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Bring in safe mode support (#8478)

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This PR refactors object layer handling such
that upon failure in sub-system initialization
server reaches a stage of safe-mode operation
wherein only certain API operations are enabled
and available.

This allows for fixing many scenarios such as

 - incorrect configuration in vault, etcd,
   notification targets
 - missing files, incomplete config migrations
   unable to read encrypted content etc
 - any other issues related to notification,
   policies, lifecycle etc
This commit is contained in:
Harshavardhana
2019-11-09 09:27:23 -08:00
committed by kannappanr
parent 1c90a6bd49
commit 822eb5ddc7
41 changed files with 1129 additions and 830 deletions
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14
cmd/test-utils_test.go
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@@ -370,11 +370,7 @@ func UnstartedTestServer(t TestErrHandler, instanceType string) TestServer {
globalPolicySys = NewPolicySys()
globalPolicySys.Init(buckets, objLayer)
globalNotificationSys, err = NewNotificationSys(globalServerConfig, testServer.Disks)
if err != nil {
t.Fatalf("Unable to initialize notification system %s", err)
}
globalNotificationSys = NewNotificationSys(testServer.Disks)
globalNotificationSys.Init(buckets, objLayer)
globalLifecycleSys = NewLifecycleSys()
@@ -1640,10 +1636,10 @@ func newTestObjectLayer(endpoints EndpointList) (newObject ObjectLayer, err erro
globalIAMSys.Init(xl)
globalPolicySys = NewPolicySys()
globalNotificationSys, err = NewNotificationSys(globalServerConfig, endpoints)
if err != nil {
return xl, err
}
globalPolicySys.Init(nil, xl)
globalNotificationSys = NewNotificationSys(endpoints)
globalNotificationSys.Init(nil, xl)
return xl, nil
}