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Matt Spilchen
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Apr 10, 2024
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,188 @@ | ||
| /* | ||
| (c) Copyright [2023-2024] Open Text. | ||
| Licensed under the Apache License, Version 2.0 (the "License"); | ||
| You may not use this file except in compliance with the License. | ||
| You may obtain a copy of the License at | ||
| http://www.apache.org/licenses/LICENSE-2.0 | ||
| Unless required by applicable law or agreed to in writing, software | ||
| distributed under the License is distributed on an "AS IS" BASIS, | ||
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| See the License for the specific language governing permissions and | ||
| limitations under the License. | ||
| */ | ||
|
|
||
| package vclusterops | ||
|
|
||
| import ( | ||
| "encoding/json" | ||
| "errors" | ||
| "fmt" | ||
|
|
||
| "github.com/vertica/vcluster/vclusterops/util" | ||
| ) | ||
|
|
||
| type httpsStartReplicationOp struct { | ||
| opBase | ||
| opHTTPSBase | ||
| hostRequestBodyMap map[string]string | ||
| sourceDB string | ||
| targetHosts string | ||
| targetDB string | ||
| targetUserName string | ||
| targetPassword *string | ||
| tlsConfig string | ||
| } | ||
|
|
||
| func makeHTTPSStartReplicationOp(dbName string, sourceHosts []string, | ||
| sourceUseHTTPPassword bool, sourceUserName string, | ||
| sourceHTTPPassword *string, targetUseHTTPPassword bool, targetDB, targetUserName, targetHosts string, | ||
| targetHTTPSPassword *string, tlsConfig string) (httpsStartReplicationOp, error) { | ||
| op := httpsStartReplicationOp{} | ||
| op.name = "HTTPSStartReplicationOp" | ||
| op.description = "Start database replication" | ||
| op.sourceDB = dbName | ||
| op.hosts = sourceHosts | ||
| op.useHTTPPassword = sourceUseHTTPPassword | ||
| op.targetDB = targetDB | ||
| op.targetHosts = targetHosts | ||
| op.tlsConfig = tlsConfig | ||
|
|
||
| if sourceUseHTTPPassword { | ||
| err := util.ValidateUsernameAndPassword(op.name, sourceUseHTTPPassword, sourceUserName) | ||
| if err != nil { | ||
| return op, err | ||
| } | ||
| op.userName = sourceUserName | ||
| op.httpsPassword = sourceHTTPPassword | ||
| } | ||
| if targetUseHTTPPassword { | ||
| err := util.ValidateUsernameAndPassword(op.name, targetUseHTTPPassword, targetUserName) | ||
| if err != nil { | ||
| return op, err | ||
| } | ||
| op.targetUserName = targetUserName | ||
| op.targetPassword = targetHTTPSPassword | ||
| } | ||
|
|
||
| return op, nil | ||
| } | ||
|
|
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| type replicateRequestData struct { | ||
| TargetHost string `json:"host"` | ||
| TargetDB string `json:"dbname"` | ||
| TargetUserName string `json:"user,omitempty"` | ||
| TargetPassword *string `json:"password,omitempty"` | ||
| TLSConfig string `json:"tls_config,omitempty"` | ||
| } | ||
|
|
||
| func (op *httpsStartReplicationOp) setupRequestBody(hosts []string) error { | ||
| op.hostRequestBodyMap = make(map[string]string) | ||
|
|
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| for _, host := range hosts { | ||
| replicateData := replicateRequestData{} | ||
| replicateData.TargetHost = op.targetHosts | ||
| replicateData.TargetDB = op.targetDB | ||
| replicateData.TargetUserName = op.targetUserName | ||
| replicateData.TargetPassword = op.targetPassword | ||
| replicateData.TLSConfig = op.tlsConfig | ||
|
|
||
| dataBytes, err := json.Marshal(replicateData) | ||
| if err != nil { | ||
