// CollectDBSize collect and persist the database size metric into the prometheus db
func CollectDBSize(gauge *prometheus.GaugeVec) error {
var dbConn *sql.DB
var err error
dbConn, err = util.GetConnection("clusteradmin")
if err != nil {
logit.Error.Println(err.Error())
}
defer dbConn.Close()
//var domain string
//domain, err = getDomain(dbConn)
//get all containers
var containers []types.Container
containers, err = admindb.GetAllContainers(dbConn)
if err != nil {
logit.Error.Println(err.Error())
}
//for each container, collect db size metrics
i := 0
var credential types.Credential
for i = range containers {
//logit.Info.Println("dbsize processing " + containers[i].Name)
credential, err = admindb.GetUserCredentials(dbConn, &containers[i])
if err != nil {
logit.Error.Println(err.Error())
}
err = process(&containers[i], &credential, gauge)
if err != nil {
logit.Error.Println(err.Error())
}
i++
}
return nil
}
// Collecthc perform a health check, this will persist metrics
func Collecthc() error {
var err error
logit.Info.Println("Collecthc called")
var dbConn *sql.DB
dbConn, err = util.GetConnection(CLUSTERADMIN_DB)
if err != nil {
logit.Error.Println(err.Error())
}
defer dbConn.Close()
//get all containers
var containers []types.Container
containers, err = admindb.GetAllContainers(dbConn)
if err != nil {
logit.Error.Println(err.Error())
}
//for each container, do a health check
i := 0
var credential types.Credential
var checks []types.HealthCheck
checks = make([]types.HealthCheck, 0)
var status string
for i = range containers {
hc := types.HealthCheck{}
hc.ProjectID = containers[i].ProjectID
hc.ProjectName = containers[i].ProjectName
hc.ContainerName = containers[i].Name
hc.ContainerID = containers[i].ID
hc.ContainerRole = containers[i].Role
hc.ContainerImage = containers[i].Image
credential, err = admindb.GetUserCredentials(dbConn, &containers[i])
if err != nil {
logit.Error.Println(err.Error())
} else {
status, err = ping(&credential)
hc.Status = status
checks = append(checks, hc)
}
i++
}
//delete current health checks
err = admindb.DeleteHealthCheck(dbConn)
if err != nil {
logit.Error.Println(err.Error())
return err
}
//persist health checks
i = 0
for i = range checks {
_, err = admindb.InsertHealthCheck(dbConn, checks[i])
if err != nil {
logit.Error.Println(err.Error())
}
i++
}
return nil
}
// UpdateContainerUser updates a database users preferences on a given container db
func UpdateContainerUser(w rest.ResponseWriter, r *rest.Request) {
dbConn, err := util.GetConnection(CLUSTERADMIN_DB)
if err != nil {
logit.Error.Println(err.Error())
rest.Error(w, err.Error(), 400)
return
}
defer dbConn.Close()
postMsg := types.NodeUser{}
err = r.DecodeJsonPayload(&postMsg)
if err != nil {
logit.Error.Println(err.Error())
rest.Error(w, err.Error(), http.StatusInternalServerError)
return
}
err = secimpl.Authorize(dbConn, postMsg.Token, "perm-user")
if err != nil {
logit.Error.Println(err.Error())
rest.Error(w, err.Error(), http.StatusUnauthorized)
return
}
if postMsg.ID == "" {
logit.Error.Println("UpdateContainerUser: error node ID required")
rest.Error(w, "ID required", 400)
return
}
if postMsg.Rolname == "" {
logit.Error.Println("UpdateContainerUser: error node Rolname required")
rest.Error(w, "Rolname required", 400)
return
}
//create user on the container
//get container info
var node types.Container
node, err = admindb.GetContainer(dbConn, postMsg.ID)
if err != nil {
logit.Error.Println(err.Error())
rest.Error(w, err.Error(), http.StatusBadRequest)
return
}
if postMsg.Passwd == "" {
} else {
//update the password
}
var credential types.Credential
