monfront - show groups
This is the first step to view the group status. The templates were split into multipe parts, to make reuse easier.
This commit is contained in:
parent
887e8ea089
commit
c646179fa9
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@ -19,6 +19,7 @@ import (
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var (
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configPath = flag.String("config", "monfront.conf", "path to the config file")
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DB *sql.DB
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Tmpl *template.Template
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)
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type (
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@ -28,8 +29,10 @@ type (
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}
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Context struct {
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Title string
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Mappings map[int]map[int]MapEntry
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Checks []check
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Groups []group
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}
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MapEntry struct {
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@ -38,6 +41,7 @@ type (
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}
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check struct {
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NodeId int
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NodeName string
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CommandName string
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CheckID int64
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@ -48,6 +52,15 @@ type (
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NextTime time.Time
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Msg string
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}
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group struct {
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GroupId int
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Name string
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NodeId int
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NodeName string
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State int
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MappingId int
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}
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)
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func main() {
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@ -68,11 +81,21 @@ func main() {
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}
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DB = db
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tmpl := template.New("main")
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tmpl.Funcs(Funcs)
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for k, val := range Templates {
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template.Must(tmpl.New(k).Parse(val))
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}
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Tmpl = tmpl
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http.HandleFunc("/", showChecks)
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http.HandleFunc("/checks", showChecks)
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http.HandleFunc("/hosts", showHosts)
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http.HandleFunc("/groups", showGroups)
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http.HandleFunc("/action", checkAction)
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http.HandleFunc("/unhandled/checks", showChecks)
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http.HandleFunc("/unhandled/hosts", showUnhandledHosts)
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http.HandleFunc("/unhandled/groups", showUnhandledGroups)
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http.HandleFunc("/unhandled/hosts", showHosts)
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http.HandleFunc("/unhandled/groups", showGroups)
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http.ListenAndServe(config.Listen, nil)
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}
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@ -161,11 +184,38 @@ func checkAction(w http.ResponseWriter, r *http.Request) {
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}
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func showChecks(w http.ResponseWriter, r *http.Request) {
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query := SQLShowChecks
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query := `select c.id, n.id, n.name, co.name, ac.mapping_id, ac.states[1] as state,
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ac.enabled, ac.notice, ac.next_time, ac.msg
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from active_checks ac
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join checks c on ac.check_id = c.id
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join nodes n on c.node_id = n.id
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join commands co on c.command_id = co.id`
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where := []string{}
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if strings.HasPrefix(r.URL.Path, "/unhandled") {
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query = SQLShowUnhandledChecks
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where = append(where, `ac.states[1] > 0`)
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}
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rows, err := DB.Query(query)
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idx := 0
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params := []interface{}{}
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if id, found := r.URL.Query()["node_id"]; found {
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idx += 1
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where = append(where, fmt.Sprintf("n.id = $%d::int", idx))
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params = append(params, id[0])
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}
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if id, found := r.URL.Query()["command_id"]; found {
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idx += 1
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where = append(where, fmt.Sprintf("co.id = $%d::int", idx))
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params = append(params, id[0])
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}
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if id, found := r.URL.Query()["check_id"]; found {
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idx += 1
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where = append(where, fmt.Sprintf("c.id = $%d::int", idx))
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params = append(params, id[0])
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}
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if len(where) > 0 {
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query += " where " + strings.Join(where, " and ")
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}
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query += ` order by n.name, co.name`
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rows, err := DB.Query(query, params...)
