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edce939f6e
When performing the downgrade operation, users can confirm whether each member is ready to be downgraded using the field 'storageVersion'. If it's equal to the 'target version' in the downgrade command, then it's ready to be downgraded; otherwise, the etcd member is still in progress of processing the db file.
245 lines
9.0 KiB
Go
245 lines
9.0 KiB
Go
// Copyright 2016 The etcd Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package command
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import (
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"errors"
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"fmt"
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"strings"
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pb "go.etcd.io/etcd/api/v3/etcdserverpb"
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v3 "go.etcd.io/etcd/client/v3"
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"go.etcd.io/etcd/pkg/v3/cobrautl"
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"github.com/dustin/go-humanize"
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)
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type printer interface {
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Del(v3.DeleteResponse)
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Get(v3.GetResponse)
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Put(v3.PutResponse)
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Txn(v3.TxnResponse)
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Watch(v3.WatchResponse)
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Grant(r v3.LeaseGrantResponse)
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Revoke(id v3.LeaseID, r v3.LeaseRevokeResponse)
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KeepAlive(r v3.LeaseKeepAliveResponse)
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TimeToLive(r v3.LeaseTimeToLiveResponse, keys bool)
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Leases(r v3.LeaseLeasesResponse)
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MemberAdd(v3.MemberAddResponse)
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MemberRemove(id uint64, r v3.MemberRemoveResponse)
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MemberUpdate(id uint64, r v3.MemberUpdateResponse)
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MemberPromote(id uint64, r v3.MemberPromoteResponse)
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MemberList(v3.MemberListResponse)
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EndpointHealth([]epHealth)
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EndpointStatus([]epStatus)
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EndpointHashKV([]epHashKV)
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MoveLeader(leader, target uint64, r v3.MoveLeaderResponse)
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DowngradeValidate(r v3.DowngradeResponse)
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DowngradeEnable(r v3.DowngradeResponse)
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DowngradeCancel(r v3.DowngradeResponse)
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Alarm(v3.AlarmResponse)
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RoleAdd(role string, r v3.AuthRoleAddResponse)
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RoleGet(role string, r v3.AuthRoleGetResponse)
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RoleDelete(role string, r v3.AuthRoleDeleteResponse)
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RoleList(v3.AuthRoleListResponse)
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RoleGrantPermission(role string, r v3.AuthRoleGrantPermissionResponse)
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RoleRevokePermission(role string, key string, end string, r v3.AuthRoleRevokePermissionResponse)
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UserAdd(user string, r v3.AuthUserAddResponse)
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UserGet(user string, r v3.AuthUserGetResponse)
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UserList(r v3.AuthUserListResponse)
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UserChangePassword(v3.AuthUserChangePasswordResponse)
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UserGrantRole(user string, role string, r v3.AuthUserGrantRoleResponse)
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UserRevokeRole(user string, role string, r v3.AuthUserRevokeRoleResponse)
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UserDelete(user string, r v3.AuthUserDeleteResponse)
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AuthStatus(r v3.AuthStatusResponse)
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}
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func NewPrinter(printerType string, isHex bool) printer {
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switch printerType {
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case "simple":
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return &simplePrinter{isHex: isHex}
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case "fields":
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return &fieldsPrinter{newPrinterUnsupported("fields")}
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case "json":
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return newJSONPrinter(isHex)
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case "protobuf":
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return newPBPrinter()
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case "table":
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return &tablePrinter{newPrinterUnsupported("table")}
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}
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return nil
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}
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type printerRPC struct {
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printer
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p func(interface{})
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}
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func (p *printerRPC) Del(r v3.DeleteResponse) { p.p((*pb.DeleteRangeResponse)(&r)) }
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func (p *printerRPC) Get(r v3.GetResponse) { p.p((*pb.RangeResponse)(&r)) }
