func GetCluster(w rest.ResponseWriter, r *rest.Request) {
dbConn, err := util.GetConnection(CLUSTERADMIN_DB)
if err != nil {
logit.Error.Println("BackupNow: error " + err.Error())
rest.Error(w, err.Error(), 400)
return
}
defer dbConn.Close()
err = secimpl.Authorize(dbConn, r.PathParam("Token"), "perm-read")
if err != nil {
logit.Error.Println("GetCluster: authorize error " + err.Error())
rest.Error(w, err.Error(), http.StatusUnauthorized)
return
}
ID := r.PathParam("ID")
results, err := admindb.GetCluster(dbConn, ID)
if err != nil {
logit.Error.Println("GetCluster:" + err.Error())
rest.Error(w, err.Error(), http.StatusBadRequest)
}
cluster := Cluster{results.ID, results.ProjectID, results.Name, results.ClusterType,
results.Status, results.CreateDate, "", results.Containers}
logit.Info.Println("GetCluser:db call results=" + results.ID)
w.WriteJson(&cluster)
}
func ConfigureCluster(w rest.ResponseWriter, r *rest.Request) {
dbConn, err := util.GetConnection(CLUSTERADMIN_DB)
if err != nil {
logit.Error.Println("BackupNow: error " + err.Error())
rest.Error(w, err.Error(), 400)
return
}
defer dbConn.Close()
err = secimpl.Authorize(dbConn, r.PathParam("Token"), "perm-cluster")
if err != nil {
logit.Error.Println("ConfigureCluster: authorize error " + err.Error())
rest.Error(w, err.Error(), http.StatusUnauthorized)
return
}
ID := r.PathParam("ID")
cluster, err := admindb.GetCluster(dbConn, ID)
if err != nil {
logit.Error.Println("ConfigureCluster:" + err.Error())
rest.Error(w, err.Error(), http.StatusBadRequest)
return
}
err = configureCluster(dbConn, cluster, false)
if err != nil {
logit.Error.Println("ConfigureCluster:" + err.Error())
rest.Error(w, err.Error(), http.StatusBadRequest)
return
}
w.WriteHeader(http.StatusOK)
status := SimpleStatus{}
status.Status = "OK"
w.WriteJson(&status)
}
func AdminFailover(w rest.ResponseWriter, r *rest.Request) {
dbConn, err := util.GetConnection(CLUSTERADMIN_DB)
if err != nil {
logit.Error.Println("BackupNow: error " + err.Error())
rest.Error(w, err.Error(), 400)
return
}
defer dbConn.Close()
err = secimpl.Authorize(dbConn, r.PathParam("Token"), "perm-cluster")
if err != nil {
logit.Error.Println("AdminFailover: authorize error " + err.Error())
rest.Error(w, err.Error(), http.StatusUnauthorized)
return
}
ID := r.PathParam("ID")
if ID == "" {
logit.Error.Println("AdminFailover: node ID required error")
rest.Error(w, "node ID required", http.StatusBadRequest)
return
}
//dbNode is the standby node we are going to fail over and
//make the new master in the cluster
var dbNode admindb.Container
dbNode, err = admindb.GetContainer(dbConn, ID)
if err != nil {
logit.Error.Println("AdminFailover:" + err.Error())
rest.Error(w, err.Error(), http.StatusBadRequest)
return
}
cluster, err := admindb.GetCluster(dbConn, dbNode.ClusterID)
if err != nil {
logit.Error.Println("AdminFailover:" + err.Error())
rest.Error(w, err.Error(), http.StatusBadRequest)
return
}
var failoverResp cpmcontainerapi.FailoverResponse
failoverResp, err = cpmcontainerapi.FailoverClient(dbNode.Name)
if err != nil {
logit.Error.Println("AdminFailover: fail-over error " + err.Error())
rest.Error(w, err.Error(), http.StatusBadRequest)
return
}
logit.Info.Println("AdminFailover: fail-over output " + failoverResp.Output)