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if err != nil {
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w.WriteHeader(http.StatusInternalServerError)
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w.Write([]byte("problems with the database"))
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@ -176,7 +226,7 @@ func showChecks(w http.ResponseWriter, r *http.Request) {
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checks := []check{}
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for rows.Next() {
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c := check{}
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err := rows.Scan(&c.CheckID, &c.NodeName, &c.CommandName, &c.MappingId, &c.State, &c.Enabled, &c.Notice, &c.NextTime, &c.Msg)
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err := rows.Scan(&c.CheckID, &c.NodeId, &c.NodeName, &c.CommandName, &c.MappingId, &c.State, &c.Enabled, &c.Notice, &c.NextTime, &c.Msg)
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if err != nil {
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w.WriteHeader(http.StatusInternalServerError)
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w.Write([]byte("problems with the database"))
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@ -185,15 +235,6 @@ func showChecks(w http.ResponseWriter, r *http.Request) {
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}
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checks = append(checks, c)
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}
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tmpl := template.New("checklist")
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tmpl.Funcs(Funcs)
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tmpl, err = tmpl.Parse(TmplCheckList)
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if err != nil {
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w.WriteHeader(http.StatusInternalServerError)
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w.Write([]byte("problems with a template"))
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log.Printf("could not parse template: %s", err)
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return
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}
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con := Context{
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Checks: checks,
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}
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@ -204,7 +245,7 @@ func showChecks(w http.ResponseWriter, r *http.Request) {
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return
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}
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w.Header()["Content-Type"] = []string{"text/html"}
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if err := tmpl.Execute(w, con); err != nil {
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if err := Tmpl.ExecuteTemplate(w, "checklist", con); err != nil {
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w.WriteHeader(http.StatusInternalServerError)
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w.Write([]byte("problem with a template"))
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log.Printf("could not execute template: %s", err)
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@ -213,11 +254,26 @@ func showChecks(w http.ResponseWriter, r *http.Request) {
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return
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}
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func showUnhandledHosts(w http.ResponseWriter, r *http.Request) {
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func showHosts(w http.ResponseWriter, r *http.Request) {
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}
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func showUnhandledGroups(w http.ResponseWriter, r *http.Request) {
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rows, err := DB.Query(SQLShowUnhandledGroups)
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func showGroups(w http.ResponseWriter, r *http.Request) {
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query := `select groupid, groupname, nodeid, nodename, mapping_id, state
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from (
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select g.id groupid, g.name groupname, n.id nodeid, n.name nodename, ac.mapping_id,
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ac.states[1] state, max(ac.states[1]) over (partition by c.node_id) maxstate
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from groups g
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join nodes_groups ng on g.id = ng.group_id
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join nodes n on ng.node_id = n.id
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join checks c on n.id = c.node_id
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join active_checks ac on c.id = ac.check_id
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join mapping_level ml on ac.mapping_id = ml.mapping_id and ac.states[1] = ml.target
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) s
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where state = maxstate`
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if strings.HasPrefix(r.URL.Path, "/unhandled") {
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query += ` and state > 0`
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}
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rows, err := DB.Query(query)
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if err != nil {
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w.WriteHeader(http.StatusInternalServerError)
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w.Write([]byte("problems with the database"))
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@ -225,32 +281,29 @@ func showUnhandledGroups(w http.ResponseWriter, r *http.Request) {
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return
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}
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type check struct {
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GroupName string
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NodeName string
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State int
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}
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checks := []check{}
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groups := []group{}
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for rows.Next() {
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c := check{}
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err := rows.Scan(&c.GroupName, &c.NodeName, &c.State)
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g := group{}
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err := rows.Scan(&g.GroupId, &g.Name, &g.NodeId, &g.NodeName, &g.MappingId, &g.State)
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if err != nil {
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w.WriteHeader(http.StatusInternalServerError)
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w.Write([]byte("problems with the database"))
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log.Printf("could not get check list: %s", err)
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return
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}
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checks = append(checks, c)
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groups = append(groups, g)
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}
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tmpl, err := template.New("checklist").Parse(TmplUnhandledGroups)
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if err != nil {
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con := Context{
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Groups: groups,
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}
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if err := loadMappings(&con); err != nil {
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w.WriteHeader(http.StatusInternalServerError)
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w.Write([]byte("problems with a template"))
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log.Printf("could not parse template: %s", err)
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w.Write([]byte("problem with the mappings"))
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log.Printf("could not load mappings: %s", err)
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return
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}
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w.Header()["Content-Type"] = []string{"text/html"}
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if err := tmpl.Execute(w, checks); err != nil {
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if err := Tmpl.ExecuteTemplate(w, "grouplist", con); err != nil {
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w.WriteHeader(http.StatusInternalServerError)
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w.Write([]byte("problem with a template"))
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log.Printf("could not execute template: %s", err)
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@ -292,36 +345,14 @@ func loadMappings(c *Context) error {
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var (
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SQLShowMappings = `select mapping_id, target, title, color
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from mapping_level`
