forked from juju/juju
/
util.go
95 lines (82 loc) · 2.94 KB
/
util.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
// Copyright 2014 Canonical Ltd.
// Licensed under the AGPLv3, see LICENCE file for details.
package util
import (
"fmt"
"strconv"
"github.com/juju/errors"
"github.com/juju/loggo"
"github.com/DavinZhang/juju/agent"
agenterrors "github.com/DavinZhang/juju/cmd/jujud/agent/errors"
"github.com/DavinZhang/juju/mongo"
jworker "github.com/DavinZhang/juju/worker"
)
var (
EnsureMongoServer = mongo.EnsureServer
)
// AgentDone processes the error returned by an exiting agent.
func AgentDone(logger loggo.Logger, err error) error {
err = errors.Cause(err)
switch err {
case jworker.ErrTerminateAgent, jworker.ErrRebootMachine, jworker.ErrShutdownMachine:
// These errors are swallowed here because we want to exit
// the agent process without error, to avoid the init system
// restarting us.
err = nil
}
if ug, ok := err.(*agenterrors.UpgradeReadyError); ok {
if err := ug.ChangeAgentTools(logger); err != nil {
// Return and let the init system deal with the restart.
err = errors.Annotate(err, "cannot change agent binaries")
logger.Infof(err.Error())
return err
}
}
if err == jworker.ErrRestartAgent {
logger.Warningf("agent restarting")
}
return err
}
// NewEnsureServerParams creates an EnsureServerParams from an agent
// configuration.
var NewEnsureServerParams = newEnsureServerParams
func newEnsureServerParams(agentConfig agent.Config) (mongo.EnsureServerParams, error) {
// If oplog size is specified in the agent configuration, use that.
// Otherwise leave the default zero value to indicate to EnsureServer
// that it should calculate the size.
var oplogSize int
if oplogSizeString := agentConfig.Value(agent.MongoOplogSize); oplogSizeString != "" {
var err error
if oplogSize, err = strconv.Atoi(oplogSizeString); err != nil {
return mongo.EnsureServerParams{}, fmt.Errorf("invalid oplog size: %q", oplogSizeString)
}
}
// If numa ctl preference is specified in the agent configuration, use that.
// Otherwise leave the default false value to indicate to EnsureServer
// that numactl should not be used.
var numaCtlPolicy bool
if numaCtlString := agentConfig.Value(agent.NUMACtlPreference); numaCtlString != "" {
var err error
if numaCtlPolicy, err = strconv.ParseBool(numaCtlString); err != nil {
return mongo.EnsureServerParams{}, fmt.Errorf("invalid numactl preference: %q", numaCtlString)
}
}
si, ok := agentConfig.StateServingInfo()
if !ok {
return mongo.EnsureServerParams{}, fmt.Errorf("agent config has no state serving info")
}
params := mongo.EnsureServerParams{
APIPort: si.APIPort,
StatePort: si.StatePort,
Cert: si.Cert,
PrivateKey: si.PrivateKey,
CAPrivateKey: si.CAPrivateKey,
SharedSecret: si.SharedSecret,
SystemIdentity: si.SystemIdentity,
OplogSize: oplogSize,
SetNUMAControlPolicy: numaCtlPolicy,
MemoryProfile: agentConfig.MongoMemoryProfile(),
JujuDBSnapChannel: agentConfig.JujuDBSnapChannel(),
}
return params, nil
}