diff --git a/go.mod b/go.mod index f7f5e80..dbe4e4c 100644 --- a/go.mod +++ b/go.mod @@ -15,22 +15,13 @@ require ( github.com/beorn7/perks v1.0.1 // indirect github.com/cespare/xxhash/v2 v2.2.0 // indirect github.com/davecgh/go-spew v1.1.1 // indirect - github.com/emicklei/go-restful/v3 v3.11.0 // indirect github.com/go-logr/logr v1.3.0 // indirect - github.com/go-openapi/jsonpointer v0.19.6 // indirect - github.com/go-openapi/jsonreference v0.20.2 // indirect - github.com/go-openapi/swag v0.22.3 // indirect github.com/gogo/protobuf v1.3.2 // indirect github.com/golang/protobuf v1.5.4 // indirect - github.com/google/gnostic-models v0.6.8 // indirect github.com/google/gofuzz v1.2.0 // indirect - github.com/google/uuid v1.3.0 // indirect - github.com/josharian/intern v1.0.0 // indirect github.com/json-iterator/go v1.1.12 // indirect - github.com/mailru/easyjson v0.7.7 // indirect github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect github.com/modern-go/reflect2 v1.0.2 // indirect - github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect github.com/prometheus/client_golang v1.18.0 // indirect github.com/prometheus/client_model v0.5.0 // indirect github.com/prometheus/common v0.46.0 // indirect @@ -49,7 +40,6 @@ require ( k8s.io/api v0.29.3 // indirect k8s.io/apimachinery v0.29.3 // indirect k8s.io/klog/v2 v2.110.1 // indirect - k8s.io/kube-openapi v0.0.0-20231010175941-2dd684a91f00 // indirect k8s.io/utils v0.0.0-20230726121419-3b25d923346b // indirect sigs.k8s.io/json v0.0.0-20221116044647-bc3834ca7abd // indirect sigs.k8s.io/structured-merge-diff/v4 v4.4.1 // indirect diff --git a/go.sum b/go.sum index 153f620..ecc8f4a 100644 --- a/go.sum +++ b/go.sum @@ -5,7 +5,6 @@ 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/cespare/xxhash/v2 v2.2.0 h1:DC2CZ1Ep5Y4k3ZQ899DldepgrayRUGE6BBZ/cd9Cj44= github.com/cespare/xxhash/v2 v2.2.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs= -github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E= github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c= github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= @@ -19,8 +18,6 @@ github.com/go-openapi/jsonreference v0.20.2 h1:3sVjiK66+uXK/6oQ8xgcRKcFgQ5KXa2Kv github.com/go-openapi/jsonreference v0.20.2/go.mod h1:Bl1zwGIM8/wsvqjsOQLJ/SH+En5Ap4rVB5KVcIDZG2k= github.com/go-openapi/swag v0.22.3 h1:yMBqmnQ0gyZvEb/+KzuWZOXgllrXT4SADYbvDaXHv/g= github.com/go-openapi/swag v0.22.3/go.mod h1:UzaqsxGiab7freDnrUUra0MwWfN/q7tE4j+VcZ0yl14= -github.com/go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572 h1:tfuBGBXKqDEevZMzYi5KSi8KkcZtzBcTgAUUtapy0OI= -github.com/go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572/go.mod h1:9Pwr4B2jHnOSGXyyzV8ROjYa2ojvAY6HCGYYfMoC3Ls= github.com/gogo/protobuf v1.3.2 h1:Ov1cvc58UF3b5XjBnZv7+opcTcQFZebYjWzi34vdm4Q= github.com/gogo/protobuf v1.3.2/go.mod h1:P1XiOD3dCwIKUDQYPy72D8LYyHL2YPYrpS2s69NZV8Q= github.com/golang/protobuf v1.3.1/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U= @@ -34,8 +31,6 @@ github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeN github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg= github.com/google/gofuzz v1.2.0 h1:xRy4A+RhZaiKjJ1bPfwQ8sedCA+YS2YcCHW6ec7JMi0= github.com/google/gofuzz v1.2.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg= -github.com/google/pprof v0.0.0-20210720184732-4bb14d4b1be1 h1:K6RDEckDVWvDI9JAJYCmNdQXq6neHJOYx3V6jnqNEec= -github.com/google/pprof v0.0.0-20210720184732-4bb14d4b1be1/go.mod h1:kpwsk12EmLew5upagYY7GY0pfYCcupk39gWOCRROcvE= github.com/google/uuid v1.3.0 h1:t6JiXgmwXMjEs8VusXIJk2BXHsn+wx8BZdTaoZ5fu7I= github.com/google/uuid v1.3.