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func (p *printerRPC) Put(r v3.PutResponse) { p.p((*pb.PutResponse)(&r)) }
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func (p *printerRPC) Txn(r v3.TxnResponse) { p.p((*pb.TxnResponse)(&r)) }
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func (p *printerRPC) Watch(r v3.WatchResponse) { p.p(&r) }
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func (p *printerRPC) Grant(r v3.LeaseGrantResponse) { p.p(r) }
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func (p *printerRPC) Revoke(id v3.LeaseID, r v3.LeaseRevokeResponse) { p.p(r) }
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func (p *printerRPC) KeepAlive(r v3.LeaseKeepAliveResponse) { p.p(r) }
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func (p *printerRPC) TimeToLive(r v3.LeaseTimeToLiveResponse, keys bool) { p.p(&r) }
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func (p *printerRPC) Leases(r v3.LeaseLeasesResponse) { p.p(&r) }
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func (p *printerRPC) MemberAdd(r v3.MemberAddResponse) { p.p((*pb.MemberAddResponse)(&r)) }
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func (p *printerRPC) MemberRemove(id uint64, r v3.MemberRemoveResponse) {
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p.p((*pb.MemberRemoveResponse)(&r))
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}
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func (p *printerRPC) MemberUpdate(id uint64, r v3.MemberUpdateResponse) {
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p.p((*pb.MemberUpdateResponse)(&r))
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}
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func (p *printerRPC) MemberPromote(id uint64, r v3.MemberPromoteResponse) {
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p.p((*pb.MemberPromoteResponse)(&r))
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}
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func (p *printerRPC) MemberList(r v3.MemberListResponse) { p.p((*pb.MemberListResponse)(&r)) }
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func (p *printerRPC) Alarm(r v3.AlarmResponse) { p.p((*pb.AlarmResponse)(&r)) }
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func (p *printerRPC) MoveLeader(leader, target uint64, r v3.MoveLeaderResponse) {
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p.p((*pb.MoveLeaderResponse)(&r))
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}
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func (p *printerRPC) DowngradeValidate(r v3.DowngradeResponse) { p.p((*pb.DowngradeResponse)(&r)) }
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func (p *printerRPC) DowngradeEnable(r v3.DowngradeResponse) { p.p((*pb.DowngradeResponse)(&r)) }
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func (p *printerRPC) DowngradeCancel(r v3.DowngradeResponse) { p.p((*pb.DowngradeResponse)(&r)) }
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func (p *printerRPC) RoleAdd(_ string, r v3.AuthRoleAddResponse) { p.p((*pb.AuthRoleAddResponse)(&r)) }
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func (p *printerRPC) RoleGet(_ string, r v3.AuthRoleGetResponse) { p.p((*pb.AuthRoleGetResponse)(&r)) }
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func (p *printerRPC) RoleDelete(_ string, r v3.AuthRoleDeleteResponse) {
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p.p((*pb.AuthRoleDeleteResponse)(&r))
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}
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func (p *printerRPC) RoleList(r v3.AuthRoleListResponse) { p.p((*pb.AuthRoleListResponse)(&r)) }
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func (p *printerRPC) RoleGrantPermission(_ string, r v3.AuthRoleGrantPermissionResponse) {
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p.p((*pb.AuthRoleGrantPermissionResponse)(&r))
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}
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func (p *printerRPC) RoleRevokePermission(_ string, _ string, _ string, r v3.AuthRoleRevokePermissionResponse) {
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p.p((*pb.AuthRoleRevokePermissionResponse)(&r))
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}
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func (p *printerRPC) UserAdd(_ string, r v3.AuthUserAddResponse) { p.p((*pb.AuthUserAddResponse)(&r)) }
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func (p *printerRPC) UserGet(_ string, r v3.AuthUserGetResponse) { p.p((*pb.AuthUserGetResponse)(&r)) }
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func (p *printerRPC) UserList(r v3.AuthUserListResponse) { p.p((*pb.AuthUserListResponse)(&r)) }
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func (p *printerRPC) UserChangePassword(r v3.AuthUserChangePasswordResponse) {
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p.p((*pb.AuthUserChangePasswordResponse)(&r))
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}
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func (p *printerRPC) UserGrantRole(_ string, _ string, r v3.AuthUserGrantRoleResponse) {
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p.p((*pb.AuthUserGrantRoleResponse)(&r))
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}
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func (p *printerRPC) UserRevokeRole(_ string, _ string, r v3.AuthUserRevokeRoleResponse) {
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p.p((*pb.AuthUserRevokeRoleResponse)(&r))
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}
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func (p *printerRPC) UserDelete(_ string, r v3.AuthUserDeleteResponse) {
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p.p((*pb.AuthUserDeleteResponse)(&r))
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}
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func (p *printerRPC) AuthStatus(r v3.AuthStatusResponse) {
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p.p((*pb.AuthStatusResponse)(&r))
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}
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type printerUnsupported struct{ printerRPC }
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func newPrinterUnsupported(n string) printer {
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f := func(interface{}) {
