerNetworkSettings{ Networks: map[string]containerNetwork{ "host": { IPAddress: "172.17.0.2", NetworkID: "1dd8d1a8bef59943345c7231d7ce8268333ff5a8c5b3c94881e6b4742b447634", }, }, }, } labelssExpected := []*promutil.Labels{ promutil.NewLabelsFromMap(map[string]string{ "__address__": "172.17.0.2:8012", "__meta_docker_container_id": "90bc3b31aa13da5c0b11af2e228d54b38428a84e25d4e249ae9e9c95e51a0700", "__meta_docker_container_label_com_docker_compose_config_hash": "c9f0bd5bb31921f94cff367d819a30a0cc08d4399080897a6c5cd74b983156ec", "__meta_docker_container_label_com_docker_compose_container_number": "1", "__meta_docker_container_label_com_docker_compose_oneoff": "False", "__meta_docker_container_label_com_docker_compose_project": "crowserver", "__meta_docker_container_label_com_docker_compose_service": "crow-server", "__meta_docker_container_label_com_docker_compose_version": "1.11.2", "__meta_docker_container_name": "/crow-server", "__meta_docker_container_network_mode": "bridge", "__meta_docker_network_id": "1dd8d1a8bef59943345c7231d7ce8268333ff5a8c5b3c94881e6b4742b447634", "__meta_docker_network_ingress": "false", "__meta_docker_network_internal": "false", "__meta_docker_network_ip": "172.17.0.2", "__meta_docker_network_name": "bridge", "__meta_docker_network_scope": "local", }), } f(c, networkLabels, labelssExpected) // NetworkMode=host c = container{ ID: "90bc3b31aa13da5c0b11af2e228d54b38428a84e25d4e249ae9e9c95e51a0700", Names: []string{"/crow-server"}, Labels: map[string]string{ "com.docker.compose.config-hash": "c9f0bd5bb31921f94cff367d819a30a0cc08d4399080897a6c5cd74b983156ec", "com.docker.compose.container-number": "1", "com.docker.compose.oneoff": "False", "com.docker.compose.project": "crowserver", "com.docker.compose.service": "crow-server", "com.docker.compose.version": "1.11.2", }, HostConfig: containerHostConfig{ NetworkMode: "host", }, NetworkSettings: containerNetworkSettings{ Networks: map[string]containerNetwork{ "host": { IPAddress: "172.17.0.2", NetworkID: "1dd8d1a8bef59943345c7231d7ce8268333ff5a8c5b3c94881e6b4742b447634", }, }, }, } labelssExpected = []*promutil.Labels{ promutil.NewLabelsFromMap(map[string]string{ "__address__": "foobar", "__meta_docker_container_id": "90bc3b31aa13da5c0b11af2e228d54b38428a84e25d4e249ae9e9c95e51a0700", "__meta_docker_container_label_com_docker_compose_config_hash": "c9f0bd5bb31921f94cff367d819a30a0cc08d4399080897a6c5cd74b983156ec", "__meta_docker_container_label_com_docker_compose_container_number": "1", "__meta_docker_container_label_com_docker_compose_oneoff": "False", "__meta_docker_container_label_com_docker_compose_project": "crowserver", "__meta_docker_container_label_com_docker_compose_service": "crow-server", "__meta_docker_container_label_com_docker_compose_version": "1.11.2", "__meta_docker_container_name": "/crow-server", "__meta_docker_container_network_mode": "host", "__meta_docker_network_id": "1dd8d1a8bef59943345c7231d7ce8268333ff5a8c5b3c94881e6b4742b447634", "__meta_docker_network_ingress": "false", "__meta_docker_network_internal": "false", "__meta_docker_network_ip": "172.17.0.2", "__meta_docker_network_name": "bridge", "__meta_docker_network_scope": "local", }), } f(c, networkLabels, labelssExpected) // get labels from a container c = container{ ID: "90bc3b31aa13da5c0b11af2e228d54b38428a84e25d4e249ae9e9c95e51a0700", Names: []string{"/crow-server"}, Labels: map[string]string{ "com.docker.compose.config-hash": "c9f0bd5bb31921f94cff367d819a30a0cc08d4399080897a6c5cd74b983156ec", "com.docker.compose.container-number": "1", "com.docker.compose.oneoff": "False", "com.docker.compose.project": "crowserver", "com.docker.compose.service": "crow-server", "com.docker.compose.version": "1.11.2", }, Ports: []containerPort{ { IP: "0.0.0.0", PrivatePort: 8080, PublicPort: 18081, Type: "tcp", }, }, HostConfig: containerHostConfig{ NetworkMode: "bridge", }, NetworkSettings: containerNetworkSettings{ Networks: map[string]containerNetwork{ "bridge": { IPAddress: "172.17.0.2", NetworkID: "1dd8d1a8bef59943345c7231d7ce8268333ff5a8c5b3c94881e6b4742b447634", }, }, }, } labelssExpected = []*promutil.Labels{ promutil.NewLabelsFromMap(map[string]string{ "__address__": "172.17.0.2:8080", "__meta_docker_container_id": "90bc3b31aa13da5c0b11af2e228d54b38428a84e25d4e249ae9e9c95e51a0700", "__meta_docker_container_label_com_docker_compose_config_hash": "c9f0bd5bb31921f94cff367d819a30a0cc08d4399080897a6c5cd74b983156ec", "__meta_docker_container_label_com_docker_compose_container_number": "1", "__meta_docker_container_label_com_docker_compose_oneoff": "False", "__meta_docker_container_label_com_docker_compose_project": "crowserver", "__meta_docker_container_label_com_docker_compose_service": "crow-server", "__meta_docker_container_label_com_docker_compose_version": "1.11.2", "__meta_docker_container_name": "/crow-server", "__meta_docker_container_network_mode": "bridge", "__meta_docker_network_id": "1dd8d1a8bef59943345c7231d7ce8268333ff5a8c5b3c94881e6b4742b447634", "__meta_docker_network_ingress": "false", "__meta_docker_network_internal": "false", "__meta_docker_network_ip": "172.17.0.2", "__meta_docker_network_name": "bridge", "__meta_docker_network_scope": "local", "__meta_docker_port_private": "8080", "__meta_docker_port_public": "18081", "__meta_docker_port_public_ip": "0.0.0.0", }), } f(c, networkLabels, labelssExpected) } func TestDockerMultiNetworkLabels(t *testing.T) { networkJSON := []byte(`[ { "Name": "dockersd_private", "Id": "e804771e55254a360fdb70dfdd78d3610fdde231b14ef2f837a00ac1eeb9e601", "Created": "2022-03-25T09:21:17.718370976+08:00", "Scope": "local", "Driver": "bridge", "EnableIPv6": false, "IPAM": { "Driver": "default", "Options": null, "Config": [ { "Subnet": "172.20.0.1/16" } ] }, "Internal": false, "Attachable": false, "Ingress": false, "ConfigFrom": { "Network": "" }, "ConfigOnly": false, "Containers": {}, "Options": {}, "Labels": {} }, { "Name": "dockersd_private1", "Id": "bfcf66a6b64f7d518f009e34290dc3f3c66a08164257ad1afc3bd31d75f656e8", "Created": "2022-03-25T09:21:17.718370976+08:00", "Scope": "local", "Driver": "bridge", "EnableIPv6": false, "IPAM": { "Driver": "default", "Options": null, "Config": [ { "Subnet": "172.21.0.1/16" } ] }, "Internal": false, "Attachable": false, "Ingress": false, "ConfigFrom": { "Network": "" }, "ConfigOnly": false, "Containers": {}, "Options": {}, "Labels": {} } ]`) containerJSON := []byte(`[ { "Id": "f84b2a0cfaa58d9e70b0657e2b3c6f44f0e973de4163a871299b4acf127b224f", "Names": [ "/dockersd_multi_networks" ], "Image": "mysql:5.7.29", "ImageID": "sha256:16ae2f4625ba63a250462bedeece422e741de9f0caf3b1d89fd5b257aca80cd1", "Command": "mysqld", "Created": 1616273136, "Ports": [ { "PrivatePort": 3306, "Type": "tcp" }, { "PrivatePort": 