Configure default backend to not change backend ID

pkg/converters/ingress/ingress.go

@@ -152,7 +152,7 @@ func (c *converter) syncDefaultCrt() {
 func (c *converter) syncDefaultBackend() {
 	if c.options.DefaultBackend != "" {
 		if backend, err := c.addBackend(&c.defaultBackSource, hatypes.DefaultHost, "/", c.options.DefaultBackend, "", map[string]string{}); err == nil {
-			c.haproxy.Backends().SetDefaultBackend(backend)
+			c.haproxy.Backends().DefaultBackend = backend
 			c.tracker.TrackHostname(convtypes.IngressType, c.defaultBackSource.FullName(), hatypes.DefaultHost)
 		} else {
 			c.logger.Error("error reading default service: %v", err)

pkg/converters/ingress/ingress_test.go

@@ -98,7 +98,7 @@ func TestSyncSvcPortNotFound(t *testing.T) {
 `)
 
 	c.compareConfigBack(`
-- id: _default_backend
+- id: system_default_8080
   endpoints:
   - ip: 172.17.0.99
     port: 8080
@@ -143,7 +143,7 @@ func TestSyncSvcNamedPort(t *testing.T) {
   endpoints:
   - ip: 172.17.1.101
     port: 8080
-- id: _default_backend
+- id: system_default_8080
   endpoints:
   - ip: 172.17.0.99
     port: 8080
@@ -308,7 +308,7 @@ func TestSyncDrainSupport(t *testing.T) {
   - ip: 172.17.1.103
     port: 8080
     drain: true
-- id: _default_backend
+- id: system_default_8080
   endpoints:
   - ip: 172.17.0.99
     port: 8080
@@ -764,7 +764,7 @@ func TestSyncBackendReuseDefaultSvc(t *testing.T) {
 - hostname: default.example.com
   paths:
   - path: /app
-    backend: _default_backend`)
+    backend: system_default_8080`)
 
 	c.compareConfigDefaultFront(`[]`)
 	c.compareConfigBack(defaultBackendConfig)
@@ -1141,7 +1141,7 @@ WARN using default certificate due to an error reading secret 'default/tls1' on
   - ip: 172.17.0.11
     port: 8080
   balancealgorithm: leastcon
-- id: _default_backend
+- id: system_default_8080
   endpoints:
   - ip: 172.17.0.99
     port: 8080`,
@@ -1173,7 +1173,7 @@ WARN using default certificate due to an error reading secret 'default/tls1' on
   - ip: 172.17.0.12
     port: 8080
   balancealgorithm: leastcon
-- id: _default_backend
+- id: system_default_8080
   endpoints:
   - ip: 172.17.0.99
     port: 8080`,
@@ -1203,7 +1203,7 @@ WARN using default certificate due to an error reading secret 'default/tls1' on
   - ip: 172.17.0.11
     port: 8080
   balancealgorithm: leastcon
-- id: _default_backend
+- id: system_default_8080
   endpoints:
   - ip: 172.17.0.99
     port: 8080`,
@@ -1221,7 +1221,7 @@ WARN using default certificate due to an error reading secret 'default/tls1' on
   endpoints:
   - ip: 172.17.0.11
     port: 8080
-- id: _default_backend
+- id: system_default_8080
   endpoints:
   - ip: 172.17.0.99
     port: 8080`,
@@ -1246,7 +1246,7 @@ WARN using default certificate due to an error reading secret 'default/tls1' on
   endpoints:
   - ip: 172.17.0.12
     port: 8080
-- id: _default_backend
+- id: system_default_8080
   endpoints:
   - ip: 172.17.0.99
     port: 8080`,
@@ -1363,7 +1363,7 @@ func TestSyncPartialDefaultBackend(t *testing.T) {
 
 	c.compareConfigFront(`[]`)
 	c.compareConfigBack(`
-- id: _default_backend
+- id: system_default_8080
   endpoints:
   - ip: 172.17.0.90
     port: 8080
@@ -1627,7 +1627,7 @@ func TestSyncAnnBackDefault(t *testing.T) {
   - ip: 172.17.0.17
     port: 8080
   balancealgorithm: roundrobin
-- id: _default_backend
+- id: system_default_8080
   endpoints:
   - ip: 172.17.0.99
     port: 8080
@@ -1688,7 +1688,7 @@ func TestSyncAnnPassthrough(t *testing.T) {
   endpoints:
   - ip: 172.17.1.101
     port: 8443
-- id: _default_backend
+- id: system_default_8080
   endpoints:
   - ip: 172.17.0.99
     port: 8080
@@ -1741,7 +1741,7 @@ paths:
   backend: default_echo1_8080`
 
