feat: Add support for MX records

.env.example

@@ -1,5 +1,4 @@
-MIKROTIK_HOST = ""
-MIKROTIK_PORT = 443
+MIKROTIK_BASEURL = "192.168.88.1:443"
 
 MIKROTIK_USERNAME = ""
 MIKROTIK_PASSWORD = ""

deploy/records/mx-record.yaml

@@ -10,4 +10,3 @@ spec:
       recordType: MX
       targets:
         - 10 mailhost1.example.com
-        - 20 mailhost2.example.com

deploy/values.yaml

@@ -14,23 +14,18 @@ provider:
   webhook:
     image:
       repository: ghcr.io/mirceanton/external-dns-provider-mikrotik
-      tag: sha-36f6f8d
+      tag: pr-95
       pullPolicy: Always
     env:
       - name: LOG_FORMAT
         value: json
       - name: LOG_LEVEL
         value: debug
-      - name: MIKROTIK_HOST
+      - name: MIKROTIK_BASEURL
         valueFrom:
           secretKeyRef:
             name: mikrotik-credentials
-            key: MIKROTIK_HOST
-      - name: MIKROTIK_PORT
-        valueFrom:
-          secretKeyRef:
-            name: mikrotik-credentials
-            key: MIKROTIK_PORT
+            key: MIKROTIK_BASEURL
       - name: MIKROTIK_USERNAME
         valueFrom:
           secretKeyRef:
@@ -50,13 +45,13 @@ provider:
     livenessProbe:
       httpGet:
         path: /healthz
-        port: http-wh-metrics
+        port: http-webhook
       initialDelaySeconds: 10
       timeoutSeconds: 5
     readinessProbe:
       httpGet:
         path: /readyz
-        port: http-wh-metrics
+        port: http-webhook
       initialDelaySeconds: 10
       timeoutSeconds: 5
 
@@ -65,6 +60,11 @@ extraArgs:
   - --source=crd
   - --crd-source-apiversion=externaldns.k8s.io/v1alpha1
   - --crd-source-kind=DNSEndpoint
+  - --managed-record-types=A
+  - --managed-record-types=AAAA
+  - --managed-record-types=CNAME
+  - --managed-record-types=TXT
+  - --managed-record-types=MX
 
