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Documentation/upgrades: clean up 3.2, 3.3 guides

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Make headers consistent.

Signed-off-by: Gyuho Lee <gyuhox@gmail.com>
This commit is contained in:
Gyuho Lee 2017-12-19 21:25:52 -08:00
parent 1b3ed912a2
commit 3d924aedc8
2 changed files with 80 additions and 53 deletions
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93
Documentation/upgrades/upgrade_3_2.md
View File

@ -6,57 +6,38 @@ In the general case, upgrading from etcd 3.1 to 3.2 can be a zero-downtime, roll
Before [starting an upgrade](#upgrade-procedure), read through the rest of this guide to prepare.
### Server upgrade checklists (breaking change)
### Upgrade checklists
3.2 now rejects domains names for `--listen-peer-urls` and `--listen-client-urls` (3.1 only prints out warnings), since domain name is invalid for network interface binding. Make sure that those URLs are properly formated as `scheme://IP:port`.
Highlighted breaking changes in 3.2.
See [issue #6336](https://github.com/coreos/etcd/issues/6336) for more contexts.
#### Change in gRPC dependency (>=3.2.10)
### Client upgrade checklists (>=3.2.0)
3.2.10 or later now requires [grpc/grpc-go](https://github.com/grpc/grpc-go/releases) `v1.7.5` (<=3.2.9 requires `v1.2.1`).
3.2 introduces two breaking changes.
##### Deprecate `grpclog.Logger`
Previously, `clientv3.Lease.TimeToLive` API returned `lease.ErrLeaseNotFound` on non-existent lease ID. 3.2 instead returns TTL=-1 in its response and no error (see [#7305](https://github.com/coreos/etcd/pull/7305)).
Before
```go
// when leaseID does not exist
resp, err := TimeToLive(ctx, leaseID)
resp == nil
err == lease.ErrLeaseNotFound
```
After
```go
// when leaseID does not exist
resp, err := TimeToLive(ctx, leaseID)
resp.TTL == -1
err == nil
```
`clientv3.NewFromConfigFile` is moved to `yaml.NewConfig`.
`grpclog.Logger` has been deprecated in favor of [`grpclog.LoggerV2`](https://github.com/grpc/grpc-go/blob/master/grpclog/loggerv2.go). `clientv3.Logger` is now `grpclog.LoggerV2`.
Before
```go
import "github.com/coreos/etcd/clientv3"
clientv3.NewFromConfigFile
clientv3.SetLogger(log.New(os.Stderr, "grpc: ", 0))
```
After
```go
import clientv3yaml "github.com/coreos/etcd/clientv3/yaml"
clientv3yaml.NewConfig
import "github.com/coreos/etcd/clientv3"
import "google.golang.org/grpc/grpclog"
clientv3.SetLogger(grpclog.NewLoggerV2(os.Stderr, os.Stderr, os.Stderr))
// log.New above cannot be used (not implement grpclog.LoggerV2 interface)
```
### Client upgrade checklists (>=3.2.10)
##### Deprecate `grpc.ErrClientConnTimeout`
Note that >=3.2.10 requires `grpc/grpc-go` v1.7.4 (<=3.2.9 with v1.2.1), which introduces some breaking changes.
Previously, `grpc.ErrClientConnTimeout` error is returned on client dial time-outs. >=3.2.10 instead returns `context.DeadlineExceeded` (see [#8504](https://github.com/coreos/etcd/issues/8504)).
Previously, `grpc.ErrClientConnTimeout` error is returned on client dial time-outs. 3.2 instead returns `context.DeadlineExceeded` (see [#8504](https://github.com/coreos/etcd/issues/8504)).
Before
@ -83,6 +64,52 @@ if err == context.DeadlineExceeded {
}
```
#### Change in `--listen-peer-urls` and `--listen-client-urls`
3.2 now rejects domains names for `--listen-peer-urls` and `--listen-client-urls` (3.1 only prints out warnings), since domain name is invalid for network interface binding. Make sure that those URLs are properly formated as `scheme://IP:port`.
See [issue #6336](https://github.com/coreos/etcd/issues/6336) for more contexts.
#### Change in `clientv3.Lease.TimeToLive` API
Previously, `clientv3.Lease.TimeToLive` API returned `lease.ErrLeaseNotFound` on non-existent lease ID. 3.2 instead returns TTL=-1 in its response and no error (see [#7305](https://github.com/coreos/etcd/pull/7305)).
Before
```go
// when leaseID does not exist
resp, err := TimeToLive(ctx, leaseID)
resp == nil
err == lease.ErrLeaseNotFound
```
After
```go
// when leaseID does not exist
resp, err := TimeToLive(ctx, leaseID)
resp.TTL == -1
err == nil
```
#### Change in `clientv3.NewFromConfigFile`
`clientv3.NewFromConfigFile` is moved to `yaml.NewConfig`.
Before
```go
import "github.com/coreos/etcd/clientv3"
clientv3.NewFromConfigFile
```
After
```go
import clientv3yaml "github.com/coreos/etcd/clientv3/yaml"
clientv3yaml.NewConfig
```
### Server upgrade checklists
#### Upgrade requirements

40
Documentation/upgrades/upgrade_3_3.md
View File

@ -111,23 +111,7 @@ curl -L http://localhost:2379/v3beta/kv/put \
Requests to `/v3alpha` endpoints will redirect to `/v3beta`, and `/v3alpha` will be removed in 3.4 release.
#### `gcr.io/etcd-development/etcd` as primary container registry
etcd uses [`gcr.io/etcd-development/etcd`](https://gcr.io/etcd-development/etcd) as a primary container registry, and [`quay.io/coreos/etcd`](https://quay.io/coreos/etcd) as secondary.
Before
```bash
docker pull quay.io/coreos/etcd:v3.2.5
```
After
```bash
docker pull gcr.io/etcd-development/etcd:v3.3.0
```
#### Change in `Snapshot` API error type
#### Change in clientv3 `Snapshot` API error type
Previously, clientv3 `Snapshot` API returned raw [`grpc/*status.statusError`] type error. v3.3 now translates those errors to corresponding public error types, to be consistent with other APIs.
@ -173,7 +157,7 @@ _, err = io.Copy(f, rc)
err == context.DeadlineExceeded
```
#### Deprecate `golang.org/x/net/context` imports
#### Change in `golang.org/x/net/context` imports
`clientv3` has deprecated `golang.org/x/net/context`. If a project vendors `golang.org/x/net/context` in other code (e.g. etcd generated protocol buffer code) and imports `github.com/coreos/etcd/clientv3`, it requires Go 1.9+ to compile.
@ -191,9 +175,9 @@ import "context"
cli.Put(context.Background(), "f", "v")
```
#### Upgrade grpc/grpc-go to `v1.7.4`
#### Change in gRPC dependency
3.3 now requires [grpc/grpc-go](https://github.com/grpc/grpc-go/releases) `v1.7.4`.
3.3 now requires [grpc/grpc-go](https://github.com/grpc/grpc-go/releases) `v1.7.5`.
##### Deprecate `grpclog.Logger`
@ -245,6 +229,22 @@ if err == context.DeadlineExceeded {
}
```
#### Change in official container registry
etcd now uses [`gcr.io/etcd-development/etcd`](https://gcr.io/etcd-development/etcd) as a primary container registry, and [`quay.io/coreos/etcd`](https://quay.io/coreos/etcd) as secondary.
Before
```bash
docker pull quay.io/coreos/etcd:v3.2.5
```
After
```bash
docker pull gcr.io/etcd-development/etcd:v3.3.0
```
### Server upgrade checklists
#### Upgrade requirements