| return fmt.Errorf("[%s] fail to marshal request data to JSON string, detail %w", op.name, err) | ||
| } | ||
|
|
||
| op.hostRequestBodyMap[host] = string(dataBytes) | ||
| } | ||
|
|
||
| return nil | ||
| } | ||
|
|
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| func (op *httpsStartReplicationOp) setupClusterHTTPRequest(hosts []string) error { | ||
| for _, host := range hosts { | ||
| httpRequest := hostHTTPRequest{} | ||
| httpRequest.Method = PostMethod | ||
| httpRequest.buildHTTPSEndpoint("replicate/start") | ||
| if op.useHTTPPassword { | ||
| httpRequest.Password = op.httpsPassword | ||
| httpRequest.Username = op.userName | ||
| } | ||
| httpRequest.RequestData = op.hostRequestBodyMap[host] | ||
| op.clusterHTTPRequest.RequestCollection[host] = httpRequest | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| func (op *httpsStartReplicationOp) prepare(execContext *opEngineExecContext) error { | ||
| if len(execContext.nodesInfo) == 0 { | ||
| return fmt.Errorf(`[%s] cannot find any hosts in OpEngineExecContext`, op.name) | ||
| } | ||
| // a source host will be an up host based on the input provided for hosts | ||
| var sourceHosts []string | ||
| for _, node := range execContext.nodesInfo { | ||
| if node.State != util.NodeDownState { | ||
| sourceHosts = append(sourceHosts, node.Address) | ||
| } | ||
| } | ||
| sourceHosts = util.SliceCommon(op.hosts, sourceHosts) | ||
| if len(sourceHosts) == 0 { | ||
| return fmt.Errorf(`[%s] cannot find any up hosts from source database %s`, op.name, op.sourceDB) | ||
| } | ||
| op.hosts = []string{sourceHosts[0]} | ||
|
|
||
| err := op.setupRequestBody(op.hosts) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| execContext.dispatcher.setup(op.hosts) | ||
| return op.setupClusterHTTPRequest(op.hosts) | ||
| } | ||
|
|
||
| func (op *httpsStartReplicationOp) execute(execContext *opEngineExecContext) error { | ||
| if err := op.runExecute(execContext); err != nil { | ||
| return err | ||
| } | ||
|
|
||
| return op.processResult(execContext) | ||
| } | ||
|
|
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| func (op *httpsStartReplicationOp) processResult(_ *opEngineExecContext) error { | ||
| var allErrs error | ||
|
|
||
| for host, result := range op.clusterHTTPRequest.ResultCollection { | ||
| op.logResponse(host, result) | ||
|
|
||
| if result.isUnauthorizedRequest() { | ||
| // skip checking response from other nodes because we will get the same error there | ||
| return result.err | ||
| } | ||
| if !result.isPassing() { | ||
| allErrs = errors.Join(allErrs, result.err) | ||
| continue | ||
| } | ||
|
|
||
| // decode the json-format response | ||
| // The successful response object will be a dictionary as below: | ||
| // {"detail": "REPLICATE"} | ||
| startRepRsp, err := op.parseAndCheckMapResponse(host, result.content) | ||
| if err != nil { | ||
| err = fmt.Errorf("[%s] fail to parse result on host %s, details: %w", op.name, host, err) | ||
| allErrs = errors.Join(allErrs, err) | ||
| continue | ||
| } | ||
|
|
||
| // verify if the response's content is correct | ||
| const startReplicationOpSuccMsg = "REPLICATE" | ||
| if startRepRsp["detail"] != startReplicationOpSuccMsg { | ||
| err = fmt.Errorf(`[%s] response detail should be '%s' but got '%s'`, op.name, startReplicationOpSuccMsg, startRepRsp["detail"]) | ||
| allErrs = errors.Join(allErrs, err) | ||
| } | ||
| } | ||
|
|
||
| return allErrs | ||
| } | ||
|
|
||
| func (op *httpsStartReplicationOp) finalize(_ *opEngineExecContext) error { | ||
| return nil | ||
| } |
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