Added basic HTTP API, lots of internal state work and libvirt domain XML parsing

src/libvirt/libvirt.go

@@ -1,43 +1,20 @@
+/*
+Package libvirt for the overlord VM management software!
+Has a useful XML export for libvirt domain xml parsing.
+*/
 package libvirt
 
 import (
+	"errors"
+
 	log "bitsnthings.dev/overlord/src/log"
 	libvirt "libvirt.org/go/libvirt"
 )
 
+var errDomainNotFound = errors.New("Clould not find the domain in internal state!")
+
 type libvirtConnectFunc func(string) (*libvirt.Connect, error)
 
-type Domains struct {
-	Active   map[string]map[string]libvirt.Domain
-	Inactive map[string]map[string]libvirt.Domain
-}
-
-type Stats struct {
-}
-
-type Libvirt struct {
-	Hosts   map[string]*libvirt.Connect
-	ROHosts map[string]*libvirt.Connect
-	Domains Domains
-	// Auth   libvirt.ConnectAuth
-	// Flags  libvirt.ConnectFlags
-	Stats Stats
-}
-
-func New() Libvirt {
-	return Libvirt{
-		map[string]*libvirt.Connect{},
-		map[string]*libvirt.Connect{},
-		Domains{},
-		Stats{},
-	}
-}
-
-func (virt *Libvirt) GetStatus() {
-	virt.getAllDomains()
-	log.PrintLog(log.TRACE, "Fetched libvirt cluster status.")
-}
-
 func (virt *Libvirt) IsReadOnly(uri string) bool {
 	if _, ok := virt.ROHosts[uri]; ok {
 		return true
@@ -62,3 +39,29 @@ func (virt *Libvirt) ConnectMany(cstrs []string, connFn libvirtConnectFunc) {
 		virt.Connect(cstr, connFn)
 	}
 }
+
+func (virt *Libvirt) GetXMLFlags(uri string) libvirt.DomainXMLFlags {
+	var flags libvirt.DomainXMLFlags
+	if !virt.IsReadOnly(uri) {
+		flags = libvirt.DOMAIN_XML_INACTIVE + libvirt.DOMAIN_XML_INACTIVE
+	}
+	return flags
+}
+
+func (virt *Libvirt) GetDomainAndStatus(uri string, uuid string) (libvirt.Domain, bool, error) {
+	if host, exists := virt.Domains.Active[uri]; exists {
+		dom, exists := host[uuid]
+		if exists {
+			return dom, true, nil
+		}
+		return libvirt.Domain{}, false, errDomainNotFound
+	}
+	if host, exists := virt.Domains.Inactive[uri]; exists {
+		dom, exists := host[uuid]
+		if exists {
+			return dom, false, nil
+		}
+		return libvirt.Domain{}, false, errDomainNotFound
+	}
+	return libvirt.Domain{}, false, errDomainNotFound
+}