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo= github.com/gorilla/mux v1.8.1 h1:TuBL49tXwgrFYWhqrNgrUNEY92u81SPhu7sTdzQEiWY= @@ -50,11 +45,8 @@ github.com/json-iterator/go v1.1.12 h1:PV8peI4a0ysnczrg+LtxykD8LfKY9ML6u2jnxaEnr github.com/json-iterator/go v1.1.12/go.mod h1:e30LSqwooZae/UwlEbR2852Gd8hjQvJoHmT4TnhNGBo= github.com/kisielk/errcheck v1.5.0/go.mod h1:pFxgyoBC7bSaBwPgfKdkLd5X25qrDl4LWUI2bnpBCr8= github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck= -github.com/kr/pretty v0.2.1/go.mod h1:ipq/a2n7PKx3OHsz4KJII5eveXtPO4qwEXGdVfWzfnI= github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE= github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk= -github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ= -github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI= github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY= github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE= github.com/mailru/easyjson v0.7.7 h1:UGYAvKxe3sBsEDzO8ZeWOSlIQfWFlxbzLZe7hwFURr0= @@ -66,10 +58,6 @@ github.com/modern-go/reflect2 v1.0.2 h1:xBagoLtFs94CBntxluKeaWgTMpvLxC4ur3nMaC9G github.com/modern-go/reflect2 v1.0.2/go.mod h1:yWuevngMOJpCy52FWWMvUC8ws7m/LJsjYzDa0/r8luk= github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 h1:C3w9PqII01/Oq1c1nUAm88MOHcQC9l5mIlSMApZMrHA= github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822/go.mod h1:+n7T8mK8HuQTcFwEeznm/DIxMOiR9yIdICNftLE1DvQ= -github.com/onsi/ginkgo/v2 v2.13.0 h1:0jY9lJquiL8fcf3M4LAXN5aMlS/b2BV86HFFPCPMgE4= -github.com/onsi/ginkgo/v2 v2.13.0/go.mod h1:TE309ZR8s5FsKKpuB1YAQYBzCaAfUgatB/xlT/ETL/o= -github.com/onsi/gomega v1.29.0 h1:KIA/t2t5UBzoirT4H9tsML45GEbo3ouUnBHsCfD2tVg= -github.com/onsi/gomega v1.29.0/go.mod h1:9sxs+SwGrKI0+PWe4Fxa9tFQQBG5xSsSbMXOI8PPpoQ= github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM= github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4= github.com/prometheus/client_golang v1.18.0 h1:HzFfmkOzH5Q8L8G+kSJKUx5dtG87sewO+FoDDqP5Tbk= @@ -87,13 +75,8 @@ github.com/sirupsen/logrus v1.9.3/go.mod h1:naHLuLoDiP4jHNo9R0sCBMtWGeIprob74mVs github.com/spf13/pflag v1.0.5 h1:iy+VFUOCP1a+8yFto/drg2CJ5u0yRoB7fZw3DKv/JXA= github.com/spf13/pflag v1.0.5/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg= github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME= -github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw= -github.com/stretchr/objx v0.5.0/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpEOglKo= github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI= github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg= -github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg= -github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU= -github.com/stretchr/testify v1.8.1/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4= github.com/stretchr/testify v1.8.4 h1:CcVxjf3Q8PM0mHUKJCdn+eZZtm5yQwehR5yeSVQQcUk= github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo= github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74= @@ -134,8 +117,6 @@ golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGm golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo= golang.org/x/tools v0.0.0-20200619180055-7c47624df98f/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE= golang.org/x/tools v0.0.0-20210106214847-113979e3529a/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA= -golang.org/x/tools v0.16.1 h1:TLyB3WofjdOEepBHAU20JdNC1Zbg87elYofWYAY5oZA= -golang.org/x/tools v0.16.1/go.mod h1:kYVVN6I1mBNoB1OX+noeBjbRk4IUEPa7JJ+TJMEooJ0= golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= 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= diff --git a/internal/config.go b/internal/config.go index f9fe4ef..ce3c8cd 100644 --- a/internal/config.go +++ b/internal/config.go @@ -12,6 +12,7 @@ type Config = struct { LogLevel string `default:"Info" env:"MAIL_DNS_SERVICE_LOGLEVEL"` LabelSelector string `default:"kops.k8s.io/instance-role=Node" env:"MAIL_DNS_SERVICE_LABELSELECTOR"` HcloudToken string `default:"" env:"MAIL_DNS_SERVICE_HCLOUD_TOKEN"` + Namespace string `default:"mailu" env:"MAIL_DNS_SERVICE_NAMESPACE"` } func GenConfig() (cfg *Config, err error) { diff --git a/internal/config_test.go b/internal/config_test.go index b7edd7f..79b6bf7 100644 --- a/internal/config_test.go +++ b/internal/config_test.go @@ -9,6 +9,7 @@ var defaultConfig = Config{ LogLevel: "Info", LabelSelector: "kops.k8s.io/instance-role=Node", HcloudToken: "", + Namespace: "mailu", } func TestConfigDefaults(t *testing.T) { diff --git a/internal/k8s.go b/internal/k8s.go index 9e6a39e..6ec06ad 100644 --- a/internal/k8s.go +++ b/internal/k8s.go @@ -2,51 +2,106 @@ package internal import ( "bytes" + "context" "errors" "fmt" "html/template" - "k8s.io/client-go/kubernetes" + "k8s.io/client-go/kubernetes/scheme" "k8s.io/client-go/rest" ) -func RecreateDnsCrd() error { - k8s_config, err := rest.InClusterConfig() - if err != nil { - return errors.New(fmt.Sprintf("Could not create in cluster k8s config: %v", err)) - } - _, err = kubernetes.NewForConfig(k8s_config) - if err != nil { - return errors.New(fmt.Sprintf("Could not create k8s client: %v", err)) - } - return nil -} - var CRD_TEMPLATE = ` -apiVersion: externaldns.k8s.io/v1alpha1 -kind: DNSEndpoint -metadata: - name: {{ .Name }} - annotations: - external.dns/provider: cf -spec: - endpoints: - - dnsName: mail - recordTTL: 180 - recordType: A - targets: - - {{ .IP }} +{ + "apiVersion": "externaldns.k8s.io/v1alpha1", + "kind": "DNSEndpoint", + "metadata": { + "name": "{{ .Name }}", + "annotations": { + "external.dns/provider": "cf" + } + }, + "spec": { + "endpoints": [ + { + "dnsName": "mail", + "recordTTL": 180, + "recordType": "A", + "targets": [ + {{ range .IPs -}} + "{{ . }}", + {{ end -}} + ] + } + ] + } +} ` type CrdConfig struct { Name string - IP string + IPs []string } -func generateCrd(name string, ip string) (string, error) { +func RecreateDnsCrd(cfg *Config, name string, ips []string) error { + + routeclient, err := createRestClient() + + if err != nil { + return errors.New(fmt.Sprintf("Error creating REST Client: %v", err.Error())) + } + + body, err := generateCrd(name, ips) + + if err != nil { + return errors.New(fmt.Sprintf("Error generating CRD: %v", err.Error())) + } + + decode := scheme.Codecs.UniversalDeserializer().Decode + + obj, _, err := decode([]byte(body), nil, nil) + if err != nil { + return errors.New(fmt.Sprintf("Could not deserialize CRD: %v", err.Error())) + } + + res := routeclient.Post(). + Namespace(cfg.Namespace). + Resource("routes"). + Body(&obj). + Do(context.TODO()) + + var status int + res.StatusCode(&status) + + if status >= 200 && status <= 400 { + return errors.New(fmt.Sprintf("Failed to post CRD to kube api: %v", res.Error().Error())) + } + + return nil +} + +func createRestClient() (*rest.RESTClient, error) { + k8s_config, err := rest.InClusterConfig() + if err != nil { + return nil, errors.New(fmt.Sprintf("Could not create in cluster k8s config: %v", err)) + } + + k8s_config.APIPath = "/apis" + k8s_config.NegotiatedSerializer = scheme.Codecs.WithoutConversion() + + routeclient, err := rest.RESTClientFor(k8s_config) + + if err != nil { + return nil, errors.New(fmt.Sprintf("Could not create k8s client: %v", err)) + } + return routeclient, nil + +} + +func generateCrd(name string, ips []string) (string, error) { config := CrdConfig{ Name: name, - IP: ip, + IPs: ips, } tmpl, err := template.New("crd").Parse(CRD_TEMPLATE) if err != nil { diff --git a/internal/k8s_test.go b/internal/k8s_test.go new file mode 100644 index 0000000..588e9ce --- /dev/null +++ b/internal/k8s_test.go @@ -0,0 +1,40 @@ +package internal + +import ( + "testing" +) + +func TestGenerateCRD(t *testing.T) { + expected := ` +{ + "apiVersion": "externaldns.k8s.io/v1alpha1", + "kind": "DNSEndpoint", + "metadata": { + "name": "test", + "annotations": { + "external.dns/provider": "cf" + } + }, + "spec": { + "endpoints": [ + { + "dnsName": "mail", + "recordTTL": 180, + "recordType": "A", + "targets": [ + "192.168.0.1", + "192.168.0.2", + ] + } + ] + } +} +` + got, err := generateCrd("test", []string{"192.168.0.1", "192.168.0.2"}) + if err != nil { + t.Errorf("%s", err.Error()) + } + if expected != got { + t.Errorf("got %+v, want %+v", got, expected) + } +}