//update the old master to standalone role
oldMaster := admindb.Container{}
oldMaster, err = admindb.GetContainerMaster(dbConn, dbNode.ClusterID)
if err != nil {
logit.Error.Println("AdminFailover:" + err.Error())
rest.Error(w, err.Error(), http.StatusBadRequest)
return
}
oldMaster.Role = "standalone"
oldMaster.ClusterID = "-1"
err = admindb.UpdateContainer(dbConn, oldMaster)
if err != nil {
logit.Error.Println("AdminFailover:" + err.Error())
rest.Error(w, err.Error(), http.StatusBadRequest)
return
}
//update the failover node to master role
dbNode.Role = "master"
err = admindb.UpdateContainer(dbConn, dbNode)
if err != nil {
logit.Error.Println("AdminFailover:" + err.Error())
rest.Error(w, err.Error(), http.StatusBadRequest)
return
}
//stop pg on the old master
//params.IPAddress1 = oldMaster.IPAddress
var stopPGResp cpmcontainerapi.StopPGResponse
stopPGResp, err = cpmcontainerapi.StopPGClient(oldMaster.Name)
if err != nil {
logit.Error.Println("AdminFailover: " + err.Error() + stopPGResp.Output)
rest.Error(w, err.Error(), http.StatusBadRequest)
return
}
err = configureCluster(dbConn, cluster, false)
if err != nil {
logit.Error.Println(err.Error())
rest.Error(w, err.Error(), http.StatusBadRequest)
return
}
w.WriteHeader(http.StatusOK)
status := SimpleStatus{}
status.Status = "OK"
w.WriteJson(&status)
return
}
func DeleteCluster(w rest.ResponseWriter, r *rest.Request) {
dbConn, err := util.GetConnection(CLUSTERADMIN_DB)
if err != nil {
logit.Error.Println("BackupNow: error " + err.Error())
rest.Error(w, err.Error(), 400)
return
}
defer dbConn.Close()
err = secimpl.Authorize(dbConn, r.PathParam("Token"), "perm-cluster")
if err != nil {
logit.Error.Println("DeleteCluster: authorize error " + err.Error())
rest.Error(w, err.Error(), http.StatusUnauthorized)
return
}
ID := r.PathParam("ID")
if ID == "" {
logit.Error.Println("DeleteCluster: error cluster ID required")
rest.Error(w, "cluster ID required", http.StatusBadRequest)
return
}
cluster, err := admindb.GetCluster(dbConn, ID)
if err != nil {
logit.Error.Println("DeleteCluster:" + err.Error())
rest.Error(w, err.Error(), http.StatusBadRequest)
}
//delete docker containers
containers, err := admindb.GetAllContainersForCluster(dbConn, cluster.ID)
if err != nil {
logit.Error.Println("DeleteCluster:" + err.Error())
rest.Error(w, err.Error(), http.StatusBadRequest)
}
i := 0
i = 0
server := admindb.Server{}
for i = range containers {
//go get the docker server IPAddress
server, err = admindb.GetServer(dbConn, containers[i].ServerID)
if err != nil {
logit.Error.Println("DeleteCluster:" + err.Error())
rest.Error(w, err.Error(), http.StatusBadRequest)
return
}
logit.Info.Println("DeleteCluster: got server IP " + server.IPAddress)
//it is possible that someone can remove a container
//outside of us, so we let it pass that we can't remove
//it
//err = removeContainer(server.IPAddress, containers[i].Name)
dremreq := &cpmserverapi.DockerRemoveRequest{}
dremreq.ContainerName = containers[i].Name
logit.Info.Println("will attempt to delete container " + dremreq.ContainerName)
var url = "http://" + server.IPAddress + ":10001"
_, err = cpmserverapi.DockerRemoveClient(url, dremreq)
if err != nil {
logit.Error.Println("DeleteCluster: error when trying to remove container" + err.Error())
}
