func GetAllNodesForCluster(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("GetAllForCluster: validate token error " + err.Error())
rest.Error(w, err.Error(), http.StatusUnauthorized)
return
}
ClusterID := r.PathParam("ClusterID")
if ClusterID == "" {
logit.Error.Println("GetAllNodesForCluster: node ClusterID required")
rest.Error(w, "node ClusterID required", http.StatusBadRequest)
return
}
results, err := admindb.GetAllContainersForCluster(dbConn, ClusterID)
if err != nil {
logit.Error.Println("GetAllNodesForCluster:" + err.Error())
rest.Error(w, err.Error(), http.StatusBadRequest)
}
nodes := make([]ClusterNode, len(results))
i := 0
for i = range results {
nodes[i].ID = results[i].ID
nodes[i].Name = results[i].Name
nodes[i].ClusterID = results[i].ClusterID
nodes[i].ServerID = results[i].ServerID
nodes[i].Role = results[i].Role
nodes[i].Image = results[i].Image
nodes[i].CreateDate = results[i].CreateDate
nodes[i].ProjectID = results[i].ProjectID
nodes[i].ProjectName = results[i].ProjectName
nodes[i].ServerName = results[i].ServerName
nodes[i].ClusterName = results[i].ClusterName
//nodes[i].Status = "UNKNOWN"
i++
}
w.WriteJson(&nodes)
}
//
// getMasterValues returns a master node, pgpool node, and list of standby nodes
//
func getMasterValues(dbConn *sql.DB, clusterID string, domainname string) (admindb.Container, admindb.Container, []string, error) {
master := admindb.Container{}
pgpool := admindb.Container{}
//we pass in a list of containers in this cluster
//that will be added to the pg_hba.conf of the master
//for allowing replication
nodes, err1 := admindb.GetAllContainersForCluster(dbConn, clusterID)
if err1 != nil {
return master, pgpool, make([]string, 1), err1
}
masterFound := false
pgpoolFound := false
//nodelist := ""
i := 0
nodeslice := make([]string, 10, 10)
var nodecount = 0
for i = range nodes {
if nodes[i].Role == "master" {
master = nodes[i]
masterFound = true
nodeslice[nodecount] = nodes[i].Name + "." + domainname
nodecount++
} else if nodes[i].Role == "pgpool" {
pgpool = nodes[i]
pgpoolFound = true
} else if nodes[i].Role == "standby" {
nodeslice[nodecount] = nodes[i].Name + "." + domainname
nodecount++
}
i++
}
if masterFound == false {
return master, pgpool, make([]string, 1), errors.New("no master found in this cluster")
}
if pgpoolFound == false {
return master, pgpool, make([]string, 1), errors.New("no pgpool found in this cluster")
}
nodelist := make([]string, nodecount, nodecount)
copy(nodelist, nodeslice)
return master, pgpool, nodelist, nil
}
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)
}
