traefik/provider/consulcatalog/config_test.go
2018-04-04 11:52:05 +02:00

518 lines
11 KiB
Go

package consulcatalog
import (
"testing"
"text/template"
"github.com/containous/traefik/provider/label"
"github.com/containous/traefik/types"
"github.com/hashicorp/consul/api"
"github.com/stretchr/testify/assert"
)
func TestProviderBuildConfiguration(t *testing.T) {
p := &Provider{
Domain: "localhost",
Prefix: "traefik",
ExposedByDefault: false,
FrontEndRule: "Host:{{.ServiceName}}.{{.Domain}}",
frontEndRuleTemplate: template.New("consul catalog frontend rule"),
}
testCases := []struct {
desc string
nodes []catalogUpdate
expectedFrontends map[string]*types.Frontend
expectedBackends map[string]*types.Backend
}{
{
desc: "Should build config of nothing",
nodes: []catalogUpdate{},
expectedFrontends: map[string]*types.Frontend{},
expectedBackends: map[string]*types.Backend{},
},
{
desc: "Should build config with no frontend and backend",
nodes: []catalogUpdate{
{
Service: &serviceUpdate{
ServiceName: "test",
},
},
},
expectedFrontends: map[string]*types.Frontend{},
expectedBackends: map[string]*types.Backend{},
},
{
desc: "Should build config who contains one frontend and one backend",
nodes: []catalogUpdate{
{
Service: &serviceUpdate{
ServiceName: "test",
Attributes: []string{
"random.foo=bar",
label.TraefikBackendLoadBalancerMethod + "=drr",
label.TraefikBackendCircuitBreakerExpression + "=NetworkErrorRatio() > 0.5",
label.TraefikBackendMaxConnAmount + "=1000",
label.TraefikBackendMaxConnExtractorFunc + "=client.ip",
label.TraefikFrontendAuthBasic + "=test:$apr1$H6uskkkW$IgXLP6ewTrSuBkTrqE8wj/,test2:$apr1$d9hr9HBB$4HxwgUir3HP4EsggP/QNo0",
},
},
Nodes: []*api.ServiceEntry{
{
Service: &api.AgentService{
Service: "test",
Address: "127.0.0.1",
Port: 80,
Tags: []string{
"random.foo=bar",
label.Prefix + "backend.weight=42", // Deprecated label
label.TraefikFrontendPassHostHeader + "=true",
label.TraefikProtocol + "=https",
},
},
Node: &api.Node{
Node: "localhost",
Address: "127.0.0.1",
},
},
},
},
},
expectedFrontends: map[string]*types.Frontend{
"frontend-test": {
Backend: "backend-test",
PassHostHeader: true,
Routes: map[string]types.Route{
"route-host-test": {
Rule: "Host:test.localhost",
},
},
EntryPoints: []string{},
BasicAuth: []string{"test:$apr1$H6uskkkW$IgXLP6ewTrSuBkTrqE8wj/", "test2:$apr1$d9hr9HBB$4HxwgUir3HP4EsggP/QNo0"},
},
},
expectedBackends: map[string]*types.Backend{
"backend-test": {
Servers: map[string]types.Server{
"test-0-us4-27hAOu2ARV7nNrmv6GoKlcA": {
URL: "https://127.0.0.1:80",
Weight: 42,
},
},
LoadBalancer: &types.LoadBalancer{
Method: "drr",
},
CircuitBreaker: &types.CircuitBreaker{
Expression: "NetworkErrorRatio() > 0.5",
},
MaxConn: &types.MaxConn{
Amount: 1000,
ExtractorFunc: "client.ip",
},
},
},
},
}
for _, test := range testCases {
test := test
t.Run(test.desc, func(t *testing.T) {
t.Parallel()
nodes := fakeLoadTraefikLabelsSlice(test.nodes, p.Prefix)
actualConfig := p.buildConfigurationV2(nodes)
assert.NotNil(t, actualConfig)
assert.Equal(t, test.expectedBackends, actualConfig.Backends)
assert.Equal(t, test.expectedFrontends, actualConfig.Frontends)
})
}
}
func TestGetTag(t *testing.T) {
testCases := []struct {
desc string
tags []string
key string
defaultValue string
expected string
}{
{
