open-consul/command/snapshot_restore_test.go
James Phillips bc29610124 Adds support for snapshots and restores. (#2396)
* Updates Raft library to get new snapshot/restore API.

* Basic backup and restore working, but need some cleanup.

* Breaks out a snapshot module and adds a SHA256 integrity check.

* Adds snapshot ACL and fills in some missing comments.

* Require a consistent read for snapshots.

* Make sure snapshot works if ACLs aren't enabled.

* Adds a bit of package documentation.

* Returns an empty response from restore to avoid EOF errors.

* Adds API client support for snapshots.

* Makes internal file names match on-disk file snapshots.

* Adds DC and token coverage for snapshot API test.

* Adds missing documentation.

* Adds a unit test for the snapshot client endpoint.

* Moves the connection pool out of the client for easier testing.

* Fixes an incidental issue in the prepared query unit test.

I realized I had two servers in bootstrap mode so this wasn't a good setup.

* Adds a half close to the TCP stream and fixes panic on error.

* Adds client and endpoint tests for snapshots.

* Moves the pool back into the snapshot RPC client.

* Adds a TLS test and fixes half-closes for TLS connections.

* Tweaks some comments.

* Adds a low-level snapshot test.

This is independent of Consul so we can pull this out into a library
later if we want to.

* Cleans up snapshot and archive and completes archive tests.

* Sends a clear error for snapshot operations in dev mode.

Snapshots require the Raft snapshots to be readable, which isn't supported
in dev mode. Send a clear error instead of a deep-down Raft one.

* Adds docs for the snapshot endpoint.

* Adds a stale mode and index feedback for snapshot saves.

This gives folks a way to extract data even if the cluster has no
leader.

* Changes the internal format of a snapshot from zip to tgz.

* Pulls in Raft fix to cancel inflight before a restore.

* Pulls in new Raft restore interface.

* Adds metadata to snapshot saves and a verify function.

* Adds basic save and restore snapshot CLI commands.

* Gets rid of tarball extensions and adds restore message.

* Fixes an incidental bad link in the KV docs.

* Adds documentation for the snapshot CLI commands.

* Scuttle any request body when a snapshot is saved.

* Fixes archive unit test error message check.

* Allows for nil output writers in snapshot RPC handlers.

* Renames hash list Decode to DecodeAndVerify.

* Closes the client connection for snapshot ops.

* Lowers timeout for restore ops.

* Updates Raft vendor to get new Restore signature and integrates with Consul.

* Bounces the leader's internal state when we do a restore.
2016-10-25 19:20:24 -07:00

104 lines
1.9 KiB
Go

package command
import (
"io"
"io/ioutil"
"os"
"path"
"strings"
"testing"
"github.com/mitchellh/cli"
)
func TestSnapshotRestoreCommand_implements(t *testing.T) {
var _ cli.Command = &SnapshotRestoreCommand{}
}
func TestSnapshotRestoreCommand_noTabs(t *testing.T) {
assertNoTabs(t, new(SnapshotRestoreCommand))
}
func TestSnapshotRestoreCommand_Validation(t *testing.T) {
ui := new(cli.MockUi)
c := &SnapshotRestoreCommand{Ui: ui}
cases := map[string]struct {
args []string
output string
}{
"no file": {
[]string{},
"Missing FILE argument",
},
"extra args": {
[]string{"foo", "bar", "baz"},
"Too many arguments",
},
}
for name, tc := range cases {
// Ensure our buffer is always clear
if ui.ErrorWriter != nil {
ui.ErrorWriter.Reset()
}
if ui.OutputWriter != nil {
ui.OutputWriter.Reset()
}
code := c.Run(tc.args)
if code == 0 {
t.Errorf("%s: expected non-zero exit", name)
}
output := ui.ErrorWriter.String()
if !strings.Contains(output, tc.output) {
t.Errorf("%s: expected %q to contain %q", name, output, tc.output)
}
}
}
func TestSnapshotRestoreCommand_Run(t *testing.T) {
srv, client := testAgentWithAPIClient(t)
defer srv.Shutdown()
waitForLeader(t, srv.httpAddr)
ui := new(cli.MockUi)
c := &SnapshotSaveCommand{Ui: ui}
dir, err := ioutil.TempDir("", "snapshot")
if err != nil {
t.Fatalf("err: %v", err)
}
defer os.RemoveAll(dir)
file := path.Join(dir, "backup.tgz")
args := []string{
"-http-addr=" + srv.httpAddr,
file,
}
f, err := os.Create(file)
if err != nil {
t.Fatalf("err: %v", err)
}
snap, _, err := client.Snapshot().Save(nil)
if err != nil {
f.Close()
t.Fatalf("err: %v", err)
}
if _, err := io.Copy(f, snap); err != nil {
f.Close()
t.Fatalf("err: %v", err)
}
if err := f.Close(); err != nil {
t.Fatalf("err: %v", err)
}
code := c.Run(args)
if code != 0 {
t.Fatalf("bad: %d. %#v", code, ui.ErrorWriter.String())
}
}