credential, err = admindb.GetUserCredentials(dbConn, &node)
if err != nil {
logit.Error.Println(err.Error())
rest.Error(w, err.Error(), http.StatusBadRequest)
return
}
var dbConn2 *sql.DB
dbConn2, err = util.GetMonitoringConnection(credential.Host,
credential.Username,
credential.Port, credential.Database, credential.Password)
defer dbConn2.Close()
var SUPERUSER = "******"
var INHERIT = "INHERIT"
var CREATEROLE = "CREATEROLE"
var CREATEDB = "CREATEDB"
var LOGIN = "******"
var REPLICATION = "REPLICATION"
logit.Info.Println("Rolsuper is " + strconv.FormatBool(postMsg.Rolsuper))
if !postMsg.Rolsuper {
SUPERUSER = "******"
}
if !postMsg.Rolinherit {
INHERIT = "NOINHERIT"
}
if !postMsg.Rolcreaterole {
CREATEROLE = "NOCREATEROLE"
}
if !postMsg.Rolcreatedb {
CREATEDB = "NOCREATEDB"
}
if !postMsg.Rollogin {
LOGIN = "******"
}
if !postMsg.Rolreplication {
REPLICATION = "NOREPLICATION"
}
query := "alter user " + postMsg.Rolname + " " +
SUPERUSER + " " +
INHERIT + " " +
CREATEROLE + " " +
CREATEDB + " " +
LOGIN + " " +
REPLICATION + " "
if postMsg.Passwd != "" {
query = query + " PASSWORD '" + postMsg.Passwd + "'"
}
logit.Info.Println(query)
_, err = dbConn2.Query(query)
if err != nil {
logit.Error.Println(err.Error())
rest.Error(w, err.Error(), http.StatusBadRequest)
return
}
var userexists = true
_, err = admindb.GetContainerUser(dbConn, node.Name, postMsg.Rolname)
if err == sql.ErrNoRows {
// Handle no rows
userexists = false
} else if err != nil {
// Handle actual error
logit.Error.Println(err.Error())
rest.Error(w, err.Error(), 400)
return
}
if postMsg.Passwd != "" {
//update user's password
dbuser := types.ContainerUser{}
dbuser.Containername = node.Name
dbuser.Passwd = postMsg.Passwd
dbuser.Rolname = postMsg.Rolname
if userexists {
err = admindb.UpdateContainerUser(dbConn, dbuser)
if err != nil {
logit.Error.Println(err.Error())
rest.Error(w, err.Error(), 400)
return
}
}
}
w.WriteHeader(http.StatusOK)
status := types.SimpleStatus{}
status.Status = "OK"
w.WriteJson(&status)
}
// GetAllusersForContainer returns a list of all database users on a given db container
func GetAllUsersForContainer(w rest.ResponseWriter, r *rest.Request) {
dbConn, err := util.GetConnection(CLUSTERADMIN_DB)
if err != nil {
logit.Error.Println(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(err.Error())
rest.Error(w, err.Error(), http.StatusUnauthorized)
return
}
ID := r.PathParam("ID")
if ID == "" {
rest.Error(w, "ID required", 400)
return
}
//get container info
var node types.Container
node, err = admindb.GetContainer(dbConn, ID)
if err != nil {
logit.Error.Println(err.Error())
rest.Error(w, err.Error(), http.StatusBadRequest)
return
}
var credential types.Credential
credential, err = admindb.GetUserCredentials(dbConn, &node)
if err != nil {
logit.Error.Println(err.Error())
rest.Error(w, err.Error(), http.StatusBadRequest)
return
}
var dbConn2 *sql.DB
dbConn2, err = util.GetMonitoringConnection(credential.Host,
credential.Username,
credential.Port, credential.Database, credential.Password)
defer dbConn2.Close()
users := make([]types.ContainerUser, 0)
//query results
var rows *sql.Rows
rows, err = dbConn2.Query("select rolname::text, rolsuper::text, rolinherit::text, rolcreaterole::text, rolcreatedb::text, rolcanlogin::text, rolreplication::text from pg_roles order by rolname")
if err != nil {
logit.Error.Println(err.Error())
rest.Error(w, err.Error(), http.StatusBadRequest)
return
}
defer rows.Close()
for rows.Next() {
user := types.ContainerUser{}
if err = rows.Scan(
&user.Rolname,
&user.Rolsuper,
&user.Rolinherit,
&user.Rolcreaterole,