 var defaultBackendConfig = `
-- id: _default_backend
+- id: system_default_8080
   endpoints:
   - ip: 172.17.0.99
     port: 8080`

pkg/haproxy/config.go

@@ -128,7 +128,7 @@ func (c *config) SyncConfig() {
 				// TODO c.defaultBackend can be nil; create a valid
 				// _error404 backend, remove `if nil` from host.AddPath()
 				// and from `for range host.Paths` on map building.
-				back = c.backends.DefaultBackend()
+				back = c.backends.DefaultBackend
 			}
 			host.AddPath(back, "/", hatypes.MatchBegin)
 		}

pkg/haproxy/dynupdate_test.go

@@ -398,15 +398,15 @@ set server default_app_8080/srv002 weight 1
 		{
 			doconfig1: func(c *testConfig) {
 				b1 := c.config.Backends().AcquireBackend("default", "default_backend", "8080")
-				c.config.Backends().SetDefaultBackend(b1)
+				c.config.Backends().DefaultBackend = b1
 				b2 := c.config.Backends().AcquireBackend("default", "app", "8080")
 				b2.AcquireEndpoint("172.17.0.2", 8080, "")
 			},
 			doconfig2: func(c *testConfig) {
 				b1 := c.config.Backends().AcquireBackend("default", "default_backend", "8080")
 				b1.Dynamic.DynUpdate = true
 				b1.Dynamic.MinFreeSlots = 1
-				c.config.Backends().SetDefaultBackend(b1)
+				c.config.Backends().DefaultBackend = b1
 				b2 := c.config.Backends().AcquireBackend("default", "app", "8080")
 				b2.Dynamic.DynUpdate = true
 				b2.AcquireEndpoint("172.17.0.2", 8080, "")
@@ -588,7 +588,7 @@ set server default_app_8080/srv002 weight 1`,
 		{
 			doconfig1: func(c *testConfig) {
 				b1 := c.config.Backends().AcquireBackend("default", "default_backend", "8080")
-				c.config.Backends().SetDefaultBackend(b1)
+				c.config.Backends().DefaultBackend = b1
 				b2 := c.config.Backends().AcquireBackend("default", "app", "8080")
 				// some of these are unnecessary but the attempt is to have as
 				// realistic config as possible for a more reliable test
@@ -604,7 +604,7 @@ set server default_app_8080/srv002 weight 1`,
 			doconfig2: func(c *testConfig) {
 				b1 := c.config.Backends().AcquireBackend("default", "default_backend", "8080")
 				b1.Dynamic.DynUpdate = true
-				c.config.Backends().SetDefaultBackend(b1)
+				c.config.Backends().DefaultBackend = b1
 				b2 := c.config.Backends().AcquireBackend("default", "app", "8080")
 				b2.Dynamic.DynUpdate = true
 				// some of these are unnecessary but the attempt is to have as
@@ -637,7 +637,7 @@ set server default_app_8080/srv002 weight 1
 		{
 			doconfig1: func(c *testConfig) {
 				b1 := c.config.Backends().AcquireBackend("default", "default_backend", "8080")
-				c.config.Backends().SetDefaultBackend(b1)
+				c.config.Backends().DefaultBackend = b1
 				b2 := c.config.Backends().AcquireBackend("default", "app", "8080")
 				// some of these are unnecessary but the attempt is to have as
 				// realistic config as possible for a more reliable test
@@ -653,7 +653,7 @@ set server default_app_8080/srv002 weight 1
 			doconfig2: func(c *testConfig) {
 				b1 := c.config.Backends().AcquireBackend("default", "default_backend", "8080")
 				b1.Dynamic.DynUpdate = true
-				c.config.Backends().SetDefaultBackend(b1)
+				c.config.Backends().DefaultBackend = b1
 				b2 := c.config.Backends().AcquireBackend("default", "app", "8080")
 				b2.Dynamic.DynUpdate = true
 				// some of these are unnecessary but the attempt is to have as
@@ -683,7 +683,7 @@ set server default_app_8080/srv002 weight 1
 		{
 			doconfig1: func(c *testConfig) {
 				b1 := c.config.Backends().AcquireBackend("default", "default_backend", "8080")
-				c.config.Backends().SetDefaultBackend(b1)
+				c.config.Backends().DefaultBackend = b1
 				b2 := c.config.Backends().AcquireBackend("default", "app", "8080")
 				// some of these are unnecessary but the attempt is to have as
 				// realistic config as possible for a more reliable test
@@ -699,7 +699,7 @@ set server default_app_8080/srv002 weight 1
 			doconfig2: func(c *testConfig) {
 				b1 := c.config.Backends().AcquireBackend("default", "default_backend", "8080")
 				b1.Dynamic.DynUpdate = true
-				c.config.Backends().SetDefaultBackend(b1)
+				c.config.Backends().DefaultBackend = b1
 				b2 := c.config.Backends().AcquireBackend("default", "app", "8080")
 				b2.Dynamic.DynUpdate = true
 				// some of these are unnecessary but the attempt is to have as
@@ -730,12 +730,12 @@ set server default_app_8080/srv002 weight 1`,
 		{
 			doconfig1: func(c *testConfig) {
 				b := c.config.Backends().AcquireBackend("default", "app", "8080")
-				c.config.backends.SetDefaultBackend(b)
+				c.config.backends.DefaultBackend = b
 				b.AcquireEndpoint("172.17.0.2", 8080, "")
 			},
 			doconfig2: func(c *testConfig) {
 				b := c.config.Backends().AcquireBackend("default", "app", "8080")
-				c.config.backends.SetDefaultBackend(b)
+				c.config.backends.DefaultBackend = b
 				b.Dynamic.DynUpdate = true
 				b.AcquireEndpoint("172.17.0.3", 8080, "")
 			},
@@ -744,10 +744,10 @@ set server default_app_8080/srv002 weight 1`,
 			},
 			dynamic: true,
 			cmd: `
-set server _default_backend/srv001 addr 172.17.0.3 port 8080
-set server _default_backend/srv001 state ready
-set server _default_backend/srv001 weight 1`,
-			logging: `INFO-V(2) updated endpoint '172.17.0.3:8080' weight '1' state 'ready' on backend/server '_default_backend/srv001'`,
+set server default_app_8080/srv001 addr 172.17.0.3 port 8080
+set server default_app_8080/srv001 state ready
+set server default_app_8080/srv001 weight 1`,
+			logging: `INFO-V(2) updated endpoint '172.17.0.3:8080' weight '1' state 'ready' on backend/server 'default_app_8080/srv001'`,
 		},
 	}
 	for i, test := range testCases {

