func (w ConfigWriter) Write(cfg config.Config) error {
var err error
nodeName := cfg.Consul.Agent.NodeName
if nodeName == "" {
nodeName, err = nodeNameFor(cfg.Path.DataDir, cfg.Node)
if err != nil {
w.logger.Error("config-writer.write.determine-node-name.failed", err)
return err
}
}
w.logger.Info("config-writer.write.determine-node-name", lager.Data{
"node-name": nodeName,
})
w.logger.Info("config-writer.write.generate-configuration")
consulConfig := config.GenerateConfiguration(cfg, w.dir, nodeName)
data, err := json.Marshal(&consulConfig)
if err != nil {
return err
}
w.logger.Info("config-writer.write.write-file", lager.Data{
"config": consulConfig,
})
err = ioutil.WriteFile(filepath.Join(w.dir, "config.json"), data, os.ModePerm)
if err != nil {
w.logger.Error("config-writer.write.write-file.failed", errors.New(err.Error()))
return err
}
w.logger.Info("config-writer.write.success")
return nil
}
"performance": map[string]int{
"raft_multiplier": 1,
},
}
body, err := json.Marshal(conf)
Expect(err).To(BeNil())
Expect(buf).To(MatchJSON(body))
Expect(logger.Messages()).To(ContainSequence([]fakes.LoggerMessage{
{
Action: "config-writer.write.generate-configuration",
},
{
Action: "config-writer.write.write-file",
Data: []lager.Data{{
"config": config.GenerateConfiguration(cfg, configDir, "node-0"),
}},
},
{
Action: "config-writer.write.success",
},
}))
})
Context("node name", func() {
Context("when node-name.json does not exist", func() {
It("uses the job name-index and writes node-name.json", func() {
err := writer.Write(cfg)
Expect(err).NotTo(HaveOccurred())
buf, err := ioutil.ReadFile(filepath.Join(dataDir, "node-name.json"))
"path/filepath"
"github.com/cloudfoundry-incubator/consul-release/src/confab/config"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
)
var _ = Describe("ConsulConfigDefiner", func() {
Describe("GenerateConfiguration", func() {
var consulConfig config.ConsulConfig
var configDir string
BeforeEach(func() {
configDir = "/var/vcap/jobs/consul_agent/config"
consulConfig = config.GenerateConfiguration(config.Config{}, configDir, "")
})
Describe("datacenter", func() {
It("defaults to empty string", func() {
Expect(consulConfig.Datacenter).To(Equal(""))
})
Context("when the `consul.agent.datacenter` property is set", func() {
It("uses that value", func() {
consulConfig = config.GenerateConfiguration(config.Config{
Consul: config.ConfigConsul{
Agent: config.ConfigConsulAgent{
Datacenter: "my-datacenter",
},
},