&user.Rolcreatedb,
&user.Rolcanlogin,
&user.Rolreplication,
); err != nil {
logit.Error.Println(err.Error())
rest.Error(w, err.Error(), http.StatusBadRequest)
return
}
user.Containername = node.Name
user.ContainerID = node.ID
users = append(users, user)
}
if err = rows.Err(); err != nil {
logit.Error.Println(err.Error())
rest.Error(w, err.Error(), http.StatusBadRequest)
return
}
w.WriteHeader(http.StatusOK)
w.WriteJson(&users)
}
// AddContainerUser creates a new database user for a given container
func AddContainerUser(w rest.ResponseWriter, r *rest.Request) {
postMsg := types.NodeUser{}
err := r.DecodeJsonPayload(&postMsg)
if err != nil {
logit.Error.Println(err.Error())
rest.Error(w, err.Error(), http.StatusInternalServerError)
return
}
var dbConn *sql.DB
dbConn, err = util.GetConnection(CLUSTERADMIN_DB)
if err != nil {
logit.Error.Println(err.Error())
rest.Error(w, err.Error(), 400)
return
}
defer dbConn.Close()
err = secimpl.Authorize(dbConn, postMsg.Token, "perm-user")
if err != nil {
logit.Error.Println(err.Error())
rest.Error(w, err.Error(), http.StatusUnauthorized)
return
}
if postMsg.ID == "" {
logit.Error.Println("AddContainerUser: error node ID required")
rest.Error(w, "ID required", 400)
return
}
if postMsg.Rolname == "" {
logit.Error.Println("AddContainerUser: error node Rolname required")
rest.Error(w, "Rolname required", 400)
return
}
if postMsg.Passwd == "" {
logit.Error.Println("AddContainerUser: error node Passwd required")
rest.Error(w, "Passwd required", 400)
return
}
//create user on the container
//get container info
node, err := admindb.GetContainer(dbConn, postMsg.ID)
if err != nil {
logit.Error.Println(err.Error())
rest.Error(w, err.Error(), http.StatusBadRequest)
return
}
var credential types.Credential
credential, err = admindb.GetUserCredentials(dbConn, &node)
if err != nil {
logit.Error.Println(err.Error())
rest.Error(w, err.Error(), http.StatusBadRequest)
return
}
var dbConn2 *sql.DB
dbConn2, err = util.GetMonitoringConnection(credential.Host,
credential.Username,
credential.Port, credential.Database, credential.Password)
defer dbConn2.Close()
var SUPERUSER = ""
var INHERIT = ""
var CREATEROLE = ""
var CREATEDB = ""
var LOGIN = ""
var REPLICATION = ""
//logit.Info.Println("Rolsuper is " + strconv.FormatBool(postMsg.Rolsuper))
if postMsg.Rolsuper {
SUPERUSER = "******"
}
if postMsg.Rolinherit {
INHERIT = "INHERIT"
}
if postMsg.Rolcreaterole {
CREATEROLE = "CREATEROLE"
}
if postMsg.Rolcreatedb {
CREATEDB = "CREATEDB"
}
if postMsg.Rollogin {
LOGIN = "******"
}
if postMsg.Rolreplication {
REPLICATION = "REPLICATION"
}
query := "create user " + postMsg.Rolname + " " +
SUPERUSER + " " +
INHERIT + " " +
CREATEROLE + " " +
CREATEDB + " " +
LOGIN + " " +
REPLICATION + " " +
"PASSWORD '" + postMsg.Passwd + "'"
logit.Info.Println(query)
_, err = dbConn2.Query(query)
if err != nil {
logit.Error.Println(err.Error())
rest.Error(w, err.Error(), http.StatusBadRequest)
return
}
//create user in the admin db
dbuser := types.ContainerUser{}
dbuser.Containername = node.Name
dbuser.Passwd = postMsg.Passwd
dbuser.Rolname = postMsg.Rolname
result, err := admindb.AddContainerUser(dbConn, dbuser)
if err != nil {
logit.Error.Println(err.Error())
rest.Error(w, err.Error(), 400)
return
}
logit.Info.Printf("AddContainerUser: new ID %d\n", result)
w.WriteHeader(http.StatusOK)
status := types.SimpleStatus{}
status.Status = "OK"
w.WriteJson(&status)
}
// GetContainerUser returns a database user for a given container
func GetContainerUser(w rest.ResponseWriter, r *rest.Request) {
dbConn, err := util.GetConnection(CLUSTERADMIN_DB)
