// primeAgent writes the configuration file and tools with version vers
// for an agent with the given entity name. It returns the agent's
// configuration and the current tools.
func (s *agentSuite) primeAgent(c *gc.C, tag, password string, vers version.Binary) (agent.ConfigSetterWriter, *coretools.Tools) {
stor := s.Conn.Environ.Storage()
agentTools := envtesting.PrimeTools(c, stor, s.DataDir(), vers)
err := envtools.MergeAndWriteMetadata(stor, coretools.List{agentTools}, envtools.DoNotWriteMirrors)
c.Assert(err, gc.IsNil)
tools1, err := agenttools.ChangeAgentTools(s.DataDir(), tag, vers)
c.Assert(err, gc.IsNil)
c.Assert(tools1, gc.DeepEquals, agentTools)
stateInfo := s.StateInfo(c)
apiInfo := s.APIInfo(c)
conf, err := agent.NewAgentConfig(
agent.AgentConfigParams{
DataDir: s.DataDir(),
Tag: tag,
UpgradedToVersion: vers.Number,
Password: password,
Nonce: state.BootstrapNonce,
StateAddresses: stateInfo.Addrs,
APIAddresses: apiInfo.Addrs,
CACert: stateInfo.CACert,
})
conf.SetPassword(password)
c.Assert(conf.Write(), gc.IsNil)
s.primeAPIHostPorts(c)
return conf, agentTools
}
// ChangeAgentTools does the actual agent upgrade.
// It should be called just before an agent exits, so that
// it will restart running the new tools.
func (e *UpgradeReadyError) ChangeAgentTools() error {
agentTools, err := tools.ChangeAgentTools(e.DataDir, e.AgentName, e.NewTools)
if err != nil {
return err
}
logger.Infof("upgraded from %v to %v (%q)", e.OldTools, agentTools.Version, agentTools.URL)
return nil
}
func (t *ToolsSuite) TestChangeAgentTools(c *gc.C) {
files := []*testing.TarFile{
testing.NewTarFile("jujuc", 0755, "juju executable"),
testing.NewTarFile("jujud", 0755, "jujuc executable"),
}
data, checksum := testing.TarGz(files...)
testTools := &coretest.Tools{
URL: "http://foo/bar1",
Version: version.MustParseBinary("1.2.3-foo-bar"),
Size: int64(len(data)),
SHA256: checksum,
}
err := agenttools.UnpackTools(t.dataDir, testTools, bytes.NewReader(data))
c.Assert(err, gc.IsNil)
gotTools, err := agenttools.ChangeAgentTools(t.dataDir, "testagent", testTools.Version)
c.Assert(err, gc.IsNil)
c.Assert(*gotTools, gc.Equals, *testTools)
assertDirNames(c, t.toolsDir(), []string{"1.2.3-foo-bar", "testagent"})
assertDirNames(c, agenttools.ToolsDir(t.dataDir, "testagent"), []string{"jujuc", "jujud", toolsFile})
// Upgrade again to check that the link replacement logic works ok.
files2 := []*testing.TarFile{
testing.NewTarFile("foo", 0755, "foo content"),
testing.NewTarFile("bar", 0755, "bar content"),
}
data2, checksum2 := testing.TarGz(files2...)
tools2 := &coretest.Tools{
URL: "http://foo/bar2",
Version: version.MustParseBinary("1.2.4-foo-bar"),
Size: int64(len(data2)),
SHA256: checksum2,
}
err = agenttools.UnpackTools(t.dataDir, tools2, bytes.NewReader(data2))
c.Assert(err, gc.IsNil)
gotTools, err = agenttools.ChangeAgentTools(t.dataDir, "testagent", tools2.Version)
c.Assert(err, gc.IsNil)
c.Assert(*gotTools, gc.Equals, *tools2)
assertDirNames(c, t.toolsDir(), []string{"1.2.3-foo-bar", "1.2.4-foo-bar", "testagent"})
assertDirNames(c, agenttools.ToolsDir(t.dataDir, "testagent"), []string{"foo", "bar", toolsFile})
}
// primeStateAgent writes the configuration file and tools with version vers
// for an agent with the given entity name. It returns the agent's configuration
// and the current tools.
func (s *agentSuite) primeStateAgent(
c *gc.C, tag, password string, vers version.Binary) (agent.ConfigSetterWriter, *coretools.Tools) {
agentTools := envtesting.PrimeTools(c, s.Conn.Environ.Storage(), s.DataDir(), vers)
tools1, err := agenttools.ChangeAgentTools(s.DataDir(), tag, vers)
c.Assert(err, gc.IsNil)
c.Assert(tools1, gc.DeepEquals, agentTools)
stateInfo := s.StateInfo(c)
conf := writeStateAgentConfig(c, stateInfo, s.DataDir(), tag, password, vers)
s.primeAPIHostPorts(c)
return conf, agentTools
}
func (ctx *SimpleContext) DeployUnit(unitName, initialPassword string) (err error) {
// Check sanity.
svc := ctx.upstartService(unitName)
if svc.Installed() {
return fmt.Errorf("unit %q is already deployed", unitName)
}
// Link the current tools for use by the new agent.
tag := names.UnitTag(unitName)
dataDir := ctx.agentConfig.DataDir()
logDir := ctx.agentConfig.LogDir()
_, err = tools.ChangeAgentTools(dataDir, tag, version.Current)
toolsDir := tools.ToolsDir(dataDir, tag)
defer removeOnErr(&err, toolsDir)
result, err := ctx.api.ConnectionInfo()
if err != nil {
return err
}
logger.Debugf("state addresses: %q", result.StateAddresses)
logger.Debugf("API addresses: %q", result.APIAddresses)
containerType := ctx.agentConfig.Value(agent.ContainerType)
namespace := ctx.agentConfig.Value(agent.Namespace)
conf, err := agent.NewAgentConfig(
agent.AgentConfigParams{
DataDir: dataDir,
LogDir: logDir,
UpgradedToVersion: version.Current.Number,
Tag: tag,
Password: initialPassword,
Nonce: "unused",
// TODO: remove the state addresses here and test when api only.
StateAddresses: result.StateAddresses,
APIAddresses: result.APIAddresses,
CACert: ctx.agentConfig.CACert(),
Values: map[string]string{
agent.ContainerType: containerType,
agent.Namespace: namespace,
},
})
if err != nil {
return err
}
if err := conf.Write(); err != nil {
return err
}
defer removeOnErr(&err, conf.Dir())
// Install an upstart job that runs the unit agent.
logPath := path.Join(logDir, tag+".log")
cmd := strings.Join([]string{
path.Join(toolsDir, "jujud"), "unit",
"--data-dir", dataDir,
"--unit-name", unitName,
"--debug", // TODO: propagate debug state sensibly
}, " ")
// TODO(thumper): 2013-09-02 bug 1219630
// As much as I'd like to remove JujuContainerType now, it is still
// needed as MAAS still needs it at this stage, and we can't fix
// everything at once.
uconf := &upstart.Conf{
Service: *svc,
Desc: "juju unit agent for " + unitName,
Cmd: cmd,
Out: logPath,
Env: map[string]string{
osenv.JujuContainerTypeEnvKey: containerType,
},
}
return uconf.Install()
}