desc: "Should return value of foo.bar key",
tags: []string{
"foo.bar=random",
"traefik.backend.weight=42",
"management",
},
key: "foo.bar",
defaultValue: "0",
expected: "random",
},
{
desc: "Should return default value when nonexistent key",
tags: []string{
"foo.bar.foo.bar=random",
"traefik.backend.weight=42",
"management",
},
key: "foo.bar",
defaultValue: "0",
expected: "0",
},
}
for _, test := range testCases {
test := test
t.Run(test.desc, func(t *testing.T) {
t.Parallel()
actual := getTag(test.key, test.tags, test.defaultValue)
assert.Equal(t, test.expected, actual)
})
}
}
func TestHasTag(t *testing.T) {
testCases := []struct {
desc string
name string
tags []string
expected bool
}{
{
desc: "tag without value",
name: "foo",
tags: []string{"foo"},
expected: true,
},
{
desc: "tag with value",
name: "foo",
tags: []string{"foo=true"},
expected: true,
},
{
desc: "missing tag",
name: "foo",
tags: []string{"foobar=true"},
expected: false,
},
}
for _, test := range testCases {
test := test
t.Run(test.desc, func(t *testing.T) {
t.Parallel()
actual := hasTag(test.name, test.tags)
assert.Equal(t, test.expected, actual)
})
}
}
func TestProviderGetPrefixedName(t *testing.T) {
testCases := []struct {
desc string
name string
prefix string
expected string
}{
{
desc: "empty name with prefix",
name: "",
prefix: "foo",
expected: "",
},
{
desc: "empty name without prefix",
name: "",
prefix: "",
expected: "",
},
{
desc: "with prefix",
name: "bar",
prefix: "foo",
expected: "foo.bar",
},
{
desc: "without prefix",
name: "bar",
prefix: "",
expected: "bar",
},
}
for _, test := range testCases {
test := test
t.Run(test.desc, func(t *testing.T) {
t.Parallel()
p := &Provider{Prefix: test.prefix}
actual := p.getPrefixedName(test.name)
assert.Equal(t, test.expected, actual)
})
}
}
func TestProviderGetAttribute(t *testing.T) {
testCases := []struct {
desc string
tags []string
key string
defaultValue string
prefix string
expected string
}{
{
desc: "Should return tag value 42",
prefix: "traefik",
tags: []string{
"foo.bar=ramdom",
"traefik.backend.weight=42",
},
key: "backend.weight",
defaultValue: "0",
expected: "42",
},
{
desc: "Should return tag default value 0",
prefix: "traefik",
tags: []string{
"foo.bar=ramdom",
"traefik.backend.wei=42",
},
key: "backend.weight",
defaultValue: "0",
expected: "0",
},
{
desc: "Should return tag value 42 when empty prefix",
tags: []string{
"foo.bar=ramdom",
"backend.weight=42",
},
key: "backend.weight",
defaultValue: "0",
expected: "42",
},
{
desc: "Should return default value 0 when empty prefix",
tags: []string{
"foo.bar=ramdom",
"backend.wei=42",
},
key: "backend.weight",
defaultValue: "0",
expected: "0",
},
{
desc: "Should return for.bar key value random when empty prefix",
tags: []string{
"foo.bar=ramdom",
"backend.wei=42",
},
key: "foo.bar",
defaultValue: "random",
expected: "ramdom",
},
}
for _, test := range testCases {
test := test
t.Run(test.desc, func(t *testing.T) {
t.Parallel()
p := &Provider{
Domain: "localhost",
Prefix: test.prefix,
}
actual := p.getAttribute(test.key, test.tags, test.defaultValue)
assert.Equal(t, test.expected, actual)
})
}
}
func TestProviderGetFrontendRule(t *testing.T) {
testCases := []struct {
desc string
service serviceUpdate
expected string
}{
{
desc: "Should return default host foo.localhost",