 rbac:
   create: true

go.sum

@@ -1,13 +1,9 @@
-github.com/aws/aws-sdk-go v1.53.3 h1:xv0iGCCLdf6ZtlLPMCBjm+tU9UBLP5hXnSqnbKFYmto=
-github.com/aws/aws-sdk-go v1.53.3/go.mod h1:LF8svs817+Nz+DmiMQKTO3ubZ/6IaTpq3TjupRn3Eqk=
 github.com/aws/aws-sdk-go v1.55.5 h1:KKUZBfBoyqy5d3swXyiC7Q76ic40rYcbqH7qjh59kzU=
 github.com/aws/aws-sdk-go v1.55.5/go.mod h1:eRwEWoyTWFMVYVQzKMNHWP5/RV4xIUGMQfXQHfHkpNU=
 github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
 github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
 github.com/caarlos0/env/v11 v11.2.2 h1:95fApNrUyueipoZN/EhA8mMxiNxrBwDa+oAZrMWl3Kg=
 github.com/caarlos0/env/v11 v11.2.2/go.mod h1:JBfcdeQiBoI3Zh1QRAWfe+tpiNTmDtcCj/hHHHMx0vc=
-github.com/cespare/xxhash/v2 v2.2.0 h1:DC2CZ1Ep5Y4k3ZQ899DldepgrayRUGE6BBZ/cd9Cj44=
-github.com/cespare/xxhash/v2 v2.2.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/cespare/xxhash/v2 v2.3.0 h1:UL815xU9SqsFlibzuggzjXhog7bL6oX9BbNZnL2UFvs=
 github.com/cespare/xxhash/v2 v2.3.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
@@ -19,8 +15,6 @@ github.com/fxamacker/cbor/v2 v2.7.0 h1:iM5WgngdRBanHcxugY4JySA0nk1wZorNOpTgCMedv
 github.com/fxamacker/cbor/v2 v2.7.0/go.mod h1:pxXPTn3joSm21Gbwsv0w9OSA2y1HFR9qXEeXQVeNoDQ=
 github.com/go-chi/chi/v5 v5.1.0 h1:acVI1TYaD+hhedDJ3r54HyA6sExp3HfXq7QWEEY/xMw=
 github.com/go-chi/chi/v5 v5.1.0/go.mod h1:DslCQbL2OYiznFReuXYUmQ2hGd1aDpCnlMNITLSKoi8=
-github.com/go-logr/logr v1.4.1 h1:pKouT5E8xu9zeFC39JXRDukb6JFQPXM5p5I91188VAQ=
-github.com/go-logr/logr v1.4.1/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
 github.com/go-logr/logr v1.4.2 h1:6pFjapn8bFcIbiKo3XT4j/BhANplGihG6tvd+8rYgrY=
 github.com/go-logr/logr v1.4.2/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
 github.com/gogo/protobuf v1.3.2 h1:Ov1cvc58UF3b5XjBnZv7+opcTcQFZebYjWzi34vdm4Q=
@@ -45,6 +39,8 @@ github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
 github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk=
 github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
 github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
+github.com/kylelemons/godebug v1.1.0 h1:RPNrshWIDI6G2gRW9EHilWtl7Z6Sb1BR0xunSBf0SNc=
+github.com/kylelemons/godebug v1.1.0/go.mod h1:9/0rRGxNHcop5bhtWyNeEfOS8JIWk580+fNqagV/RAw=
 github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
 github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd h1:TRLaZ9cD/w8PVh93nsPXa1VrQ6jlwL5oN8l14QlcNfg=
 github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
@@ -55,24 +51,16 @@ github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822/go.mod h1:+n7T8m
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 h1:Jamvg5psRIccs7FGNTlIRMkT8wgtp5eCXdBlqhYGL6U=
 github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/prometheus/client_golang v1.19.1 h1:wZWJDwK+NameRJuPGDhlnFgx8e8HN3XHQeLaYJFJBOE=
-github.com/prometheus/client_golang v1.19.1/go.mod h1:mP78NwGzrVks5S2H6ab8+ZZGJLZUq1hoULYBAYBw1Ho=
-github.com/prometheus/client_golang v1.20.4 h1:Tgh3Yr67PaOv/uTqloMsCEdeuFTatm5zIq5+qNN23vI=
-github.com/prometheus/client_golang v1.20.4/go.mod h1:PIEt8X02hGcP8JWbeHyeZ53Y/jReSnHgO035n//V5WE=
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-github.com/prometheus/common v0.53.0 h1:U2pL9w9nmJwJDa4qqLQ3ZaePJ6ZTwt7cMD3AG3+aLCE=
-github.com/prometheus/common v0.53.0/go.mod h1:BrxBKv3FWBIGXw89Mg1AeBq7FSyRzXWI3l3e7W3RN5U=
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-github.com/prometheus/procfs v0.12.0/go.mod h1:pcuDEFsWDnvcgNzo4EEweacyhjeA9Zk3cnaOZAZEfOo=
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-github.com/rogpeppe/go-internal v1.10.0 h1:TMyTOH3F/DB16zRVcYyreMH6GnZZrwQVAoYjRBZyWFQ=
-github.com/rogpeppe/go-internal v1.10.0/go.mod h1:UQnix2H7Ngw/k4C5ijL5+65zddjncjaFoBhdsK/akog=
+github.com/rogpeppe/go-internal v1.12.0 h1:exVL4IDcn6na9z1rAb56Vxr+CgyK3nn3O+epU5NdKM8=
+github.com/rogpeppe/go-internal v1.12.0/go.mod h1:E+RYuTGaKKdloAfM02xzb0FW3Paa99yedzYV+kq4uf4=
 github.com/sirupsen/logrus v1.9.3 h1:dueUQJ1C2q9oE3F7wvmSGAaVtTmUizReu6fjN8uqzbQ=
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@@ -97,8 +85,6 @@ golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20200226121028-0de0cce0169b/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
-golang.org/x/net v0.28.0 h1:a9JDOJc5GMUJ0+UDqmLT86WiEy7iWyIhz8gz8E4e5hE=
-golang.org/x/net v0.28.0/go.mod h1:yqtgsTWOOnlGLG9GFRrK3++bGOUEkNBoHZc8MEDWPNg=
 golang.org/x/net v0.30.0 h1:AcW1SDZMkb8IpzCdQUaIq2sP4sZ4zw+55h6ynffypl4=
 golang.org/x/net v0.30.0/go.mod h1:2wGyMJ5iFasEhkwi13ChkO/t1ECNC4X4eBKkVFyYFlU=
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
@@ -108,14 +94,10 @@ golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5h
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.23.0 h1:YfKFowiIMvtgl1UERQoTPPToxltDeZfbj4H7dVUCwmM=
-golang.org/x/sys v0.23.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/sys v0.26.0 h1:KHjCJyddX0LoSTb3J+vWpupP9p0oznkqVk/IfjymZbo=
 golang.org/x/sys v0.26.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
-golang.org/x/text v0.17.0 h1:XtiM5bkSOt+ewxlOE/aE/AKEHibwj/6gvWMl9Rsh0Qc=
-golang.org/x/text v0.17.0/go.mod h1:BuEKDfySbSR4drPmRPG/7iBdf8hvFMuRexcpahXilzY=
 golang.org/x/text v0.19.0 h1:kTxAhCbGbxhK0IwgSKiMO5awPoDQ0RpfiVYBfK860YM=
 golang.org/x/text v0.19.0/go.mod h1:BuEKDfySbSR4drPmRPG/7iBdf8hvFMuRexcpahXilzY=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
@@ -126,8 +108,6 @@ golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8T
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-google.golang.org/protobuf v1.34.1 h1:9ddQBjfCyZPOHPUiPxpYESBLc+T8P3E+Vo4IbKZgFWg=
-google.golang.org/protobuf v1.34.1/go.mod h1:c6P6GXX6sHbq/GpV6MGZEdwhWPcYBgnhAHhKbcUYpos=
 google.golang.org/protobuf v1.34.2 h1:6xV6lTsCfpGD21XK49h7MhtcApnLqkfYgPcdHftf6hg=
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@@ -141,20 +121,12 @@ gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
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-k8s.io/utils v0.0.0-20240423183400-0849a56e8f22/go.mod h1:OLgZIPagt7ERELqWJFomSt595RzquPNLL48iOWgYOg0=
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-sigs.k8s.io/external-dns v0.14.2 h1:j7rYtQqDAxYfN9N1/BZcRdzUBRsnZp4tZcuZ75ekTlc=
-sigs.k8s.io/external-dns v0.14.2/go.mod h1:GTFER2cqUxkSpYNzzkge8USXp1wJmxqWwpdXr2lYdik=
 sigs.k8s.io/external-dns v0.15.0 h1:4NCSLHONsTmJXD8KReb4hubSz9Cx4goCHz3Dl+pGR+Q=
 sigs.k8s.io/external-dns v0.15.0/go.mod h1:QdocdJu3mk9l4u80fu992lZEKqKd1130h17yNisIC78=
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internal/mikrotik/record.go

