/
edit_topology.go
168 lines (128 loc) · 4.54 KB
/
edit_topology.go
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package replicasets
import (
"fmt"
"strings"
"time"
"github.com/avast/retry-go"
"github.com/fatih/structs"
"github.com/tarantool/cartridge-cli/cli/cluster"
"github.com/tarantool/cartridge-cli/cli/connector"
"github.com/tarantool/cartridge-cli/cli/project"
"github.com/tarantool/cartridge-cli/cli/templates"
)
type JoinInstanceOpts struct {
URI string `structs:"uri"`
}
type EditReplicasetOpts struct {
ReplicasetUUID string `structs:"uuid,omitempty"`
ReplicasetAlias string `structs:"alias,omitempty"`
Roles []string `structs:"roles,omitempty"`
AllRW *bool `structs:"all_rw,omitempty"`
Weight *float64 `structs:"weight,omitempty"`
VshardGroup *string `structs:"vshard_group,omitempty"`
JoinInstances []JoinInstanceOpts `structs:"join_servers,omitempty"`
FailoverPriorityUUIDs []string `structs:"failover_priority,omitempty"`
}
type EditReplicasetsListOpts []*EditReplicasetOpts
type EditInstanceOpts struct {
InstanceUUID string `structs:"uuid,omitempty"`
Expelled bool `structs:"expelled,omitempty"`
}
type EditInstancesListOpts []*EditInstanceOpts
func (listOpts *EditReplicasetsListOpts) ToMapsList() []map[string]interface{} {
optsMapsList := make([]map[string]interface{}, len(*listOpts))
for i, opts := range *listOpts {
optsMapsList[i] = structs.Map(opts)
}
return optsMapsList
}
func (listOpts *EditInstancesListOpts) ToMapsList() []map[string]interface{} {
optsMapsList := make([]map[string]interface{}, len(*listOpts))
for i, opts := range *listOpts {
optsMapsList[i] = structs.Map(opts)
}
return optsMapsList
}
var (
editReplicasetsBody string
)
func init() {
var err error
formatTopologyReplicasetFunc, err := templates.GetTemplatedStr(
&formatTopologyReplicasetFuncTemplate, map[string]string{
"FormatTopologyReplicasetFuncName": formatTopologyReplicasetFuncName,
},
)
if err != nil {
panic(fmt.Errorf("Failed to compute get topology replicaset function body: %s", err))
}
editReplicasetsBody, err = templates.GetTemplatedStr(&editReplicasetsBodyTemplate, map[string]string{
"FormatTopologyReplicasetFuncName": formatTopologyReplicasetFuncName,
"FormatTopologyReplicasetFunc": formatTopologyReplicasetFunc,
})
if err != nil {
panic(fmt.Errorf("Failed to compute edit_topology call body: %s", err))
}
}
func editReplicasetsList(conn *connector.Conn, opts *EditReplicasetsListOpts) (*TopologyReplicasets, error) {
waitForHealthy, err := cluster.HealthCheckIsNeeded(conn)
if err != nil {
return nil, err
}
req := connector.EvalReq(editReplicasetsBody, opts.ToMapsList())
var newTopologyReplicasetsList []*TopologyReplicaset
if err := conn.ExecTyped(req, &newTopologyReplicasetsList); err != nil {
return nil, fmt.Errorf("Failed to edit topology: %s", err)
}
newTopologyReplicasets := getTopologyReplicasetsFromList(newTopologyReplicasetsList)
if waitForHealthy {
if err := waitForClusterIsHealthy(conn); err != nil {
return nil, fmt.Errorf("Failed to wait for cluster to become healthy: %s", err)
}
}
return newTopologyReplicasets, nil
}
func editReplicaset(conn *connector.Conn, opts *EditReplicasetOpts) (*TopologyReplicaset, error) {
editReplicasetsOpts := &EditReplicasetsListOpts{opts}
newTopologyReplicasets, err := editReplicasetsList(conn, editReplicasetsOpts)
if err != nil {
return nil, err
}
if len(*newTopologyReplicasets) != 1 {
return nil, project.InternalError("One replicaset should be returned, got %#v", newTopologyReplicasets)
}
newTopologyReplicaset := newTopologyReplicasets.GetSomeReplicaset()
return newTopologyReplicaset, nil
}
func editInstances(conn *connector.Conn, opts *EditInstancesListOpts) (bool, error) {
req := connector.EvalReq(editInstanceBody, opts.ToMapsList())
if _, err := conn.Exec(req); err != nil {
return false, fmt.Errorf("Failed to edit topology: %s", err)
}
return true, nil
}
func waitForClusterIsHealthy(conn *connector.Conn) error {
retryOpts := []retry.Option{
retry.MaxDelay(1 * time.Second),
retry.Attempts(30),
retry.LastErrorOnly(true),
retry.RetryIf(func(err error) bool {
return !strings.Contains(err.Error(), "Received in bad format")
}),
}
checkClusterIsHealthyFunc := func() error {
req := connector.EvalReq(getClusterIsHealthyBody)
var isHealthy bool
if err := conn.ExecTyped(req, &isHealthy); err != nil {
return fmt.Errorf("Failed to check cluster is healthy: %s", err)
}
if !isHealthy {
return fmt.Errorf("Cluster isn't healthy")
}
return nil
}
return retry.Do(checkClusterIsHealthyFunc, retryOpts...)
}
var (
tableTemplate = `{ {{ .OptsString }} }`
)