func updatePlacements(view db.Database, spec stitch.Stitch) {
stitchPlacements := toDBPlacements(spec.QueryPlacements())
key := func(val interface{}) interface{} {
pVal := val.(db.Placement)
return struct {
tl string
rule db.PlacementRule
}{pVal.TargetLabel, pVal.Rule}
}
_, addSet, removeSet := join.HashJoin(stitchPlacements,
db.PlacementSlice(view.SelectFromPlacement(nil)), key, key)
for _, toAddIntf := range addSet {
toAdd := toAddIntf.(db.Placement)
newPlacement := view.InsertPlacement()
newPlacement.TargetLabel = toAdd.TargetLabel
newPlacement.Rule = toAdd.Rule
view.Commit(newPlacement)
}
for _, toRemove := range removeSet {
view.Remove(toRemove.(db.Placement))
}
}
func updateConnections(view db.Database, spec stitch.Stitch) {
scs, vcs := stitch.ConnectionSlice(spec.QueryConnections()),
view.SelectFromConnection(nil)
dbcKey := func(val interface{}) interface{} {
c := val.(db.Connection)
return stitch.Connection{
From: c.From,
To: c.To,
MinPort: c.MinPort,
MaxPort: c.MaxPort,
}
}
pairs, stitchs, dbcs := join.HashJoin(scs, db.ConnectionSlice(vcs), nil, dbcKey)
for _, dbc := range dbcs {
view.Remove(dbc.(db.Connection))
}
for _, stitchc := range stitchs {
pairs = append(pairs, join.Pair{L: stitchc, R: view.InsertConnection()})
}
for _, pair := range pairs {
stitchc := pair.L.(stitch.Connection)
dbc := pair.R.(db.Connection)
dbc.From = stitchc.From
dbc.To = stitchc.To
dbc.MinPort = stitchc.MinPort
dbc.MaxPort = stitchc.MaxPort
view.Commit(dbc)
}
}
func machineTxn(view db.Database, stitch stitch.Stitch) error {
// XXX: How best to deal with machines that don't specify enough information?
maxPrice, _ := stitch.QueryFloat("MaxPrice")
stitchMachines := toDBMachine(stitch.QueryMachines(), maxPrice)
dbMachines := view.SelectFromMachine(nil)
scoreFun := func(left, right interface{}) int {
stitchMachine := left.(db.Machine)
dbMachine := right.(db.Machine)
switch {
case dbMachine.Provider != stitchMachine.Provider:
return -1
case dbMachine.Region != stitchMachine.Region:
return -1
case dbMachine.Size != "" && stitchMachine.Size != dbMachine.Size:
return -1
case dbMachine.Role != db.None && dbMachine.Role != stitchMachine.Role:
return -1
case dbMachine.DiskSize != stitchMachine.DiskSize:
return -1
case dbMachine.PrivateIP == "":
return 2
case dbMachine.PublicIP == "":
return 1
default:
return 0
}
}
pairs, bootList, terminateList := join.Join(stitchMachines, dbMachines, scoreFun)
for _, toTerminate := range terminateList {
toTerminate := toTerminate.(db.Machine)
view.Remove(toTerminate)
}
for _, bootSet := range bootList {
bootSet := bootSet.(db.Machine)
pairs = append(pairs, join.Pair{L: bootSet, R: view.InsertMachine()})
}
for _, pair := range pairs {
stitchMachine := pair.L.(db.Machine)
dbMachine := pair.R.(db.Machine)
dbMachine.Role = stitchMachine.Role
dbMachine.Size = stitchMachine.Size
dbMachine.DiskSize = stitchMachine.DiskSize
dbMachine.Provider = stitchMachine.Provider
dbMachine.Region = stitchMachine.Region
dbMachine.SSHKeys = stitchMachine.SSHKeys
view.Commit(dbMachine)
}
return nil
}
func clusterTxn(view db.Database, stitch stitch.Stitch) error {
namespace := stitch.QueryString("Namespace")
if namespace == "" {
namespace = "DEFAULT_NAMESPACE"
msg := "policy did not specify 'Namespace', defaulting to '%s'"
log.Warn(fmt.Sprintf(msg, namespace))
}
cluster, err := view.GetCluster()
if err != nil {
cluster = view.InsertCluster()
}
cluster.Namespace = namespace
cluster.Spec = stitch.String()
view.Commit(cluster)
return nil
}
func updateStitch(t *testing.T, conn db.Conn, stitch stitch.Stitch) {
conn.Transact(func(view db.Database) error {
cluster, err := view.GetCluster()
if err != nil {
cluster = view.InsertCluster()
}
cluster.Spec = stitch.String()
view.Commit(cluster)
return nil
})
assert.Nil(t, conn.Transact(updateTxn))
}
func queryContainers(spec stitch.Stitch) []db.Container {
containers := map[int]*db.Container{}
for _, c := range spec.QueryContainers() {
containers[c.ID] = &db.Container{
Command: c.Command,
Image: c.Image,
Env: c.Env,
}
}
for label, ids := range spec.QueryLabels() {
for _, id := range ids {
containers[id].Labels = append(containers[id].Labels, label)
}
}
var ret []db.Container
for _, c := range containers {
ret = append(ret, *c)
}
return ret
}
func aclTxn(view db.Database, stitch stitch.Stitch) error {
cluster, err := view.GetCluster()
if err != nil {
return err
}
machines := view.SelectFromMachine(func(m db.Machine) bool {
return m.PublicIP != ""
})
acls := resolveACLs(stitch.QueryStrSlice("AdminACL"))
for _, m := range machines {
acls = append(acls, m.PublicIP+"/32")
}
sort.Strings(acls)
cluster.ACLs = acls
view.Commit(cluster)
return nil
}