33060, "Type": "tcp" } ], "Labels": { "com.docker.compose.project": "dockersd", "com.docker.compose.service": "mysql", "com.docker.compose.version": "2.2.2" }, "State": "running", "Status": "Up 40 seconds", "HostConfig": { "NetworkMode": "dockersd_private_none" }, "NetworkSettings": { "Networks": { "dockersd_private": { "IPAMConfig": null, "Links": null, "Aliases": null, "NetworkID": "e804771e55254a360fdb70dfdd78d3610fdde231b14ef2f837a00ac1eeb9e601", "EndpointID": "972d6807997369605ace863af58de6cb90c787a5bf2ffc4105662d393ae539b7", "Gateway": "172.20.0.1", "IPAddress": "172.20.0.3", "IPPrefixLen": 16, "IPv6Gateway": "", "GlobalIPv6Address": "", "GlobalIPv6PrefixLen": 0, "MacAddress": "02:42:ac:14:00:02", "DriverOpts": null }, "dockersd_private1": { "IPAMConfig": {}, "Links": null, "Aliases": [ "mysql", "mysql", "f9ade4b83199" ], "NetworkID": "bfcf66a6b64f7d518f009e34290dc3f3c66a08164257ad1afc3bd31d75f656e8", "EndpointID": "91a98405344ee1cb7d977cafabe634837876651544b32da20a5e0155868e6f5f", "Gateway": "172.21.0.1", "IPAddress": "172.21.0.3", "IPPrefixLen": 24, "IPv6Gateway": "", "GlobalIPv6Address": "", "GlobalIPv6PrefixLen": 0, "MacAddress": "02:42:ac:15:00:02", "DriverOpts": null } } }, "Mounts": [] } ] `) networks, err := parseNetworks(networkJSON) if err != nil { t.Fatalf("fail to parse networks: %v", err) } networkLabels := getNetworkLabelsByNetworkID(networks) containers, err := parseContainers(containerJSON) if err != nil { t.Fatalf("parseContainers() error: %s", err) } // matchFirstNetwork = false labelssExpected := []*promutil.Labels{ promutil.NewLabelsFromMap(map[string]string{ "__address__": "172.20.0.3:3306", "__meta_docker_container_id": "f84b2a0cfaa58d9e70b0657e2b3c6f44f0e973de4163a871299b4acf127b224f", "__meta_docker_container_label_com_docker_compose_project": "dockersd", "__meta_docker_container_label_com_docker_compose_service": "mysql", "__meta_docker_container_label_com_docker_compose_version": "2.2.2", "__meta_docker_container_name": "/dockersd_multi_networks", "__meta_docker_container_network_mode": "dockersd_private_none", "__meta_docker_network_id": "e804771e55254a360fdb70dfdd78d3610fdde231b14ef2f837a00ac1eeb9e601", "__meta_docker_network_ingress": "false", "__meta_docker_network_internal": "false", "__meta_docker_network_ip": "172.20.0.3", "__meta_docker_network_name": "dockersd_private", "__meta_docker_network_scope": "local", "__meta_docker_port_private": "3306", }), promutil.NewLabelsFromMap(map[string]string{ "__address__": "172.20.0.3:33060", "__meta_docker_container_id": "f84b2a0cfaa58d9e70b0657e2b3c6f44f0e973de4163a871299b4acf127b224f", "__meta_docker_container_label_com_docker_compose_project": "dockersd", "__meta_docker_container_label_com_docker_compose_service": "mysql", "__meta_docker_container_label_com_docker_compose_version": "2.2.2", "__meta_docker_container_name": "/dockersd_multi_networks", "__meta_docker_container_network_mode": "dockersd_private_none", "__meta_docker_network_id": "e804771e55254a360fdb70dfdd78d3610fdde231b14ef2f837a00ac1eeb9e601", "__meta_docker_network_ingress": "false", "__meta_docker_network_internal": "false", "__meta_docker_network_ip": "172.20.0.3", "__meta_docker_network_name": "dockersd_private", "__meta_docker_network_scope": "local", "__meta_docker_port_private": "33060", }), promutil.NewLabelsFromMap(map[string]string{ "__address__": "172.21.0.3:3306", "__meta_docker_container_id": "f84b2a0cfaa58d9e70b0657e2b3c6f44f0e973de4163a871299b4acf127b224f", "__meta_docker_container_label_com_docker_compose_project": "dockersd", "__meta_docker_container_label_com_docker_compose_service": "mysql", "__meta_docker_container_label_com_docker_compose_version": "2.2.2", "__meta_docker_container_name": "/dockersd_multi_networks", "__meta_docker_container_network_mode": "dockersd_private_none", "__meta_docker_network_id": "bfcf66a6b64f7d518f009e34290dc3f3c66a08164257ad1afc3bd31d75f656e8", "__meta_docker_network_ingress": "false", "__meta_docker_network_internal": "false", "__meta_docker_network_ip": "172.21.0.3", "__meta_docker_network_name": "dockersd_private1", "__meta_docker_network_scope": "local", "__meta_docker_port_private": "3306", }), promutil.NewLabelsFromMap(map[string]string{ "__address__": "172.21.0.3:33060", "__meta_docker_container_id": "f84b2a0cfaa58d9e70b0657e2b3c6f44f0e973de4163a871299b4acf127b224f", "__meta_docker_container_label_com_docker_compose_project": "dockersd", "__meta_docker_container_label_com_docker_compose_service": "mysql", "__meta_docker_container_label_com_docker_compose_version": "2.2.2", "__meta_docker_container_name": "/dockersd_multi_networks", "__meta_docker_container_network_mode": "dockersd_private_none", "__meta_docker_network_id": "bfcf66a6b64f7d518f009e34290dc3f3c66a08164257ad1afc3bd31d75f656e8", "__meta_docker_network_ingress": "false", "__meta_docker_network_internal": "false", "__meta_docker_network_ip": "172.21.0.3", "__meta_docker_network_name": "dockersd_private1", "__meta_docker_network_scope": "local", "__meta_docker_port_private": "33060", }), } labelss := addContainersLabels(containers, networkLabels, 80, "localhost", false) discoveryutil.TestEqualLabelss(t, sortLabelss(labelss), sortLabelss(labelssExpected)) // matchFirstNetwork = true, so labels of `dockersd_private1` are removed labelssExpected = []*promutil.Labels{ promutil.NewLabelsFromMap(map[string]string{ "__address__": "172.20.0.3:3306", "__meta_docker_container_id": "f84b2a0cfaa58d9e70b0657e2b3c6f44f0e973de4163a871299b4acf127b224f", "__meta_docker_container_label_com_docker_compose_project": "dockersd", "__meta_docker_container_label_com_docker_compose_service": "mysql", "__meta_docker_container_label_com_docker_compose_version": "2.2.2", "__meta_docker_container_name": "/dockersd_multi_networks", "__meta_docker_container_network_mode": "dockersd_private_none", "__meta_docker_network_id": "e804771e55254a360fdb70dfdd78d3610fdde231b14ef2f837a00ac1eeb9e601", "__meta_docker_network_ingress": "false", "__meta_docker_network_internal": "false", "__meta_docker_network_ip": "172.20.0.3", "__meta_docker_network_name": "dockersd_private", "__meta_docker_network_scope": "local", "__meta_docker_port_private": "3306", }), promutil.NewLabelsFromMap(map[string]string{ "__address__": "172.20.0.3:33060", "__meta_docker_container_id": "f84b2a0cfaa58d9e70b0657e2b3c6f44f0e973de4163a871299b4acf127b224f", "__meta_docker_container_label_com_docker_compose_project": "dockersd", "__meta_docker_container_label_com_docker_compose_service": "mysql", "__meta_docker_container_label_com_docker_compose_version": "2.2.2", "__meta_docker_container_name": "/dockersd_multi_networks", "__meta_docker_container_network_mode": "dockersd_private_none", "__meta_docker_network_id": "e804771e55254a360fdb70dfdd78d3610fdde231b14ef2f837a00ac1eeb9e601", "__meta_docker_network_ingress": "false", "__meta_docker_network_internal": "false", "__meta_docker_network_ip": "172.20.0.3", "__meta_docker_network_name": "dockersd_private", "__meta_docker_network_scope": "local", "__meta_docker_port_private": "33060", }), } labelss = addContainersLabels(containers, networkLabels, 80, "localhost", true) discoveryutil.TestEqualLabelss(t, sortLabelss(labelss), sortLabelss(labelssExpected)) } // TestDockerLinkedNetworkSettings test the case when `NetworkMode` of a container linked to another container: // "container:f9ade4b83199d6f83020b7c0bfd1e8281b19dbf9e6cef2cf89bc45c8f8d20fe8" func TestDockerLinkedNetworkSettings(t *testing.T) { networkJSON := []byte(`[ { "Name": "dockersd_private", "Id": "e804771e55254a360fdb70dfdd78d3610fdde231b14ef2f837a00ac1eeb9e601", "Created": "2022-03-25T09:21:17.718370976+08:00", "Scope": "local", "Driver": "bridge", "EnableIPv6": false, "IPAM": { "Driver": "default", "Options": null, "Config": [ { "Subnet": "172.20.0.1/16" } ] }, "Internal": false, "Attachable": false, "Ingress": false, "ConfigFrom": { "Network": "" }, "ConfigOnly": false, "Containers": {}, "Options": {}, "Labels": {} }, { "Name": "dockersd_private1", "Id": "bfcf66a6b64f7d518f009e34290dc3f3c66a08164257ad1afc3bd31d75f656e8", "Created": "2022-03-25T09:21:17.718370976+08:00", "Scope": "local", "Driver": "bridge", "EnableIPv6": false, "IPAM": { "Driver": "default", "Options": null, "Config": [ { "Subnet": "172.21.0.1/16" } ] }, "Internal": false, "Attachable": false, "Ingress": false, "ConfigFrom": { "Network": "" }, "ConfigOnly": false, "Containers": {}, "Options": {}, "Labels": {} } ]`) containerJSON := []byte(`[ { "Id": "f9ade4b83199d6f83020b7c0bfd1e8281b19dbf9e6cef2cf89bc45c8f8d20fe8", "Names": [ "/dockersd_mysql" ], "Image": "mysql:5.7.29", "ImageID": "sha256:5d9483f9a7b21c87e0f5b9776c3e06567603c28c0062013eda127c968175f5e8", "Command": "mysqld", "Created": 1616273136, "Ports": [ { "PrivatePort": 3306, "Type": "tcp" }, { "PrivatePort": 33060, "Type": "tcp" } ], "Labels": { "com.docker.compose.project": "dockersd", "com.docker.compose.service": "mysql", "com.docker.compose.version": "2.2.2" }, "State": "running", "Status": "Up 40 seconds", "HostConfig": { "NetworkMode": "dockersd_private" }, "NetworkSettings": { "Networks": { "dockersd_private": { "IPAMConfig": null, "Links": null, "Aliases": null, "NetworkID": "e804771e55254a360fdb70dfdd78d3610fdde231b14ef2f837a00ac1eeb9e601", "EndpointID": "80f8a61b37701a9991bb98c75ddd23fd9b7c16b5575ca81343f6b44ff4a2a9d9", "Gateway": "172.20.0.1", "IPAddress": "172.20.0.2", "IPPrefixLen": 16, "IPv6Gateway": "", "GlobalIPv6Address": "", "GlobalIPv6PrefixLen": 0, "MacAddress": "02:42:ac:14:00:0a", "DriverOpts": null }, "dockersd_private1": { "IPAMConfig": {}, "Links": null, "Aliases": [ "mysql", "mysql", "f9ade4b83199" ], "NetworkID": "bfcf66a6b64f7d518f009e34290dc3f3c66a08164257ad1afc3bd31d75f656e8", "EndpointID": "f80921d10e78c99a5907705aae75befea40c3d3e9f820e66ab392f7274be16b8", "Gateway": "172.21.0.1", "IPAddress": "172.21.0.2", "IPPrefixLen": 24, "IPv6Gateway": "", "GlobalIPv6Address": "", "GlobalIPv6PrefixLen": 0, "MacAddress": "02:42:ac:15:00:02", "DriverOpts": null } } }, "Mounts": [] }, { "Id": "59bf76e8816af98856b90dd619c91027145ca501043b1c51756d03b085882e06", "Names": [ "/dockersd_mysql_exporter" ], "Image": "prom/mysqld-exporter:latest", "ImageID": "sha256:121b8a7cd0525dd89aaec58ad7d34c3bb3714740e5a67daf6510ccf71ab219a9", "Command": "/bin/mysqld_exporter", "Created": 1616273136, "Ports": [ { "PrivatePort": 9104, "Type": "tcp" } ], "Labels": { "com.docker.compose.project": "dockersd", "com.docker.compose.service": "mysqlexporter", "com.docker.compose.version": "2.2.2", "maintainer": "The Prometheus Authors " }, "State": "running", "Status": "Up 40 seconds", "HostConfig": { "NetworkMode": "container:f9ade4b83199d6f83020b7c0bfd1e8281b19dbf9e6cef2cf89bc45c8f8d20fe8" }, "NetworkSettings": { "Networks": {} }, "Mounts": [] } ] `) networks, err := parseNetworks(networkJSON) if err != nil { t.Fatalf("fail to parse networks: %v", err) } networkLabels := getNetworkLabelsByNetworkID(networks) containers, err := parseContainers(containerJSON) if err != nil { t.Fatalf("parseContainers() error: %s", err) } labelssExpected := []*promutil.Labels{ promutil.NewLabelsFromMap(map[string]string{ "__address__": "172.20.0.2:3306", "__meta_docker_container_id": "f9ade4b83199d6f83020b7c0bfd1e8281b19dbf9e6cef2cf89bc45c8f8d20fe8", "__meta_docker_container_label_com_docker_compose_project": "dockersd", "__meta_docker_container_label_com_docker_compose_service": "mysql", "__meta_docker_container_label_com_docker_compose_version": "2.2.2", "__meta_docker_container_name": "/dockersd_mysql", "__meta_docker_container_network_mode": "dockersd_private", "__meta_docker_network_id": "e804771e55254a360fdb70dfdd78d3610fdde231b14ef2f837a00ac1eeb9e601", "__meta_docker_network_ingress": "false", "__meta_docker_network_internal": "false", "__meta_docker_network_ip": "172.20.0.2", "__meta_docker_network_name": "dockersd_private", "__meta_docker_network_scope": "local", "__meta_docker_port_private": "3306", }), promutil.NewLabelsFromMap(map[string]string{ "__address__": "172.20.0.2:33060", "__meta_docker_container_id": "f9ade4b83199d6f83020b7c0bfd1e8281b19dbf9e6cef2cf89bc45c8f8d20fe8", "__meta_docker_container_label_com_docker_compose_project": "dockersd", "__meta_docker_container_label_com_docker_compose_service": "mysql", "__meta_docker_container_label_com_docker_compose_version": "2.2.2", "__meta_docker_container_name": "/dockersd_mysql", "__meta_docker_container_network_mode": "dockersd_private", "__meta_docker_network_id": "e804771e55254a360fdb70dfdd78d3610fdde231b14ef2f837a00ac1eeb9e601", "__meta_docker_network_ingress": "false", "__meta_docker_network_internal": "false", "__meta_docker_network_ip": "172.20.0.2", "__meta_docker_network_name": "dockersd_private", "__meta_docker_network_scope": "local", "__meta_docker_port_private": "33060", }), promutil.NewLabelsFromMap(map[string]string{ "__address__": "172.21.0.2:3306", "__meta_docker_container_id": "f9ade4b83199d6f83020b7c0bfd1e8281b19dbf9e6cef2cf89bc45c8f8d20fe8", "__meta_docker_container_label_com_docker_compose_project": "dockersd", "__meta_docker_container_label_com_docker_compose_service": "mysql", "__meta_docker_container_label_com_docker_compose_version": "2.2.2", "__meta_docker_container_name": "/dockersd_mysql", "__meta_docker_container_network_mode": "dockersd_private", "__meta_docker_network_id": "bfcf66a6b64f7d518f009e34290dc3f3c66a08164257ad1afc3bd31d75f656e8", "__meta_docker_network_ingress": "false", "__meta_docker_network_internal": "false", "__meta_docker_network_ip": "172.21.0.2", "__meta_docker_network_name": "dockersd_private1", "__meta_docker_network_scope": "local", "__meta_docker_port_private": "3306", }), promutil.NewLabelsFromMap(map[string]string{ "__address__": "172.21.0.2:33060", "__meta_docker_container_id": "f9ade4b83199d6f83020b7c0bfd1e8281b19dbf9e6cef2cf89bc45c8f8d20fe8", "__meta_docker_container_label_com_docker_compose_project": "dockersd", "__meta_docker_container_label_com_docker_compose_service": "mysql", "__meta_docker_container_label_com_docker_compose_version": "2.2.2", "__meta_docker_container_name": "/dockersd_mysql", "__meta_docker_container_network_mode": "dockersd_private", "__meta_docker_network_id": "bfcf66a6b64f7d518f009e34290dc3f3c66a08164257ad1afc3bd31d75f656e8", "__meta_docker_network_ingress": "false", "__meta_docker_network_internal": "false", "__meta_docker_network_ip": "172.21.0.2", "__meta_docker_network_name": "dockersd_private1", "__meta_docker_network_scope": "local", "__meta_docker_port_private": "33060", }), promutil.NewLabelsFromMap(map[string]string{ "__address__": "172.20.0.2:9104", "__meta_docker_container_id": "59bf76e8816af98856b90dd619c91027145ca501043b1c51756d03b085882e06", "__meta_docker_container_label_com_docker_compose_project": "dockersd", "__meta_docker_container_label_com_docker_compose_service": "mysqlexporter", "__meta_docker_container_label_com_docker_compose_version": "2.2.2", "__meta_docker_container_label_maintainer": "The Prometheus Authors ", "__meta_docker_container_name": "/dockersd_mysql_exporter", "__meta_docker_container_network_mode": "container:f9ade4b83199d6f83020b7c0bfd1e8281b19dbf9e6cef2cf89bc45c8f8d20fe8", "__meta_docker_network_id": "e804771e55254a360fdb70dfdd78d3610fdde231b14ef2f837a00ac1eeb9e601", "__meta_docker_network_ingress": "false", "__meta_docker_network_internal": "false", "__meta_docker_network_ip": "172.20.0.2", "__meta_docker_network_name": "dockersd_private", "__meta_docker_network_scope": "local", "__meta_docker_port_private": "9104", }), promutil.NewLabelsFromMap(map[string]string{ "__address__": "172.21.0.2:9104", "__meta_docker_container_id": "59bf76e8816af98856b90dd619c91027145ca501043b1c51756d03b085882e06", "__meta_docker_container_label_com_docker_compose_project": "dockersd", "__meta_docker_container_label_com_docker_compose_service": "mysqlexporter", "__meta_docker_container_label_com_docker_compose_version": "2.2.2", "__meta_docker_container_label_maintainer": "The Prometheus Authors ", "__meta_docker_container_name": "/dockersd_mysql_exporter", "__meta_docker_container_network_mode": "container:f9ade4b83199d6f83020b7c0bfd1e8281b19dbf9e6cef2cf89bc45c8f8d20fe8", "__meta_docker_network_id": "bfcf66a6b64f7d518f009e34290dc3f3c66a08164257ad1afc3bd31d75f656e8", "__meta_docker_network_ingress": "false", "__meta_docker_network_internal": "false", "__meta_docker_network_ip": "172.21.0.2", "__meta_docker_network_name": "dockersd_private1", "__meta_docker_network_scope": "local", "__meta_docker_port_private": "9104", }), } labelss := addContainersLabels(containers, networkLabels, 80, "localhost", false) discoveryutil.TestEqualLabelss(t, sortLabelss(labelss), sortLabelss(labelssExpected)) } func sortLabelss(labelss []*promutil.Labels) []*promutil.Labels { sort.Slice(labelss, func(i, j int) bool { return labelss[i].Get("__address__")+labelss[i].Get("__meta_docker_container_id") < labelss[j].Get("__address__")+labelss[j].Get("__meta_docker_container_id") }) return labelss }