traefik/provider/kv/filler_test.go

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package kv
import (
"sort"
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"strconv"
"strings"
"testing"
"github.com/abronan/valkeyrie/store"
"github.com/stretchr/testify/assert"
)
type ByKey []*store.KVPair
func (a ByKey) Len() int { return len(a) }
func (a ByKey) Swap(i, j int) { a[i], a[j] = a[j], a[i] }
func (a ByKey) Less(i, j int) bool { return a[i].Key < a[j].Key }
func filler(prefix string, opts ...func(string, map[string]*store.KVPair)) []*store.KVPair {
buf := make(map[string]*store.KVPair)
for _, opt := range opts {
opt(prefix, buf)
}
var result ByKey
for _, value := range buf {
result = append(result, value)
}
sort.Sort(result)
return result
}
func backend(name string, opts ...func(map[string]string)) func(string, map[string]*store.KVPair) {
return entry(pathBackends+name, opts...)
}
func frontend(name string, opts ...func(map[string]string)) func(string, map[string]*store.KVPair) {
return entry(pathFrontends+name, opts...)
}
func entry(root string, opts ...func(map[string]string)) func(string, map[string]*store.KVPair) {
return func(prefix string, pairs map[string]*store.KVPair) {
prefixedRoot := prefix + pathSeparator + strings.TrimPrefix(root, pathSeparator)
pairs[prefixedRoot] = &store.KVPair{Key: prefixedRoot, Value: []byte("")}
transit := make(map[string]string)
for _, opt := range opts {
opt(transit)
}
for key, value := range transit {
fill(pairs, prefixedRoot, key, value)
}
}
}
func fill(pairs map[string]*store.KVPair, previous string, current string, value string) {
clean := strings.TrimPrefix(current, pathSeparator)
i := strings.IndexRune(clean, '/')
if i > 0 {
key := previous + pathSeparator + clean[:i]
if _, ok := pairs[key]; !ok || len(pairs[key].Value) == 0 {
pairs[key] = &store.KVPair{Key: key, Value: []byte("")}
}
fill(pairs, key, clean[i:], value)
}
key := previous + pathSeparator + clean
pairs[key] = &store.KVPair{Key: key, Value: []byte(value)}
}
func withPair(key string, value string) func(map[string]string) {
return func(pairs map[string]string) {
if len(key) == 0 {
return
}
pairs[key] = value
}
}
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func withList(key string, values ...string) func(map[string]string) {
return func(pairs map[string]string) {
if len(key) == 0 {
return
}
for i, value := range values {
pairs[key+"/"+strconv.Itoa(i)] = value
}
}
}
func withErrorPage(name string, backend string, query string, statuses ...string) func(map[string]string) {
return func(pairs map[string]string) {
if len(name) == 0 {
return
}
withPair(pathFrontendErrorPages+name+pathFrontendErrorPagesBackend, backend)(pairs)
withPair(pathFrontendErrorPages+name+pathFrontendErrorPagesQuery, query)(pairs)
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withList(pathFrontendErrorPages+name+pathFrontendErrorPagesStatus, statuses...)(pairs)
}
}
func withRateLimit(extractorFunc string, opts ...func(map[string]string)) func(map[string]string) {
return func(pairs map[string]string) {
pairs[pathFrontendRateLimitExtractorFunc] = extractorFunc
for _, opt := range opts {
opt(pairs)
}
}
}
func withLimit(name string, average, burst, period string) func(map[string]string) {
return func(pairs map[string]string) {
pairs[pathFrontendRateLimitRateSet+name+pathFrontendRateLimitAverage] = average
pairs[pathFrontendRateLimitRateSet+name+pathFrontendRateLimitBurst] = burst
pairs[pathFrontendRateLimitRateSet+name+pathFrontendRateLimitPeriod] = period
}
}
func TestFiller(t *testing.T) {
expected := []*store.KVPair{
{Key: "traefik/backends/backend.with.dot.too", Value: []byte("")},
{Key: "traefik/backends/backend.with.dot.too/servers", Value: []byte("")},
{Key: "traefik/backends/backend.with.dot.too/servers/server.with.dot", Value: []byte("")},
{Key: "traefik/backends/backend.with.dot.too/servers/server.with.dot.without.url", Value: []byte("")},
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{Key: "traefik/backends/backend.with.dot.too/servers/server.with.dot.without.url/weight", Value: []byte("1")},
{Key: "traefik/backends/backend.with.dot.too/servers/server.with.dot/url", Value: []byte("http://172.17.0.2:80")},
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{Key: "traefik/backends/backend.with.dot.too/servers/server.with.dot/weight", Value: []byte("1")},
{Key: "traefik/frontends/frontend.with.dot", Value: []byte("")},
{Key: "traefik/frontends/frontend.with.dot/backend", Value: []byte("backend.with.dot.too")},
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{Key: "traefik/frontends/frontend.with.dot/errors", Value: []byte("")},