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SQLShowChecks = `select c.id, n.name, co.name, ac.mapping_id, ac.states[1] as state,
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ac.enabled, ac.notice, ac.next_time, ac.msg
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from active_checks ac
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join checks c on ac.check_id = c.id
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join nodes n on c.node_id = n.id
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join commands co on c.command_id = co.id
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order by n.name, co.name;`
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SQLShowUnhandledChecks = `select c.id, n.name, co.name, ac.mapping_id, ac.states[1] as state,
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ac.enabled, ac.notice, ac.next_time, ac.msg
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from active_checks ac
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join checks c on ac.check_id = c.id
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join nodes n on c.node_id = n.id
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join commands co on c.command_id = co.id
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where ac.states[1] > 0
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order by n.name, co.name;`
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SQLShowUnhandledGroups = `select g.name, n.name, max(ac.state[1])
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from groups g
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join nodes_groups ng on g.id = ng.group_id
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join nodes n on ng.node_id = n.id
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join checks c on n.id = c.node_id
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join active_checks ac on c.id = ac.check_id
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where ac.states[1] > 0
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group by g.name, n.name;`
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)
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var (
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TmplCheckList = `<doctype html>
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Templates = map[string]string{
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"header": `<doctype html>
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<html>
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<head>
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<title>check list</title>
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<head>
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<title>{{ .Title }}</title>
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<style type="text/css">
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* { font-size: 100%; }
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form section {
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@ -346,7 +377,7 @@ var (
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td.state-99 { background: gray; } */
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</style>
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<script>
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setTimeout(function() { location.reload(true) }, 30000)
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setTimeout(function() { location.reload(true) }, 30000)
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</script>
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</head>
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<body>
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@ -357,7 +388,9 @@ var (
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<li><a href="/unhandled/hosts">unhandled hosts</a></li>
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<li><a href="/unhandled/groups">unhandled groups</a></li>
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</ul>
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</nav>
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</nav>`,
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"footer": `</body></html>`,
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"checklist": `{{ template "header" . }}
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<form method="post" action="/action">
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<section>
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<nav>
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@ -388,7 +421,7 @@ var (
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{{ range .Checks }}
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<tr>
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<td><input type="checkbox" name="checks" value="{{ .CheckID }}" /></td>
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<td>{{ if ne $current .NodeName }}{{ $current = .NodeName }}{{ .NodeName }}{{ end }}</td>
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<td>{{ if ne $current .NodeName }}{{ $current = .NodeName }}<a href="/checks?node_id={{ .NodeId }}">{{ .NodeName }}</a>{{ end }}</td>
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<td class="state-{{ .MappingId }}-{{ .State }}">{{ .CommandName }} - {{ (index $mapping .MappingId .State).Title }}</td>
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<td>{{ .NextTime.Format "2006.01.02 15:04:05" }}</td>
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<td><pre>{{ .Msg }}</pre></td>
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@ -398,8 +431,49 @@ var (
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</table>
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</content>
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</form>
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</body>
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</html>`
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{{ template "footer" . }}`,
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"grouplist": `{{ template "header" . }}
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<form method="post" action="/action">
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<section>
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<nav>
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<div class="option">
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<label for="action">Action</label>
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<select name="action">
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<option value="reschedule">run now</option>
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<option value="mute">mute</option>
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<option value="unmute">unmute</option>
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<option value="ack">acknowledge</option>
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<option value="disable">disable</option>
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<option value="enable">enable</option>
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<option value="comment">comment</option>
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</select>
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</div>
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<div class="option">
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<label for="comment">comment</label>
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<input name="comment" />
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</div>
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<button type="submit">submit</button>
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</nav>
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<content>
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<table>
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<thead><tr><th></th><th>group</th><th>host</th><th>worst state</th></tr></thead>
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<tbody>
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{{ $current := "" }}
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{{ $mapping := .Mappings }}
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{{ range .Groups }}
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<tr>
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<td><input type="checkbox" name="nodes" value="{{ .NodeId }}" /></td>
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<td>{{ if ne $current .Name }}{{ $current = .Name }}{{ .Name }}{{ end }}</td>
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<td><a href="/checks?node_id={{ .NodeId }}">{{ .NodeName }}</a></td>
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<td class="state-{{ .MappingId }}-{{ .State }}">{{ (index $mapping .MappingId .State).Title }}</td>
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</tr>
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{{ end }}
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</tbody>
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</table>
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</content>
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</form>
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{{ template "footer" . }}`,
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}
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TmplUnhandledGroups = `TODO`
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Funcs = template.FuncMap{
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"sub": func(base, amount int) int { return base - amount },
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