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Posted to commits@trafficcontrol.apache.org by de...@apache.org on 2018/09/13 19:54:43 UTC
[trafficcontrol] 01/03: Add TO Go cachegroups/id/deliveryservices
This is an automated email from the ASF dual-hosted git repository.
dewrich pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/trafficcontrol.git
commit 65e27d2cb7c12b25c97bc98b09ffa6577bb6e1ff
Author: Robert Butts <ro...@apache.org>
AuthorDate: Fri May 18 17:52:02 2018 -0600
Add TO Go cachegroups/id/deliveryservices
---
.../traffic_ops_golang/cachegroup/dspost.go | 299 +++++++++++++++++++++
traffic_ops/traffic_ops_golang/routes.go | 1 +
2 files changed, 300 insertions(+)
diff --git a/traffic_ops/traffic_ops_golang/cachegroup/dspost.go b/traffic_ops/traffic_ops_golang/cachegroup/dspost.go
new file mode 100644
index 0000000..01ac0e9
--- /dev/null
+++ b/traffic_ops/traffic_ops_golang/cachegroup/dspost.go
@@ -0,0 +1,299 @@
+package cachegroup
+
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you 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.
+ */
+
+import (
+ "database/sql"
+ "encoding/json"
+ "errors"
+ "fmt"
+ "net/http"
+ "strconv"
+
+ "github.com/apache/trafficcontrol/lib/go-tc"
+ "github.com/apache/trafficcontrol/traffic_ops/traffic_ops_golang/api"
+ "github.com/apache/trafficcontrol/traffic_ops/traffic_ops_golang/auth"
+ "github.com/apache/trafficcontrol/traffic_ops/traffic_ops_golang/tenant"
+
+ "github.com/lib/pq"
+)
+
+type CachegroupPostDSReq struct {
+ DeliveryServices []int64 `json:"deliveryServices"`
+}
+
+func DSPostHandler(w http.ResponseWriter, r *http.Request) {
+ inf, userErr, sysErr, errCode := api.NewInfo(r, []string{"id"}, []string{"id"})
+ if userErr != nil || sysErr != nil {
+ api.HandleErr(w, r, inf.Tx.Tx, errCode, userErr, sysErr)
+ return
+ }
+ defer inf.Close()
+
+ req := CachegroupPostDSReq{}
+ if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
+ api.HandleErr(w, r, inf.Tx.Tx, http.StatusBadRequest, errors.New("malformed JSON: "+err.Error()), nil)
+ return
+ }
+ vals := map[string]interface{}{
+ "alerts": tc.CreateAlerts(tc.SuccessLevel, "Delivery services successfully assigned to all the servers of cache group "+strconv.Itoa(inf.IntParams["id"])+".").Alerts,
+ }
+ api.RespWriterVals(w, r, inf.Tx.Tx, vals)(postDSes(inf.Tx.Tx, inf.User, int64(inf.IntParams["id"]), req.DeliveryServices))
+}
+
+type CacheGroupPostDSResp struct {
+ ID int64 `json:"id"`
+ ServerNames []tc.CacheName `json:"serverNames"`
+ DeliveryServices []int64 `json:"deliveryServices"`
+}
+
+func postDSes(tx *sql.Tx, user *auth.CurrentUser, cgID int64, dsIDs []int64) (CacheGroupPostDSResp, error) {
+ cdnName, err := getCachegroupCDN(tx, cgID)
+ if err != nil {
+ return CacheGroupPostDSResp{}, errors.New("getting cachegroup CDN: " + err.Error())
+ }
+
+ tenantIDs, err := getDSTenants(tx, dsIDs)
+ if err != nil {
+ return CacheGroupPostDSResp{}, errors.New("getting delivery service tennat IDs: " + err.Error())
+ }
+ for _, tenantID := range tenantIDs {
+ ok, err := tenant.IsResourceAuthorizedToUserTx(int(tenantID), user, tx)
+ if err != nil {
+ return CacheGroupPostDSResp{}, errors.New("checking tenancy: " + err.Error())
+ }
+ if !ok {
+ return CacheGroupPostDSResp{}, errors.New("not authorized for delivery service tenant " + strconv.FormatInt(tenantID, 10))
+ }
+ }
+
+ if err := verifyDSesCDN(tx, dsIDs, cdnName); err != nil {
+ return CacheGroupPostDSResp{}, errors.New("verifying delivery service CDNs match cachegroup server CDNs: " + err.Error())