{Key: "traefik/frontends/frontend.with.dot/errors/bar", Value: []byte("")},
{Key: "traefik/frontends/frontend.with.dot/errors/bar/backend", Value: []byte("error")},
{Key: "traefik/frontends/frontend.with.dot/errors/bar/query", Value: []byte("/test2")},
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{Key: "traefik/frontends/frontend.with.dot/errors/bar/status", Value: []byte("")},
{Key: "traefik/frontends/frontend.with.dot/errors/bar/status/0", Value: []byte("400-405")},
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{Key: "traefik/frontends/frontend.with.dot/errors/foo", Value: []byte("")},
{Key: "traefik/frontends/frontend.with.dot/errors/foo/backend", Value: []byte("error")},
{Key: "traefik/frontends/frontend.with.dot/errors/foo/query", Value: []byte("/test1")},
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{Key: "traefik/frontends/frontend.with.dot/errors/foo/status", Value: []byte("")},
{Key: "traefik/frontends/frontend.with.dot/errors/foo/status/0", Value: []byte("500-501")},
{Key: "traefik/frontends/frontend.with.dot/errors/foo/status/1", Value: []byte("503-599")},
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{Key: "traefik/frontends/frontend.with.dot/ratelimit", Value: []byte("")},
{Key: "traefik/frontends/frontend.with.dot/ratelimit/extractorfunc", Value: []byte("client.ip")},
{Key: "traefik/frontends/frontend.with.dot/ratelimit/rateset", Value: []byte("")},
{Key: "traefik/frontends/frontend.with.dot/ratelimit/rateset/bar", Value: []byte("")},
{Key: "traefik/frontends/frontend.with.dot/ratelimit/rateset/bar/average", Value: []byte("3")},
{Key: "traefik/frontends/frontend.with.dot/ratelimit/rateset/bar/burst", Value: []byte("6")},
{Key: "traefik/frontends/frontend.with.dot/ratelimit/rateset/bar/period", Value: []byte("9")},
{Key: "traefik/frontends/frontend.with.dot/ratelimit/rateset/foo", Value: []byte("")},
{Key: "traefik/frontends/frontend.with.dot/ratelimit/rateset/foo/average", Value: []byte("6")},
{Key: "traefik/frontends/frontend.with.dot/ratelimit/rateset/foo/burst", Value: []byte("12")},
{Key: "traefik/frontends/frontend.with.dot/ratelimit/rateset/foo/period", Value: []byte("18")},
{Key: "traefik/frontends/frontend.with.dot/routes", Value: []byte("")},
{Key: "traefik/frontends/frontend.with.dot/routes/route.with.dot", Value: []byte("")},
{Key: "traefik/frontends/frontend.with.dot/routes/route.with.dot/rule", Value: []byte("Host:test.localhost")},
}
pairs1 := filler("traefik",
frontend("frontend.with.dot",
withPair("backend", "backend.with.dot.too"),
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withPair("routes/route.with.dot/rule", "Host:test.localhost"),
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withErrorPage("foo", "error", "/test1", "500-501", "503-599"),
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withErrorPage("bar", "error", "/test2", "400-405"),
withRateLimit("client.ip",
withLimit("foo", "6", "12", "18"),
withLimit("bar", "3", "6", "9"))),
backend("backend.with.dot.too",
withPair("servers/server.with.dot/url", "http://172.17.0.2:80"),
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withPair("servers/server.with.dot/weight", "1"),
withPair("servers/server.with.dot.without.url/weight", "1")),
)
assert.EqualValues(t, expected, pairs1)
pairs2 := filler("traefik",
entry("frontends/frontend.with.dot",
withPair("backend", "backend.with.dot.too"),
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withPair("routes/route.with.dot/rule", "Host:test.localhost"),
withPair("errors/foo/backend", "error"),
withPair("errors/foo/query", "/test1"),
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withList("errors/foo/status", "500-501", "503-599"),
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withPair("errors/bar/backend", "error"),
withPair("errors/bar/query", "/test2"),
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withList("errors/bar/status", "400-405"),
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withPair("ratelimit/extractorfunc", "client.ip"),
withPair("ratelimit/rateset/foo/average", "6"),
withPair("ratelimit/rateset/foo/burst", "12"),
withPair("ratelimit/rateset/foo/period", "18"),
withPair("ratelimit/rateset/bar/average", "3"),
withPair("ratelimit/rateset/bar/burst", "6"),
withPair("ratelimit/rateset/bar/period", "9")),
entry("backends/backend.with.dot.too",
withPair("servers/server.with.dot/url", "http://172.17.0.2:80"),
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withPair("servers/server.with.dot/weight", "1"),
withPair("servers/server.with.dot.without.url/weight", "1")),
)
assert.EqualValues(t, expected, pairs2)
}