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VictoriaMetrics/lib/promscrape/discovery/docker/container_test.go

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12 KiB
Go
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package docker
import (
"reflect"
"testing"
)
func Test_parseContainers(t *testing.T) {
type args struct {
data []byte
}
tests := []struct {
name string
args args
want []container
wantErr bool
}{
{
name: "parse two containers",
args: args{
data: []byte(`[
{
"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
}
}
}
}
]`),
},
want: []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: []struct {
IP string
PrivatePort int
PublicPort int
Type string
}{{
IP: "0.0.0.0",
PrivatePort: 8080,
PublicPort: 18081,
Type: "tcp",
}},
HostConfig: struct {
NetworkMode string
}{
NetworkMode: "bridge",
},
NetworkSettings: struct {
Networks map[string]struct {
IPAddress string
NetworkID string
}
}{
Networks: map[string]struct {
IPAddress string
NetworkID string
}{
"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: []struct {
IP string
PrivatePort int
PublicPort int
Type string
}{{
IP: "0.0.0.0",
PrivatePort: 8080,
PublicPort: 18082,
Type: "tcp",
}},
HostConfig: struct {
NetworkMode string
}{
NetworkMode: "bridge",
},
NetworkSettings: struct {
Networks map[string]struct {
IPAddress string
NetworkID string
}
}{
Networks: map[string]struct {
IPAddress string
NetworkID string
}{
"bridge": {
IPAddress: "172.17.0.3",
NetworkID: "1dd8d1a8bef59943345c7231d7ce8268333ff5a8c5b3c94881e6b4742b447634",
},
},
},
},
},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
got, err := parseContainers(tt.args.data)
if (err != nil) != tt.wantErr {
t.Errorf("parseContainers() error = %v, wantErr %v", err, tt.wantErr)
return
}
if !reflect.DeepEqual(got, tt.want) {
t.Errorf("parseNetworks() \ngot %v, \nwant %v", got, tt.want)
}
})
}
}
func Test_addContainerLabels(t *testing.T) {
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)
tests := []struct {
name string
c container
want []map[string]string
wantErr bool
}{
{
name: "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: []struct {
IP string
PrivatePort int
PublicPort int
Type string
}{{
IP: "0.0.0.0",
PrivatePort: 8080,
PublicPort: 18081,
Type: "tcp",
}},
HostConfig: struct {
NetworkMode string
}{
NetworkMode: "bridge",
},
NetworkSettings: struct {
Networks map[string]struct {
IPAddress string
NetworkID string
}
}{
Networks: map[string]struct {
IPAddress string
NetworkID string
}{
"bridge": {
IPAddress: "172.17.0.2",
NetworkID: "1dd8d1a8bef59943345c7231d7ce8268333ff5a8c5b3c94881e6b4742b447634",
},
},
},
},
want: []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",
},
},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
labelsMap := addContainersLabels([]container{tt.c}, networkLabels, 80)
if (err != nil) != tt.wantErr {
t.Errorf("addContainersLabels() error = %v, wantErr %v", err, tt.wantErr)
return
}
if !reflect.DeepEqual(labelsMap, tt.want) {
t.Errorf("addContainersLabels() \ngot %v, \nwant %v", labelsMap, tt.want)
}
})
}
}
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