service: serviceUpdate{
ServiceName: "foo",
Attributes: []string{},
},
expected: "Host:foo.localhost",
},
{
desc: "Should return host *.example.com",
service: serviceUpdate{
ServiceName: "foo",
Attributes: []string{
"traefik.frontend.rule=Host:*.example.com",
},
},
expected: "Host:*.example.com",
},
{
desc: "Should return host foo.example.com",
service: serviceUpdate{
ServiceName: "foo",
Attributes: []string{
"traefik.frontend.rule=Host:{{.ServiceName}}.example.com",
},
},
expected: "Host:foo.example.com",
},
{
desc: "Should return path prefix /bar",
service: serviceUpdate{
ServiceName: "foo",
Attributes: []string{
"traefik.frontend.rule=PathPrefix:{{getTag \"contextPath\" .Attributes \"/\"}}",
"contextPath=/bar",
},
},
expected: "PathPrefix:/bar",
},
}
for _, test := range testCases {
test := test
t.Run(test.desc, func(t *testing.T) {
t.Parallel()
p := &Provider{
Domain: "localhost",
Prefix: "traefik",
FrontEndRule: "Host:{{.ServiceName}}.{{.Domain}}",
frontEndRuleTemplate: template.New("consul catalog frontend rule"),
}
p.setupFrontEndRuleTemplate()
labels := tagsToNeutralLabels(test.service.Attributes, p.Prefix)
test.service.TraefikLabels = labels
actual := p.getFrontendRule(test.service)
assert.Equal(t, test.expected, actual)
})
}
}
func TestGetBackendAddress(t *testing.T) {
testCases := []struct {
desc string
node *api.ServiceEntry
expected string
}{
{
desc: "Should return the address of the service",
node: &api.ServiceEntry{
Node: &api.Node{
Address: "10.1.0.1",
},
Service: &api.AgentService{
Address: "10.2.0.1",
},
},
expected: "10.2.0.1",
},
{
desc: "Should return the address of the node",
node: &api.ServiceEntry{
Node: &api.Node{
Address: "10.1.0.1",
},
Service: &api.AgentService{
Address: "",
},
},
expected: "10.1.0.1",
},
}
for _, test := range testCases {
test := test
t.Run(test.desc, func(t *testing.T) {
t.Parallel()
actual := getBackendAddress(test.node)
assert.Equal(t, test.expected, actual)
})
}
}
func TestGetServerName(t *testing.T) {
testCases := []struct {
desc string
node *api.ServiceEntry
expected string
}{
{
desc: "Should create backend name without tags",
node: &api.ServiceEntry{
Service: &api.AgentService{
Service: "api",
Address: "10.0.0.1",
Port: 80,
Tags: []string{},
},
},
expected: "api-0-eUSiqD6uNvvh6zxsY-OeRi8ZbaE",
},
{
desc: "Should create backend name with multiple tags",
node: &api.ServiceEntry{
Service: &api.AgentService{
Service: "api",
Address: "10.0.0.1",
Port: 80,
Tags: []string{"traefik.weight=42", "traefik.enable=true"},
},
},
expected: "api-1-eJ8MR2JxjXyZgs1bhurVa0-9OI8",
},
{
desc: "Should create backend name with one tag",
node: &api.ServiceEntry{
Service: &api.AgentService{
Service: "api",
Address: "10.0.0.1",
Port: 80,
Tags: []string{"a funny looking tag"},
},
},
expected: "api-2-lMCDCsG7sh0SCXOHo4oBOQB-9D4",
},
}
for i, test := range testCases {
test := test
i := i
t.Run(test.desc, func(t *testing.T) {
t.Parallel()
actual := getServerName(test.node, i)
assert.Equal(t, test.expected, actual)
})
}
}
func fakeLoadTraefikLabelsSlice(nodes []catalogUpdate, prefix string) []catalogUpdate {
var result []catalogUpdate
for _, node := range nodes {
labels := tagsToNeutralLabels(node.Service.Attributes, prefix)
node.Service.TraefikLabels = labels
result = append(result, node)
}
return result
}