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fn: runner status and docker load images (#1116)

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* fn: runner status and docker load images

Introducing a function run for pure runner Status
calls. Previously, Status gRPC calls returned active
inflight request counts with the purpose of a simple
health checker. However this is not sufficient since
it does not show if agent or docker is healthy. With
this change, if pure runner is configured with a status
image, that image is executed through docker. The
call uses zero memory/cpu/tmpsize settings to ensure
resource tracker does not block it.

However, operators might not always have a docker
repository accessible/available for status image. Or
operators might not want the status to go over the
network. To allow such cases, and in general possibly
caching docker images, added a new environment variable
FN_DOCKER_LOAD_FILE. If this is set, fn-agent during
startup will load these images that were previously
saved with 'docker save' into docker.
This commit is contained in:
Tolga Ceylan
2018-07-12 13:58:38 -07:00
committed by GitHub
parent 62461d93a7
commit 5dc5740a54
26 changed files with 745 additions and 57 deletions
Download Patch File Download Diff File Expand all files Collapse all files

148
api/agent/grpc/runner.pb.go
View File

@@ -575,7 +575,15 @@ func _RunnerMsg_OneofSizer(msg proto.Message) (n int) {
}
type RunnerStatus struct {
Active int32 `protobuf:"varint,2,opt,name=active" json:"active,omitempty"`
Active int32 `protobuf:"varint,2,opt,name=active" json:"active,omitempty"`
Failed bool `protobuf:"varint,3,opt,name=failed" json:"failed,omitempty"`
Id string `protobuf:"bytes,4,opt,name=id" json:"id,omitempty"`
Details string `protobuf:"bytes,5,opt,name=details" json:"details,omitempty"`
ErrorCode int32 `protobuf:"varint,6,opt,name=errorCode" json:"errorCode,omitempty"`
ErrorStr string `protobuf:"bytes,7,opt,name=errorStr" json:"errorStr,omitempty"`
CreatedAt string `protobuf:"bytes,8,opt,name=createdAt" json:"createdAt,omitempty"`
StartedAt string `protobuf:"bytes,9,opt,name=startedAt" json:"startedAt,omitempty"`
CompletedAt string `protobuf:"bytes,10,opt,name=completedAt" json:"completedAt,omitempty"`
}
func (m *RunnerStatus) Reset() { *m = RunnerStatus{} }
@@ -590,6 +598,62 @@ func (m *RunnerStatus) GetActive() int32 {
return 0
}
func (m *RunnerStatus) GetFailed() bool {
if m != nil {
return m.Failed
}
return false
}
func (m *RunnerStatus) GetId() string {
if m != nil {
return m.Id
}
return ""
}
func (m *RunnerStatus) GetDetails() string {
if m != nil {
return m.Details
}
return ""
}
func (m *RunnerStatus) GetErrorCode() int32 {
if m != nil {
return m.ErrorCode
}
return 0
}
func (m *RunnerStatus) GetErrorStr() string {
if m != nil {
return m.ErrorStr
}
return ""
}
func (m *RunnerStatus) GetCreatedAt() string {
if m != nil {
return m.CreatedAt
}
return ""
}
func (m *RunnerStatus) GetStartedAt() string {
if m != nil {
return m.StartedAt
}
return ""
}
func (m *RunnerStatus) GetCompletedAt() string {
if m != nil {
return m.CompletedAt
}
return ""
}
func init() {
proto.RegisterType((*TryCall)(nil), "TryCall")
proto.RegisterType((*DataFrame)(nil), "DataFrame")
@@ -745,44 +809,46 @@ var _RunnerProtocol_serviceDesc = grpc.ServiceDesc{
func init() { proto.RegisterFile("runner.proto", fileDescriptor0) }
var fileDescriptor0 = []byte{
// 611 bytes of a gzipped FileDescriptorProto
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}

8
api/agent/grpc/runner.proto
View File

@@ -64,6 +64,14 @@ message RunnerMsg {
message RunnerStatus {
int32 active = 2; // Number of currently inflight responses
bool failed = 3; // if status was successful or not
string id = 4; // call id if status image was used
string details = 5; // details for logging/debug
int32 errorCode = 6; // error code if not successful
string errorStr = 7; // error description if not successful
string createdAt = 8; // call latency details: initialization time
string startedAt = 9; // call latency details: start time in container
string completedAt = 10; // call latency details: end time
}
service RunnerProtocol {