+ }
+ cgServers, err := getCachegroupServers(tx, cgID)
+ if err != nil {
+ return CacheGroupPostDSResp{}, errors.New("getting cachegroup server names " + err.Error())
+ }
+ if err := insertCachegroupDSes(tx, cgID, dsIDs); err != nil {
+ return CacheGroupPostDSResp{}, errors.New("inserting cachegroup delivery services: " + err.Error())
+ }
+
+ if err := updateParams(tx, dsIDs); err != nil {
+ return CacheGroupPostDSResp{}, errors.New("updating delivery service parameters: " + err.Error())
+ }
+ api.CreateChangeLogRawTx(api.ApiChange, fmt.Sprintf("assign servers in cache group %v to deliveryservices %v", cgID, dsIDs), user, tx)
+ return CacheGroupPostDSResp{ID: cgID, ServerNames: cgServers, DeliveryServices: dsIDs}, nil
+}
+
+func insertCachegroupDSes(tx *sql.Tx, cgID int64, dsIDs []int64) error {
+ _, err := tx.Exec(`
+INSERT INTO deliveryservice_server (deliveryservice, server) (
+ SELECT unnest($1::int[]), server.id
+ FROM server
+ JOIN type on type.id = server.type
+ WHERE server.cachegroup = $2
+ AND (type.name LIKE 'EDGE%' OR type.name LIKE 'ORG%')
+) ON CONFLICT DO NOTHING
+`, pq.Array(dsIDs), cgID)
+ if err != nil {
+ return errors.New("inserting cachegroup servers: " + err.Error())
+ }
+ return nil
+}
+
+func getCachegroupServers(tx *sql.Tx, cgID int64) ([]tc.CacheName, error) {
+ q := `
+SELECT server.host_name FROM server
+JOIN type on type.id = server.type
+WHERE server.cachegroup = $1
+AND (type.name LIKE 'EDGE%' OR type.name LIKE 'ORG%')
+`
+ rows, err := tx.Query(q, cgID)
+ if err != nil {
+ return nil, errors.New("selecting cachegroup servers: " + err.Error())
+ }
+ defer rows.Close()
+ names := []tc.CacheName{}
+ for rows.Next() {
+ name := ""
+ if err := rows.Scan(&name); err != nil {
+ return nil, errors.New("querying cachegroup server names: " + err.Error())
+ }
+ names = append(names, tc.CacheName(name))
+ }
+ return names, nil
+}
+
+func verifyDSesCDN(tx *sql.Tx, dsIDs []int64, cdn string) error {
+ q := `
+SELECT count(cdn.name)
+FROM cdn
+JOIN deliveryservice as ds on ds.cdn_id = cdn.id
+WHERE ds.id = ANY($1::bigint[])
+AND cdn.name <> $2::text
+`
+ count := 0
+ if err := tx.QueryRow(q, pq.Array(dsIDs), cdn).Scan(&count); err != nil {
+ return errors.New("querying cachegroup CDNs: " + err.Error())
+ }
+ if count > 0 {
+ return errors.New("servers/deliveryservices do not belong to same cdn '" + cdn + "'")
+ }
+ return nil
+}
+
+func getCachegroupCDN(tx *sql.Tx, cgID int64) (string, error) {
+ q := `
+SELECT cdn.name
+FROM cdn
+JOIN server on server.cdn_id = cdn.id
+JOIN type on server.type = type.id
+WHERE server.cachegroup = $1
+AND (type.name LIKE 'EDGE%' OR type.name LIKE 'ORG%')
+`
+ rows, err := tx.Query(q, cgID)
+ if err != nil {
+ return "", errors.New("selecting cachegroup CDNs: " + err.Error())
+ }
+ defer rows.Close()
+ cdn := ""
+ for rows.Next() {
+ serverCDN := ""
+ if err := rows.Scan(&serverCDN); err != nil {
+ return "", errors.New("scanning cachegroup CDN: " + err.Error())
+ }
+ if cdn == "" {
+ cdn = serverCDN
+ }
+ if cdn != serverCDN {
+ return "", errors.New("cachegroup servers have different CDNs '" + cdn + "' and '" + serverCDN + "'")
+ }
+ }
+ if cdn == "" {
+ return "", errors.New("no edge or origin servers found on cachegroup " + strconv.FormatInt(cgID, 10))
+ }
+ return cdn, nil
+}
+
+// updateParams updated the header rewrite, cacheurl, and regex remap params for the given edge caches, on the given delivery services. NOTE it does not update Mid params.