pkg/haproxy/instance_test.go

@@ -1434,7 +1434,7 @@ func TestInstanceDefaultHost(t *testing.T) {
 
 	def := c.config.Backends().AcquireBackend("default", "default-backend", "8080")
 	def.Endpoints = []*hatypes.Endpoint{endpointS0}
-	c.config.Backends().SetDefaultBackend(def)
+	c.config.Backends().DefaultBackend = def
 
 	var h *hatypes.Host
 	var b *hatypes.Backend
@@ -1471,7 +1471,7 @@ backend d2_app_8080
     acl https-request ssl_fc
     http-request redirect scheme https if !https-request
     server s1 172.17.0.11:8080 weight 100
-backend _default_backend
+backend default_default-backend_8080
     mode http
     server s0 172.17.0.99:8080 weight 100
 frontend _front_http
@@ -1484,7 +1484,7 @@ frontend _front_http
     http-request set-var(req.backend) var(req.base),lower,map_beg(/etc/haproxy/maps/_front_http_host__begin.map)
     use_backend %[var(req.backend)] if { var(req.backend) -m found }
     use_backend d1_app_8080
-    default_backend _default_backend
+    default_backend default_default-backend_8080
 frontend _front_https
     mode http
     bind :443 ssl alpn h2,http/1.1 crt-list /etc/haproxy/maps/_front_bind_crt.list ca-ignore-err all crt-ignore-err all
@@ -1495,7 +1495,7 @@ frontend _front_https
     <<https-headers>>
     use_backend %[var(req.hostbackend)] if { var(req.hostbackend) -m found }
     use_backend d1_app_8080
-    default_backend _default_backend
+    default_backend default_default-backend_8080
 <<support>>
 `)
 