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cobrautl.ExitWithError(cobrautl.ExitBadFeature, errors.New(n+" not supported as output format"))
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}
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return &printerUnsupported{printerRPC{nil, f}}
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}
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func (p *printerUnsupported) EndpointHealth([]epHealth) { p.p(nil) }
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func (p *printerUnsupported) EndpointStatus([]epStatus) { p.p(nil) }
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func (p *printerUnsupported) EndpointHashKV([]epHashKV) { p.p(nil) }
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func (p *printerUnsupported) MoveLeader(leader, target uint64, r v3.MoveLeaderResponse) { p.p(nil) }
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func (p *printerUnsupported) DowngradeValidate(r v3.DowngradeResponse) { p.p(nil) }
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func (p *printerUnsupported) DowngradeEnable(r v3.DowngradeResponse) { p.p(nil) }
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func (p *printerUnsupported) DowngradeCancel(r v3.DowngradeResponse) { p.p(nil) }
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func makeMemberListTable(r v3.MemberListResponse) (hdr []string, rows [][]string) {
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hdr = []string{"ID", "Status", "Name", "Peer Addrs", "Client Addrs", "Is Learner"}
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for _, m := range r.Members {
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status := "started"
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if len(m.Name) == 0 {
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status = "unstarted"
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}
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isLearner := "false"
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if m.IsLearner {
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isLearner = "true"
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}
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rows = append(rows, []string{
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fmt.Sprintf("%x", m.ID),
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status,
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m.Name,
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strings.Join(m.PeerURLs, ","),
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strings.Join(m.ClientURLs, ","),
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isLearner,
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})
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}
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return hdr, rows
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}
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func makeEndpointHealthTable(healthList []epHealth) (hdr []string, rows [][]string) {
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hdr = []string{"endpoint", "health", "took", "error"}
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for _, h := range healthList {
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rows = append(rows, []string{
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h.Ep,
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fmt.Sprintf("%v", h.Health),
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h.Took,
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h.Error,
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})
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}
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return hdr, rows
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}
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func makeEndpointStatusTable(statusList []epStatus) (hdr []string, rows [][]string) {
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hdr = []string{"endpoint", "ID", "version", "storage version", "db size", "db size in use", "is leader", "is learner", "raft term",
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"raft index", "raft applied index", "errors"}
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for _, status := range statusList {
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rows = append(rows, []string{
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status.Ep,
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fmt.Sprintf("%x", status.Resp.Header.MemberId),
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status.Resp.Version,
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status.Resp.StorageVersion,
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humanize.Bytes(uint64(status.Resp.DbSize)),
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humanize.Bytes(uint64(status.Resp.DbSizeInUse)),
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fmt.Sprint(status.Resp.Leader == status.Resp.Header.MemberId),
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fmt.Sprint(status.Resp.IsLearner),
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fmt.Sprint(status.Resp.RaftTerm),
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fmt.Sprint(status.Resp.RaftIndex),
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fmt.Sprint(status.Resp.RaftAppliedIndex),
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fmt.Sprint(strings.Join(status.Resp.Errors, ", ")),
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})
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}
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return hdr, rows
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}
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func makeEndpointHashKVTable(hashList []epHashKV) (hdr []string, rows [][]string) {
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hdr = []string{"endpoint", "hash"}
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for _, h := range hashList {
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rows = append(rows, []string{
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h.Ep,
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fmt.Sprint(h.Resp.Hash),
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})
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}
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return hdr, rows
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}
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