//send the server a deletevolume command
url = "http://" + server.IPAddress + ":10001"
ddreq := &cpmserverapi.DiskDeleteRequest{}
ddreq.Path = server.PGDataPath + "/" + containers[i].Name
_, err = cpmserverapi.DiskDeleteClient(url, ddreq)
if err != nil {
logit.Error.Println("DeleteCluster: error when trying to remove disk volume" + err.Error())
}
i++
}
//delete the container entries
//delete the cluster entry
admindb.DeleteCluster(dbConn, ID)
for i = range containers {
err = admindb.DeleteContainer(dbConn, containers[i].ID)
if err != nil {
logit.Error.Println("DeleteCluster:" + err.Error())
rest.Error(w, err.Error(), http.StatusBadRequest)
return
}
}
status := SimpleStatus{}
status.Status = "OK"
w.WriteHeader(http.StatusOK)
w.WriteJson(&status)
}
func ScaleUpCluster(w rest.ResponseWriter, r *rest.Request) {
dbConn, err := util.GetConnection(CLUSTERADMIN_DB)
if err != nil {
logit.Error.Println("BackupNow: error " + err.Error())
rest.Error(w, err.Error(), 400)
return
}
defer dbConn.Close()
err = secimpl.Authorize(dbConn, r.PathParam("Token"), "perm-read")
if err != nil {
logit.Error.Println("GetCluster: authorize error " + err.Error())
rest.Error(w, err.Error(), http.StatusUnauthorized)
return
}
ID := r.PathParam("ID")
cluster, err := admindb.GetCluster(dbConn, ID)
if err != nil {
logit.Error.Println(err.Error())
rest.Error(w, err.Error(), http.StatusBadRequest)
return
}
var containers []admindb.Container
containers, err = admindb.GetAllContainersForCluster(dbConn, ID)
if err != nil {
logit.Error.Println(err.Error())
rest.Error(w, err.Error(), http.StatusBadRequest)
return
}
//determine number of standby nodes currently
standbyCnt := 0
for i := range containers {
if containers[i].Role == STANDBY {
standbyCnt++
}
}
logit.Info.Printf("standbyCnt ends at %d\n", standbyCnt)
//provision new container
params := new(cpmserverapi.DockerRunRequest)
params.Image = CPM_NODE_IMAGE
//TODO make the server choice smart
params.ServerID = containers[0].ServerID
params.ProjectID = cluster.ProjectID
params.ContainerName = cluster.Name + "-" + STANDBY + "-" + fmt.Sprintf("%d", standbyCnt)
params.Standalone = "false"
var standby = true
var PROFILE = "LG"
logit.Info.Printf("here with ProjectID %s\n", cluster.ProjectID)
err = provisionImpl(dbConn, params, PROFILE, standby)
if err != nil {
logit.Error.Println(err.Error())
rest.Error(w, err.Error(), http.StatusBadRequest)
return
}
err = provisionImplInit(dbConn, params, PROFILE, false)
if err != nil {
logit.Error.Println(err.Error())
rest.Error(w, err.Error(), http.StatusBadRequest)
return
}
//need to update the new container's ClusterID
var node admindb.Container
node, err = admindb.GetContainerByName(dbConn, params.ContainerName)
if err != nil {
logit.Error.Println(err.Error())
rest.Error(w, "error"+err.Error(), http.StatusBadRequest)
return
}
node.ClusterID = cluster.ID
node.Role = STANDBY
err = admindb.UpdateContainer(dbConn, node)
if err != nil {
logit.Error.Println(err.Error())
rest.Error(w, "error"+err.Error(), http.StatusBadRequest)
return
}
err = configureCluster(dbConn, cluster, false)
if err != nil {
logit.Error.Println(err.Error())
rest.Error(w, err.Error(), http.StatusBadRequest)
return
}
w.WriteHeader(http.StatusOK)
status := SimpleStatus{}
status.Status = "OK"
w.WriteJson(&status)
}