@@ -1605,7 +1605,7 @@ func TestInstanceFrontend(t *testing.T) {
 
 	def := c.config.Backends().AcquireBackend("default", "default-backend", "8080")
 	def.Endpoints = []*hatypes.Endpoint{endpointS0}
-	c.config.Backends().SetDefaultBackend(def)
+	c.config.Backends().DefaultBackend = def
 
 	var h *hatypes.Host
 	var b *hatypes.Backend
@@ -1641,7 +1641,7 @@ backend d2_app_8080
     acl https-request ssl_fc
     http-request redirect scheme https if !https-request
     server s1 172.17.0.11:8080 weight 100
-backend _default_backend
+backend default_default-backend_8080
     mode http
     server s0 172.17.0.99:8080 weight 100
 frontend _front_http
@@ -1655,7 +1655,7 @@ frontend _front_http
     http-request set-var(req.backend) var(req.base),map_dir(/etc/haproxy/maps/_front_http_host__prefix.map)
     http-request set-var(req.backend) var(req.base),lower,map_beg(/etc/haproxy/maps/_front_http_host__begin.map) if !{ var(req.backend) -m found }
     use_backend %[var(req.backend)] if { var(req.backend) -m found }
-    default_backend _default_backend
+    default_backend default_default-backend_8080
 frontend _front_https
     mode http
     bind :443 ssl alpn h2,http/1.1 crt-list /etc/haproxy/maps/_front_bind_crt.list ca-ignore-err all crt-ignore-err all
@@ -1667,7 +1667,7 @@ frontend _front_https
     http-request set-var(txn.namespace) str(-) if !{ var(txn.namespace) -m found }
     <<https-headers>>
     use_backend %[var(req.hostbackend)] if { var(req.hostbackend) -m found }
-    default_backend _default_backend
+    default_backend default_default-backend_8080
 <<support>>
 `)
 
@@ -1705,7 +1705,7 @@ func TestInstanceFrontendCA(t *testing.T) {
 
 	def := c.config.Backends().AcquireBackend("default", "default-backend", "8080")
 	def.Endpoints = []*hatypes.Endpoint{endpointS0}
-	c.config.Backends().SetDefaultBackend(def)
+	c.config.Backends().DefaultBackend = def
 
 	var h *hatypes.Host
 	var b *hatypes.Backend
@@ -1774,7 +1774,7 @@ backend d_app_8080
     http-request set-header X-SSL-Client-SHA1 %{+Q}[ssl_c_sha1,hex,lower]
     http-request set-header X-SSL-Client-Cert %{+Q}[ssl_c_der,base64]
     server s1 172.17.0.11:8080 weight 100
-backend _default_backend
+backend default_default-backend_8080
     mode http
     server s0 172.17.0.99:8080 weight 100
 frontend _front_http
@@ -1785,7 +1785,7 @@ frontend _front_http
     http-request set-var(req.backend) var(req.base),lower,map_beg(/etc/haproxy/maps/_front_http_host__begin.map)
     http-request set-var(req.backend) var(req.base),map_reg(/etc/haproxy/maps/_front_http_host__regex.map) if !{ var(req.backend) -m found }
     use_backend %[var(req.backend)] if { var(req.backend) -m found }
-    default_backend _default_backend
+    default_backend default_default-backend_8080
 frontend _front_https
     mode http
     bind :443 ssl alpn h2,http/1.1 crt-list /etc/haproxy/maps/_front_bind_crt.list ca-ignore-err all crt-ignore-err all
@@ -1818,7 +1818,7 @@ frontend _front_https
     http-request use-service lua.send-495 if { var(req.tls_invalidcrt_redir) _internal }
     use_backend %[var(req.hostbackend)] if { var(req.hostbackend) -m found }
     use_backend %[var(req.snibackend)] if { var(req.snibackend) -m found }
-    default_backend _default_backend
+    default_backend default_default-backend_8080
 <<support>>
 `)
 
@@ -1881,7 +1881,7 @@ func TestInstanceSomePaths(t *testing.T) {
 
 	def := c.config.Backends().AcquireBackend("default", "default-backend", "8080")
 	def.Endpoints = []*hatypes.Endpoint{endpointS0}
-	c.config.Backends().SetDefaultBackend(def)
+	c.config.Backends().DefaultBackend = def
 
 	var h *hatypes.Host
 	var b *hatypes.Backend
@@ -1930,13 +1930,13 @@ backend d_app3_8080
     server s31 172.17.0.131:8080 weight 100
     server s32 172.17.0.132:8080 weight 100
     server s33 172.17.0.133:8080 weight 100
-backend _default_backend
+backend default_default-backend_8080
     mode http
     server s0 172.17.0.99:8080 weight 100
 <<frontend-http>>
-    default_backend _default_backend
+    default_backend default_default-backend_8080
 <<frontend-https>>
-    default_backend _default_backend
+    default_backend default_default-backend_8080
 <<support>>
 `)