if err != nil {
logit.Error.Println(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(err.Error())
rest.Error(w, err.Error(), http.StatusUnauthorized)
return
}
ContainerID := r.PathParam("ContainerID")
if ContainerID == "" {
rest.Error(w, "ContainerID required", 400)
return
}
Rolname := r.PathParam("Rolname")
if Rolname == "" {
rest.Error(w, "Rolname required", 400)
return
}
//get container info
node, err := admindb.GetContainer(dbConn, ContainerID)
if err != nil {
logit.Error.Println(err.Error())
rest.Error(w, err.Error(), http.StatusBadRequest)
return
}
var credential types.Credential
credential, err = admindb.GetUserCredentials(dbConn, &node)
if err != nil {
logit.Error.Println(err.Error())
rest.Error(w, err.Error(), http.StatusBadRequest)
return
}
var dbConn2 *sql.DB
dbConn2, err = util.GetMonitoringConnection(credential.Host,
credential.Username,
credential.Port, credential.Database, credential.Password)
defer dbConn2.Close()
query := "select rolname::text, rolsuper::text, rolinherit::text, rolcreaterole::text, rolcreatedb::text, rolcanlogin::text, rolreplication::text from pg_roles where rolname = '" + Rolname + "' order by rolname"
logit.Info.Println(query)
nodeuser := types.ContainerUser{}
err = dbConn2.QueryRow(query).Scan(
&nodeuser.Rolname,
&nodeuser.Rolsuper,
&nodeuser.Rolinherit,
&nodeuser.Rolcreaterole,
&nodeuser.Rolcreatedb,
&nodeuser.Rolcanlogin,
&nodeuser.Rolreplication)
if err != nil {
logit.Error.Println(err.Error())
rest.Error(w, err.Error(), http.StatusBadRequest)
return
}
w.WriteJson(&nodeuser)
}
// DeleteContainerUser deletes a database user on a given container
func DeleteContainerUser(w rest.ResponseWriter, r *rest.Request) {
dbConn, err := util.GetConnection(CLUSTERADMIN_DB)
if err != nil {
logit.Error.Println(err.Error())
rest.Error(w, err.Error(), 400)
return
}
defer dbConn.Close()
err = secimpl.Authorize(dbConn, r.PathParam("Token"), "perm-backup")
if err != nil {
logit.Error.Println(err.Error())
rest.Error(w, err.Error(), http.StatusUnauthorized)
return
}
ContainerID := r.PathParam("ContainerID")
if ContainerID == "" {
rest.Error(w, "ContainerID required", 400)
return
}
rolname := r.PathParam("Rolname")
if rolname == "" {
rest.Error(w, "Rolname required", 400)
return
}
//get node info
node, err := admindb.GetContainer(dbConn, ContainerID)
if err != nil {
logit.Error.Println(err.Error())
rest.Error(w, err.Error(), http.StatusBadRequest)
return
}
var userexists = true
_, err = admindb.GetContainerUser(dbConn, node.Name, rolname)
if err == sql.ErrNoRows {
// Handle no rows
userexists = false
} else if err != nil {
// Handle actual error
logit.Error.Println(err.Error())
rest.Error(w, err.Error(), 400)
return
}
//only delete if there is a container user
if userexists {
err = admindb.DeleteContainerUser(dbConn, node.Name, rolname)
if err != nil {
logit.Error.Println(err.Error())
rest.Error(w, err.Error(), 400)
return
}
}
var credential types.Credential
credential, err = admindb.GetUserCredentials(dbConn, &node)
if err != nil {
logit.Error.Println(err.Error())
rest.Error(w, err.Error(), http.StatusBadRequest)
return
}
var dbConn2 *sql.DB
dbConn2, err = util.GetMonitoringConnection(credential.Host,
credential.Username,
credential.Port, credential.Database, credential.Password)
defer dbConn2.Close()
query := "drop role " + rolname
logit.Info.Println(query)
_, err = dbConn2.Query(query)
if err != nil {
logit.Error.Println(err.Error())
rest.Error(w, err.Error(), http.StatusBadRequest)
return
}
w.WriteHeader(http.StatusOK)
status := types.SimpleStatus{}
status.Status = "OK"
w.WriteJson(&status)
}