diff --git a/datasource.go b/datasource.go index ee3fbcb..7998982 100644 --- a/datasource.go +++ b/datasource.go @@ -25,7 +25,7 @@ type ConsulDatasource struct { func (t *ConsulDatasource) Query(ctx context.Context, req *datasource.DatasourceRequest) (*datasource.DatasourceResponse, error) { log.Printf("called consul plugin with: \n%v", req) - consul, consulToken, err := newConsulFromReq(req) + consul, err := newConsulFromReq(req) if err != nil { return generateErrorResponse(err, ""), nil } @@ -35,15 +35,15 @@ func (t *ConsulDatasource) Query(ctx context.Context, req *datasource.Datasource return generateErrorResponse(fmt.Errorf("error parsing queries: %v", err), ""), nil } - return handleQueries(consul, consulToken, queries), nil + return handleQueries(consul, queries), nil } -func handleQueries(consul *api.Client, consulToken string, queries []query) *datasource.DatasourceResponse { +func handleQueries(consul *api.Client, queries []query) *datasource.DatasourceResponse { if len(queries) == 0 { return generateErrorResponse(fmt.Errorf("no queries found in request"), "") } if len(queries) == 1 && queries[0].Type == "test" { - return handleTest(consul, consulToken, queries[0].RefID) + return handleTest(consul, queries[0].RefID) } switch queries[0].Format { @@ -55,15 +55,12 @@ func handleQueries(consul *api.Client, consulToken string, queries []query) *dat return generateErrorResponse(fmt.Errorf("unknown format, nothing to handle"), "") } -func handleTest(consul *api.Client, consulToken, refID string) *datasource.DatasourceResponse { - e, _, err := consul.ACL().Info(consulToken, &api.QueryOptions{}) +func handleTest(consul *api.Client, refID string) *datasource.DatasourceResponse { + _, err := consul.Status().Leader() if err != nil { return generateErrorResponse(fmt.Errorf("error retrieving acl info for token: %v", err), refID) } - if e != nil && e.ID == consulToken { - return &datasource.DatasourceResponse{} - } - return generateErrorResponse(fmt.Errorf("consulToken is not valid"), refID) + return &datasource.DatasourceResponse{} } func handleTimeseries(consul *api.Client, qs []query) *datasource.DatasourceResponse { @@ -353,29 +350,25 @@ type query struct { Columns string `json:"columns"` } -func newConsulFromReq(req *datasource.DatasourceRequest) (*api.Client, string, error) { +func newConsulFromReq(req *datasource.DatasourceRequest) (*api.Client, error) { consulToken := req.Datasource.DecryptedSecureJsonData["consulToken"] - if consulToken == "" { - // see https://www.consul.io/docs/acl/acl-system.html#acl-tokens - consulToken = "anonymous" - } var jsonData map[string]interface{} err := json.Unmarshal([]byte(req.Datasource.JsonData), &jsonData) if err != nil { - return nil, "", fmt.Errorf("unable to get consulAddr: %v", err) + return nil, fmt.Errorf("unable to get consulAddr: %v", err) } consulAddr := jsonData["consulAddr"].(string) if consulAddr == "" { - return nil, "", fmt.Errorf("unable to get consulAddr") + return nil, fmt.Errorf("unable to get consulAddr") } consul, err := newConsul(req.Datasource.Id, consulAddr, consulToken) if err != nil { - return nil, "", fmt.Errorf("creating consul client failed: %v", err) + return nil, fmt.Errorf("creating consul client failed: %v", err) } - return consul, consulToken, nil + return consul, nil } type consulClientEntry struct { diff --git a/datasource_test.go b/datasource_test.go index 470305f..9ce043f 100644 --- a/datasource_test.go +++ b/datasource_test.go @@ -46,30 +46,6 @@ func TestQuery(t *testing.T) { }, wantErr: false, }, - { - dr: &datasource.DatasourceRequest{ - Datasource: &datasource.DatasourceInfo{ - DecryptedSecureJsonData: map[string]string{ - "consulToken": srv.Config.ACLMasterToken, - }, - JsonData: fmt.Sprintf("{\"consulAddr\":\"%s\"}", srv.HTTPAddr), - }, - Queries: []*datasource.Query{ - { - ModelJson: "{abc}", - }, - }, - }, - wantErr: true, - }, - { - dr: &datasource.DatasourceRequest{ - Datasource: &datasource.DatasourceInfo{ - JsonData: fmt.Sprintf("{\"consulAddr\":\"%s\"}", srv.HTTPAddr), - }, - }, - wantErr: true, - }, } ds := &ConsulDatasource{} @@ -116,15 +92,6 @@ func TestHandleQueries(t *testing.T) { }, golden: "test.json", }, - { - query: &query{ - Type: "test", - RefID: "test", - }, - consulToken: "wrongToken", - golden: "test-error.json", - wantErr: "consulToken is not valid", - }, { query: &query{ Format: "timeseries", @@ -235,7 +202,7 @@ func TestHandleQueries(t *testing.T) { qs = append(qs, *test.query) } - qrs := handleQueries(consul, consulToken, qs) + qrs := handleQueries(consul, qs) var errorString = "" if len(qrs.Results) > 0 { errorString = qrs.Results[0].Error diff --git a/example/README.md b/example/README.md index e2e1076..1a99031 100644 --- a/example/README.md +++ b/example/README.md @@ -18,7 +18,7 @@ go run main.go 5. Fill in the: 1. name: `Consul` 2. Consul address: `http://localhost:8500` - 3. Consul token: `master` + 3. Consul token: `` 6. Click the `Save & Test` button # Import the example dashboard diff --git a/example/go.mod b/example/go.mod new file mode 100644 index 0000000..4fa5d79 --- /dev/null +++ b/example/go.mod @@ -0,0 +1,8 @@ +module github.com/sbueringer/grafana-consul-datasource/example + +go 1.15 + +require ( + github.com/hashicorp/consul/api v1.7.0 + github.com/hashicorp/consul/sdk v0.6.0 +) diff --git a/example/go.sum b/example/go.sum new file mode 100644 index 0000000..4e10c25 --- /dev/null +++ b/example/go.sum @@ -0,0 +1,123 @@ +github.com/armon/circbuf v0.0.0-20150827004946-bbbad097214e/go.mod h1:3U/XgcO3hCbHZ8TKRvWD2dDTCfh9M9ya+I9JpbB7O8o= +github.com/armon/go-metrics v0.0.0-20180917152333-f0300d1749da h1:8GUt8eRujhVEGZFFEjBj46YV4rDjvGrNxb0KMWYkL2I= +github.com/armon/go-metrics v0.0.0-20180917152333-f0300d1749da/go.mod h1:Q73ZrmVTwzkszR9V5SSuryQ31EELlFMUz1kKyl939pY= +github.com/armon/go-radix v0.0.0-20180808171621-7fddfc383310/go.mod h1:ufUuZ+zHj4x4TnLV4JWEpy2hxWSpsRywHrMgIH9cCH8= 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h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= +gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= +gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo= +gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= +gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= +gopkg.in/yaml.v2 v2.2.8 h1:obN1ZagJSUGI0Ek/LBmuj4SNLPfIny3KsKFopxRdj10= +gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= diff --git a/example/main.go b/example/main.go index 4f8caf9..1e4491b 100644 --- a/example/main.go +++ b/example/main.go @@ -8,9 +8,10 @@ import ( "os/signal" "path/filepath" "sync" + "testing" "github.com/hashicorp/consul/api" - "github.com/hashicorp/consul/testutil" + "github.com/hashicorp/consul/sdk/testutil" ) func main() { @@ -37,14 +38,11 @@ func main() { } func startServer() *testutil.TestServer { - srv, err := testutil.NewTestServerConfig(func(c *testutil.TestServerConfig) { + srv, err := testutil.NewTestServerConfigT(&testing.T{}, func(c *testutil.TestServerConfig) { c.Ports = &testutil.TestPortConfig{ HTTP: 8500, } c.Datacenter = "default" - c.ACLDefaultPolicy = "allow" - c.ACLDatacenter = "default" - c.ACLMasterToken = "master" c.LogLevel = "debug" }) if err != nil { @@ -58,15 +56,6 @@ func startServer() *testutil.TestServer { panic(fmt.Errorf("could not create consul client: %v", err)) } - _, _, err = consul.ACL().Create(&api.ACLEntry{ - ID: "master", - Type: "client", - Rules: "key \"\" { policy = \"write\" }", - }, &api.WriteOptions{}) - if err != nil { - panic(fmt.Errorf("could not create master acl: %v", err)) - } - files, err := filepath.Glob("data/data.json") if err != nil { panic(fmt.Errorf("error getting import json files")) diff --git a/example/main_test.go b/example/main_test.go new file mode 100644 index 0000000..6470a98 --- /dev/null +++ b/example/main_test.go @@ -0,0 +1,30 @@ +package main + +import ( + "fmt" + "github.com/hashicorp/consul/api" + "testing" +) + +func TestAnonymous(t *testing.T) { + + client, err := newConsul("http://localhost:8500", "") + if err != nil { + panic(err) + } + + kv, _, err := client.KV().Get("registry/apiregistration.k8s.io/apiservices/v1.apps/apiVersion", &api.QueryOptions{}) + if err != nil { + panic(err) + } + fmt.Printf("%v", kv) + + status := client.Status() + fmt.Printf("%v", status) + + leader, err := client.Status().Leader() + if err != nil { + panic(err) + } + fmt.Printf(leader) +} diff --git a/src/partials/config.html b/src/partials/config.html index adfb58f..fd7400d 100644 --- a/src/partials/config.html +++ b/src/partials/config.html @@ -28,7 +28,7 @@
Consul Address
Consul Token

If Consul Token is set, it has to be a valid Consul Token which is able to read the data you want to access. - If Consul Token is not set, "anonymous' is used (see Consul documentation). If ACLs are disabled in Consul, "anonymous" should be able to read the necessary data. + If Consul Token is not set, no token will be set on the Consul client. More details can be found in the Consul documentation.