@@ -32,9 +32,9 @@ type DNSRecord struct {
 	CName   string `json:"cname,omitempty"`   // CNAME -> endpoint.Targets[0]
 	Text    string `json:"text,omitempty"`    // TXT -> endpoint.Targets[0]
 
+	MXExchange   string `json:"mx-exchange,omitempty"`   // MX -> provider-specific
+	MXPreference string `json:"mx-preference,omitempty"` // MX -> provider-specific
 	// Additional fields for other record types that are not currently supported
-	// MXExchange   string `json:"mx-exchange,omitempty"`   // MX -> provider-specific
-	// MXPreference string `json:"mx-preference,omitempty"` // MX -> provider-specific
 	// SrvPort      string `json:"srv-port,omitempty"`      // SRV -> provider-specific
 	// SrvTarget    string `json:"srv-target,omitempty"`    // SRV -> provider-specific
 	// SrvPriority  string `json:"srv-priority,omitempty"`  // SRV -> provider-specific
@@ -100,6 +100,16 @@ func NewDNSRecord(endpoint *endpoint.Endpoint) (*DNSRecord, error) {
 		record.Text = endpoint.Targets[0]
 		log.Debugf("Text set to: %s", record.Text)
 
+	case "MX":
+		preference, exchange, err := parseMX(endpoint.Targets[0])
+		if err != nil {
+			return nil, err
+		}
+		record.MXPreference = fmt.Sprintf("%v", preference)
+		log.Debugf("MX preference set to: %s", record.MXPreference)
+		record.MXExchange = exchange
+		log.Debugf("MX exchange set to: %s", record.MXExchange)
+
 	default:
 		return nil, fmt.Errorf("unsupported DNS type: %s", endpoint.RecordType)
 	}
@@ -192,6 +202,17 @@ func (r *DNSRecord) toExternalDNSEndpoint() (*endpoint.Endpoint, error) {
 		ep.Targets = endpoint.NewTargets(r.Text)
 		log.Debugf("Text set to: %s", r.Text)
 
+	case "MX":
+		if err := validateDomain(r.MXExchange); err != nil {
+			return nil, err
+		}
+		if err := validateMXPreference(r.MXPreference); err != nil {
+			return nil, err
+		}
+		ep.Targets = endpoint.NewTargets(fmt.Sprintf("%s %s", r.MXPreference, r.MXExchange))
+		log.Debugf("MX preference set to: %s", r.MXPreference)
+		log.Debugf("MX exchange set to: %s", r.MXExchange)
+
 	default:
 		return nil, fmt.Errorf("unsupported DNS type: %s", ep.RecordType)
 	}
@@ -395,3 +416,41 @@ func validateDomain(domain string) error {
 
 	return nil
 }
+
+// validateMXPreference checks if the provided MX preference is valid.
+func validateMXPreference(preference string) error {
+	if preference == "" {
+		return fmt.Errorf("MX preference cannot be empty")
+	}
+	preferenceVal, err := strconv.Atoi(preference)
+	if err != nil {
+		return fmt.Errorf("invalid MX preference value: %s . Value cannot be converrted to int", preference)
+	}
+
+	if preferenceVal < 0 || preferenceVal > 65535 {
+		return fmt.Errorf("invalid MX preference value: %s . Value must be between 0 and 65535", preference)
+	}
+	return nil
+}
+
+// parseMX parses and validates an MX record
+func parseMX(data string) (string, string, error) {
+	data_split := strings.Split(data, " ")
+	if len(data_split) != 2 {
+		return "", "", fmt.Errorf("malformed MX record %s", data)
+	}
+
+	// Extract and Validate MX Preference
+	preference := data_split[0]
+	if err := validateMXPreference(preference); err != nil {
+		return "", "", err
+	}
+
+	// Extract and Validate MX Exchange
+	exchange := data_split[1]
+	if err := validateDomain(exchange); err != nil {
+		return "", "", err
+	}
+
+	return preference, exchange, nil
+}