+func updateParams(tx *sql.Tx, dsIDs []int64) error {
+ if err := updateDSParam(tx, dsIDs, "hdr_rw_", "edge_header_rewrite"); err != nil {
+ return err
+ }
+ if err := updateDSParam(tx, dsIDs, "cacheurl_", "cacheurl"); err != nil {
+ return err
+ }
+ if err := updateDSParam(tx, dsIDs, "regex_remap_", "regex_remap"); err != nil {
+ return err
+ }
+ return nil
+}
+
+func updateDSParam(tx *sql.Tx, dsIDs []int64, paramPrefix string, dsField string) error {
+ _, err := tx.Exec(`
+DELETE FROM parameter
+WHERE name = 'location'
+AND config_file IN (
+ SELECT CONCAT('`+paramPrefix+`', xml_id, '.config')
+ FROM deliveryservice as ds
+ WHERE ds.id = ANY($1)
+ AND (ds.`+dsField+` IS NULL OR ds.`+dsField+` = '')
+)
+`, pq.Array(dsIDs))
+ if err != nil {
+ return err
+ }
+
+ rows, err := tx.Query(`
+WITH ats_config_location AS (
+ SELECT TRIM(TRAILING '/' FROM value) as v FROM parameter WHERE name = 'location' AND config_file = 'remap.config'
+)
+INSERT INTO parameter (name, config_file, value) (
+ SELECT
+ 'location' as name,
+ CONCAT('`+paramPrefix+`', xml_id, '.config'),
+ (select v from ats_config_location)
+ FROM deliveryservice WHERE id = ANY($1)
+) ON CONFLICT (name, config_file, value) DO UPDATE SET id = EXCLUDED.id RETURNING id
+`, pq.Array(dsIDs))
+ if err != nil {
+ return errors.New("inserting parameters: " + err.Error())
+ }
+ ids := []int64{}
+ for rows.Next() {
+ id := int64(0)
+ if err := rows.Scan(&id); err != nil {
+ return errors.New("scanning inserted parameters: " + err.Error())
+ }
+ ids = append(ids, id)
+ }
+
+ _, err = tx.Exec(`
+INSERT INTO profile_parameter (parameter, profile) (
+ SELECT UNNEST($1::int[]), server.profile
+ FROM server
+ JOIN deliveryservice_server as dss ON dss.server = server.id
+ JOIN deliveryservice as ds ON ds.id = dss.deliveryservice
+ WHERE ds.id = ANY($2)
+) ON CONFLICT DO NOTHING
+`, pq.Array(ids), pq.Array(dsIDs))
+ if err != nil {
+ return errors.New("inserting profile parameters: " + err.Error())
+ }
+ return nil
+}
+
+func deleteConfigFile(tx *sql.Tx, configFile string) error {
+ _, err := tx.Exec(`DELETE FROM parameter WHERE name = 'location' AND config_file = $1`, configFile)
+ return err
+}
+
+func getDSTenants(tx *sql.Tx, dsIDs []int64) ([]int64, error) {
+ q := `
+SELECT COALESCE(tenant_id, 0) FROM deliveryservice
+WHERE deliveryservice.id = ANY($1)
+`
+ rows, err := tx.Query(q, pq.Array(dsIDs))
+ if err != nil {
+ return nil, errors.New("selecting delivery service tenants: " + err.Error())
+ }
+ defer rows.Close()
+ tenantIDs := []int64{}
+ for rows.Next() {
+ id := int64(0)
+ if err := rows.Scan(&id); err != nil {
+ return nil, errors.New("querying cachegroup delivery service tenants: " + err.Error())
+ }
+ tenantIDs = append(tenantIDs, id)
+ }
+ return tenantIDs, nil
+}
+
+// FinishTx commits the transaction if commit is true when it's called, otherwise it rolls back the transaction. This is designed to be called in a defer.
+func FinishTx(tx *sql.Tx, commit *bool) {
+ if tx == nil {
+ return
+ }
+ if !*commit {
+ tx.Rollback()
+ return
+ }
+ tx.Commit()
+}
diff --git a/traffic_ops/traffic_ops_golang/routes.go b/traffic_ops/traffic_ops_golang/routes.go
index 498f248..f49164e 100644
--- a/traffic_ops/traffic_ops_golang/routes.go
+++ b/traffic_ops/traffic_ops_golang/routes.go
@@ -109,6 +109,7 @@ func Routes(d ServerData) ([]Route, []RawRoute, http.Handler, error) {
{1.1, http.MethodDelete, `cachegroups/{id}$`, api.DeleteHandler(cachegroup.GetTypeSingleton()), auth.PrivLevelOperations, Authenticated, nil},
{1.1, http.MethodPost, `cachegroups/{id}/queue_update$`, cachegroup.QueueUpdates, auth.PrivLevelOperations, Authenticated, nil},
+ {1.1, http.MethodPost, `cachegroups/{id}/deliveryservices/?$`, cachegroup.DSPostHandler, auth.PrivLevelOperations, Authenticated, nil},
//CDN
{1.1, http.MethodGet, `cdns/name/{name}/sslkeys/?(\.json)?$`, cdn.GetSSLKeys, auth.PrivLevelAdmin, Authenticated, nil},